OXIRANE (ETHYLENE OXIDE) POLYURETHANE COATINGS

Description

BACKGROUND OF THE INVENTION

Hydrophilic, i.e., water loving coatings (hereafter referred to as “WLC”) are a utilitarian chemistry that may be used for hydrophilic and hydrophobic polyurethane epoxies as a replacement of isocyanate-based coatings on, for example, medical devices. WLC chemistry is attractive since prior art isocyanates-based coating compositions and coatings that may be used present possible health concerns. Another concern, with isocyanates, is the isocyanate sensitivity to water which reacts therewith to evolve carbon dioxide. That side reaction produces a very rough coating due to micro roughness when carbon dioxide exits the coating forming small pin holes. However, once the isocyanate is end capped to form polyurethane epoxy (glycidyl carbamate) in accordance with this invention, reactions with water and off gassing are no longer a concern and health concerns are significantly reduced. The use of WLC chemistry, in medical devices, and other coating areas, is thusly very attractive particularly for medical device applications.

SUMMARY OF THE INVENTION

WLC synthesis reactions can be optimized generally by running at lower temperatures which tends to reduce side reactions. Reaction order is also a very important consideration in WLC development. In the case of oxirane polyurethane-based WLC's the methylenebisdiisocyanate (MDI) should be either a liquid or a melted solid before polyol additions and that adipic acid dihydrazide is fully reacted before adding dibutyltin dilaurate catalyst and glycidol. Adding glycidol too early may result in amine reactions with glycidol, and addition of catalyst too early may alter the chain extending network and form a less desirable coating. WLC glycidyl (oxirane functionality) termination has shown an increase in coating adhesive and cohesive strength.

In the above formulae:

“n₁”, relating to PEO, falls in the range of about 500 to about 45,000 or higher;

“n₂”, relating to polyTHF, falls in the range of about 3 to about 600 or higher;

“n₃”, relating to PDEGA, falls in the range of about 2 to about 60,000 or higher; and

“n₄” is lower alkylene, n₄ falling in the range of 1 to about 4.

• • Note that the n₄ alkylene group optionally couples other isocyanate moieties as is noted below.
• 1. Glycidol, PEO (polyethylene oxide), dimethylol propionic acid (DMPA), polytetrahydrofuran (polyTHF), and poly [di(ethylene glycol)adipate] (PDEGA hydroxyl) can react with methylenebisdiisocyanate for chain extension.
• 2. Adipic acid dihydrazide (AAD) reacts with isocyanate for chain extension.
• 3. End group is terminated with glycidol for glycidyl functionality.
• 4. Reaction kinetics are faster with an aromatic group next to isocyanate.
  • The monomers and oligomers (including the genericized polymer constituents) and synthetic route noted about was used to produce coatings/compositions of this invention.

Side reaction free reaction scheme to terminate with epoxy end groups and minimize side reactions.

The terminal oxirane polyurethane chemistry coatings of this invention primary reactions that make up the polyurethane coatings of this invention are listed below:

1. Terminal Oxirane Polyurethane Reactive Coating Compositions are an extremely lubricious durable coating that contains both hard and soft segments. This structure contains polyurethane and epoxy groups. This is a modified aqueous and solvent soluble material to increase physical crosslinks via hydrogen bonding. This structure relies on physical crosslinks for strength through hard segment domains. The hard segments contain aromatic groups, which also stack by pi-bond interactions. “Hard segments” as the term is used herein means substantially crystalline.

2. Terminal a Composition Comprising Epoxy Urethane Ester Carboxylic Acid Alkylene Oxide Reactive Coating Compositions

This example describes the preparation of an inventive water-loving coating (WLC) Epoxy urethane ester carboxylic acid alkylene oxide reactive coating compositions. A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 16.8 g of methylenebisdiisocyanate (MDI) >99.0% was charged to the reactor. The temperature was held at 40 degree C. for 40 minutes for solid softening. Next, 62.5 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 72.5 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 3.35 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40.degree. C. To this homogenized mixture 150 grams of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40 degrees C. for one hour. After one hour 3.7 grams glycidol were added and the temperature was held overnight until reaction completion.

3. Terminal Oxirane Polyurethane Urea Chain Extender/(No Addition of Water).

Reactive Coating Compositions are an extremely lubricious durable coating that contains both hard and soft segments. The structure contains polyurethane, urea and epoxy groups. This is a modified aqueous and solvent soluble material that employs urea formation to increase physical crosslinks via hydrogen bonding. Carboxylic acid functionality in the polymer backbone and glycidol end groups add crosslinking. The epoxy end groups help with adhesion and cohesive strength. This structure relies on crosslinks much like the polyurethane epoxy but contains a chain extender based off adipic acid dihydrazide.

4. Terminal Oxirane Polyurethane Urea Chain Extender/(Water Excess).

Reactive Coating Compositions are an extremely lubricious durable coating that contains both hard and soft segments i.e., crystalline and amorphous segments. This structure contains polyurethane, urea and epoxy groups. This is a modified aqueous and solvent soluble material employs urea formation to increase physical crosslinks via hydrogen bonding. Carboxylic acid functionality in the polymer backbone and glycidol end groups add crosslinking, the reaction of isocyanate forms an unstable carbamic acid that forms an amine. The amine quickly reacts with isocyanate functionality to form a urea.

Water functionality reacts with excess MD1 isocyanate to release CO₂ and form an amine. The amine functionality reacts with excess isocyanate to form additional urea linkages. The water/amine reaction is highly, physically crosslink the system and enhance its mechanical properties. The active hydrogen of the secondary amine can further react with excess isocyanate to slightly crosslink the system. The combination of urea, and polyurethane hard segments and glycidol functionalities lead to a superior crosslinking system.

Water Reactions with Isocyanate to Form Urea

5. Terminal Oxirane Polyurethane Amide/Amide Urea/(No Addition of Water).

Reactive Coating Compositions are an extremely lubricious durable coating that contains both hard and soft segments. This is structure contains polyurethane, urea, amide (amide to form urea) and epoxy groups. This is a modified aqueous and solvent soluble material employs amide formation that may undergo additional reactions to form urea. Urea and hard segments yield an increase in hydrogen bonding for physical crosslinks, carboxylic acid functionality in the polymer backbone and glycidol end groups add crosslinking. Amide functionality can continue to react with isocyanate to form urea. This crosslinking system helps increase durability of the basecoat.

Isocyanate Reaction with Amide to Form Crosslinked Urea

For example, DMPA was used to construct the polymer backbone for the introducing carboxylic acid functionality. This functionality reacts with excess MDI isocyanate around 80 C to form an amide bond. The amide reaction is to slightly cross-link the system and increase its mechanical properties. The active hydrogen of the amide functionally can further react with excess isocyanate to form urea. The combination of amide, urea, and polyurethane hard segments and glycidol functionalities lead to a superior crosslinking system.

Isocyanate Reaction with Amide to Form Crosslinked Urea

Examples 46-48 illustrate this aspect of the invention.

For example, DMPA was used to construct the polymer backbone for the introducing carboxylic acid functionality. This functionality reacts with excess MDI isocyanate around 80 C to form an amide bond. The amide reaction is to slightly crosslink the system and increase mechanical properties. The active hydrogen of amide can further react with excess isocyanate to form urea. The combination of amide, urea, and polyurethane hard segments and glycidol functionalities lead to a superior crosslinking system.

The following references, patents, and patent applications are incorporated by reference herein in their entireties.

5,576,072	Hostettler et al., Process for producing slippery,
	tenaciously adhering hydrogel coatings . . .
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	polyetherurethane. based lubricious coatings
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	polyurethane based coatings
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	the same
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	preparation . . .
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	hydrogel coatings . . .
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	(urethane urea) having aromatic-alphatic isocyanate
7,226,972	Zhao et al., Process for crosslinking hyaluronic acid
	to polymers
7,652,166	Haubennestel et al., Biuret compounds . . .
5,104,930	Rinde et al., Polyurea gel compositions . . .
5,175,229	Braatz et al., Biocompatible polyuria urethane hydrated
	polymers
5,576,072	Hostettler et al., Medical device having hydrophilic
	coatings . . .
5,688,855	Stoy et al., Thin film hydrophilic coatings
5,776,611	Elton et al., Crosslinked hydrogel coatings
20110015724	Kocher et al., Medical device having hydrophilic
	coatings
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Also, specifically incorporated by reference herein in its entirety is applicant's in concurrently filed patent application Ser. No. ______, entitled “Modified Hyaluronate Hydrophilic Compositions, Coatings and Methods.” Attorney's Docket Number LRM-35819.

EXAMPLES OF COMPOSITION 1

Example 1

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-1). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 9.375 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 4.925 g of Poly [di(ethylene glycol) adipate] average M_n ˜500, 27.25 g of Poly(tetrahydrofuran) average M_n ˜2,900, was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 53.57 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 100 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. One drop Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 2.8 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 1 (E-1)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	9.375	125	0.075
Poly [di(ethylene glycol) adipate]	4.925	250	0.0197
average Mn ~500
Poly(tetrahydrofuran)	27.25	1450	0.018793
average Mn ~2,900
Poly (ethylene oxide)	53.57	50000	0.001071
average Mv 100,000
glycidol	2.8	74	0.037838
			0.077402

Example 2

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-2). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 4.787 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 27.423 g of Poly(tetrahydrofuran) average M_n ˜2,900, was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 53.57 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 50 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. One drop of Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.8 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 2 (E-2)	grams	eg. Wt	moles

4,4′-Methylenebis	4.787	125	0.038296
(phenyl isocyanate)
Poly(tetrahydrofuran)	27.423	1450	0.018912
average Mn ~2,900
Poly (ethylene oxide)	53.57	50000	0.001071
average Mv 100,000
glycidol	1.8	74	0.024324
			0.044308

Example 3

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-3). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 109.99 g of Poly(tetrahydrofuran) average M_n ˜2,900 was added and homogenized by stirring for 45 minutes at 40° C. To this homogenized mixture of 290 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5% was added. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 5.5051 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 3 (E-3)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	19.694	125	0.157552
Poly(tetrahydrofuran) average Mn~2,900	109.99	1450	0.075855
glycidol	5.5051	74	0.074393
			0.150248

Example 4

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-4). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 19.464 g of Poly[di(ethylene glycol) adipate] average M_n ˜2500, 47.23 g of Poly(tetrahydrofuran) average M_n ˜2,900 was added, in the following order and homogenized by stirring for 45 minutes at 40° C. To this homogenized mixture 108.28 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 200 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 250 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 4.048 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 4 (E-4)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	18.964	125	0.151712
Poly [di(ethylene glycol) adipate]	19.464	1250	0.015571
average Mn~2,500
Poly(tetrahydrofuran) average Mn~2,900	47.23	1450	0.032572
Poly (ethylene oxide) average Mv 100,000	108.28	50000	0.002166
glycidol	4.048	74	0.054703
			0.105012

EXAMPLES FOR COMPOSITION 2

Example 5

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-5). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 6.562 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 14.4 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 16.28 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 0.6903 g of 2,2-Bis(hydroxymethyl) propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 50.0 of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 100 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 0.3129 grams glycidol were added then 0.0741 grams of water were added after 45 minutes and the temperature was held overnight until reaction completion.

Example 5 (E-5)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	6.562	125	0.052496
Poly [di(ethylene glycol) adipate]	14.4	1250	0.01152
average Mn~2500
Poly(tetrahydroftu-an) average Mn~2,900	16.28	1450	0.011228
2,2-Bis(hydroxymethyl)propionic acid	0.693	67.5	0.010267
Poly (ethylene oxide) average Mv 100,000	50	50000	0.001
glycidol	0.3129	74	0.004228
			0.038243

Example 6

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-6). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 10.33 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 25.82 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 29.95 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 1.38 g of 2,2-Bis(hydroxymethyl) propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 30.98 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.52 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 6 (E-6)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	10.33	125	0.08264
Poly [di(ethylene glycol) adipate]	25.82	1250	0.020656
average Mn~2500
Poly(tetrahydrofuran) average Mn~2,900	29.95	1450	0.020655
2,2-Bis(hydroxymethyl)propionic acid	1.38	67.5	0.020444
Poly (ethylene oxide) average Mv 100,000	30.98	50000	0.00062
glycidol	1.52	74	0.020541
			0.082916

Example 7

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-7). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 16.8 g of 1,6-Diisocyanatohexane >99.0% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 62.5 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 72.5 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 3.35 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 1-Methyl-2-pyrrolidinone anhydrous, 99.5% was added. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 3.7 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 7 (E-7)	grams	eg. Wt	moles

1,6-Diisocyanatohexane	16.8	84	0.2
Poly [di(ethylene glycol) adipate]	62.5	1250	0.05
average Mn~2,500
Poly(tetrahydrofuran) average Mn~2,900	72.5	1450	0.05
2,2-Bis(hydroxymethyl)propionic acid	3.35	67.5	0.04963
Poly (ethylene oxide) average Mv 100,000	72.5	50000	0.00145
glycidol	3.7	74	0.05
			0.20108

EXAMPLES FOR COMPOSITION 3

Example 8

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-8). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 20.14 g of 4,4′-Methylenebis(cyclohexyl isocyanate), mixture of isomers 90% was charged to the reactor. The temperature was held at 40 degree C. for 40 minutes for solid softening. Next, 62.16 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 3.061 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 43.34 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 300 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Six drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 3.2192 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 7.5 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 8 (E-8)	Grams	eg. Wt	moles

of 4,4′-Methylenebis(cyclohexyl	20.14	131	0.153740458
isocyanate)
Poly(tetrahydrofuran) average	43.34	1450	0.029889655
Mn~2,900
2,2-Bis(hydroxymethyl)propionic acid	3.061	67.5	0.045348148
Poly (ethylene oxide) average	62.16	50000	0.0012432
Mn 100,000
Adipic acid dihydrazide	3.2192	87.1	0.036959816
glycidol	7.5	74	0.101351351
			0.214792171

Example 9

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-9). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 134.85 g of Poly(tetrahydrofuran) average M_n ˜2,900, was added and homogenized by stirring for 40 minutes at 40° C. To this homogenized mixture 216.75 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 290 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.956 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 0.33 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 9 (E-9)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	134.85	125	1.0788
Poly (ethylene oxide) average Mv 100,000	216.75	50000	0.004335
Adipic acid dihydrazide	1.956	87.1	0.0225028
glycidol	0.33	74	0.004459
Poly(tetrahydrofuran) average Mn~2,900	134.85	1450	0.093
			0.1242968

Example 10

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-10). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 33.379 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 47.255 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 2.000 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 216.748 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.956 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 0.33 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 10 (E-10)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	18.964	125	0.151712
Poly [di(ethylene glycol) adipate]	33.379	1250	0.0267032
average Mn 2500
Poly(tetrahydrofuran) average	47.255	1450	0.03258
Mn~2,900,
2,2-Bis(hydroxymethyl)propionic acid	2.000 g	67.5	0.029629
Poly (ethylene oxide) average	216.748	50000	0.04335
Mv 100,000
Adipic acid dihydrazide	1.956	87.1	0.02245569
glycidol	0.33	74	0.00445
			0.15916789

Example 11

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-11). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.972 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes, for solid softening. Next, 33.29 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 47.92 g of Poly(tetrahydro-furan) average M_n ˜2,900, and 1.994 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 43.349 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 290 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.958 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 2.426 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 11 (E-11)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	18.792	125	0.150336
Poly [di(ethylene glycol) adipate]	33.29	1250	0.026632
average Mn~2,500
Poly(tetrahydrofuran) average Mn~2,900	47.92	1450	0.03304828
2,2-Bis(hydroxymethyl)propionic acid	1.994	67.5	0.02954074
Poly (ethylene oxide) average Mv 100,000	43.349	50000	0.00086698
Adipic acid dihydrazide	1.958	87.1	0.02247991
glycidol	2.426	74	0.03278378
			0.14535169

EXAMPLES FOR COMPOSITION 4

Example 12

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-12). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 40.456 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 45.911 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 1.939 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 210.0 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 290 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 250 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.37 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 1.436 grams glycidol were added and the temperature was held overnight until reaction completion. The final addition involved 0.3533 grams water to form a urea.

Example 12 (E-12)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	18.964	125	0.151712
Poly [di(ethylene glycol) adipate]	40.456	1250	0.0323648
average Mn~2,500
Poly(tetrahydrofuran) average	45.911	1450	0.031662759
Mn~2,900
2,2-Bis(hydroxymethyl)propionic acid	1.939	67.5	0.028725926
Poly (ethylene oxide) average	210	50000	0.0042
Mv 100,000
Adipic acid dihydrazide	1.37	87.1	0.015729047
glycidol	1.436	74	0.019405405
			0.132087937
WATER	0.3533	18	0.01963

Example 13

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-13). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 33.38 g of Poly [di(ethylene glycol) adipate] average M_n ˜2500, 47.23 g of Poly(tetrahydrofuran) average M_n ˜2,900 was added, and 1.99 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 45 minutes at 40° C. To this homogenized mixture 53.57 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 200 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 250 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.354 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 2.427 grams glycidol were added and the temperature was held overnight until reaction completion. The final addition involved 0.2409 grams water to form a urea.

Example 13 (E-13)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	18.964	125	0.151712
Poly [di(ethylene glycol) adipate]	33.38	1250	0.026704
average Mn~2,500
Poly(tetrahydrofuran) average	47.25	1450	0.032586207
Mn~2,900
2,2-Bis(hydroxymethyl)propionic acid	1.9999	67.5	0.029628148
Poly (ethylene oxide) average	53.57	50000	0.0010714
Mv 100,000
Adipic acid dihydrazide	1.354	87.1	0.01554535
glycidol	2.427	74	0.032797297
			0.138332403
WATER	0.2409	18	0.013382

EXAMPLES FOR COMPOSITION 5

Example 14

This example describes the preparation of an inventive water-loving coating (WLC) glycidyl carbamate dispersion (E-14). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 40,457 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 45.911 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 1.939 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 210.71 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 290 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40° C. for one hour. After one hour 1.3789 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 1.436 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 14 (E-14) POLYURETHANE
UREA W/EXCESS NCO	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	18.964	125	0.151712
Poly [di(ethylene glycol) adipate]	40.457	1250	0.0323656
average Mn~2,500
Poly(tetrahydrofuran) average	45.911	1450	0.031662759
Mn~2,900
2,2-Bis(hydroxymethyl)propionic	1.939	67.5	0.028725926
acid 98%
Adipic acid dihydrazide	1.3789	87.1	0.015831228
glycidol	1.436	74	0.019405405
			0.127990918

Examples for the Cross-Linking Reaction

Example 15

This example describes the preparation of an inventive water loving coating (WLC) glycidyl carbamate dispersion (E-15). A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 10.33 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 25.82 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 29.95 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 1.38 g of 2,2-Bis(hydroxymethyl) propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 30.98 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 60° C. for one hour for homopolymerization. After one hour 1.52 grams glycidol were added and the temperature was held for 72 hours.

Example 15 (E-15)	grams	eg. Wt	moles

4,4′-Methylenebis(phenyl isocyanate)	8.264	125	.066112
Poly [di(ethylene glycol) adipate]	20.656	1250	.0165248
average Mn~2500
Poly(tetrahydrofuran) average Mn~2,900	23.96	1450	.016524
2,2-Bis(hydroxymethyl)propionic acid	1.104	67.5	.0163552
Poly (ethylene oxide) average Mv 100,000	24.78	50000	.000496
glycidol	1.21	74	.016432
			.0663328

Example 16

This example describes the preparation of an inventive water-loving coating (WLC) Epoxy urethane alkylene oxide reactive coating compositions. A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40 degree C. for 40 minutes for solid softening. Next, 109.99 g of Poly(tetrahydrofuran) average M_n ˜2,900 was added and homogenized by stirring for 45 minutes at 40.degree. C. To this homogenized mixture of 290 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5% was added. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40 degrees C. for one hour. After one hour 5.5051 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 17

This example describes the preparation of an inventive water-loving coating (WLC) Epoxy urethane ester carboxylic acid alkylene oxide reactive coating compositions. A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 16.8 g of 1,6-Diisocyanatohexane >99.0% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 62.5 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 72.5 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 3.35 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 150 grams of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at ° C. for one hour. After one hour 3.7 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 18

This example describes the preparation of an inventive water-loving coating (WLC) Epoxy urethane urea carboxylic acid alkylene oxide reactive coating compositions. A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 33.379 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 47.255 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 2.000 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 216.748 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 40 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40 degrees C. for one hour. After one hour 1.956 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 0.33 grams glycidol were added and the temperature was held overnight until reaction completion.

Example 19

This example describes the preparation of an inventive water loving coating (WLC) Epoxy urethane urea carboxylic acid alkylene oxide reactive coating compositions. A 500 mL four neck reaction kettle with condenser, nitrogen inlet and model Gemini J-KEM temperature controller, mechanical stirrer, and heating mantel was used for resin synthesis. 18.964 g of 4,4′-Methylenebis(phenyl isocyanate) 98% was charged to the reactor. The temperature was held at 40° C. for 40 minutes for solid softening. Next, 40.456 g of Poly [di(ethylene glycol) adipate] average M_n ˜2,500, 45.911 g of Poly(tetrahydrofuran) average M_n ˜2,900, and 1.939 g of 2,2-Bis(hydroxymethyl)propionic acid 98% was added, in the following order and homogenized by stirring for 5 minutes at 40° C. To this homogenized mixture 210.0 g of Poly (ethylene oxide) average M_v 100,000, powder was added immediately following the addition of 290 g of 1-Methyl-2-pyrrolidinone anhydrous, 99.5%. The solution homogenized by mixing thoroughly for 250 minutes. Four drops Dibutyltin dilaurate 95% were added drop wise and the reaction mixture was held at 40 degrees C. for one hour. After one hour 1.37 g of Adipic acid dihydrazide ≧98% were added and mixed for two hours. To this homogenized mixture 1.436 grams glycidol were added and the temperature was held overnight until reaction completion. The final addition involved 0.3533 grams water to form a urea.

Summary of WLC Connectivity:

Basecoat terminal epoxy groups react with top coat epoxy groups through ARM amine functionality which increase adhesive strength. Basecoat chemistry contains Easaqua XM-502, which is added during the base coat mixing step. This aqueous isocyanate contains mpeg for use in water based applications. When this material is added to basecoat the isocyanate reacts with the carboxylic acid and open epoxide hydroxyl groups for basecoat cohesive strength. Easaqua XM-502 also reacts with top coat ARM and open hydroxyl groups for adhesive strength.

Once crosslinked, with Easaqua XM-502, then the base coat becomes a hydrogel. The hydrogel crosslinks take in water and swell via soft segments (Terethane, PEO and PEDGA) to render the coating water loving with high lubricity. Crosslink chemistry allows water to become retained within the walls of the soft segment without going into solution. This chemical and physical process leads to an extremely durable and lubricious coating.

WLC Oxirane Connections

A resin sample of an aqueous polyurethane polymer was submitted to NSL Analytical Laboratories on Nov. 2, 2009 for characterization of the polymer. Various Mass Spectrometry techniques were utilized in this characterization, including Electro-Spray Ionization (ESI), Matrix Assisted Laser Desorption Ionization (MALDI) and Chemical Ionization (CI).

The following are abbreviations are used to describe findings:

	GA	glycidol alcohol
	DEG	diethylene glycol
	DMPA	dimethylolpropionic acid
	DEGA	diethyleneglycol adipate
	MDI	methylene-diiscocyanate
	PEG	polyethylene glycol
	PDEGA	polydiethyleneglycol adipate

Abbreviations Used to Describe Findings

The sample was analyzed by 1H NMR with the sample dissolved in TCE. This was able to provide the monomer ratios listed below.

	MDI	1	mol
	Adipic	2.875	mol
	DEG	3.075	mol
	PTMEG (poly THF)	11	mol of THF
	PEG (i.e. PEO)	24	moles of EO
	Glycidolcarbonate	0.5	mol
	DMPA	0.27	mol

Monomer Ratios Determined by Proton NMR

Coating Example Composition 1

Materials as synthesized above were then applied to substrates noted below in the following fashion:

Coating Polyurethane Tungsten Loaded Jacket

• • a. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 1 AND 0.2 Easaqua XM-502 were then added to the formulation and stirred at 900 rpm for 15 minutes.
  • b. Basecoat (of this invention) was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • c. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • d. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.005 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.02 '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • e. Topcoat of the concurrently filed application noted above was then applied at a set speed for desired film thickness
  • f. The coating was then cured at ambient or thermally until fully cured
  • g. The final cured product resulted in a highly lubricious coating

Coating Metal Wire Substrate with Adhesion Promoter

Preparation of Adhesion Promoter

• • i. 100 mL ETOH (ETON anhydrous) provided by Sigma
  • ii. Add 5.0 gram water
  • Stir 10 minutes
  • iv. Add 3.84 grams 3-aminopropyltriethoxysilane (Provided by Gelest)
  • v. Mix 5 minutes
  • a. Coating wire with adhesion promoter
  • vi. Pour adhesion promoter into 100 mL burette (use shaker to mix)
  • vii. Place wire in graduated cylinder solution for 10 minutes
  • viii. Take wire out of solution and place in 125 C oven for 10 minutes

Polyurethane Tungsten Loaded Jacket

• • b. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 1 AND 0.015 Easaqua XM-502 were then added to the formulation and stirred at 900 rpm for 15 minutes.
  • c. The wire from step a-viii was taken out of the 125 C oven for coating
  • d. Basecoat was applied to the metal wire substrate with adhesion promoter, by dip coating, at a set speed for a desired film thickness
  • e. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • f. An aqueous dispersion intermediate layer was prepared with Easaqua XM-502 (0.015) crosslinker, '956 patent and adipic acid dihydrazide (0.02). To this crosslinker 8.8 grams composition 1 plus water were formulated and stirred at 1800 RPM for 5 minutes. The intermediate layer contained 0.01 TPP catalyst.
  • g. Intermediate layer was then applied at a set speed for desired film thickness
  • h. The intermediate layer was then cured either at ambient or thermally until no longer-tacky
  • i. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.01 grams adipic acid dihydrazide was added to a one ounce bottle then (2) 0.01 grams PZ-28 To this crosslinker 11.576 grams composition 2 was added to the crosslinker, which was stirred at 1800 rpm for 5 minutes
  • j. Topcoat was then applied at a set speed for desired film thickness
  • k. The coating was then cured at ambient or thermally until fully cured
  • l. The final cured product resulted in a highly lubricious coating

Coating Example Composition 3

Materials were then applied to substrates noted below in the following fashion:

Coating Polyurethane Tungsten Loaded Jacket

• • h. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 3 AND 0.2 Polyaziridine PZ-28 were then added to the formulation and stirred at 900 rpm for 15 minutes.
  • i. Basecoat was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • j. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • k. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.002 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.0252 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • l. Topcoat was then applied at a set speed for desired film thickness
  • m. The coating was then cured at ambient or thermally until fully cured
  • n. The final cured product resulted in a highly lubricious coating

Coating Metal Wire Substrate with Adhesion Promoter

Preparation of Adhesion Promoter

• • i. 100 mL ETOH (ETOH anhydrous) provided by Sigma
  • ii. Add 5.0 gram water
  • iii. Stir 10 minutes
  • 1. Add 3.84 grams 3-aminoethyltriethoxysilane (Provided by Gelest)
  • iv.
  • v. Mix 5 minutes
  • m. Coating wire with adhesion promoter
  • vi. Pour adhesion promoter into 100 mL burette (use shaker to mix)
  • vii. Place wire in graduated cylinder solution for 10 minutes
  • viii. Take wire out of solution and place in 125 C oven for 10 minutes

Polyurethane Tungsten Loaded Jacket

• • n. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 3 AND 0.2 Polyaziridine PZ-28 were then added to the formulation and stirred at 900 rpm for 15 minutes.
  • o. The wire from step viii was taken out of the 125 C oven for coating
  • p. Basecoat was applied to the metal wire substrate with adhesion promoter, by dip coating, at a set speed for a desired film thickness
  • q. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • r. An aqueous dispersion topcoat was prepared with crosslinker in the following order; (1) 0.002 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.0252 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • s. Topcoat was then applied at a set speed for desired film thickness
  • t. The coating was then cured at ambient or thermally until fully cured
  • u. The final cured product resulted in a highly lubricious coating

Coating Example Composition 5

Materials were then applied to substrates noted below in the following fashion:

Coating Polyurethane Tungsten Loaded Jacket

• • o. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 5 and stirred at 900 rpm for 15 minutes.
  • p. Basecoat was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • q. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • r. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.0005 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.0000271 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • s. Topcoat was then applied at a set speed for desired film thickness
  • t. The coating was then cured at ambient or thermally until fully cured
  • u. The final cured product resulted in a highly lubricious coating

Coating Metal Wire Substrate with Adhesion Promoter

Preparation of Adhesion Promoter

• • i. 100 mL ETOH (ETOH anhydrous) provided by Sigma
  • ii. Add 5.0 gram water
  • iii. Stir 10 minutes
  • iv. Add 3.84 grams 3-aminopropyltriethoxysilane (Provided by Gelest)
  • v. Mix 5 minutes
  • v. Coating wire with adhesion promoter
  • vi. Pour adhesion promoter into 100 mL burette (use shaker to mix)
  • vii. Place wire in graduated cylinder solution for 10 minutes
  • viii. Take wire out of solution and place in 125 C oven for 10 minutes

Polyurethane Tungsten Loaded Jacket

• • v. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 5 and stirred at 900 rpm for 15 minutes.
  • w. Basecoat was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • x. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • y. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.0005 grains Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.0000271 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • z. Topcoat was then applied at a set speed for desired film thickness
  • aa. The coating was then cured at ambient or thermally until fully cured
  • w. The final cured product resulted in a highly lubricious coating

Coating Example Composition 7

Materials were then applied to substrates noted below in the following fashion:

Coating Polyurethane Tungsten Loaded Jacket

• • bb. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 7 AND 0.2 Easaqua XM-502 were then added to the formulation and stirred at 900 rpm for 15 minutes Basecoat was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • cc. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • dd. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.02 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.015 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • ee. Topcoat was then applied at a set speed for desired film thickness
  • ff. The coating was then cured at ambient or thermally until fully cured
  • gg. The final cured product resulted in a highly lubricious coating

Coating Metal Wire Substrate with Adhesion Promoter

Preparation of Adhesion Promoter

• • i. 100 mL ETOH (ETOH anhydrous) provided by Sigma
  • ii. Add 5.0 gram water
  • iii. Stir 10 minutes
  • iv. Add 3.84 grams 3-aminopropyltriethoxysilane
  • v. Mix 5 minutes
  • x. Coating wire with adhesion promoter
  • vi. Pour adhesion promoter into 100 mL burette (use shaker to mix)
  • vii. Place wire in graduated cylinder solution for 10 minutes
  • viii. Take wire out of solution and place in 125 C oven for 10 minutes

Polyurethane Tungsten Loaded Jacket

• • hh. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 7 AND 0.2 Easaqua XM-502 were then added to the formulation and stirred at 900 rpm for 15 minutes Basecoat was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • ii. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • jj. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.005 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.01 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • kk. Topcoat was then applied at a set speed for desired film thickness
  • ll. The coating was then cured at ambient or thermally until fully cured
  • y. The final cured product resulted in a highly lubricious and durable coating

Coating Example Composition 9

Materials were then applied to substrates noted below in the following fashion:

Coating Polyurethane tungsten loaded jacket

• • mm. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 9 AND 0.02 Easaqua XM-502 were then added to the formulation and stirred at 900 rpm for 15 minutes Basecoat was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • nn. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • oo. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.002 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n˜40,000 was added to a one ounce bottle then (2) 0.002 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • pp. Topcoat was then applied at a set speed for desired film thickness
  • qq. The coating was then cured at ambient or thermally until fully cured
  • rr. The final cured product resulted in a highly lubricious coating

Coating Metal Wire Substrate with Adhesion Promoter

Preparation of Adhesion Promoter

• • i. 100 mL ETOH (ETOH anhydrous) provided by Sigma
  • ii. Add 5.0 gram water
  • iii. Stir 10 minutes
  • 2. Add 3.84 grams 3-trimethoxysilylpropyl-diethylenetriamine (Provided by Gelest)
  • iv.
  • v. Mix 5 minutes
  • z. Coating wire with adhesion promoter
  • vi. Pour adhesion promoter into 100 mL burette (use shaker to mix)
  • vii. Place wire in graduated cylinder solution for 10 minutes
  • viii. Take wire out of solution and place in 125 C oven for 10 minutes

Polyurethane Tungsten Loaded Jacket

• • ss. An aqueous and or solvent dispersion basecoat was prepared from 8.8 g of composition 9 AND 0.02 Easaqua XM-502 were then added to the formulation and stirred at 900 rpm for 15 minutes Basecoat was applied to the polyurethane jacketed wire, by dip coating, at a set speed for a desired film thickness
  • tt. The basecoat was then cured either at ambient or thermally until no longer-tacky
  • uu. An aqueous dispersion topcoat was prepared with crosslinker in the following order: (1) 0.002 grams Poly(ethylene oxide), 4-arm, amine terminated average M_n ˜10,000 was added to a one ounce bottle then (2) 0.002 grams '956 patent. To this crosslinker 11.576 grams of modified hyaluronan top coat formulated resin was added and crosslinker was stirred at 1800 rpm for 5 minutes
  • vv. Topcoat was then applied at a set speed for desired film thickness
  • ww. The coating was then cured at ambient or thermally until fully cured
  • xx. The final cured product resulted in a highly lubricious and durable coating