ClassID:

97421

C08B11/20 - CPC Classification

Classification description:

Preparation of cellulose ethers Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps , including purification

Sub-classes:
Recent Application in this class:
#1
20260097389
2026-04-09

Cellulose-based absorbent material and process for its production

#2
20250361329
2025-11-27

METHOD FOR PRODUCING LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE

#3
20250361328
2025-11-27

LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE AND METHOD FOR PRODUCING SAME

#4
20250122312
2025-04-17

Method for Producing Hydrogels

#5
20250109360
2025-04-03

COMPOSITION COMPRISING MODIFIED CARBOXYMETHYL CELLULOSE AS DISPERSION PERFORMANCE ENHANCERS

#6
20250101139
2025-03-27

AMPHIPHILIC POLYSACCHARIDES, POLYSACCHARIDE-BASED HYDROGELS, AND METHODS OF MANUFACTURE

#7
20240327546
2024-10-03

METHOD OF CONTINUOUSLY PRODUCING DEPOLYMERIZED CELLULOSE ETHER

#8
20230312820
2023-10-05

Synthesis of a biocompatible, biodegradable, and tunable shape memory polymer triggered at body temperature

#9
20230301920
2023-09-28

HYDROXYALKYLALKYL CELLULOSE FOR TABLETING AND SOLID PREPARATION COMPRISING THE SAME

#10
20230159664
2023-05-25

MECHANICAL TREATMENT OF POLYSACCHARIDE WITH HYDROPHOBIC ALCOHOL

#11
20230151120
2023-05-18

Cellulose ethers with delayed solubility and having a reduced glyoxal content

#12
20230002511
2023-01-05

High-viscosity lithium carboxymethyl cellulose and preparation method therefor and application thereof

#13
20220298265
2022-09-22

Amphiphilic polysaccharides, polysaccharide-based hydrogels, and methods of manufacture

#14
20220127380
2022-04-28

Method for producing depolymerized cellulose ether

#15
20220127379
2022-04-28

Method for producing depolymerized cellulose ether

#16
20220112311
2022-04-14

PROCESS FOR PRODUCING A CROSSLINKED CELLULOSE ETHER

#17
20220112310
2022-04-14

Silicon glycan and method of preparing same

#18
20220073651
2022-03-10

METHOD FOR PRODUCING HYDROGELS

#19
20220056157
2022-02-24

PROCESS FOR FRACTIONATING AN ESTERIFIED CELLULOSE ETHER

#20
20210355242
2021-11-18

OXIDATIVE DEGRADATION OF CELLULOSE ETHERS

#21
20210353665
2021-11-18

Polymer Hydrogels and Methods of Preparation Thereof

#22
20210236582
2021-08-05

ANTIMICROBIAL COMPOSITION BASED ON POLYPHENOLS AND POLYSACCHARIDES, METHOD FOR PREPARING THEREOF AND USE OF THE SAME

#23
20210214510
2021-07-15

NANOFIBRILLAR CELLULOSE HYDROGEL

#24
20210214465
2021-07-15

Method for producing carboxymethylated cellulose and carboxymethylated cellulose nanofibers

#25
20210147579
2021-05-20

WATER-SOLUBLE CELLULOSE ETHER AND METHOD FOR PRODUCING THE SAME

#26
20210130499
2021-05-06

METHOD FOR PRODUCING MODIFIED CELLULOSE FIBER

#27
20210061926
2021-03-04

Method for producing sieved low-substituted hydroxypropyl cellulose

#28
20210047440
2021-02-18

Amphiphilic polysaccharides, polysaccharide-based hydrogels, and methods of manufacture

#29
20210002386
2021-01-07

Oxidative degradation of cellulose ethers

#30
20200369787
2020-11-26

Method for manufacturing carboxymethylated cellulose nanofiber

#31
20200362132
2020-11-19

Porous water-soluble nonionic cellulose ether having excellent solubility and method for producing the same

#32
20200362060
2020-11-19

Water-soluble cellulose ether and method for producing the same

#33
20200332025
2020-10-22

Method for producing hydrogels

#34
20200283655
2020-09-10

COATING FORMULATION USING LOW-SUBSTITUTED CELLULOSE ETHER AND ITS PREPARATION

#35
20200222447
2020-07-16

BIO-INSPIRED POLYMERS FOR USE AS SYNTHETIC MUCINS

#36
20200071426
2020-03-05

METHOD FOR STORING CHEMICALLY MODIFIED CELLULOSE FIBERS AND METHOD FOR PRODUCING CHEMICALLY MODIFIED CELLULOSE NANOFIBERS

#37
20200046755
2020-02-13

POLYMER HYDROGELS AND METHODS OF PREPARATION THEREOF

#38
20190263938
2019-08-29

METHOD FOR PRODUCING WATER-SOLUBLE HYDROXYETHYL CELLULOSE

#39
20190184020
2019-06-20

NOVEL ESTERIFIED CELLULOSE ETHERS OF HIGH MOLECULAR WEIGHT AND HOMOGENEITY

#40
20190117682
2019-04-25

BIO-INSPIRED POLYMERS FOR USE AS SYNTHETIC MUCINS

#41
20190055323
2019-02-21

Method for producing carboxymethyl cellulose or salt thereof, and binding agent for electrode

#42
20190023972
2019-01-24

SHALE SWELLING INHIBITORS

#43
20190010252
2019-01-10

Water-soluble cellulose ether and method for producing the same

#44
20180333361
2018-11-22

Alkyl cellulose for use in tableting and solid preparation comprising same

#45
20180319899
2018-11-08

Cellulose ethers with temporary cross-links, a process to make them, and their use

#46
20180134812
2018-05-17

Cellulose ether powders

#47
20180105607
2018-04-19

PROCESS OF PREPARING A HIGH MOLECULAR WEIGHT ESTERIFIED CELLULOSE ETHER

#48
20180100029
2018-04-12

Low-substituted hydroxypropyl cellulose, production method thereof, and solid preparation

#49
20180098941
2018-04-12

Hydroxyalkyl alkyl cellulose, method for producing the same, and solid preparation

#50
20180072820
2018-03-15

Gelling esterified cellulose ethers

#51
20180072819
2018-03-15

Water-soluble esterified cellulose ethers having a low degree of neutralization

#52
20180030158
2018-02-01

PROCESS FOR PREPARING AN ESTERIFIED CELLULOSE ETHER IN THE PRESENCE OF AN ALIPHATIC CARBOXYLIC ACID

#53
20180030157
2018-02-01

PROCESS FOR FRACTIONATING AN ESTERIFIED CELLULOSE ETHER

#54
20170369596
2017-12-28

Size reduction of ethylcellulose polymer particles

#55
20170355782
2017-12-14

Process for producing a water-soluble cellulose derivative having a reduced content of water-insoluble particles

#56
20170283513
2017-10-05

Method for producing water-soluble nonionic cellulose ether powder having high bulk density

#57
20170273910
2017-09-28

Alkyl cellulose for use in tableting and solid preparation comprising same

#58
20170145219
2017-05-25

Metal oxide particles with uniform multi-layer polymer coatings

#59
20170114203
2017-04-27

Porous water-soluble nonionic cellulose ether having excellent solubility and method for producing the same

#60
20160376379
2016-12-29

Polysaccharide derivatives and cross-metathesis processes for preparing them

#61
20160361350
2016-12-15

Polymer hydrogels and methods of preparation thereof

#62
20160347866
2016-12-01

Esterified cellulose ethers of high molecular weight and homogeneity

#63
20160319042
2016-11-03

Method for producing hydrogels

#64
20160311932
2016-10-27

Method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains having controlled grain size distribution, and HPMCAS powder

#65
20160303280
2016-10-20

Carboxymethylcellulose polyethylene glycol compositions for medical uses

#66
20160303023
2016-10-20

Hair fixatives including cellulose ether based polyglucose polymers

#67
20160251451
2016-09-01

Dissolution and processing of cellulose

#68
20160222133
2016-08-04

Process for recovering an esterified cellulose ether from a reaction product mixture

#69
20160215069
2016-07-28

Reversibly crosslinked cellulose ethers and process for the production thereof by selective oxidation of vicinal OH groups

#70
20160208087
2016-07-21

Surface-modified cellulose nanofibres, bio composite resin composition and method for producing the same

#71
20160159931
2016-06-09

Hydrogel forming material from byproduct pulp fines

#72
20160122441
2016-05-05

Cationic group-containing cellulose ether

#73
20160113875
2016-04-28

Alkyl cellulose for use in tableting and solid preparation comprising same

#74
20160095928
2016-04-07

Composition for hot melt extrusion and method for producing hot melt extrudate by using same

#75
20160038634
2016-02-11

Carboxymethylcellulose polyethylene glycol compositions for medical uses

#76
20150376299
2015-12-31

Esterified cellulose ethers of very low viscosity

#77
20150368366
2015-12-24

Esterified cellulose ethers of very high molecular weight

#78
20150344767
2015-12-03

Shale swelling inhibitors

#79
20150344461
2015-12-03

Hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds

#80
20150299338
2015-10-22

Method for producing cellulose ether

#81
20150293082
2015-10-15

Cellulose derivative fine particle, dispersion liquid thereof, dispersion body thereof and diagnostic reagent

#82
20150218291
2015-08-06

Process of preparing an esterified cellulose ether in the presence of an alkali metal carboxylate and an aliphatic carboxylic acid

#83
20150210779
2015-07-30

Method of manufacturing ultra-low viscosity hydroxyalkyl cellulose through partial neutralization method

#84
20150203597
2015-07-23

Partially cross-linked esterified cellulose ethers

#85
20150158995
2015-06-11

NFC stabilized foam

#86
20150144032
2015-05-28

Alkyl hydroxyalkyl cellulose ethers, methods of making, and use in cements and mortars

#87
20150065548
2015-03-05

Composition comprising an organic diluent and a cellulose ether

#88
20150064128
2015-03-05

Cationized glycerolated cellulose

#89
20150045550
2015-02-12

Method for dehydrating hydrous low-substituted hydroxypropyl cellulose and method for producing low-substituted hydroxypropyl cellulose by using same

#90
20150040798
2015-02-12

Method for producing water-soluble cellulose ether having low degree of polymerization and method for producing film coating composition comprising same

#91
20150031873
2015-01-29

Process of preparing an ester of a cellulose ether

#92
20150005486
2015-01-01

Method for producing water-soluble nonionic cellulose ether excellent in storage stability

#93
20140371443
2014-12-18

Multifunctional materials and composites

#94
20140357681
2014-12-04

Composition for hot-melt extrusion and method for producing hot-melt extrusion product using same

#95
20140343272
2014-11-20

Preparation method of acetylated cellulose ether, and acetylated cellulose ether prepared thereby

#96
20140309315
2014-10-16

Carboxymethylcellulose polyethylene glycol compositions for medical uses

#97
20140228514
2014-08-14

Hydroxyethyl cellulose grafted acrylic latex

#98
20140194618
2014-07-10

Method for preparing cellulose ether having low degree of polymerization and cellulose ether prepared thereby

#99
20140179049
2014-06-26

SILICON/GERMANIUM-BASED NANOPARTICLE PASTES WITH ULTRA LOW METAL CONTAMINATION

#100
20140171441
2014-06-19

Pharmaceutical compositions with enhanced performance

#101
20140148591
2014-05-29

Method of removing alkylene halogenohydrin from cellulose ether

#102
20140134317
2014-05-15

Food composition comprising a cellulose ether

#103
20140130822
2014-05-15

Cleaning agent composition

#104
20140073777
2014-03-13

Method for producing alkali cellulose

#105
20140018531
2014-01-16

Process for reducing the amount of water-insoluble fibers in a water-soluble cellulose derivative

#106
20140017319
2014-01-16

Process for producing cellulose derivatives of high bulk density and good flowability

#107
20140013999
2014-01-16

Process for producing cellulose derivatives of high bulk density, good flowability and improved dispersibility in cold water

#108
20130345341
2013-12-26

Modified cellulose nanofibers, production method thereof, and resin composition using same

#109
20130295033
2013-11-07

Hair cosmetic

#110
20130172290
2013-07-04

Treatment of polysaccarides with dialdehydes

#111
20130130949
2013-05-23

Wellbore servicing fluid comprising a cellulose ether

#112
20130118743
2013-05-16

Nonionic hydrophobically substituted cellulose ethers

#113
20130089737
2013-04-11

Method for producing hydrogels

#114
20130040911
2013-02-14

ADHESION-PREVENTING MATERIAL

#115
20130034592
2013-02-07

HYDROGEL

#116
20130005957
2013-01-03

Method for producing cationized cellulose and method for producing cationized hydroxyalkyl cellulose

#117
20130005945
2013-01-03

Forming porous scaffold from cellulose derivatives

#118
20120261321
2012-10-18

SEPARATION MEMBRANE, METHOD FOR MANUFACTURING THE SAME, AND FORWARD OSMOSIS DEVICE INCLUDING THE SAME

#119
20120238524
2012-09-20

Water-soluble polysaccharide ethers and their use

#120
20120214985
2012-08-23

Production method for cationic hydroxypropyl cellulose

#121
20120129954
2012-05-24

CARBOXYMETHYLCELLULOSE POLYETHYLENE GLYCOL COMPOSITIONS FOR MEDICAL USES

#122
20120065390
2012-03-15

Method for producing low-substituted hydroxypropylcellulose

#123
20110281979
2011-11-17

Storing and distributing a feeder product

#124
20110251265
2011-10-13

POLYAMINE-CONTAINING POLYMERS AND METHODS OF SYNTHESIS AND USE

#125
20110201117
2011-08-18

FORMING POROUS SCAFFOLD FROM CELLULOSE DERIVATIVES

#126
20110183090
2011-07-28

Cellulose derivative, process of preparing cellulose derivative, resin composition, molded article, method of making molded article, and housing for electronic equipment

#127
20110159272
2011-06-30

Forming porous scaffold from cellulose derivatives

#128
20110113989
2011-05-19

METHYLHYDROXYPROPYLCELLULOSE (MHCP) FOR MINERAL-BOUND BUILDING MATERIAL SYSTEMS

#129
20110098463
2011-04-28

CELLULOSE DERIVATIVE AND METHOD FOR PRODUCING THE SAME, CELLULOSE RESIN COMPOSITION, MOLDED MATTER AND METHOD FOR MAKING THE SAME, AND ELECTRICAL AND ELECTRONIC EQUIPMENT HOUSING

#130
20110098455
2011-04-28

Crosslinked polysaccharide sponge

#131
20110046365
2011-02-24

CELLULOSE DERIVATIVES, METHOD OF PRODUCING THE SAME AND USE THEREOF

#132
20110020954
2011-01-27

Cellulose derivative fine particle, dispersion liquid thereof, dispersion body thereof and diagnostic reagent

#133
20100307379
2010-12-09

Method for preparing very low viscosity cellulose ether and product

#134
20100292460
2010-11-18

WATER-DISPERSIBLE POLYSACCARIDE DERIVATIVES OF REDUCED GLYOXAL CONTENT, AND A PROCESS FOR DECREASING THE GLYOXAL CONTENT IN GLYOXAL-CROSSLINKED POLYSACCHARIDE DERIVATIVES

#135
20100279982
2010-11-04

Cellulose derivative

#136
20100234233
2010-09-16

Polymer hydrogels and methods of preparation thereof

#137
20100144669
2010-06-10

Dissolution and processing of cellulose

#138
20100099862
2010-04-22

PROCESS FOR WASHING POLYSACCHARIDE DERIVATIVES

#139
20100063269
2010-03-11

Process for reducing the average molecular weight of cellulose ethers

#140
20090247484
2009-10-01

Non-absorbable non-digestible polymer compounds

#141
20090227024
2009-09-10

Modified polysaccharide for cell culture and release

#142
20090214604
2009-08-27

Method of obtaining hydrogels of cyclodextrins with glycidyl ethers, compositions thus obtained and applications thereof

#143
20090188639
2009-07-30

Use of water-soluble polymer complexes in aqueous systems

#144
20090076168
2009-03-19

AMINE-BASED AND IMINE-BASED POLYMERS, USES AND PREPARATION THEREOF

#145
20080306253
2008-12-11

MATRIX MADE OF A POLYSACCHARIDE MODIFIED UNDER AN ELECTRON BEAM WITH A FUNCTIONAL ORGANOSILICON COMPOUND

#146
20080227944
2008-09-18

Biodegradable, Super Absorbent Polymer Hydrogels and a Method For Their Preparation

#147
20080207893
2008-08-28

Process for grinding cellulose ether

#148
20080103228
2008-05-01

Carboxymethylcellulose polyethylene glycol compositions for medical uses

#149
20080102117
2008-05-01

BASE MATERIAL FOR DRY DIRECT TABLETING COMPRISING LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE

#150
20080071050
2008-03-20

Crosslinked polysaccharide sponge

#151
20080071001
2008-03-20

Crosslinked polysaccharide sponge

#152
20080064763
2008-03-13

Pharmaceutical compositions with enhanced performance

#153
20080033162
2008-02-07

Water-Soluble Cellulose Derivative Comprising A Ligand

#154
20080031854
2008-02-07

THIOLATED MACROMOLECULES AND METHODS OF MAKING AND USING THEREOF

#155
20080014250
2008-01-17

Bifunctionalized polysaccharides

#156
20070297280
2007-12-27

Double-cone mixer with baffles

#157
20070253923
2007-11-01

Personal care composition

#158
20070249825
2007-10-25

Decolorized raw cotton linters and preparation of ether derivatives therefrom

#159
20070217974
2007-09-20

Phosphoric ester of cellulose derivative and metal adsorbent comprising the same

#160
20070210014
2007-09-13

Process for preparing methylhydroxyalkylcellulose having a small number of coloured particles

#161
20070179292
2007-08-02

Production of low molecular weight ethylcellulose

#162
20070148124
2007-06-28

Cellulose and acrylic based polymers and the use thereof for the treatment of infectious diseases

#163
20070059267
2007-03-15

Associative water-soluble cellulose ethers

#164
20070055057
2007-03-08

Water-dispersible polysaccharide derivatives of reduced glyoxal content, and a process for decreasing the glyoxal content in glyoxal-crosslinked polysaccharide derivatives

#165
20070031362
2007-02-08

Cellulose ethers

#166
20070009464
2007-01-11

Process for the preparation of hydroxy polymer esters and their use

#167
20060281154
2006-12-14

Enzymatic depolymerisation of carboxymethylcellulose in hydroalcoholic solutions

#168
20060235211
2006-10-19

Lactones of carboxylic acid polysaccharides and methods for forming conjugates thereof

#169
20060205935
2006-09-14

Process for shaping cellulose ethers

#170
20060188465
2006-08-24

Cross-linked polymer of carbohydrate, notably based on polysaccharides, and/or on oligosaccharides and/or on polyols

#171
20060182703
2006-08-17

Blocky hydroxyethylcellulose, derivatives thereof, process of making and uses thereof

#172
20060142483
2006-06-29

Method of crosslinking a carboxylated polymer using a triazine crosslinking activator

#173
20060142482
2006-06-29

Method of crosslinking a mixture of carboxylated polymers using a triazine crosslinking activator

#174
20060142481
2006-06-29

Method for making a mixed polymer network

#175
20060142476
2006-06-29

Crosslinked carboxylated polymer

#176
20060142434
2006-06-29

Crosslinked mixed carboxylated polymer network

#177
20060002879
2006-01-05

Methods of treating keratin based substrates

#178
20050281882
2005-12-22

Matrix made of a polysaccharide modified under an electron beam with a functional organosilicon compound

#179
20050261490
2005-11-24

Method for producing temporarily cross-linked cellulose ethers

#180
20050250904
2005-11-10

Organopolysiloxane-modified polysaccharide and process for producing the same

#181
20050244365
2005-11-03

Methods, compositions, formulations, and uses of cellulose and acrylic-based polymers

#182
20050223587
2005-10-13

Method of drying biodegradable polymers

#183
20050222405
2005-10-06

Polysaccharide containing phosphorylcholine group and process for producing the same

#184
20050209449
2005-09-22

Depolymerization of water soluble polysaccharides

#185
20050183837
2005-08-25

Use of water-soluble polymer complexes in aqueous systems

#186
20050182190
2005-08-18

Mixtures of alkylated and non-alkylated cellulose ethers and use thereof

#187
20050148767
2005-07-07

Self-cross-linked alkyl cellulose

#188
20050143572
2005-06-30

Modified cellulose ethers, obtainable by reaction of cellulose ethers carrying free hydroxy groups with di- and/or polycarboxylic acids and the use of catalysts, and method for producing the same

#189
20050139130
2005-06-30

Cementitious composition

#190
20050112077
2005-05-26

Crosslinked polysaccharides and methods of making and using crosslinked polysaccharides

#191
20050074495
2005-04-07

Compositions of polyacids and methods for their use in reducing adhesions

#192
20050008698
2005-01-13

Base material for dry direct tableting comprising low-substituted hydroxypropyl cellulose