ClassID:

99576

C08G69/04 - CPC Classification

Classification description:

Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule; Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids Preparatory processes

Sub-classes:
Recent Application in this class:
#1
20260132254
2026-05-14

CATIONIC POLYMER AND USE FOR BIOMOLECULE DELIVERY

#2
20260049178
2026-02-19

CROSSLINKING AGENTS AND MEDICAL HYDROGELS FORMED THEREFROM

#3
20250352965
2025-11-20

PREPARATION EQUIPMENT AND PROCESS FOR NYLON SALT SOLUTION

#4
20250346715
2025-11-13

PLANT AND EFFICIENT PROCESS FOR PRODUCING POLYLACTIC ACID

#5
20250257037
2025-08-14

METHOD OF COLLECTING e-CAPROLACTAM AND POLYAMIDE 6 OLIGOMER, AND METHOD OF PRODUCING POLYAMIDE 6

#6
20250215154
2025-07-03

High Molecular Weight Polyamides and CoPolyamides with Uniform RV and Low Gel Content

#7
20250154321
2025-05-15

Continuous method for preparing polyamide by polycondensation

#8
20250043082
2025-02-06

CROSSLINKING AGENTS AND MEDICAL HYDROGELS FORMED THEREFROM

#9
20240392070
2024-11-28

FURAN DIACID-BASED POLYAMIDE RESIN, PREPARATION METHOD THEREOF, AND POLYAMIDE MOLDING COMPOSITION

#10
20240317938
2024-09-26

PROCESS FOR PREPARING A POLYAMIDE BY COPOLYMERIZATION OF MULTIPLE COMPONENTS, POLYAMIDE PREPARED THEREBY, AND COMPOSITION COMPRISING THE SAME

#11
20240270906
2024-08-15

POLYAMIDE RESIN AND PREPARATION METHOD THEREFOR, COMPOSITION, AND FIBER PRODUCT

#12
20240261750
2024-08-08

POLYAMIDE-BASED MICROCAPSULES

#13
20240207793
2024-06-27

PREPARATION METHOD OF TI3C2TX MXENE QUANTUM DOT (MQD)-MODIFIED POLYAMIDE (PA) REVERSE-OSMOSIS (RO) MEMBRANE

#14
20240141165
2024-05-02

POLYAMIDE RESIN COMPOSITION AND POLYAMIDE MOLDED ARTICLE

#15
20240001591
2024-01-04

VESSEL WITH INDUCTION HEATING ELEMENTS, AS WELL AS METHOD AND APPARATUS BOTH COMPRISING INDUCTION HEATING ELEMENTS FOR PREPARING A POLYAMIDE POLYMER

#16
20230416463
2023-12-28

FUNCTIONALIZED POLYGLYCINE-POLY(ALKYLENIMINE) COPOLYMERS, THEIR PREPARATION AND USE FOR PREPARING ACTIVE INGREDIENT FORMULATIONS AND SPECIAL-EFFECT SUBSTANCE FORMULATIONS

#17
20230374217
2023-11-23

Yield-optimized method for producing a polyamide powder composition

#18
20230250232
2023-08-10

High Molecular Weight Polyamides and CoPolyamides with Uniform RV and Low Gel Content

#19
20230235120
2023-07-27

PROCESS OF PREPARING A POLY(ANTHRANILIDE), POLY(ANTHRANILIDE) AND ITS USE

#20
20230127075
2023-04-27

Polyamide powder and corresponding preparation method

#21
20220356303
2022-11-10

LIPIDATED POLY(AMINO ACID) NANOSTRUCTURES

#22
20220204692
2022-06-30

Bionylon having triple shape memory properties, and preparation method therefor

#23
20220025115
2022-01-27

Methods for Measuring Consumption of Amino Acid N-Carboxyanhydrides during Manufacture of Glatiramer Acetate

#24
20220002486
2022-01-06

SEMI-AROMATIC POLYAMIDE RESIN AND METHOD FOR PRODUCING SAME

#25
20210340338
2021-11-04

PRODUCTION OF POLYAMIDE POWDERS BY ESTER AMINOLYSIS

#26
20210307317
2021-10-07

POLY-LYSINE DERIVATIVE STABILIZE SOLID-BASED COMPOSITIONS COMPRISING ONE OR MORE SALTS

#27
20210289773
2021-09-23

POLY-LYSINE DERIVATIVE AND ITS USE IN SOLID-BASED COMPOSITIONS

#28
20210253794
2021-08-19

STAIN-RESISTANT BRANCHED POLYAMIDES

#29
20210238347
2021-08-05

CATIONIC POLYMER AND USE FOR BIOMOLECULE DELIVERY

#30
20210206919
2021-07-08

PROCESS FOR PREPARING POLYAMIDE POWDERS BY PRECIPITATION

#31
20210107235
2021-04-15

Method for increasing the difference between the melting temperature and the crystallization temperature of a polyamide powder

#32
20210001283
2021-01-07

Composition for polyamide interfacial polymerization, and method for manufacturing water treatment separation membrane by using same

#33
20200392288
2020-12-17

ANTI-FOGGING PROTEINOIDS AND COMPOSITION COMPRISING SAME

#34
20200339751
2020-10-29

FLAME-RETARDANT POLYMER; METHOD FOR PREPARING IT AND THERMOPLASTIC POLYMER COMPOSITION COMPRISING IT

#35
20200332059
2020-10-22

Composition for interfacial polymerization of polyamide and manufacturing method for water treatment separation membrane using same

#36
20200172671
2020-06-04

SEMI-AROMATIC POLYAMIDE PREPARATION METHOD

#37
20190248967
2019-08-15

Method for producing composite material and composite material

#38
20190202984
2019-07-04

PROCESS OF PREPARING GLATIRAMER ACETATE

#39
20190153156
2019-05-23

FUNCTIONALIZATION OF TRANS-3-HEXENEDIOIC ACID FOR THE PRODUCTION OF HYDROPHOBIC POLYAMIDES AND CHEMICAL RESISTANCE THEREOF

#40
20190131653
2019-05-02

Poly(anhydride)-based polymer electrolytes for high voltage lithium ion batteries

#41
20190002691
2019-01-03

COPOLYMER, PRODUCTION METHOD THEREOF, AND RESIN COMPOSITION

#42
20180362713
2018-12-20

Polymer preparation

#43
20180361681
2018-12-20

Method for increasing the difference between the melting temperature and the crystallization temperature of a polyamide powder

#44
20180297933
2018-10-18

PROCESS FOR PREPARING A DIAMINE/DICARBOXYLIC ACID SALT

#45
20180282259
2018-10-04

Composition made of amino acid or ester with polymer quality and methods for obtaining same

#46
20180280547
2018-10-04

Conjugate of polysarcosine and NIR contrast agent for photoacoustic imaging

#47
20180251709
2018-09-06

Method for producing polyaspartic acid under reflux cooling

#48
20180186731
2018-07-05

Method for producing amides or polyamides by using aromatic carbamates by way of isocyanates as precursors through catalyzed thermal processes and method for producing aromatic carbamate precursors from aromatic amines

#49
20180111101
2018-04-26

Installation and method for treating a plastic melt

#50
20180057634
2018-03-01

Methods of making polypeptides

#51
20170349714
2017-12-07

Production of polyamide powders by ester aminolysis

#52
20170321009
2017-11-09

SEMI-AROMATIC POLYAMIDE PREPARATION METHOD

#53
20170321008
2017-11-09

Method for producing polyaspartic acid by means of a precondensate

#54
20170298180
2017-10-19

Method for preparing glatiramer acetate

#55
20170275236
2017-09-28

Diamine compounds, dinitro compounds and other compounds, and methods of producing thereof and uses related thereof

#56
20170260554
2017-09-14

Method For The Enzyme-Catalyzed Production Of Prepolymers For Producing Plastics

#57
20170166696
2017-06-15

Method of preparing well-defined polypeptides via ROP

#58
20170081470
2017-03-23

Methods of producing compounds from 5-(halomethyl)furfural

#59
20170073470
2017-03-16

SEMI-AROMATIC COPOLYAMIDE AND PROCESS FOR PREPARING SAME

#60
20170037198
2017-02-09

Flame-retardant polyamide 12 moulding composition for railway applications

#61
20170029566
2017-02-02

Method of Producing a Polyamide

#62
20170002143
2017-01-05

Methods for producing nylon 7

#63
20160376220
2016-12-29

Process for preparing a diamine/dicarboxylic acid salt

#64
20160325265
2016-11-10

METHOD FOR PRODUCING POLYAMIDES BY MEANS OF A SPRAY NOZZLE ARRANGEMENT FOR THE COLLISION OF SPRAY JETS

#65
20160280854
2016-09-29

Polyamide synthesis method

#66
20160229956
2016-08-11

Methods for producing polyaspartic acids in the presence of methanesulfonic acid

#67
20160130398
2016-05-12

Device for synthesizing a polymer with reduced formation of deposits in the reaction chamber

#68
20160016894
2016-01-21

Combined synthesis of a nitrile-ester/acid and of a diester/diacid

#69
20150191569
2015-07-09

Method for preparing a polyamide by reactive extrusion, and extruder adapted for the implementation of such a method

#70
20140303341
2014-10-09

Polyamide Resin, Preparation Method Thereof, and Article Comprising Same

#71
20140296472
2014-10-02

PROCESS FOR THE PREPARATION OF POLYAMIDES

#72
20140296377
2014-10-02

Sizing compositions and sized products for thermoplastic composites

#73
20140256903
2014-09-11

Liquid crystal polyester amide resin

#74
20140011972
2014-01-09

CARBOCATALYSTS FOR POLYMERIZATION

#75
20130338333
2013-12-19

Method for producing polyamide resin

#76
20130211039
2013-08-15

Process for the production of PA-410 and PA-410 obtainable by that process

#77
20130203906
2013-08-08

Process for preparing aramid copolymer

#78
20130197148
2013-08-01

Process for forming an aramid copolymer

#79
20130172569
2013-07-04

Base generator

#80
20130172517
2013-07-04

Preparation of low molecular weight polyornithine in high yield

#81
20130172494
2013-07-04

Polyimide precursor composition and preparation method and use thereof

#82
20130165548
2013-06-27

Sizing compositions and sized products for thermoplastic composites

#83
20130131381
2013-05-23

Method for producing polyamide

#84
20130012596
2013-01-10

POLYMERIZATION OF ALKYL(BETA-N-ALKYLAMINOPROPIONATES) FORMING UNIQUE POLYAMIDE COMPOSITIONS

#85
20120329932
2012-12-27

Method for increasing the recyclability of a polyamide used in sintering

#86
20120264907
2012-10-18

Preparation of polyamides

#87
20120130017
2012-05-24

Process for preparing polyamides

#88
20120062228
2012-03-15

Preparation of polyamide block copolymers

#89
20120041100
2012-02-16

Molecular miscible blend solution of aromatic polyamide and non-crystalline polymer, method for preparing the same, aromatic polyamide blend fiber using the same and method for dying the same

#90
20110294968
2011-12-01

Method for producing polymers and reactor for carrying out said method

#91
20110196093
2011-08-11

Method of forming a polyamide

#92
20110195215
2011-08-11

SEMI-AROMATIC COPOLYAMIDE AND PROCESS FOR PREPARING SAME

#93
20110190469
2011-08-04

Acetylenic polyamide

#94
20110172387
2011-07-14

METHOD FOR INCREASING THE DIFFERENCE BETWEEN THE MELTING TEMPERATURE AND THE CRYSTALLIZATION TEMPERATURE OF A POLYAMIDE POWDER

#95
20110082263
2011-04-07

Medical devices comprising a modified polyamide

#96
20110054146
2011-03-03

Preparation of low molecular weight polylysine and polyornithine in high yield

#97
20110052649
2011-03-03

Fine powder of polyamide from renewable materials and method for making such a powder

#98
20100326919
2010-12-30

Monolithic supports and methods for their production

#99
20100311918
2010-12-09

Method for producing polyamides

#100
20100168366
2010-07-01

Synthetic N-linked sialo-glycan-containing polymer and method for producing the same

#101
20100144986
2010-06-10

Continuous production of polyamides

#102
20100121024
2010-05-13

METHOD FOR PRODUCING A COPOLYMER OF AT LEAST ONE CYCLIC MONOMER

#103
20100010934
2010-01-14

UNIVERSAL ADVERTISING DIRECTORY

#104
20090306331
2009-12-10

PROCESS FOR INCREASING THE MOLECULAR WEIGHT OF A POLYAMIDE

#105
20090227761
2009-09-10

Intrinsically gel-free, randomly branched polyamide

#106
20080287641
2008-11-20

MICRON-SIZE POLYMER PARTICLES, PRODUCTION AND USES THEREOF

#107
20080275182
2008-11-06

Method For Producing An Aqueous Polyamide Dispersion

#108
20080274980
2008-11-06

Macromonomers and hydrogel systems using native chemical ligation, and their methods of preparation

#109
20080237118
2008-10-02

Polyamide reverse osmosis composite membrane and preparation method thereof

#110
20080226856
2008-09-18

Polyester resins and polyester containers having reduced frictional properties

#111
20080033143
2008-02-07

Polyamide prepolymer and polyamide, and method for producing them

#112
20070293629
2007-12-20

Preparation of polyamide block copolymers

#113
20070269656
2007-11-22

Production of spherical polyamide particles

#114
20070244272
2007-10-18

Method for Separating Ammonia and Water From Mixtures, Arising During The Production of Polyamides

#115
20070161774
2007-07-12

Continuous method for the production of polyamides

#116
20070161773
2007-07-12

Process for preparing a high molecular polycondensate

#117
20070142537
2007-06-21

Methods for Making Polyester Resins Having Reduced Frictional Properties

#118
20070135613
2007-06-14

Method for the manufacture of a partially crystalline polycondensate

#119
20070112173
2007-05-17

Method and device for the continuous production of polymer

#120
20070055047
2007-03-08

Molecular weight increase and modification of polycondensates

#121
20060270825
2006-11-30

Precipitative process to prepare polyimides

#122
20060235191
2006-10-19

Method for producing polyamides

#123
20060217522
2006-09-28

Method for the production of polyamides

#124
20060205892
2006-09-14

Toughened nylon, the process of preparing it and its use

#125
20060122360
2006-06-08

Method for continuous production of polyamide

#126
20050245680
2005-11-03

Branched polyamides comprising unsaturated ends

#127
20050209436
2005-09-22

Method and device for the continuous production of polyamide 6, 6 and copolyamides thereof

#128
20050170175
2005-08-04

Methods for introducing additives into polyethylene terephthalate

#129
20050159579
2005-07-21

Inherently crosslinkable polyamides

#130
20050154182
2005-07-14

Method for producing polyamides

#131
20050119446
2005-06-02

Production method of polyamide

#132
20050119444
2005-06-02

Solid-state post-condensation process for increasing the molecular weight of a polyamide

#133
20050113512
2005-05-26

Method of making a polymer from a polymer precursor composition

#134
20050079350
2005-04-14

Micron-size polymer particles comprising polyamide compound, production and uses thereof

#135
20050043506
2005-02-24

Polyamide materials based on unsaturated carboxylic acids and amines

#136
20050038153
2005-02-17

Method for the production of polycondensates

#137
20050035486
2005-02-17

Device and method for producing moulded bodies from thermoplastic polymers

#138
20050017398
2005-01-27

Process for the manufacture of homopolyamide-4,6 fibers

#139
16350264
2019-07-09

Iodinated polymers for biological agent defeat