ClassID:

126922

D21H17/56 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution; Macromolecular organic compounds; Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen Polyamines; Polyimines; Polyester-imides

Recent Application in this class:
#1
20250163645
2025-05-22

A FLUOROCHEMICAL-FREE GREASE-BARRIER PAPER

#2
20250043513
2025-02-06

A method for improving grease and oil resistance of a fiber based article

#3
20240344271
2024-10-17

USE OF MODIFIED LIGNIN AS A WET END STRENGTH ADDITIVE

#4
20240301627
2024-09-12

TREATED ARTICLE, METHODS OF MAKING THE TREATED ARTICLE, AND DISPERSION FOR USE IN MAKING THE TREATED ARTICLE

#5
20240229361
2024-07-11

A method, a paperboard product and use of a foam coater and a subsequent high-consistency metering size press

#6
20240158987
2024-05-16

Transfer material for sublimation printing based on paper as the carrier, with an ink blocking function

#7
20240133122
2024-04-25

A method, a paperboard product and use of a foam coater and a subsequent high-consistency metering size press

#8
20240003089
2024-01-04

Treated article, methods of making the treated article, and dispersion for use in making the treated article

#9
20230407572
2023-12-21

IMPREGNATED CORE PAPER FOR DECORATIVE LAMINATE

#10
20230243103
2023-08-03

NOVEL WATER-SOLUBLE POLYMER COMPLEXES IN THE FORM OF AN INVERSE EMULSION AND USES THEREOF

#11
20230160147
2023-05-25

FOAM-ASSISTED APPLICATION OF UNCOOKED STARCH AND DRY STRENGTH AGENTS TO PAPER PRODUCTS

#12
20220204889
2022-06-30

NON-CATIONIC SOFTENERS AND METHODS OF USE

#13
20220178078
2022-06-09

Treated article, methods of making the treated article, and dispersion for use in making the treated article

#14
20220136174
2022-05-05

Methods and apparatus for manufacturing fiber-based produce containers

#15
20220090319
2022-03-24

Process for producing paper or board and a product thereof

#16
20220049429
2022-02-17

Fiber-based food containers

#17
20210198848
2021-07-01

Quaternary cationic surfactants and polymers for use as release and coating modifying agents in creping and tissue papers

#18
20210039856
2021-02-11

Methods and apparatus for manufacturing high-strength fiber-based beverage holders

#19
20210002827
2021-01-07

Method for manufacture of paper or board and paper or board obtained by the method

#20
20200256016
2020-08-13

Methods and apparatus for manufacturing fiber-based produce containers

#21
20200115852
2020-04-16

Polyimide fiber sheet

#22
20200087859
2020-03-19

Strength additive system and method for manufacturing a web comprising cellulosic fibres

#23
20200056335
2020-02-20

Methods and apparatus for manufacturing fiber-based beverage holders

#24
20200056325
2020-02-20

Inorganic particle composite fiber, method for manufacturing same, and molded article

#25
20200032456
2020-01-30

Fibrous structures comprising acidic cellulosic fibers and methods of manufacturing the same

#26
20200024806
2020-01-23

Methods and apparatus for manufacturing fiber-based meat containers

#27
20190226148
2019-07-25

Method for manufacturing paper, device for manufacturing additive for manufacturing paper, and device for manufacturing paper

#28
20190077667
2019-03-14

High-strength network structured nano-carrier material and preparation method and application thereof

#29
20190055697
2019-02-21

Sheet

#30
20190031802
2019-01-31

Hydrophobic vinylamine-containing polymer compositions and their use in papermaking applications

#31
20190003123
2019-01-03

Cationic polyetheramine dispersants for preparing papermaking stock

#32
20180358595
2018-12-13

SEPARATOR FOR ALKALINE BATTERIES, AND ALKALINE BATTERY

#33
20180320316
2018-11-08

Dry strength agent composition and method for enhancing the dry strength of paper

#34
20180112359
2018-04-26

Blends of polymers as wet strengthening agents for paper

#35
20180080175
2018-03-22

Increased drainage performance in papermaking systems using microfibrillated cellulose

#36
20180051416
2018-02-22

Method for producing paper

#37
20180029767
2018-02-01

Method for manufacturing fiber-based meat containers

#38
20180029765
2018-02-01

Methods for manufacturing fiber-based beverage lids

#39
20180029764
2018-02-01

Methods and apparatus for manufacturing fiber-based meat containers

#40
20180023254
2018-01-25

High efficiency wet strength resins from new cross-linkers

#41
20170369695
2017-12-28

Treatment of calcium carbonate containing materials for increased filler load in paper

#42
20170321378
2017-11-09

Pressboard

#43
20170314204
2017-11-02

Method for producing paper

#44
20170314203
2017-11-02

Method and composition for detackifying organic contaminants in the process of pulping and papermaking

#45
20170226696
2017-08-10

Powdery water-soluble cationic polymer composition

#46
20170218571
2017-08-03

Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer of copolymer

#47
20170204565
2017-07-20

CREPING ADHESIVES AND METHODS FOR MAKING AND USING SAME

#48
20170183821
2017-06-29

Method for producing corrugated cardboard

#49
20170100853
2017-04-13

Process for treating wood

#50
20170089011
2017-03-30

Compositions and methods of making paper products

#51
20170073471
2017-03-16

Condensation polymers for antimicrobial applications

#52
20170058455
2017-03-02

Lightweight digital printing medium

#53
20170037575
2017-02-09

Process for manufacturing paper using a base copolymer that has reacted with an aldehyde as a dry strength, retention, drainage and runnability aid

#54
20170002518
2017-01-05

Papermaking agent composition and method for treating fibre stock

#55
20160319485
2016-11-03

Filler aggregate composition and its production

#56
20160281300
2016-09-29

Compositions and methods of making paper products

#57
20160265163
2016-09-15

Blends of polymers as wet strengthening agents for paper

#58
20160160443
2016-06-09

Web of cellulosic fibers comprising an active agent and method for manufacturing a web of cellulosic fibers comprising an active agent

#59
20160153146
2016-06-02

Paper and methods of making paper

#60
20160047090
2016-02-18

Process to improve performance of wet-strength resins through base activation

#61
20160039985
2016-02-11

Cellulose material having impregnation and use of the cellulose material

#62
20160010282
2016-01-14

Aqueous emulsion of a sizing agent

#63
20150345081
2015-12-03

Process for the manufacture of paper and paperboard

#64
20150299958
2015-10-22

High strength paper

#65
20150298481
2015-10-22

Crease-resistant security film

#66
20150275436
2015-10-01

LAMINATES PREPARED FROM DECOR PAPER COMPRISING SELF-DISPERSING PIGMENTS

#67
20150267352
2015-09-24

Decor paper comprising self-dispersing pigments

#68
20150267349
2015-09-24

Method of Increasing Enzyme Stability and Activity for Pulp and Paper Production

#69
20150259859
2015-09-17

High efficiency wet strength resins from new cross-linkers

#70
20150259858
2015-09-17

High efficiency wet strength resins from new cross-linkers

#71
20150211183
2015-07-30

Paper products containing a polymeric wet strengthening agent

#72
20150211182
2015-07-30

Blends of polymers as wet strengthening agents for paper

#73
20150184344
2015-07-02

Mixtures of polyvinylamines and of liquid compositions of cationic amylaceous materials as agents for improving the dry strength of paper and cardboard

#74
20150176209
2015-06-25

PROCESS FOR THE PRODUCTION OF PAPER AND BOARD

#75
20150159328
2015-06-11

METHOD AND COMPOSITION FOR DETACKIFYING ORGANIC CONTAMINANTS IN THE PROCESS OF PULPING AND PAPERMAKING

#76
20150136348
2015-05-21

Process for manufacturing paper using a base copolymer that has reacted with an aldehyde as a dry strength, retention, drainage and runnability aid

#77
20150129148
2015-05-14

Surfactant based brown stock wash aid treatment for papermachine drainage and dry strength agents

#78
20150114582
2015-04-30

Sheets and fibrids comprising a mixture of poly(m-phenylene isophthalamide) and copolymer made from 5(6)-amino-2-(p-aminophenyl)benzimidazole

#79
20150096698
2015-04-09

Treatment of calcium carbonate containing materials for increased filler load in paper

#80
20150068697
2015-03-12

Method for dissolving cationic starch, papermaking agent and its use

#81
20150027651
2015-01-29

Manufacture of cellulosic pulp sheets

#82
20150027650
2015-01-29

Process for the manufacture of paper and paperboard

#83
20150020988
2015-01-22

Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer or copolymer

#84
20150000852
2015-01-01

Dispersions made from treated inorganic particles for making decor paper having improved optical performance

#85
20140367059
2014-12-18

Process for the manufacture of paper and paperboard

#86
20140338852
2014-11-20

Laminate paper treated with inorganic pigments having improved dispersability

#87
20140272340
2014-09-18

Cover layer with reduced tensile properties for use of wear-resistant laminate

#88
20140272213
2014-09-18

Packaging board, its use and products made thereof

#89
20140158316
2014-06-12

Compositions used in paper and methods of making paper

#90
20140124154
2014-05-08

Process for the production of paper and board

#91
20140020858
2014-01-23

High efficiency wet strength resins from new cross-linkers

#92
20130303725
2013-11-14

Quaternized polyethylenimines with a high quaternization degree

#93
20130160959
2013-06-27

Compositions and methods of making paper products

#94
20130118699
2013-05-16

Vinylamine containing copolymer microparticles as additives in papermaking

#95
20130081771
2013-04-04

Paper and methods of making paper

#96
20130037230
2013-02-14

Polymeric compositions and their production and uses

#97
20120291971
2012-11-22

Retention and drainage in the manufacture of paper

#98
20120241115
2012-09-27

Polyimide short fibers and heat-resistant paper comprising same

#99
20120225932
2012-09-06

Process for the production of polyamines

#100
20120152476
2012-06-21

High strength paper

#101
20120073773
2012-03-29

Method for increasing the dry strength of paper, paperboard, and cardboard

#102
20120058536
2012-03-08

Polymer made of a primary amine functionalized polymer and a hemicellulose

#103
20120043040
2012-02-23

Method of treating paper forming wire surface

#104
20110303376
2011-12-15

IMIDIZED AND AMIDIZED ROSIN COMPOSITIONS FOR PAPER SIZES AND OTHER APPLICATIONS

#105
20110277949
2011-11-17

Compositions containing expandable microspheres and an ionic compound, as well as methods of making and using the same

#106
20110263814
2011-10-27

Membrane separation process for removing residuals from polyamine-epihalohydrin resins

#107
20110253333
2011-10-20

Paper making processes and system using enzyme and cationic coagulant combination

#108
20110247775
2011-10-13

Stable and aqueous compositions of polyvinylamines with cationic starch, and utility for papermaking

#109
20110247772
2011-10-13

FIBROUS PRODUCTS AND METHODS OF MANUFACTURE

#110
20110224374
2011-09-15

Glyoxalated N-vinylamine

#111
20110168344
2011-07-14

Method for manufacturing paper, cardboard and paperboard using endo-beta-1,4-glucanases as dewatering means

#112
20110159208
2011-06-30

IMPROVEMENTS IN THE MANUFACTURE OF B-STAGE RESIN IMPREGNATED PAPERS OR NON-WOVENS

#113
20110155339
2011-06-30

Process for Enhancing Dry Strength of Paper by Treatment with Vinylamine-Containing Polymers and Acrylamide-Containing Polymers

#114
20110132559
2011-06-09

Process for increasing the dry strength of paper, board and cardboard

#115
20110114904
2011-05-19

Composition for treatment of fiber materials by exhaust method in particular

#116
20110114275
2011-05-19

RESIN PRECURSOR

#117
20110079365
2011-04-07

Production of paper

#118
20110031156
2011-02-10

Solvent-resistant liquid packaging board, its manufacturing method and use, and a drinking cup made of the same

#119
20100310883
2010-12-09

Cationic wet strength resin modified pigments in water-based latex coating applications

#120
20100305362
2010-12-02

Aminoalkyl vinyl ethers comprising ethylenimine units, processes for their preparation and their use

#121
20100304166
2010-12-02

Fiber products

#122
20100304116
2010-12-02

Grease resistant coatings, articles and methods

#123
20100303981
2010-12-02

Grease resistant coatings, articles and methods

#124
20100282424
2010-11-11

Method for the production of paper, cardboard and card

#125
20100273923
2010-10-28

METHOD OF MANUFACTURING COMB POLYMERS BY ADDING AN ANTIOXIDANT, POLYMERS OBTAINED, AND APPLICATIONS THEREOF

#126
20100186917
2010-07-29

Filler composition

#127
20100170646
2010-07-08

Method of increasing enzyme stability and activity for pulp and paper production

#128
20100032115
2010-02-11

Compositions containing expandable microspheres and an ionic compound as well as methods of making and using the same

#129
20100032114
2010-02-11

Compositions containing expandable microspheres and an ionic compound as well as methods of making and using the same

#130
20090314446
2009-12-24

Low amidine content polyvinylamine, compositions containing same and methods

#131
20090283230
2009-11-19

ADDITIVE, USE OF SAID ADDITIVE IN PAPER OR BOARD PRODUCTION, A METHOD OF IMPROVING PAPER OR BOARD MANUFACTURING AND A METHOD OF IMPROVING PAPER OR BOARD PRODUCT

#132
20090272506
2009-11-05

Papers with a high filler material content and high dry strength

#133
20090260769
2009-10-22

METHOD FOR TREATING CELLULOSE-CONTAINING FIBERS OR PLANAR STRUCTURES CONTAINING CELLULOSE-CONTAINING FIBERS

#134
20090218059
2009-09-03

Salt-sensitive cationic polymeric binders for nonwoven webs and method of making the same

#135
20090211719
2009-08-27

Retention and drainage in the manufacture of paper

#136
20090165978
2009-07-02

Blends of glyoxalated polyacrylamides and paper strengthening agents

#137
20090165976
2009-07-02

EXPANSION AGENTS FOR PAPER-BASED MATERIALS

#138
20090155526
2009-06-18

Honeycomb having a high compression strength and articles made from same

#139
20090145566
2009-06-11

Method for producing high dry strength paper, paperboard or cardboard

#140
20090145565
2009-06-11

METHOD FOR THE PRODUCTION OF CREPE PAPER

#141
20090133846
2009-05-28

Creping adhesives comprising blends of high and low molecular weight resins

#142
20090126890
2009-05-21

Glyoxalated N-vinylamine

#143
20090098303
2009-04-16

Coatings to increase water and grease resistance of porous materials and materials having such protection

#144
20090043051
2009-02-12

Modified vinylamine-containing polymers as additives in papermaking

#145
20090008051
2009-01-08

Wet strength enhancers for paper

#146
20090008050
2009-01-08

METHODS FOR PRODUCING WET-SPUN NON-WOVEN FABRICS

#147
20080302497
2008-12-11

Paper Product with Increased Relative Wet Tensile Strength and Softness, Method for Production and Use Thereof

#148
20080277085
2008-11-13

Additive, Use of Said Additive in Paper or Board Production, a Method of Improving Paper or Board Manufacturing and a Method of Improving Paper or Board Product

#149
20080274409
2008-11-06

Separator for battery and alkaline battery

#150
20080271865
2008-11-06

PIGMENTS FOR COLORED PAPER

#151
20080264590
2008-10-30

COMPOSITION FOR INCREASING CELLULOSIC PRODUCT STRENGTH AND METHOD OF INCREASING CELLULOSIC PRODUCT STRENGTH

#152
20080213394
2008-09-04

Polymer-Based Antimicrobial Agents, Methods of Making Said Agents, and Products Incorporating Said Agents

#153
20080196852
2008-08-21

Method for the production of paper, cardboard and card

#154
20080066881
2008-03-20

Membrane separation process for removing residuals polyamine-epihalohydrin resins

#155
20080009596
2008-01-10

Michael addition adducts as additives for paper and papermaking

#156
20080000601
2008-01-03

Method for the production of paper, paperboard and cardboard

#157
20070261807
2007-11-15

Use of polyvinylamine to improve oil and water sizing in cellulosic products

#158
20070221348
2007-09-27

Aqueous compositions containing perfluoropolyether di-carboxylic salts for the oleo-repellent paper treatment

#159
20070137821
2007-06-21

Reduced byproduct polyamine-epihalohydrin resins

#160
20070131369
2007-06-14

Papermaking process

#161
20070107864
2007-05-17

Filler-containing paper and a method for the production of filler-containing paper

#162
20070082139
2007-04-12

Process for the flame-retardant treatment of fiber products

#163
20070056706
2007-03-15

Use of non-thermosetting polyamidoamines as dry-strength resins

#164
20070044929
2007-03-01

Compositions containing expandable microspheres and an ionic compound, as well as methods of making and using the same

#165
20070004887
2007-01-04

Method for preparing curable composition

#166
20060292952
2006-12-28

Fiber mat and process for making same

#167
20060231228
2006-10-19

Cellulosic composition

#168
20060169431
2006-08-03

Enhanced efficacy of fungicides in paper and paperboard

#169
20060162882
2006-07-27

Water-soluble polymer dispersion, process for producing the same and method of use therefor

#170
20060159871
2006-07-20

Paper compositions, imaging methods and methods for manufacturing paper

#171
20060142431
2006-06-29

Retention and drainage in the manufacture of paper

#172
20060094798
2006-05-04

Method of emulsifying substituted cyclic dicarboxylic acid anhydride sizing agents and emulsion for papermaking

#173
20060065380
2006-03-30

Bicomponent strengthening system for paper

#174
20060014892
2006-01-19

Polyalkyldiallylamine-epihalohydrin resins as wet strength additives for papermaking and process for making the same

#175
20050266758
2005-12-01

Wet-spun non-woven fabric and method for producing the same

#176
20050196598
2005-09-08

Thermally stable, non-woven, fibrous paper, derivatives thereof, and methods for manufacturing the same

#177
20050192402
2005-09-01

Epichlorohydrin-based polymers containing primary amino groups used as additives in papermaking

#178
20050178515
2005-08-18

Strong and dispersible paper products

#179
20050173088
2005-08-11

White pitch deposit treatment

#180
20050082025
2005-04-21

Composition for increasing cellulosic product strength and method of increasing cellulosic product strength

#181
20050048207
2005-03-03

Treatment of natural polymer based materials and the products based thereon

#182
20050032643
2005-02-10

Heat-sensitive recording material

#183
20050025972
2005-02-03

Method for coloring cellulosic materials using cationic pigment dispersion

#184
20050006042
2005-01-13

Reduced by product polyamine-epihalohydrin resins

#185
15342524
2018-01-02

Method for manufacturing fiber-based produced containers