ClassID:

126911

D21H17/45 - 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 by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic Nitrogen-containing groups

Recent Application in this class:
#1
20250223763
2025-07-10

COMPOSITIONS AND METHODS FOR IMPROVING A PAPERMAKING PROCESS

#2
20250171576
2025-05-29

NEW POLYMER AND ITS PREPARATION METHOD

#3
20240417929
2024-12-19

STRENGTH SYNERGY BETWEEN POLYMER AND PAPERMAKING STRENGTH AID

#4
20240344271
2024-10-17

USE OF MODIFIED LIGNIN AS A WET END STRENGTH ADDITIVE

#5
20240167226
2024-05-23

OIL-RESISTANT AGENT COMPOSITION

#6
20230053998
2023-02-23

PRODUCT CONTAINING AN ANIONIC CELLULOSE DERIVATIVE AND ITS USE IN PAPER INDUSTRY

#7
20220341095
2022-10-27

PAPER-STRENGTHENING AGENT, PAPER, AND METHOD OF PRODUCING PAPER

#8
20220033540
2022-02-03

Method for the hydrolysis of a polymer

#9
20220018065
2022-01-20

METHOD OF PRODUCING HOLOCELLULOSE AND PAPER STRENGTH AGENT, PROCESS FOR THE PRODUCTION OF PAPER, THE PAPER PRODUCED AND USE OF THE PRODUCED PAPER

#10
20210259243
2021-08-26

ANTI-MICROBIAL POLYMER INCORPORATING A QUATERNARY AMMONIUM GROUP

#11
20210221114
2021-07-22

Ply of a linerboard and a light weight linerboard for corrugated board

#12
20210095424
2021-04-01

Method to produce a fibrous product comprising microfibrillated cellulose

#13
20210054569
2021-02-25

Pulp molded product and method for manufacturing same

#14
20210002830
2021-01-07

Method for manufacturing a multi-layered paperboard, multi-layered paperboard and composition for use in multi-layered paperboard manufacturing

#15
20200080264
2020-03-12

Method for increasing the strength properties of a paper or board product

#16
20200063340
2020-02-27

Method for dewatering of sludge from a pulp, paper or board making process

#17
20200002893
2020-01-02

Pre-mix useful in the manufacture of a fiber based product

#18
20190359739
2019-11-28

HIGH MOLECULAR WEIGHT TEMPORARY WET STRENGTH RESIN FOR PAPER

#19
20190309480
2019-10-10

Foam assisted application of strength additives to paper products

#20
20190276578
2019-09-12

Polymer composition and its uses

#21
20190085105
2019-03-21

Polymer, method for producing polymer and polymer flocculant

#22
20190048530
2019-02-14

Process for manufacturing paper and board

#23
20190017225
2019-01-17

Superabsorbent material sat (super absorbent tissue)

#24
20190003124
2019-01-03

Cationic surface sizing agent

#25
20180363247
2018-12-20

Polymer for pitch and stickies deposition control in papermaking

#26
20180327974
2018-11-15

Process for making paper, paperboard or the like

#27
20180320316
2018-11-08

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

#28
20180194906
2018-07-12

Method for producing a material with a network of at least two polymers, a product thereof and use of the product

#29
20180080175
2018-03-22

Increased drainage performance in papermaking systems using microfibrillated cellulose

#30
20170328004
2017-11-16

Papermaking process of increasing ash content of a paper product and a paper product obtained by the same

#31
20170314203
2017-11-02

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

#32
20170292223
2017-10-12

Wet strengthened fiber products, wet strengthening resins, and methods for making and using same

#33
20170240661
2017-08-24

Polymer product, method for producing the polymer and use of the polymer

#34
20170233949
2017-08-17

Modified of improving dry strength and/or drainage of a paper or paperboard

#35
20170226696
2017-08-10

Powdery water-soluble cationic polymer composition

#36
20170183821
2017-06-29

Method for producing corrugated cardboard

#37
20170101740
2017-04-13

Method of increasing drainage performance of a pulp slurry during manufacture of paper products, and products therefrom

#38
20170002518
2017-01-05

Papermaking agent composition and method for treating fibre stock

#39
20160355979
2016-12-08

Dispersible hydroentangled basesheet with triggerable binder

#40
20160298297
2016-10-13

Modified vinylamine-containing polymers and their use in papermaking

#41
20160201269
2016-07-14

High molecular weight and high cationic charge glyoxalated polyacrylamide copolymers and their methods of manufacture and use

#42
20160100578
2016-04-14

Anti-microbial polymer incorporating a quaternary ammonium group

#43
20160039985
2016-02-11

Cellulose material having impregnation and use of the cellulose material

#44
20150345081
2015-12-03

Process for the manufacture of paper and paperboard

#45
20150299961
2015-10-22

Modified vinylamine containing polymers and their use in papermaking

#46
20150298481
2015-10-22

Crease-resistant security film

#47
20150275438
2015-10-01

Wet strengthened fiber products, wet strengthening resins, and methods for making and using same

#48
20150267350
2015-09-24

Methods for increasing retention and drainage in papermaking processes

#49
20150176208
2015-06-25

Method for manufacturing paper using a cationic polymer obtained by hofmann degradation

#50
20150129148
2015-05-14

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

#51
20150068697
2015-03-12

Method for dissolving cationic starch, papermaking agent and its use

#52
20150059998
2015-03-05

Furnish pretreatment to improve paper strength aid performance in papermaking

#53
20150027651
2015-01-29

Manufacture of cellulosic pulp sheets

#54
20150027650
2015-01-29

Process for the manufacture of paper and paperboard

#55
20140360691
2014-12-11

Method for producing paper, board or the like and agglomerate

#56
20140345817
2014-11-27

System and process for improving paper and paper board

#57
20140335367
2014-11-13

Composition and recording sheet with improved optical properties

#58
20140318727
2014-10-30

Process for the production of paper

#59
20140316072
2014-10-23

Graft polymers having oligoalkylenimine side chains, process for their preparation and their use

#60
20140090791
2014-04-03

Method of sizing paper

#61
20130303725
2013-11-14

Quaternized polyethylenimines with a high quaternization degree

#62
20130215184
2013-08-22

Absorbent plastic pigment with improved print density containing and recording sheet containing same

#63
20130139986
2013-06-06

Process for manufacturing paper and board having improved retention and drainage properties

#64
20130133849
2013-05-30

Composition and recording sheet with improved optical properties

#65
20130133847
2013-05-30

Furnish pretreatment to improve paper strength aid performance in papermaking

#66
20130066013
2013-03-14

ANTIMICROBIAL AND BACTERIOSTATIC-MODIFIED POLYMERS FOR CELLULOSE FIBRES

#67
20120285644
2012-11-15

FUNCTIONALIZATION OF PAPER COMPONENTS

#68
20120199304
2012-08-09

Controllable filler prefloculation using a dual polymer system

#69
20120199298
2012-08-09

Wet strength resins derived from renewable resources

#70
20120164206
2012-06-28

Bacteriostatic tissue product

#71
20120138248
2012-06-07

Paper substrate containing a wetting agent and having improved print mottle

#72
20120090800
2012-04-19

Composite intermediate, method for forming same, and use of the composite intermediate

#73
20120055643
2012-03-08

Polymer-containing articles of manufacture and methods for making same

#74
20110303375
2011-12-15

Tissue products containing microalgae materials

#75
20110253333
2011-10-20

Paper making processes and system using enzyme and cationic coagulant combination

#76
20110247773
2011-10-13

Process for the production of paper

#77
20110226433
2011-09-22

Method of increasing filler content in papermaking

#78
20110146926
2011-06-23

Paper sizing composition

#79
20110139356
2011-06-16

Method of manufacturing coating elements and production installation relating thereto

#80
20110114275
2011-05-19

RESIN PRECURSOR

#81
20110108226
2011-05-12

Aqueous suspensions of fine-particulate fillers, method for the manufacture thereof and use thereof for the manufacture of filler-containing papers

#82
20100326615
2010-12-30

Papermaking And Products Made Thereby With High Solids Glyoxalated-Polyacrylamide And Silicon-Containing Microparticle

#83
20100326614
2010-12-30

Cationic copolymers derived from acrylamides and use thereof

#84
20100280203
2010-11-04

Graft polymers having oligoalkylenimine side chains, process for their preparation and their use

#85
20100186914
2010-07-29

Water-soluble post branched cationic acrylamide polymers and use thereof

#86
20100105272
2010-04-29

Roofing mat using urea-formaldehyde binder of particular viscosity and surface tension

#87
20100059191
2010-03-11

HEAT, GREASE, AND CRACKING RESISTANT RELEASE PAPER AND PROCESS FOR PRODUCING THE SAME

#88
20100022701
2010-01-28

FINELY DIVIDED, CATIONIC POLYMER DISPERSIONS

#89
20090317549
2009-12-24

Composition and recording sheet with improved optical properties

#90
20090314446
2009-12-24

Low amidine content polyvinylamine, compositions containing same and methods

#91
20090312512
2009-12-17

High molecular weight compact structured polymers, methods of making and using

#92
20090308551
2009-12-17

Absorbent sheet prepared with papermaking fiber and synthetic fiber exhibiting improved wet strength

#93
20090277597
2009-11-12

Method for producing paper and cardboard

#94
20090272506
2009-11-05

Papers with a high filler material content and high dry strength

#95
20090165977
2009-07-02

Paper substrate containing a wetting agent and having improved print mottle

#96
20090165975
2009-07-02

Functionalization of paper components

#97
20090162642
2009-06-25

PAPER CONTAINING PREGGREGATED FILLER AND PROCESS FOR PRODUCING THE SAME

#98
20080308242
2008-12-18

High solids glyoxalated polyacrylamide

#99
20080277084
2008-11-13

ASA Sizing Emulsions For Paper and Paperboard

#100
20080196851
2008-08-21

Method of producing high dry strength paper and cardboard and paper and cardboard thus obtained

#101
20080160258
2008-07-03

Roofing mat using urea-formaldehyde binder of particular viscosity and surface tension

#102
20080156448
2008-07-03

Method for making paper and cardboard with high dry strength and resulting papers and cardboards

#103
20080139441
2008-06-12

Antimicrobial and bacteriostatic-modified polymers for cellulose fibres

#104
20080039598
2008-02-14

Fine-particled amphoteric aqueous polymer dispersion method for production and use thereof

#105
20080009596
2008-01-10

Michael addition adducts as additives for paper and papermaking

#106
20070261807
2007-11-15

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

#107
20070107864
2007-05-17

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

#108
20070044930
2007-03-01

Bulk softened fibrous structures

#109
20060249269
2006-11-09

High molecular weight compact structured polymers, methods of making and using

#110
20060159871
2006-07-20

Paper compositions, imaging methods and methods for manufacturing paper

#111
20060142432
2006-06-29

Retention and drainage in the manufacture of paper

#112
20060130991
2006-06-22

Process for the production of paper

#113
20060084772
2006-04-20

Method of preparing modified diallyl-N,N-disubstituted ammonium halide polymers

#114
20060084771
2006-04-20

Method of preparing modified diallyl-N,N-disubstituted ammonium halide polymers

#115
20060048908
2006-03-09

System for control of stickies in recovered and virgin paper processing

#116
20060037725
2006-02-23

Aqueous composition and use thereof for paper production

#117
20060024262
2006-02-02

Aqueous composition and use thereof for paper production

#118
20060000570
2006-01-05

Amphoteric cationic polymers for controlling deposition of pitch and stickies in papermaking

#119
20050178517
2005-08-18

Bulky paper

#120
20050155731
2005-07-21

Process for making abrasion resistant paper and paper and paper products made by the process