ClassID:

126910

D21H17/44 - 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

Sub-classes:
Recent Application in this class:
#1
20240158987
2024-05-16

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

#2
20230383471
2023-11-30

ABSORBENT PAPER PRODUCTS HAVING UNIQUE PHYSICAL STRENGTH PROPERTIES

#3
20230323606
2023-10-12

ABSORBENT PAPER PRODUCTS HAVING UNIQUE PHYSICAL STRENGTH PROPERTIES

#4
20230313467
2023-10-05

STRENGTH IMPROVEMENT VIA SPRAYBOOM APPLICATION

#5
20230193560
2023-06-22

METHOD FOR OBTAINING A FIBROUS PREPARATION FOR IMMERSION-RESISTANT OPAQUE PAPER

#6
20230129116
2023-04-27

METHOD FOR ON-SITE GLYOXYLATION OF POLYACRYLAMIDE

#7
20230122111
2023-04-20

COMPOSITION AND METHOD FOR MANUFACTURE OF PAPER, BOARD OR THE LIKE

#8
20230071350
2023-03-09

METHOD OF REDUCING HYDROPHOBIC CONTAMINANTS IN A PULPING OR PAPERMAKING PROCESS

#9
20210268783
2021-09-02

Light weight linerboard for corrugated board

#10
20200332472
2020-10-22

Absorbent paper products having unique physical strength properties

#11
20200332471
2020-10-22

Absorbent paper products having unique physical strength properties

#12
20200087859
2020-03-19

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

#13
20190276578
2019-09-12

Polymer composition and its uses

#14
20190119857
2019-04-25

Method and treatment system for making of paper

#15
20190048530
2019-02-14

Process for manufacturing paper and board

#16
20190048529
2019-02-14

System and method for manufacture of paper, board or the like

#17
20190024318
2019-01-24

Process for production of film comprising microfibrillated cellulose

#18
20180327974
2018-11-15

Process for making paper, paperboard or the like

#19
20180320316
2018-11-08

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

#20
20180230652
2018-08-16

Pitch-controlling agent and pitch-controlling method

#21
20180202111
2018-07-19

Production of sack paper

#22
20180195239
2018-07-12

Absorbent paper products having unique physical strength properties

#23
20180187377
2018-07-05

Absorbent paper products having unique physical strength properties

#24
20180016746
2018-01-18

Polymer product in particle form and its use

#25
20170328004
2017-11-16

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

#26
20170292223
2017-10-12

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

#27
20170268177
2017-09-21

Process for making a décor paper having improved optical performance

#28
20170247841
2017-08-31

Drainage management in multi-ply papermaking

#29
20170226696
2017-08-10

Powdery water-soluble cationic polymer composition

#30
20170101740
2017-04-13

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

#31
20160237621
2016-08-18

Manufacture of paper and paperboard containing wood free pulp

#32
20150345081
2015-12-03

Process for the manufacture of paper and paperboard

#33
20150330028
2015-11-19

Décor paper having improved optical performance comprising treated inorganic particles

#34
20150299958
2015-10-22

High strength paper

#35
20150298481
2015-10-22

Crease-resistant security film

#36
20150275438
2015-10-01

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

#37
20150216374
2015-08-06

Dispersible hydroentangled basesheet with triggerable binder

#38
20150068697
2015-03-12

Method for dissolving cationic starch, papermaking agent and its use

#39
20150027650
2015-01-29

Process for the manufacture of paper and paperboard

#40
20150007956
2015-01-08

Silica-based sols

#41
20150000852
2015-01-01

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

#42
20140363662
2014-12-11

Paper laminates made from decor paper having improved optical performance comprising treated inorganic particles

#43
20140363581
2014-12-11

Printing coated paper and method for producing a printed material using the same

#44
20140124155
2014-05-08

Manufacture of paper and paperboard

#45
20140124154
2014-05-08

Process for the production of paper and board

#46
20140102649
2014-04-17

Method for producing paper, paperboard and cardboard having high dry strength

#47
20120301536
2012-11-29

Anti-microbial tissue paper and process to manufacture same

#48
20120255694
2012-10-11

Soft creped tissue having slow wet out time

#49
20120255693
2012-10-11

Soft creped tissue

#50
20120227920
2012-09-13

Process for production of paper

#51
20120205065
2012-08-16

Method for producing paper, paperboard and cardboard having high dry strength

#52
20120186764
2012-07-26

Enhanced dry strength and drainage performance by combining glyoxalated acrylamide-containing polymers with cationic aqueous dispersion polymers

#53
20120171384
2012-07-05

SIZING AGENT FOR PAPER

#54
20120160437
2012-06-28

Process for the production of sized and/or wet-strength papers, paperboards and cardboards

#55
20120152476
2012-06-21

High strength paper

#56
20120132382
2012-05-31

Acrylamide-derived cationic copolymers, and uses thereof

#57
20120073773
2012-03-29

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

#58
20120043040
2012-02-23

Method of treating paper forming wire surface

#59
20110315333
2011-12-29

Paper making process using binder/filler agglomerates

#60
20110308752
2011-12-22

Method for producing paper, card and board with high dry strength

#61
20110253333
2011-10-20

Paper making processes and system using enzyme and cationic coagulant combination

#62
20110132559
2011-06-09

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

#63
20110048660
2011-03-03

Process for the production of paper, board and cardboard having high dry strength

#64
20100307706
2010-12-09

REDUCED SHEAR CELLULOSE REACTIVE SIZING AGENT FOR WET END APPLICATIONS

#65
20100300633
2010-12-02

Methods for producing coating base papers and coated papers

#66
20100170646
2010-07-08

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

#67
20100170419
2010-07-08

Silica-based sols

#68
20100166968
2010-07-01

Method for Treating a Paper Product

#69
20100147476
2010-06-17

Hydrophobically modified poly(aminoamides)

#70
20100089541
2010-04-15

Manufacture of filled paper

#71
20100084103
2010-04-08

Manufacture of paper or paperboard

#72
20100084102
2010-04-08

Papermaking additive and filled paper

#73
20100078930
2010-04-01

Crumple-resistant security sheet, a method of manufacturing such a sheet, and a security document including such a sheet

#74
20100043990
2010-02-25

BIOPOLYMERS AS WET STRENGTH ADDITIVES

#75
20100022701
2010-01-28

FINELY DIVIDED, CATIONIC POLYMER DISPERSIONS

#76
20090277597
2009-11-12

Method for producing paper and cardboard

#77
20090008050
2009-01-08

METHODS FOR PRODUCING WET-SPUN NON-WOVEN FABRICS

#78
20080292879
2008-11-27

Article formed into sheet, method for producing the same and exothermic formed article

#79
20080156448
2008-07-03

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

#80
20080149287
2008-06-26

Polyacrylamide-based strengthening agent

#81
20080128102
2008-06-05

Composition and method for paper processing

#82
20080066880
2008-03-20

Method for paper processing

#83
20080004405
2008-01-03

Retention improving composition

#84
20070272380
2007-11-29

Method of making a paper web containing refined long fiber using a charge controlled headbox

#85
20070215301
2007-09-20

Method for making a low density multi-ply paperboard with high internal bond strength

#86
20060289139
2006-12-28

Retention and drainage in the manufacture of paper

#87
20060260774
2006-11-23

Anionic-cationic polymer blend for surface size

#88
20060169431
2006-08-03

Enhanced efficacy of fungicides in paper and paperboard

#89
20060144542
2006-07-06

Composition

#90
20060106137
2006-05-18

Paper quality improver

#91
20060102306
2006-05-18

Paper improver

#92
20060032595
2006-02-16

Method of making a paper web containing refined long fiber using a charge controlled headbox and a single ply towel made by the process

#93
20050266758
2005-12-01

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

#94
20050239356
2005-10-27

Crosslinkable cationic emulsion binders and their use as a binder for nonwovens

#95
20050065284
2005-03-24

Novel latex compositions for deposition on various substrates

#96
20050034829
2005-02-17

Sheet surface treating and ink-jet printing paper

#97
20050022956
2005-02-03

Anionic-cationic polymer blend for surface size