ClassID:

126904

D21H17/38 - 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 crosslinkable groups

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

COMPOSITIONS AND METHODS FOR IMPROVING A PAPERMAKING PROCESS

#2
20250034807
2025-01-30

REDUCED FURFURAL CONTENT IN POLYACRYLIC ACID CROSSLINKED CELLULOSE FIBERS

#3
20230383461
2023-11-30

REDUCED FURFURAL CONTENT IN POLYACRYLIC ACID CROSSLINKED CELLULOSE FIBERS

#4
20230203756
2023-06-29

Papermaking agent, manufacturing method for papermaking agent and paper

#5
20230078847
2023-03-16

NOVEL COMPOSITION AND METHOD FOR PAPERMAKING

#6
20200181840
2020-06-11

Reduced furfural content in polyacrylic acid crosslinked cellulose fibers

#7
20190177492
2019-06-13

Paper product and method for increasing the strength thereof

#8
20190085508
2019-03-21

Modified fiber from shredded pulp sheets, methods, and systems

#9
20180298556
2018-10-18

Paper-Making Aid Composition and Process for Increasing Tensile Strength of Paper

#10
20180216294
2018-08-02

Method for producing paper

#11
20180162966
2018-06-14

METHOD FOR PRODUCING POLYACRYLAMIDE COMPOSITION

#12
20170356134
2017-12-14

Binder compositions for making crosslinked cellulose fiber

#13
20170306065
2017-10-26

Method for preparing a dry-strength agent, in particular glyoxylated polyacrylamide

#14
20170240661
2017-08-24

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

#15
20170183817
2017-06-29

Modified fiber from shredded pulp sheets, methods, and systems

#16
20170113372
2017-04-27

Treated porous material

#17
20170101740
2017-04-13

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

#18
20170100853
2017-04-13

Process for treating wood

#19
20170002519
2017-01-05

Method for producing polyacrylamide composition

#20
20160097161
2016-04-07

Method of increasing paper strength

#21
20140090656
2014-04-03

Smoking articles having reduced ignition proclivity characteristics

#22
20130284668
2013-10-31

Curable epoxide containing formaldehyde-free compositions, articles including the same, and methods of using the same

#23
20130284388
2013-10-31

Process for making a stiffened paper

#24
20120279421
2012-11-08

Water stable compositions and articles comprising starch and methods of making the same

#25
20120255696
2012-10-11

Process for making a stiffened paper

#26
20120216709
2012-08-30

WATER STABLE FIBERS AND ARTICLES COMPRISING STARCH, AND METHODS OF MAKING THE SAME

#27
20110056640
2011-03-10

Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems

#28
20100190948
2010-07-29

Temporary wet strength resin for paper applications

#29
20090283231
2009-11-19

Temporary wet strength resin for paper applications

#30
20090120450
2009-05-14

Smoking Articles Having Reduced Ignition Proclivity Characteristics

#31
20090107644
2009-04-30

Dry Strength System for the Production of Paper and Board

#32
20080216979
2008-09-11

Paper making process using cationic polyacrylamides and crosslinking compositions for use in same

#33
20080010853
2008-01-17

Process for Producing Dried Singulated Fibers Using Steam and Heated Air

#34
20070271889
2007-11-29

Nonwoven fibrous mat for MERV filter and method

#35
20070251657
2007-11-01

Temporary wet strength additives

#36
20070158043
2007-07-12

Moisture absorptive and desorptive paper and a method for manufacturing the same

#37
20070082982
2007-04-12

Water stable compositions and articles comprising starch and methods of making the same

#38
20070082981
2007-04-12

Water stable compositions and articles comprising starch and methods of making the same

#39
20070082573
2007-04-12

Water stable fibers and articles comprising starch, and methods of making the same

#40
20070079945
2007-04-12

Water stable fibers and articles comprising starch, and methods of making the same

#41
20070078233
2007-04-05

Temporary wet strength resin for paper applications

#42
20070006390
2007-01-11

Water repellant curable aqueous compositions

#43
20060142535
2006-06-29

Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems

#44
20050109476
2005-05-26

Medium for increasing the absorption capacity of paper pulp for starch

#45
20050086828
2005-04-28

Process for producing dried, singulated fibers using steam and heated air

#46
20050082026
2005-04-21

Fibrous structures exhibiting improved wet strength properties

#47
20050082024
2005-04-21

Temporary wet strength additives

#48
20050082023
2005-04-21

Temporary wet strength resins

#49
20050022415
2005-02-03

System for making dried singulated crosslinked cellulose pulp fibers