ClassID:

126909

D21H17/43 - 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 anionic Carboxyl groups or derivatives thereof

Recent Application in this class:
#1
20260139438
2026-05-21

WET LAID PAPER AND PAPERBOARD PRODUCTS WITH HIGH WET STRENGTH AND METHOD OF MAKING THE SAME

#2
20250171577
2025-05-29

NOVEL POLYMER AND METHOD FOR THE PREPARATION THEREOF

#3
20240263400
2024-08-08

USE OF AN ANIONIC ADDITIVE TO IMPROVE DRY STRENGTH COMPOSITION PERFORMANCE

#4
20240218603
2024-07-04

WET LAID PAPER AND PAPERBOARD PRODUCTS WITH HIGH WET STRENGTH AND METHOD OF MAKING THE SAME

#5
20240093433
2024-03-21

A TREATMENT SYSTEM FOR MANUFACTURE OF PAPER, BOARD OR THE LIKE

#6
20230295877
2023-09-21

Method for manufacturing paper and cardboard

#7
20230243103
2023-08-03

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

#8
20220412008
2022-12-29

N-VINYLLACTAM-CONTAINING POLYMERS FOR PAPERMAKING

#9
20220356650
2022-11-10

Process for manufacturing paper or cardboard

#10
20210317249
2021-10-14

SYNTHETIC METHOD FOR THE PREPARATION OF RHEOLOGICAL MODIFYING POLYMERS AND THE USE THEREOF

#11
20210222371
2021-07-22

Method for producing multi-layer paper

#12
20210189659
2021-06-24

Paper strength improving composition, manufacture thereof and use in paper making

#13
20210102008
2021-04-08

Method for producing anionic polymers and use as resistance agents in a paper-making method

#14
20210054569
2021-02-25

Pulp molded product and method for manufacturing same

#15
20200056325
2020-02-20

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

#16
20190382957
2019-12-19

Copolymer, aqueous solution comprising the copolymer and method for reducing negative effects of natural pitch and adhesive contaminants in both pulping and papermaking operations

#17
20190242065
2019-08-08

Dry strength composition, its use and method for making of paper, board or the like

#18
20190055696
2019-02-21

Compositions and methods for treating filler in papermaking

#19
20190024306
2019-01-24

Method for treating starch in pulp, paper and board making processes

#20
20190017225
2019-01-17

Superabsorbent material sat (super absorbent tissue)

#21
20180320316
2018-11-08

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

#22
20180298556
2018-10-18

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

#23
20170274552
2017-09-28

Process for treating wood

#24
20170129131
2017-05-11

Treated wood material

#25
20170101740
2017-04-13

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

#26
20160215455
2016-07-28

Dispersion for producing abrasion-resistant surfaces

#27
20150144282
2015-05-28

Method for increasing paper strength

#28
20150044375
2015-02-12

Dispersible nonwoven

#29
20130269894
2013-10-17

Process for the production of paper

#30
20120325420
2012-12-27

Production of paper, card and board

#31
20120035306
2012-02-09

Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio

#32
20100193147
2010-08-05

Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio

#33
20100108279
2010-05-06

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

#34
20100078930
2010-04-01

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

#35
20100078138
2010-04-01

Unruptured, ionic, swollen starch for use in papermaking

#36
20090126885
2009-05-21

Bulky water-disintegratable cleaning article and process for producing water-disintegratable paper

#37
20090008050
2009-01-08

METHODS FOR PRODUCING WET-SPUN NON-WOVEN FABRICS

#38
20080249230
2008-10-09

Method for Treating Fibrous Substrates

#39
20080033094
2008-02-07

Highly Cationic Polymer Dispersions, Method For Producing Them And Their Use

#40
20070284070
2007-12-13

Paper Manufacturing Process

#41
20070265358
2007-11-15

Anionic copolymers prepared in an inverse emulsion matrix

#42
20070151688
2007-07-05

Process for the production of paper

#43
20070149696
2007-06-28

Aqueous dispersions of copolymers production thereof and use of the same

#44
20060289137
2006-12-28

Retention and drainage in the manufacture of paper

#45
20060249268
2006-11-09

Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio

#46
20060124264
2006-06-15

Wet strength and softness enhancement of paper products

#47
20060037724
2006-02-23

Bulky water-disintegratable cleaning article and process of producing water-disintergratable paper

#48
20050266758
2005-12-01

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

#49
20050252629
2005-11-17

Swollen starch-latex compositions for use in papermaking