ClassID:

126994

D21H21/08 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties; Paper forming aids Dispersing agents for fibres

Recent Application in this class:
#1
20250188679
2025-06-12

STARCH-CELLULOSE COMPOSITE MATERIAL

#2
20250092338
2025-03-20

Articles of Manufacture Comprising Nanocellulose Elements

#3
20250075154
2025-03-06

Articles of Manufacture Comprising Nanocellulose Elements

#4
20250066699
2025-02-27

Articles of Manufacture Comprising Nanocellulose Elements

#5
20230395815
2023-12-07

Gas diffusion layer for proton exchange membrane fuel cell and preparation method thereof

#6
20230383108
2023-11-30

PROCESS FOR PRODUCTION OF CELLULOSE PARTICLES

#7
20230366150
2023-11-16

TREATED KRAFT PULP COMPOSITIONS AND METHODS OF MAKING THE SAME

#8
20230313465
2023-10-05

AN AQUEOUS SLURRY FOR A COATING COLOUR COMPOSITION FOR PAPER, BOARD OR THE LIKE

#9
20230227758
2023-07-20

Articles of manufacture comprising nanocellulose elements

#10
20230227649
2023-07-20

WATER-SOLUBLE POLYMER COMPOSITION

#11
20230057864
2023-02-23

Dispersion of cellulose fibers and method of producing the same

#12
20220412010
2022-12-29

Articles of manufacture comprising nanocellulose elements

#13
20220403301
2022-12-22

Articles of manufacture comprising nanocellulose elements

#14
20220251783
2022-08-11

Starch-cellulose composite material

#15
20220081839
2022-03-17

FILLER COMPOSITIONS COMPRISING MICROFIBRILLATED CELLULOSE AND MICROPOROUS INORGANIC PARTICULATE MATERIAL COMPOSITES FOR PAPER AND PAPERBOARD APPLICATIONS WITH IMPROVED MECHANICAL PROPERTIES

#16
20210254286
2021-08-19

Aramid paper coated with aramid nanofibers and a method of preparing the same

#17
20210095424
2021-04-01

Method to produce a fibrous product comprising microfibrillated cellulose

#18
20200318289
2020-10-08

Inline dilution of microfibrillated cellulose

#19
20190376011
2019-12-12

NONWOVEN MATERIAL FOR CLEANING AND SANITIZING SURFACES

#20
20190217265
2019-07-18

Surfactant composition

#21
20190177916
2019-06-13

CELLULOSE FIBER-CONTAINING MATERIAL AND METHOD FOR PRODUCING CELLULOSE FIBER-CONTAINING MATERIAL

#22
20190077667
2019-03-14

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

#23
20190003123
2019-01-03

Cationic polyetheramine dispersants for preparing papermaking stock

#24
20180320318
2018-11-08

Paper tissue with high bulk and low lint

#25
20180313037
2018-11-01

Dispersant for carbon fibers, carbon fiber dispersion composition, and method for manufacturing carbon fiber sheet

#26
20180105983
2018-04-19

Method for deinking recycled paper

#27
20170080397
2017-03-23

Dispersant, dispersion composition, and fibrous sheet

#28
20140174685
2014-06-26

Cellulase composition containing cellulase and papermaking polymers for paper dry strength application

#29
20140109796
2014-04-24

Cationic polyoxometalate-coated alumina trihydrate dispersants

#30
20130105099
2013-05-02

Fluorescent dyes for paper dyeing

#31
20120022199
2012-01-26

ANTI-AGING CHEMICALS FOR HIGH SOLIDS LOADING SLURRIES

#32
20090314446
2009-12-24

Low amidine content polyvinylamine, compositions containing same and methods

#33
20090159224
2009-06-25

Paper Products Including Surface Treated Thermally Bondable Fibers and Methods of Making the Same

#34
20090114356
2009-05-07

Method of Producing a Fibrous Web

#35
20080185113
2008-08-07

Emulsions

#36
20070072971
2007-03-29

Fiber dispersant-containing systems