ClassID:

126931

D21H17/65 - CPC Classification

Classification description:

Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution; Inorganic compounds Acid compounds

Recent Application in this class:
#1
20260009172
2026-01-08

WET STRENGTH IMPROVED FIBROUS NON-WOVEN FABRICS, IN PARTICULAR PAPER, USES OF THESE WET STRENGTH FABRICS AS WELL AS PRODUCTION METHODS OF THE SAME

#2
20250052006
2025-02-13

MOISTURE/OIL RESISTANT COMPOSITE MATERIALS

#3
20240417931
2024-12-19

COMPOSTABLE CELLULOSE-BASED PAPER FOR GAS BARRIER IN PACKAGING MATERIAL

#4
20240052571
2024-02-15

Moisture/oil resistant composite materials

#5
20240018726
2024-01-18

METHOD FOR REDUCING AMOUNT OF BACTERIAL ENDOSPORES IN AN AQUEOUS FIBRE SUSPENSION

#6
20230167603
2023-06-01

METHOD FOR THE PRODUCTION OF PAPER PRODUCTS

#7
20230141227
2023-05-11

PROCESS FOR PRODUCING COLOURED CARDBOARD IN A CARDBOARD PRODUCTION APPARATUS, AND COLOURED PRODUCED BY SUCH A PROCESS

#8
20230071350
2023-03-09

METHOD OF REDUCING HYDROPHOBIC CONTAMINANTS IN A PULPING OR PAPERMAKING PROCESS

#9
20220403601
2022-12-22

Compostable cellulose-based paper for gas barrier in packaging material

#10
20220378685
2022-12-01

FLUSHABLE WIPE AND METHOD OF FORMING THE SAME

#11
20220136176
2022-05-05

Platelike thermal insulation material made from recycled and environmentally friendly raw materials

#12
20210262165
2021-08-26

LIGNO CELLULOSIC MATERIALS AND THE PRODUCTS MADE THEREFROM

#13
20210009771
2021-01-14

Sheet

#14
20200149223
2020-05-14

Softener composition

#15
20200095729
2020-03-26

COMPOSITION COMPRISING CULTIVATED MICROALGAE FOR USE IN COLORING PROCESSES

#16
20200032456
2020-01-30

Fibrous structures comprising acidic cellulosic fibers and methods of manufacturing the same

#17
20190211508
2019-07-11

Paper Processing Composition and Process of Production

#18
20190127911
2019-05-02

Drying/transportation and releasing MFC

#19
20190016958
2019-01-17

Flame or fire protection agent and production and use thereof, in particular for wood-, cellulose- and polyolefin-based products

#20
20180327670
2018-11-15

Flame or fire retarding agents and their manufacture and use

#21
20180140529
2018-05-24

Flushable wipe and method of forming the same

#22
20180105987
2018-04-19

Softener composition

#23
20180051416
2018-02-22

Method for producing paper

#24
20170314204
2017-11-02

Method for producing paper

#25
20170198436
2017-07-13

LIGNO CELLULOSIC MATERIALS AND THE PRODUCTS MADE THEREFROM

#26
20170198435
2017-07-13

Method for preventing scale formation

#27
20170183822
2017-06-29

Method of increasing the filler content in paper or paperboard

#28
20170172152
2017-06-22

Ligno cellulosic materials and the products made therefrom

#29
20160369456
2016-12-22

METHODS AND SYSTEMS FOR PROCESSING CELLULOSE-CONTAINING MATERIALS AND ISOLATING CELLULOSE MOLECULES; METHODS FOR REGENERATING CELLULOSIC FIBERS

#30
20160186376
2016-06-30

Method for pretreating cellulose pulp

#31
20150283840
2015-10-08

Coated printing paper for industrial inkjet printer and method for manufacturing printed products using the same

#32
20150252531
2015-09-10

Process for making partly-hydrolyzed cellulose using compressed cellulosic materials

#33
20150176031
2015-06-25

Method for digesting a biomass comprising lignin together with cellulose and/or hemicellulose

#34
20150007953
2015-01-08

LIGNO CELLULOSIC MATERIALS AND THE PRODUCTS MADE THEREFROM

#35
20140374045
2014-12-25

Method for pretreating cellulose pulp

#36
20130066291
2013-03-14

Ligno cellulosic materials and the products made therefrom

#37
20120186762
2012-07-26

PRODUCING HALF-STUFFS FOR THE MANUFACTURE OF PAPERY ARTICLES

#38
20110287275
2011-11-24

Ligno cellulosic materials and the products made therefrom

#39
20110201096
2011-08-18

Method for digesting a biomass comprising lignin together with cellulose and/or hemicellulose

#40
20110151149
2011-06-23

Printable substrates with improved brightness from OBAs in presence of multivalent metal salts

#41
20100304166
2010-12-02

Fiber products

#42
20100175839
2010-07-15

PROCESS FOR ADJUSTING THE PH OF A CELLULOSIC PULP, PRODUCTION OF PULP OR PAPER FROM CELLULOSIC PULP AND USE OF (BI)CARBONATE REMOVAL FOR REDUCING THE CONSUMPTION OF ACID

#43
20100032117
2010-02-11

Process for the production of cellulosic product

#44
20100006246
2010-01-14

Process for increasing bulk of a fiber product, fiber product and use thereof

#45
20080305351
2008-12-11

Method For Inhibiting the Crystallization of Boric Acid

#46
20060260773
2006-11-23

Lignocellulosic materials and the products made therefrom