ClassID:

126369

D21C5/022 - CPC Classification

Classification description:

Other processes for obtaining cellulose, e.g. cooking cotton linters Processes characterised by the choice of cellulose-containing starting materials; Working-up waste paper Chemicals therefor

Recent Application in this class:
#1
20260117459
2026-04-30

BAMBOO STRUCTURES, AND METHODS FOR FABRICATION AND USE THEREOF

#2
20260115774
2026-04-30

CLEANING AND DEPOLLUTING OF FIBRES ORIGINATING FROM USED CIGARETTE BUTTS BY CONTACTING WITH A SUPERCRITICAL FLUID AND RECYCLING OF THE DEPOLLUTED FIBRES

#3
20250034805
2025-01-30

PHYSICAL REUTILIZATION OF SILICONIZED PAPERS

#4
20240376668
2024-11-14

STARCH FIXATION AND RETENTION IN RECYCLED FIBER SYSTEMS

#5
20240352672
2024-10-24

CLEANING AND DEPOLLUTING OF FIBRES ORIGINATING FROM USED CIGARETTE BUTTS BY CONTACTING WITH A SUPERCRITICAL FLUID AND RECYCLING OF THE DEPOLLUTED FIBRES

#6
20240295078
2024-09-05

Preparation method and recyclingmethod for degradable and recyclable paper plastics with water resistance and high-strength

#7
20240240399
2024-07-18

CELLULOSE RAW MATERIAL AND METHOD FOR RECYCLING A CELLULOSE RAW MATERIAL FROM BLENDED TEXTILE WASTE

#8
20240050290
2024-02-15

METHOD FOR PRODUCING RECYCLED PULP FIBERS, AND RECYCLED PULP FIBERS

#9
20230167604
2023-06-01

High efficiency fiber bleaching process

#10
20230167603
2023-06-01

METHOD FOR THE PRODUCTION OF PAPER PRODUCTS

#11
20230160142
2023-05-25

Method for producing pulp fibers for cellulose nanofiberization, and pulp fibers for cellulose nanofiberization

#12
20230116374
2023-04-13

Starch fixation and retention in recycled fiber systems

#13
20230087232
2023-03-23

Cleaning and depolluting of fibres originating from used cigarette butts by placing in contact with a supercritical fluid and recycling of the depolluted fibres

#14
20230073443
2023-03-09

METHOD FOR MANUFACTURING BLEACHED PULP FROM A FEEDSTOCK COMPRISING RECYCLED PAPER

#15
20220412003
2022-12-29

Polymer coated paper recycling process and composition

#16
20220412002
2022-12-29

BAMBOO STRUCTURES, AND METHODS FOR FABRICATION AND USE THEREOF

#17
20220340730
2022-10-27

METHOD FOR RECYCLING WASTE ARAMID-MICA COMPOSITE PAPER

#18
20220049381
2022-02-17

Cellulose raw material and method for recycling a cellulose raw material from blended textile waste

#19
20210381163
2021-12-09

Method for separating lignin from ligno-cellulosic material

#20
20210269973
2021-09-02

Method for recovery of cellulosic material from waste ligno-cellulosic material

#21
20210222363
2021-07-22

USED PAPER DIAPER PROCESSING METHOD AND APPARATUS

#22
20210207320
2021-07-08

Lignocellulosic composites prepared with aqueous alkaline and urea solutions in cold temperatures systems

#23
20210147952
2021-05-20

Lignocellulosic conversion processes and products

#24
20200399827
2020-12-24

Method for producing pulp fibers to be saccharified

#25
20200392669
2020-12-17

Method for evaluating degree of cleanliness of recycled material, method for manufacturing recycled material, and method for manufacturing recycled pulp fiber

#26
20200332467
2020-10-22

Recovery method for organic acid, and production method for recycled pulp

#27
20200308764
2020-10-01

Recycled pulp fiber manufacturing method

#28
20200217013
2020-07-09

Method for manufacturing recycled pulp from used sanitary products

#29
20200173104
2020-06-04

Method for manufacturing recycled pulp from used sanitary products

#30
20200149220
2020-05-14

METHOD FOR PRODUCING RECYCLED FIBERS, AND RECYCLED FIBERS

#31
20200146903
2020-05-14

Method for producing recycled pulp fibers by decomposing super absorbant polymers with ozone

#32
20200141055
2020-05-07

Method for producing pulp fibres for saccharification, and aqueous solution of pulp fibres for saccharification

#33
20200131702
2020-04-30

METHOD FOR PRODUCING PULP FIBERS FOR CELLULOSE NANOFIBERIZATION, AND PULP FIBERS FOR CELLULOSE NANOFIBERIZATION

#34
20200116620
2020-04-16

A METHOD FOR MEASURING DISINTEGRATION OF A FIBROUS PRODUCT

#35
20200095728
2020-03-26

Method for isolating alpha cellulose from lignocellulosic materials

#36
20190338463
2019-11-07

Method for recovering pulp fibers from used absorbent article

#37
20190291303
2019-09-26

Method for recovering pulp fiber from used sanitary product and recycled pulp obtained thereby

#38
20190186074
2019-06-20

Method for recovering pulp fibers from used absorbent article

#39
20190177913
2019-06-13

Removal of stickies in the recycling of paper and paperboard

#40
20190169795
2019-06-06

Method for recovering pulp fibers from used absorbent article

#41
20190119851
2019-04-25

Lignocellulosic composites prepared with aqueous alkaline and urea solutions in cold temperatures systems and methods

#42
20180023250
2018-01-25

Methods of optical brightening agent removal

#43
20170335514
2017-11-23

Method for controlling the deposition of stickies in pulping and papermaking processes

#44
20170284021
2017-10-05

Method for recovering pulp fiber from used sanitary product and recycled pulp obtained thereby

#45
20170198438
2017-07-13

Sheet manufacturing apparatus and sheet manufacturing method

#46
20170130282
2017-05-11

Lignocellulosic conversion processes and products

#47
20170107667
2017-04-20

Method for manufacturing recycled pulp from used sanitary products

#48
20160326696
2016-11-10

Sheet manufacturing apparatus and sheet manufacturing method

#49
20160273163
2016-09-22

METHOD FOR PRODUCING ACID WASHED CELLULOSIC FEEDSTOCK FOR ETHANOL PRODUCTION

#50
20150275435
2015-10-01

Sheet manufacturing apparatus and sheet manufacturing method

#51
20150204018
2015-07-23

Polyester for the paper industry

#52
20150053358
2015-02-26

Methods To Control Organic Contaminants In Fibers Using Zeolites

#53
20120067532
2012-03-22

High brightness pulps from lignin rich waste papers

#54
20120031573
2012-02-09

Deinking of waste paper

#55
20090298149
2009-12-03

Sulfite pretreatment for biorefining biomass

#56
20090120596
2009-05-14

Removal of organic deposits from recycled fibers used for producing paper

#57
20070062661
2007-03-22

Process for repulping wet-strength broke

#58
20050067120
2005-03-31

Triacylglycerol oligomer products and methods of making same