ClassID:

126370

D21C5/025 - 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 De-inking

Sub-classes:
Recent Application in this class:
#1
20240011221
2024-01-11

SUPPORTED TOOTHED PLATES IN A DISPERSER

#2
20240003084
2024-01-04

Papermaking additive compositions and methods and uses thereof

#3
20230095967
2023-03-30

Paper precoat process

#4
20230068151
2023-03-02

Wet pulp material processing machine

#5
20220034032
2022-02-03

Supported toothed plates in a disperser including bridge between teeth with cross-sectional shape

#6
20220034031
2022-02-03

Supported toothed plates in a disperser with buttress extending from the substrate and between a first face of a tooth

#7
20210025113
2021-01-28

Methods for deinking UV prints

#8
20210017704
2021-01-21

High consistency re-pulping method, apparatus and absorbent products incorporating recycled fiber

#9
20210009837
2021-01-14

Industrial deinking of ink compositions

#10
20200385924
2020-12-10

Fiber assembly-forming method and fiber assembly-forming apparatus

#11
20200173112
2020-06-04

Methods of making paper and paper with modified cellulose pulps

#12
20200131703
2020-04-30

Supported toothed plates in a disperser

#13
20200131701
2020-04-30

Papermaking additive compositions and methods and uses thereof

#14
20190203414
2019-07-04

PROCESSING APPARATUS, SHEET MANUFACTURING APPARATUS, AND PROCESSING METHOD

#15
20180347111
2018-12-06

High consistency re-pulping method, apparatus and absorbent products incorporating recycled fiber

#16
20180327729
2018-11-15

Cellulase gene

#17
20180258586
2018-09-13

Process for the deinking of coated paper or paperboard

#18
20180209090
2018-07-26

METHOD FOR DECOLORIZING DYE

#19
20180073197
2018-03-15

Methods of making paper and paper with modified cellulose pulps

#20
20170362774
2017-12-21

METHODS FOR SORTING PRINTED MATERIALS AND METHODS FOR MAKING PAPER USING THE PRINTED MATERIALS

#21
20170204566
2017-07-20

Methods of making paper and paper with modified cellulose pulps

#22
20170198434
2017-07-13

Paper recycling device and paper recycling method

#23
20170073891
2017-03-16

Method for producing paper, and pitch removal agent

#24
20170009399
2017-01-12

Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking

#25
20160362834
2016-12-15

Papermaking additive compositions and methods and uses thereof

#26
20160332333
2016-11-17

Paper recycling device and paper recycling method

#27
20160177118
2016-06-23

Industrial deinking of ink compositions

#28
20160010278
2016-01-14

Paper recycling device and paper recycling method

#29
20150315750
2015-11-05

Methods of making paper and paper with modified cellulose pulps

#30
20140374047
2014-12-25

Paper recycling device and paper recycling method

#31
20140027075
2014-01-30

Paper recycling system and paper recycling method

#32
20140020856
2014-01-23

Processes for preparing pulp and paper

#33
20130299110
2013-11-14

Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking

#34
20130228297
2013-09-05

Process for producing modified cellulose pulps, cellulose pulp thus obtained and use of biopolymer for producing cellulose pulps

#35
20130023014
2013-01-24

Cellulase gene

#36
20120305206
2012-12-06

Method for removing ink from paper

#37
20120276619
2012-11-01

Method for recycling paper products coated with polyester polymers

#38
20120135908
2012-05-31

Deinking a cellulosic substrate using magnesium hydroxide

#39
20120135907
2012-05-31

Deinking a cellulosic substrate using magnesium hydroxide

#40
20120103548
2012-05-03

Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking

#41
20110030907
2011-02-10

Method of producing recycled paper pulp from waste printed paper as raw material

#42
20100206498
2010-08-19

Method of deinking recovered paper

#43
20100126684
2010-05-27

Method of increasing filler content in papermaking

#44
20100006243
2010-01-14

Deinking a cellulosic substrate using magnesium hydroxide

#45
20090114360
2009-05-07

Apparatus for treating papermaking feedstock

#46
20080264585
2008-10-30

Process for Deinking Recycled Fibers and Use of an Acid Deinking

#47
20080073042
2008-03-27

Process for enzymatic deinking of printed papers

#48
20070246175
2007-10-25

Process for deinking waste paper

#49
20060213629
2006-09-28

Impregnation of chips with an acid liquid prior to a sulphate pulping process

#50
20060102298
2006-05-18

Method of deinking

#51
20050145349
2005-07-07

Method of de-inking paper and other cellulosic materials

#52
20050121156
2005-06-09

Method of deinking waste paper using cellulase without lowering paper strength and method of evaluating the same