Patents-Review.com
ClassID:

126371 ⎘

D21C5/027 - 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 Chemicals therefor

Recent Application in this class:
#1
20250257230
2025-08-14

DE-INKABLE INKS WITH HIGH BIO-RENEWABLE CONTENT

 #2
20240158988
2024-05-16

RECYCLABLE AND REUSABLE POLLEN PAPER

 #3
20200399828
2020-12-24

Method for treating aqueous feed by dissolved gas flotation

 #4
20200063340
2020-02-27

Method for dewatering of sludge from a pulp, paper or board making process

 #5
20190203415
2019-07-04

Processing apparatus, sheet manufacturing apparatus, processing method, and sheet manufacturing method

 #6
20180305870
2018-10-25

Processing device, sheet manufacturing device, processing method, and method for manufacturing sheet

 #7
20180305869
2018-10-25

Processing device, sheet manufacturing apparatus, processing method, and sheet manufacturing method

 #8
20180258586
2018-09-13

Process for the deinking of coated paper or paperboard

 #9
20180134994
2018-05-17

APPARATUS AND METHOD FOR THE TREATMENT OF A SUBSTRATE WITH OZONE BUBBLES

 #10
20180105983
2018-04-19

Method for deinking recycled paper

 #11
20170137995
2017-05-18

Methods for deinking wastepaper by combined use of cutinase and chemical reagents

 #12
20170073891
2017-03-16

Method for producing paper, and pitch removal agent

 #13
20160362834
2016-12-15

Papermaking additive compositions and methods and uses thereof

 #14
20150190318
2015-07-09

EMULSIFYING AGENT FOR USE IN PERSONAL CARE PRODUCTS AND INDUSTRIAL PRODUCTS

 #15
20150183668
2015-07-02

Flocculation treatment agent

 #16
20130312922
2013-11-28

Polyester surfactants for deinking

 #17
20130284386
2013-10-31

DEINKING COMPOSITIONS AND METHODS OF USE

 #18
20130037229
2013-02-14

Polyester surfactants for deinking

 #19
20120305206
2012-12-06

Method for removing ink from paper

 #20
20120135906
2012-05-31

DEINKING A CELLULOSIC SUBSTRATE USING MAGNESIUM SILICATE

 #21
20120103543
2012-05-03

Deinking process

 #22
20110192558
2011-08-11

RECYCLING OF FIBRE PRODUCTS

 #23
20110155334
2011-06-30

Modified inorganic particles for deinking

 #24
20110108221
2011-05-12

Polyester surfactants for deinking

 #25
20110030907
2011-02-10

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

 #26
20100006244
2010-01-14

DEINKING A CELLULOSIC SUBSTRATE USING AN INORGANIC MINERAL

 #27
20100006242
2010-01-14

Deinking a cellulosic substrate using magnesium silicate

 #28
20090165967
2009-07-02

Method for deinking pulp using premixed hydrophobically modified calcium carbonate particles

 #29
20080236769
2008-10-02

Biological De-Inking Method

 #30
20080230193
2008-09-25

Composition Containing Amphoteric Water-Soluble Polymer

 #31
20070166805
2007-07-19

Use of GR2 proteins to modify cellulosic materials and to enhance enzymatic and chemical modification of cellulose

 #32
20070158039
2007-07-12

Method for deinking pulp using premixed hydrophobically modified calcium carbonate particles

 #33
20070107859
2007-05-17

Deinking blends for use in reduced alkali systems

 #34
20060260772
2006-11-23

Process for biological deinking of office waste paper

 #35
20050272041
2005-12-08

Purified plant expansin proteins and DNA encoding same

 #36
20050143275
2005-06-30

Endoglucanase enzyme NCE5 and cellulase preparations containing the same

 #37
20050133172
2005-06-23

Deinking system for carbonate pulping

 #38
20050121156
2005-06-09

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

 #39
20050102762
2005-05-19

Cellulase preparations containing reducing agent and method of processing fiber

 #40
20050098278
2005-05-12

Method of deinking waste paper using a reduced alkali system

 #41
20050039869
2005-02-24

De-inking of waste paper