ClassID:

126393

D21C9/086 - CPC Classification

Classification description:

After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere; Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching with organic compounds or compositions comprising organic compounds

Recent Application in this class:
#1
20240175206
2024-05-30

METHOD FOR PRODUCING PRODUCTS BASED ON NON-WOODY BIOMASS AS RAW MATERIAL

#2
20240076831
2024-03-07

METHOD FOR PRODUCING PRODUCTS BASED ON WOOD AS A RAW MATERIAL

#3
20230265610
2023-08-24

METHOD TO TREAT A CONDENSATE IN A PULPING PROCESS

#4
20230212821
2023-07-06

METHOD FOR PITCH CONTROL DURING BLEACHING

#5
20220213276
2022-07-07

PROCESSES FOR BIOMASS TREATMENTS

#6
20190301096
2019-10-03

Use of mesoporous silica

#7
20190127911
2019-05-02

Drying/transportation and releasing MFC

#8
20180363249
2018-12-20

Methods to reduce rewinder breaks during paper production from recycled paper furnish

#9
20180134851
2018-05-17

Process for preparing cellulose solution and equipment therefor

#10
20180100270
2018-04-12

Contamination inhibitor composition

#11
20170073891
2017-03-16

Method for producing paper, and pitch removal agent

#12
20160130751
2016-05-12

Method for treating chemical pulps by treatment with ozone in the presence of magnesium ions

#13
20150345080
2015-12-03

Method of using an anti-soiling agent composition

#14
20150322629
2015-11-12

Method for suppressing pitch formation

#15
20150136343
2015-05-21

Enzymatic treatment of virgin fiber and recycled paper to reduce residual mineral oil levels for paper production

#16
20150107790
2015-04-23

METHOD OF SEPARATION OF HEMICELLULOSE AND CELLULOSE FROM POLYSACCHARIDE SOURCES

#17
20150059102
2015-03-05

Drainage of an aqueous composition

#18
20140290881
2014-10-02

Method for reducing negative effects of adhesive contaminants in systems of substances comprising waste paper

#19
20140027079
2014-01-30

Glycerol-based polymers for reducing deposition of organic contaminants in papermaking processes

#20
20130340959
2013-12-26

Methods of using combinations of a lipase and an oxidant for pitch control in paper making processes and products thereof

#21
20130105100
2013-05-02

Method and composition for enzymatic treatment of fiber for papermaking, and paper products made therewith

#22
20120186761
2012-07-26

Method for reducing negative effects of adhesive contaminants in systems of substances comprising waste paper

#23
20120160438
2012-06-28

Composition for inhibiting calcium salt scale formation

#24
20100170646
2010-07-08

Method of increasing enzyme stability and activity for pulp and paper production

#25
20090020243
2009-01-22

Use of Cyclodextrins for Reducing Deposits During Paper Production

#26
20080169073
2008-07-17

PITCH AND STICKIES CONTROL IN PULP AND PAPERMAKING PROCESSES

#27
20070119555
2007-05-31

Methods for reducing wax content of pulp furnish

#28
20060231791
2006-10-19

Cooking aid for improving the removal of extractives in pulp production, its production and use

#29
20060124266
2006-06-15

Use of cyclodextrins for reducing deposits during paper production