with reducing compounds

Industry

CPC
D21C9/1084

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Parent Industries

DTEXTILES PAPER D21Papermaking D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR D21C9/00After-treatment of cellulose pulp

Current Industry

D21C9/1084with reducing compounds

Industries

Patents Grantslast 30 patents

Information Patent Grant
High efficiency fiber bleaching process
- Patent number 11,840,805
- Issue date Dec 12, 2023
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Dissolving wood pulps and methods of making and using the same
- Patent number 11,661,704
- Issue date May 30, 2023
- GP Cellulose GmbH
- Arthur James Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
High efficiency fiber bleaching process
- Patent number 11,591,751
- Issue date Feb 28, 2023
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Dissolving wood pulps and methods of making and using the same
- Patent number 11,105,042
- Issue date Aug 31, 2021
- GP Cellulose GmbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Bleaching and shive reduction process for non-wood fibers
- Patent number 10,711,399
- Issue date Jul 14, 2020
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Processes and compositions for brightness improvement in paper prod...
- Patent number 9,932,709
- Issue date Apr 3, 2018
- Ecolab USA Inc.
- Prasad Y. Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for improving brightness in bleached pulp
- Patent number 9,068,293
- Issue date Jun 30, 2015
- Nalco Company
- Prasad Y. Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing bleached pulp
- Patent number 8,864,942
- Issue date Oct 21, 2014
- Mitsubishi Gas Chemical Company, Inc.
- Iori Tomoda
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for the use of oxidants for microbial control under reducing...
- Patent number 8,808,500
- Issue date Aug 19, 2014
- Lonza Inc.
- Kevin Janak
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the production of bleached wood particles and pale to w...
- Patent number 8,784,607
- Issue date Jul 22, 2014
- BASF SE
- Dieter Schoenhaber
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing bleached pulp
- Patent number 8,268,123
- Issue date Sep 18, 2012
- Mitsubishi Gas Chemical Company, Inc.
- Iori Tomoda
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Methods for enhancing brightness and resistance to thermal yellowin...
- Patent number 8,246,780
- Issue date Aug 21, 2012
- Nalco Company
- Prasad Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for manufacturing bleached mechanical and chemithermomechani...
- Patent number 7,736,463
- Issue date Jun 15, 2010
- Holmen Aktiebolag
- Eric Yijing Zhang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Bleaching and brightness stabilization of lignocellulosic materials...
- Patent number 7,285,181
- Issue date Oct 23, 2007
- FPInnovations
- Thomas Qiuxiong Hu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Peroxide bleaching of wood pulp using stabilizers and sodium hydros...
- Patent number 7,001,484
- Issue date Feb 21, 2006
- University of New Brunswick
- Yonghao Ni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for bleaching pulp or paper
- Patent number 6,758,942
- Issue date Jul 6, 2004
- Royce Associates
- Ronald C. Naddeo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sulphinic acid derivatives, method for producing them, and their use
- Patent number 6,586,622
- Issue date Jul 1, 2003
- L. Bruggemann KG
- Josef Berghofer
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Method of bleaching with formamidine sulfinic acid using a reducing...
- Patent number 6,428,653
- Issue date Aug 6, 2002
- West Fraser Timber Co. Ltd.
- Richard C. Denton
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Formamidinesulfinic-acid compositions
- Patent number 6,319,288
- Issue date Nov 20, 2001
- Degussa AG
- Harald Jakob
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Sulphinic acid derivatives, method for producing them, and their use
- Patent number 6,211,400
- Issue date Apr 3, 2001
- L. Bruggemann KG
- Josef Berghofer
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for producing thiourea dioxide
- Patent number 5,958,184
- Issue date Sep 28, 1999
- Mitsubishi Gas Chemical Company Inc.
- Toshiaki Kanada
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Exothermic bleaching of high-yield pulps simultaneously with oxygen...
- Patent number 5,611,889
- Issue date Mar 18, 1997
- Pulp and Paper Research Institute of Canada
- Gordon Leary
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Sequential bleaching of de-inked paper pulp with sodium bisulfite,...
- Patent number 5,562,803
- Issue date Oct 8, 1996
- Morton International, Inc.
- David L. K. Wang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for preserving the mechanical strength properties of chemic...
- Patent number 5,534,115
- Issue date Jul 9, 1996
- Interox International (Societe Anonyme)
- Marc Hoyos
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Bleaching recycled pulp with a reductive-oxidative sequence
- Patent number 5,464,501
- Issue date Nov 7, 1995
- Societe Anonyme pour l'Etude et l'Exploitation l'Air Liquide, des Procedes Ge...
- Jack Kogan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Quaternary compounds as brightness enhancers
- Patent number 5,458,737
- Issue date Oct 17, 1995
- Hoechst Celanese Corporation
- Leonard L. Diaddario
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Bleaching of deinked paper/wood pulp
- Patent number 5,449,436
- Issue date Sep 12, 1995
- Atochem
- Lucien Bourson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for de-inking recycled paper pulp with a reducing agent
- Patent number 5,429,716
- Issue date Jul 4, 1995
- Morton International, Inc.
- Maurice Hache
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of bleaching de-inked pulp and removing the ink particles wi...
- Patent number 5,391,261
- Issue date Feb 21, 1995
- Morton International, Inc.
- Luc Van Den Bergh
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Hydrolysis of resin in pulp with an enzyme and a hydrosulfite
- Patent number 5,338,403
- Issue date Aug 16, 1994
- Novo Nordisk A/S
- Lars S. Pedersen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
High Efficiency Fiber Bleaching Process
- Publication number 20230167604
- Publication date Jun 1, 2023
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
CELLULOSE MATERIAL PLASTICIZATION AND VISCOSITY CONTROLLED CELLULOS...
- Publication number 20220298725
- Publication date Sep 22, 2022
- UPM-Kymmene Corporation
- Pasi VIRTANEN
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR MANUFACTURING BLEACHED PULP, FEEDSTOCK, AND PACKAGING SY...
- Publication number 20220267957
- Publication date Aug 25, 2022
- WestRock MWV, LLC
- Fritz G. Paulsen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME
- Publication number 20210355635
- Publication date Nov 18, 2021
- GP CELLULOSE GMBH
- Arthur James NONNI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
High Efficiency Fiber Bleaching Process
- Publication number 20210079594
- Publication date Mar 18, 2021
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
BLEACHING AND SHIVE REDUCTION PROCESS FOR NON-WOOD FIBERS
- Publication number 20200332466
- Publication date Oct 22, 2020
- GPCP IP Holdings LLC
- Jeffrey A. Lee
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Application
NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME
- Publication number 20190264388
- Publication date Aug 29, 2019
- GP Cellulose GMbH
- Arthur J. Nonni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESSES AND COMPOSITIONS FOR BRIGHTNESS IMPROVEMENT IN PAPER PROD...
- Publication number 20140259458
- Publication date Sep 18, 2014
- Ecolab USA Inc.
- Prasad Y. Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for the Use of Oxidants for Microbial Control Under Reducing...
- Publication number 20130302443
- Publication date Nov 14, 2013
- Lonza Inc.
- Kevin Janak
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
METHOD FOR IMPROVING BRIGHTNESS IN BLEACHED PULP
- Publication number 20130206350
- Publication date Aug 15, 2013
- Prasad Y. Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR PRODUCING BLEACHED PULP
- Publication number 20130062026
- Publication date Mar 14, 2013
- Iori Tomoda
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
COMPOSITIONS AND PROCESSES FOR PAPER
- Publication number 20120211185
- Publication date Aug 23, 2012
- Prasad Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR THE PRODUCTION OF BLEACHED WOOD PARTICLES AND PALE TO W...
- Publication number 20100132898
- Publication date Jun 3, 2010
- BASF SE
- Dieter Schoenhaber
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
PROCESS FOR PRODUCING BLEACHED PULP
- Publication number 20090183845
- Publication date Jul 23, 2009
- Iori Tomoda
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
MULTI-STEP PULP BLEACHING
- Publication number 20080087390
- Publication date Apr 17, 2008
- Fort James Corporation
- Jeffrey A. Lee
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Pulp Bleaching Processes
- Publication number 20070246176
- Publication date Oct 25, 2007
- Shoichi Miyawaki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Treatment of cellulose during bleaching with agent capable of reduc...
- Publication number 20070199668
- Publication date Aug 30, 2007
- Borregaard ChemCell
- Justin T. Scarpello
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Treatment of cellulose during bleaching with agent capable of reduc...
- Publication number 20070151680
- Publication date Jul 5, 2007
- Borregaard ChemCell
- Justin T. Scarpello
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method of brightness enhancement
- Publication number 20070131365
- Publication date Jun 14, 2007
- Prasad Y. Duggirala
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Compositions and processes for paper production
- Publication number 20070062653
- Publication date Mar 22, 2007
- Prasad Duggirala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Treatment of cellulose during bleaching with agent capable of reduc...
- Publication number 20060249265
- Publication date Nov 9, 2006
- Borregaard ChemCell
- Justin T. Scarpello
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Compositions and methods for enhancing brightness and brightness st...
- Publication number 20060229393
- Publication date Oct 12, 2006
- Prasad Duggirala
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method for bleaching wood fibers
- Publication number 20060081345
- Publication date Apr 20, 2006
- Qiang Huang
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Peroxide bleaching of wood pulp
- Publication number 20060081346
- Publication date Apr 20, 2006
- the University of New Brunswick
- Yonghao Ni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for bleaching and color stripping recycled fibers
- Publication number 20040211533
- Publication date Oct 28, 2004
- Qiang Huang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Process for bleaching pulp or paper
- Publication number 20040188043
- Publication date Sep 30, 2004
- Ronald C. Naddeo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Bleaching and brightness stabilization of lignocellulosic materials...
- Publication number 20040173328
- Publication date Sep 9, 2004
- Thomas Qiuxiong Hu
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Treatment of a mixture containing cellulose
- Publication number 20040000012
- Publication date Jan 1, 2004
- Borregaard ChemCell
- Justin T. Scarpello
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for bleaching pulp or paper
- Publication number 20030155085
- Publication date Aug 21, 2003
- Ronald C. Naddeo
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Peroxide bleaching of wood pulp
- Publication number 20030070777
- Publication date Apr 17, 2003
- Yonghao Ni
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

with reducing compounds

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

High efficiency fiber bleaching process

Dissolving wood pulps and methods of making and using the same

High efficiency fiber bleaching process

Dissolving wood pulps and methods of making and using the same

Bleaching and shive reduction process for non-wood fibers

Processes and compositions for brightness improvement in paper prod...

Method for improving brightness in bleached pulp

Process for producing bleached pulp

Method for the use of oxidants for microbial control under reducing...

Process for the production of bleached wood particles and pale to w...

Process for producing bleached pulp

Methods for enhancing brightness and resistance to thermal yellowin...

Method for manufacturing bleached mechanical and chemithermomechani...

Bleaching and brightness stabilization of lignocellulosic materials...

Peroxide bleaching of wood pulp using stabilizers and sodium hydros...

Process for bleaching pulp or paper

Sulphinic acid derivatives, method for producing them, and their use

Method of bleaching with formamidine sulfinic acid using a reducing...

Formamidinesulfinic-acid compositions

Sulphinic acid derivatives, method for producing them, and their use

Process for producing thiourea dioxide

Exothermic bleaching of high-yield pulps simultaneously with oxygen...

Sequential bleaching of de-inked paper pulp with sodium bisulfite,...

Process for preserving the mechanical strength properties of chemic...

Bleaching recycled pulp with a reductive-oxidative sequence

Quaternary compounds as brightness enhancers

Bleaching of deinked paper/wood pulp

Process for de-inking recycled paper pulp with a reducing agent

Method of bleaching de-inked pulp and removing the ink particles wi...

Hydrolysis of resin in pulp with an enzyme and a hydrosulfite

Patents Applicationslast 30 patents

High Efficiency Fiber Bleaching Process

CELLULOSE MATERIAL PLASTICIZATION AND VISCOSITY CONTROLLED CELLULOS...

METHOD FOR MANUFACTURING BLEACHED PULP, FEEDSTOCK, AND PACKAGING SY...

NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME

High Efficiency Fiber Bleaching Process

BLEACHING AND SHIVE REDUCTION PROCESS FOR NON-WOOD FIBERS

NOVEL DISSOLVING WOOD PULPS AND METHODS OF MAKING AND USING THE SAME

PROCESSES AND COMPOSITIONS FOR BRIGHTNESS IMPROVEMENT IN PAPER PROD...

Method for the Use of Oxidants for Microbial Control Under Reducing...

METHOD FOR IMPROVING BRIGHTNESS IN BLEACHED PULP

PROCESS FOR PRODUCING BLEACHED PULP

COMPOSITIONS AND PROCESSES FOR PAPER

PROCESS FOR THE PRODUCTION OF BLEACHED WOOD PARTICLES AND PALE TO W...

PROCESS FOR PRODUCING BLEACHED PULP

MULTI-STEP PULP BLEACHING

Pulp Bleaching Processes

Treatment of cellulose during bleaching with agent capable of reduc...

Treatment of cellulose during bleaching with agent capable of reduc...

Method of brightness enhancement

Compositions and processes for paper production

Treatment of cellulose during bleaching with agent capable of reduc...

Compositions and methods for enhancing brightness and brightness st...

Method for bleaching wood fibers

Peroxide bleaching of wood pulp

Method for bleaching and color stripping recycled fibers

Process for bleaching pulp or paper

Bleaching and brightness stabilization of lignocellulosic materials...

Treatment of a mixture containing cellulose

Process for bleaching pulp or paper

Peroxide bleaching of wood pulp