with O3

Industry

CPC
D21C9/1073

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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

D21C9/1073with O3

Industries

Patents Grantslast 30 patents

Information Patent Grant
Method for treating chemical pulps by treatment with ozone in the p...
- Patent number 10,006,168
- Issue date Jun 26, 2018
- L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Geo...
- Frederic Pouyet
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method of gas treatment of fluffed pulp
- Patent number 4,468,286
- Issue date Aug 28, 1984
- Myrens Verksted A/S
- Oystein Johnsen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for treating fibrous material with a gas
- Patent number 4,426,256
- Issue date Jan 17, 1984
- Myrens Verksted A/S
- Oystein Johnsen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Low energy TMP furnish of improved strength by ozonation and press...
- Patent number 4,391,670
- Issue date Jul 5, 1983
- International Paper Company
- Richard B. Phillips
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Reducing chemical transfer between treatment stages
- Patent number 4,310,384
- Issue date Jan 12, 1982
- Weyerhaeuser Company
- Michael D. Meredith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Ozone effluent bleaching
- Patent number 4,283,251
- Issue date Aug 11, 1981
- Scott Paper Company
- Rudra P. Singh
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for treating refined mechanical pulp and thermo mechanical p...
- Patent number 4,279,694
- Issue date Jul 21, 1981
- Myrens Verksted A/S
- Bjorn H. Fritzvold
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for bleaching pulp with ozone
- Patent number 4,278,496
- Issue date Jul 14, 1981
- Myrens Verksted A/S
- Bjorn H. Fritzvold
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Additives for ozone bleaching
- Patent number 4,229,252
- Issue date Oct 21, 1980
- Weyerhaeuser Company
- Michael D. Meredith
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Low-consistency ozone delignification
- Patent number 4,216,054
- Issue date Aug 5, 1980
- Weyerhaeuser Company
- Jozef M. Bentvelzen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and an apparatus for processing finely divided fibrous pulp...
- Patent number 4,123,317
- Issue date Oct 31, 1978
- Myrens Verksted A/S
- Bjorn H. Fritzvold
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for bleaching wood pulp with ozone in the presence of a cat...
- Patent number 4,119,486
- Issue date Oct 10, 1978
- Westvaco Corporation
- Robert C. Eckert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Delignification and bleaching of a lignocellulosic pulp slurry with...
- Patent number 4,080,249
- Issue date Mar 21, 1978
- International Paper Company
- Arthur W. Kempf
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
3663357
- Patent number 3,663,357
- Issue date May 16, 1972
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
3451888
- Patent number 3,451,888
- Issue date Jun 24, 1969
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
2466633
- Patent number 2,466,633
- Issue date Apr 5, 1949
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
ABSORPTION AND FILTRATION MEDIA
- Publication number 20210395465
- Publication date Dec 23, 2021
- Robert James McClelland Kelly
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Use of Cellulase to improve Viscosity Control of Dissolving Pulp
- Publication number 20190257031
- Publication date Aug 22, 2019
- NOVOZYMES A/S
- Pedro Emanuel Garcia-Loureiro
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR TREATING CHEMICAL PULPS BY TREATMENT WITH OZONE IN THE P...
- Publication number 20160130751
- Publication date May 12, 2016
- L'Air Liquid Societe Anonyme pour L'Etude et Explo itation des Procedes Georg...
- Frédéric Pouyet
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method for treating chemical pulps by treatment with ozone in the p...

Method of gas treatment of fluffed pulp

Apparatus for treating fibrous material with a gas

Low energy TMP furnish of improved strength by ozonation and press...

Reducing chemical transfer between treatment stages

Ozone effluent bleaching

Method for treating refined mechanical pulp and thermo mechanical p...

Method for bleaching pulp with ozone

Additives for ozone bleaching

Low-consistency ozone delignification

Method and an apparatus for processing finely divided fibrous pulp...

Process for bleaching wood pulp with ozone in the presence of a cat...

Delignification and bleaching of a lignocellulosic pulp slurry with...

3663357

3451888

2466633

Patents Applicationslast 30 patents

ABSORPTION AND FILTRATION MEDIA

Use of Cellulase to improve Viscosity Control of Dissolving Pulp

METHOD FOR TREATING CHEMICAL PULPS BY TREATMENT WITH OZONE IN THE P...