Addition at a location where shear forces are avoided before sheet-forming

Industry

CPC
D21H23/18

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DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR D21H23/00Processes or apparatus for adding material to the pulp or to the paper

Current Industry

D21H23/18Addition at a location where shear forces are avoided before sheet-forming

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing paper and cardboard
- Patent number 12,134,860
- Issue date Nov 5, 2024
- SNF GROUP
- Cyril Barriere
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for manufacture of paper, board or the like and use of the c...
- Patent number 10,787,768
- Issue date Sep 29, 2020
- Kemira Oyj
- Matti Hietaniemi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the manufacture of paper and paperboard
- Patent number 10,113,270
- Issue date Oct 30, 2018
- BASF SE
- Christopher Alan Gray
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the manufacture of paper and paperboard
- Patent number 9,631,319
- Issue date Apr 25, 2017
- BASF SE
- Christopher Alan Gray
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the production of paper
- Patent number 8,888,957
- Issue date Nov 18, 2014
- Akzo Nobel N.V.
- Fredrik Solhage
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the production of paper
- Patent number 8,273,216
- Issue date Sep 25, 2012
- Akzo Nobel N.V.
- Fredrik Solhage
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for the production of paper, cardboard and card
- Patent number 7,998,314
- Issue date Aug 16, 2011
- BASF Aktiengesellschaft
- Oliver Koch
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Production of paper, board and cardboard
- Patent number 7,306,701
- Issue date Dec 11, 2007
- BASF Aktiengesellschaft
- Rainer Blum
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for manufacturing paper having variable characteristics
- Patent number 6,733,627
- Issue date May 11, 2004
- MeadWestvaco Corporation
- Kenneth A. Krukonis
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for crosslinking individualized cellulose fibers
- Patent number 6,436,231
- Issue date Aug 20, 2002
- Weyerhaeuser
- Peter A. Graef
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for manufacturing colored stripped paper
- Patent number 6,270,625
- Issue date Aug 7, 2001
- The Mead Corporation
- Kenneth A. Krukonis
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the production of paper
- Patent number 6,113,741
- Issue date Sep 5, 2000
- Eka Chemicals AB
- Kalle Kettunen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method for reducing the polymer and bentonite requirement in paperm...
- Patent number 6,103,065
- Issue date Aug 15, 2000
- BASF Corporation
- Harry Nelson Humphreys
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the manufacture of paper
- Patent number 5,891,305
- Issue date Apr 6, 1999
- Roquette Freres
- Marcel Dondeyne
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Wet-formed absorbent composite
- Patent number 5,651,862
- Issue date Jul 29, 1997
- Kimberly-Clark Worldwide, Inc.
- Richard Allen Anderson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Aqueous suspensions of poly(ethylene oxide) useful as a flocculent
- Patent number 5,645,731
- Issue date Jul 8, 1997
- Hercules Incorporated
- Charles Lee Burdick
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Swollen starches as papermaking additives
- Patent number 5,620,510
- Issue date Apr 15, 1997
- CPC International Inc.
- Merle J. Mentzer
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Papermaking process
- Patent number 5,595,629
- Issue date Jan 21, 1997
- Nalco Chemical Company
- Arthur J. Begala
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Aqueous suspensions of poly(ethylene oxide) useful as retention aid...
- Patent number 5,578,168
- Issue date Nov 26, 1996
- Hercules Incorporated
- Charles L. Burdick
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Colloidal composition and its use in the production of paper and pa...
- Patent number 5,571,379
- Issue date Nov 5, 1996
- Laporte Industries Limited
- Arthur P. Derrick
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Reactive cyclic N-sulfatoimides and cellulose crosslinked with the...
- Patent number 5,556,976
- Issue date Sep 17, 1996
- Richard A. Jewell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Apparatus for crosslinking individualized cellulose fibers
- Patent number 5,437,418
- Issue date Aug 1, 1995
- Weyerhaeuser Company
- Peter A. Graef
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Crosslinked cellulose products and method for their preparation
- Patent number 5,399,240
- Issue date Mar 21, 1995
- Weyerhaeuser Company
- Peter A. Graef
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Sized paper, process for producing same and use thereof
- Patent number 5,374,335
- Issue date Dec 20, 1994
- Eka Nobel AB
- Erik Lindgren
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Method and apparatus for crosslinking individualized cellulose fibers
- Patent number 5,366,591
- Issue date Nov 22, 1994
- Richard A. Jewell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Crosslinked cellulose products and method for their preparation
- Patent number 5,225,047
- Issue date Jul 6, 1993
- Weyerhaeuser Company
- Peter A. Graef
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Clay compositions and their use in paper making
- Patent number 5,223,098
- Issue date Jun 29, 1993
- Allied Colloids Limited
- Jean Cluyse
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Production of paper and paper products
- Patent number 5,194,120
- Issue date Mar 16, 1993
- Delta Chemicals
- Stephen Peats
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for the production of paper
- Patent number 5,127,994
- Issue date Jul 7, 1992
- EKA Nobel AB
- Hans E. Johansson
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Retention and drainage aid for alkaline fine papermaking process
- Patent number 5,126,014
- Issue date Jun 30, 1992
- Nalco Chemical Company
- Daniel K. Chung
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING PAPER AND CARDBOARD
- Publication number 20240263398
- Publication date Aug 8, 2024
- SNF Group
- Cyril BARRIERE
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for manufacture of paper, board or the like and use of the c...
- Publication number 20190218717
- Publication date Jul 18, 2019
- KEMIRA OYJ
- Matti HIETANIEMI
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Process for the production of paper
- Publication number 20130269894
- Publication date Oct 17, 2013
- Akzo Nobel N.V.
- Fredrik Solhage
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
METHOD FOR THE PRODUCTION OF PAPER, CARDBOARD AND CARD
- Publication number 20100282424
- Publication date Nov 11, 2010
- BASF Aktiengesellschaft
- Oliver Koch
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Process for the production of paper
- Publication number 20070151688
- Publication date Jul 5, 2007
- Akzo Nobel N.V.
- Fredrik Solhage
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Production of paper, board and cardboard
- Publication number 20050247420
- Publication date Nov 10, 2005
- Rainer Blum
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Method for manufacturing paper having variable characteristics
- Publication number 20020029861
- Publication date Mar 14, 2002
- Kenneth A. Krukonis
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Addition at a location where shear forces are avoided before sheet-forming

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method for manufacturing paper and cardboard

Method for manufacture of paper, board or the like and use of the c...

Process for the manufacture of paper and paperboard

Process for the manufacture of paper and paperboard

Process for the production of paper

Process for the production of paper

Method for the production of paper, cardboard and card

Production of paper, board and cardboard

Method for manufacturing paper having variable characteristics

Method and apparatus for crosslinking individualized cellulose fibers

Method for manufacturing colored stripped paper

Process for the production of paper

Method for reducing the polymer and bentonite requirement in paperm...

Process for the manufacture of paper

Wet-formed absorbent composite

Aqueous suspensions of poly(ethylene oxide) useful as a flocculent

Swollen starches as papermaking additives

Papermaking process

Aqueous suspensions of poly(ethylene oxide) useful as retention aid...

Colloidal composition and its use in the production of paper and pa...

Reactive cyclic N-sulfatoimides and cellulose crosslinked with the...

Apparatus for crosslinking individualized cellulose fibers

Crosslinked cellulose products and method for their preparation

Sized paper, process for producing same and use thereof

Method and apparatus for crosslinking individualized cellulose fibers

Crosslinked cellulose products and method for their preparation

Clay compositions and their use in paper making

Production of paper and paper products

Process for the production of paper

Retention and drainage aid for alkaline fine papermaking process

Patents Applicationslast 30 patents

METHOD FOR MANUFACTURING PAPER AND CARDBOARD

Method for manufacture of paper, board or the like and use of the c...

Process for the production of paper

METHOD FOR THE PRODUCTION OF PAPER, CARDBOARD AND CARD

Process for the production of paper

Production of paper, board and cardboard

Method for manufacturing paper having variable characteristics