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Carboxyl groups or derivatives thereof
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CPC
D21H17/43
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Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21H
PULP 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
D21H17/00
Non-fibrous material added to the pulp, characterised by its constitution Paper-impregnating material characterised by its constitution
Current Industry
D21H17/43
Carboxyl groups or derivatives thereof
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing anionic polymers and use as resistance agents...
Patent number
12,043,676
Issue date
Jul 23, 2024
S.P.C.M. SA
René Hund
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing multi-layer paper
Patent number
11,680,371
Issue date
Jun 20, 2023
Solenis Technologies, L.P.
Christoph Hamers
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Inorganic particle composite fiber, method for manufacturing same,...
Patent number
11,555,270
Issue date
Jan 17, 2023
Nippon Paper Industries Co., Ltd.
Moe Fukuoka
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Paper strength improving composition, manufacture thereof and use i...
Patent number
11,453,979
Issue date
Sep 27, 2022
Kemira Oyj
Yuping Luo
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Pulp molded product and method for manufacturing same
Patent number
11,434,606
Issue date
Sep 6, 2022
Daiken Industries, Ltd.
Tetsuya Uehara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Copolymer, aqueous solution comprising the copolymer and method for...
Patent number
11,274,397
Issue date
Mar 15, 2022
ARCHROMA IP GMBH
John Cowman
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Superabsorbent material sat (super absorbent tissue)
Patent number
10,844,545
Issue date
Nov 24, 2020
Gianfranco Palumbo
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Dry strength composition, its use and method for making of paper, b...
Patent number
10,781,556
Issue date
Sep 22, 2020
Kemira Oyj
Matti Hietaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dry strength agent composition and method for enhancing the dry str...
Patent number
10,704,201
Issue date
Jul 7, 2020
Ecolab USA Inc.
Yulin Zhao
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Compositions and methods for treating filler in papermaking
Patent number
10,669,672
Issue date
Jun 2, 2020
Ecolab USA Inc.
Qinglong Rao
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for treating starch in pulp, paper and board making processes
Patent number
10,640,923
Issue date
May 5, 2020
Kemira Oyj
Matti Hietaniemi
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Treated wood material
Patent number
10,201,909
Issue date
Feb 12, 2019
Dow Global Technologies LLC
Stephen W. King
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dispersion for producing abrasion-resistant surfaces
Patent number
10,113,269
Issue date
Oct 30, 2018
Kronoplus Technical AG
Dieter Dohring
B44 - DECORATIVE ARTS
Information
Patent Grant
Process for treating wood
Patent number
10,059,026
Issue date
Aug 28, 2018
Dow Global Technologies LLC
Xue Chen
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Crumple-resistant security sheet, a method of manufacturing such a...
Patent number
10,023,998
Issue date
Jul 17, 2018
ARIOWIGGINS SECURITY
Henri Rosset
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of increasing drainage performance of a pulp slurry during m...
Patent number
9,873,982
Issue date
Jan 23, 2018
Solenis Technologies, L.P.
John C. Harrington
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dispersible nonwoven
Patent number
9,512,546
Issue date
Dec 6, 2016
Rohm & Haas Company
Paul Nedwick
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for increasing paper strength
Patent number
9,347,181
Issue date
May 24, 2016
Kemira Oyj
Chen Lu
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
Production of paper, card and board
Patent number
8,753,479
Issue date
Jun 17, 2014
BASF SE
Anton Esser
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Anionic functional promoter and charge control agent with improved...
Patent number
8,425,724
Issue date
Apr 23, 2013
Kemira Oyj
Michael Ryan
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Unruptured, ionic, swollen starch for use in papermaking
Patent number
8,354,004
Issue date
Jan 15, 2013
Fpinnovations
Makhlouf Laleg
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
Retention and drainage in the manufacture of paper
Patent number
8,206,553
Issue date
Jun 26, 2012
Hercules Incorporated
Robert A. Gelman
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Anionic functional promoter and charge control agent with improved...
Patent number
8,070,914
Issue date
Dec 6, 2011
Kemira Oyj
Michael Ryan
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for producing paper, paperboard and cardboard having high dr...
Patent number
7,922,867
Issue date
Apr 12, 2011
BASF SE
Norbert Schall
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Bulky water-disintegratable cleaning article and process for produc...
Patent number
7,758,724
Issue date
Jul 20, 2010
Kao Corporation
Hiroyuki Akai
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Anionic functional promoter and charge control agent with improved...
Patent number
7,736,465
Issue date
Jun 15, 2010
Kemira Oyj
Michael Ryan
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Swollen starch-latex compositions for use in papermaking
Patent number
7,625,962
Issue date
Dec 1, 2009
FI Fpinnovations
Makhlouf Laleg
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Anionic copolymers prepared in an inverse emulsion matrix
Patent number
7,507,781
Issue date
Mar 24, 2009
Hercules Incorporated
Brian Walchuk
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
USE OF AN ANIONIC ADDITIVE TO IMPROVE DRY STRENGTH COMPOSITION PERF...
Publication number
20240263400
Publication date
Aug 8, 2024
ECOLAB USA INC.
David Steven JORDAN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
WET LAID PAPER AND PAPERBOARD PRODUCTS WITH HIGH WET STRENGTH AND M...
Publication number
20240218603
Publication date
Jul 4, 2024
FIRST QUALITY TISSUE, LLC
James E. Sealey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
A TREATMENT SYSTEM FOR MANUFACTURE OF PAPER, BOARD OR THE LIKE
Publication number
20240093433
Publication date
Mar 21, 2024
KEMIRA OYJ
Matti HIETANIEMI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR MANUFACTURING PAPER AND CARDBOARD
Publication number
20230295877
Publication date
Sep 21, 2023
S.P.C.M. SA
Gatien FAUCHER
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
NOVEL WATER-SOLUBLE POLYMER COMPLEXES IN THE FORM OF AN INVERSE EMU...
Publication number
20230243103
Publication date
Aug 3, 2023
S.P.C.M. SA
René HUND
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
N-VINYLLACTAM-CONTAINING POLYMERS FOR PAPERMAKING
Publication number
20220412008
Publication date
Dec 29, 2022
Solenis Technologies, L.P.
Qu-Ming Gu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR MANUFACTURING PAPER OR CARDBOARD
Publication number
20220356650
Publication date
Nov 10, 2022
S.P.C.M. SA
Cyril BARRIERE
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SYNTHETIC METHOD FOR THE PREPARATION OF RHEOLOGICAL MODIFYING POLYM...
Publication number
20210317249
Publication date
Oct 14, 2021
POLYANALYTIK INC.
Joseph A. Paquette
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING MULTI-LAYER PAPER
Publication number
20210222371
Publication date
Jul 22, 2021
SOLENIS TECHNOLOGIES CAYMAN, L.P.
Christoph HAMERS
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PAPER STRENGTH IMPROVING COMPOSITION, MANUFACTURE THEREOF AND USE I...
Publication number
20210189659
Publication date
Jun 24, 2021
Yuping LUO
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING ANIONIC POLYMERS AND USE AS RESISTANCE AGENTS...
Publication number
20210102008
Publication date
Apr 8, 2021
S.P.C.M. SA
René HUND
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PULP MOLDED PRODUCT AND METHOD FOR MANUFACTURING SAME
Publication number
20210054569
Publication date
Feb 25, 2021
DAIKIN INDUSTRIES, LTD.
Tetsuya UEHARA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
INORGANIC PARTICLE COMPOSITE FIBER, METHOD FOR MANUFACTURING SAME,...
Publication number
20200056325
Publication date
Feb 20, 2020
Nippon Paper Industries Co., Ltd.
Moe FUKUOKA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
COPOLYMER, AQUEOUS SOLUTION COMPRISING THE COPOLYMER AND METHOD FOR...
Publication number
20190382957
Publication date
Dec 19, 2019
ARCHROMA IP GMBH
John COWMAN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Dry strength composition, its use and method for making of paper, b...
Publication number
20190242065
Publication date
Aug 8, 2019
KEMIRA OYJ
Matti Hietaniemi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
COMPOSITIONS AND METHODS FOR TREATING FILLER IN PAPERMAKING
Publication number
20190055696
Publication date
Feb 21, 2019
ECOLAB USA INC.
Qinglong RAO
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SUPERABSORBENT MATERIAL SAT (SUPER ABSORBENT TISSUE)
Publication number
20190017225
Publication date
Jan 17, 2019
Gianfranco PALUMBO
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
DRY STRENGTH AGENT COMPOSITION AND METHOD FOR ENHANCING THE DRY STR...
Publication number
20180320316
Publication date
Nov 8, 2018
ECOLAB USA INC.
Yulin ZHAO
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Paper-Making Aid Composition and Process for Increasing Tensile Str...
Publication number
20180298556
Publication date
Oct 18, 2018
ECOLAB USA INC.
Na Xu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
TREATED POROUS MATERIAL
Publication number
20170274552
Publication date
Sep 28, 2017
DOW GLOBAL TECHNOLOGIES LLC
Xue Chen
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Application
METHOD OF INCREASING DRAINAGE PERFORMANCE OF A PULP SLURRY DURING M...
Publication number
20170101740
Publication date
Apr 13, 2017
SOLENIS TECHNOLOGIES, L.P.
John C. HARRINGTON
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR INCREASING PAPER STRENGTH
Publication number
20150144282
Publication date
May 28, 2015
KEMIRA OYJ
Chen Lu
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
USE IN PAPER COATINGS OF A MIXTURE OF A SECONDARY POLYMERIC DISPERS...
Publication number
20140251563
Publication date
Sep 11, 2014
BASF SE
Dirk Lawrenz
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
METHODS TO FORM AN IONOMER COATING ON A SUBSTRATE
Publication number
20130149930
Publication date
Jun 13, 2013
E I DU PONT DE NEMOURS AND COMPANY
Elliott Echt
B32 - LAYERED PRODUCTS
Information
Patent Application
PRODUCTION OF PAPER, CARD AND BOARD
Publication number
20120325420
Publication date
Dec 27, 2012
BASF SE
Anton Esser
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ANIONIC FUNCTIONAL PROMOTER AND CHARGE CONTROL AGENT WITH IMPROVED...
Publication number
20120035306
Publication date
Feb 9, 2012
KEMIRA OYJ
Michael Ryan
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
ANIONIC FUNCTIONAL PROMOTER AND CHARGE CONTROL AGENT WITH IMPROVED...
Publication number
20100193147
Publication date
Aug 5, 2010
Michael Ryan
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR PRODUCING PAPER, PAPERBOARD AND CARDBOARD HAVING HIGH DR...
Publication number
20100108279
Publication date
May 6, 2010
BASF SE
Norbert Schall
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
CRUMPLE-RESISTANT SECURITY SHEET, A METHOD OF MANUFACTURING SUCH A...
Publication number
20100078930
Publication date
Apr 1, 2010
ARJOWIGGINS SECURITY
Henri Rosset
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE