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1. (WO2001083887) ALDEHYDE-CONTAINING POLYMERS AS WET STRENGTH ADDITIVES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2001/083887 International Application No.: PCT/NL2001/000343
Publication Date: 08.11.2001 International Filing Date: 04.05.2001
Chapter 2 Demand Filed: 30.11.2001
IPC:
C08B 15/02 (2006.01) ,C08B 15/04 (2006.01) ,C08B 31/18 (2006.01) ,D21H 17/25 (2006.01) ,D21H 17/28 (2006.01) ,D21H 17/29 (2006.01) ,D21H 21/20 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
15
Preparation of other cellulose derivatives or modified cellulose
02
Oxycellulose; Hydrocellulose; Cellulose hydrate
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
15
Preparation of other cellulose derivatives or modified cellulose
02
Oxycellulose; Hydrocellulose; Cellulose hydrate
04
Carboxycellulose, e.g. prepared by oxidation with nitrogen dioxide
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
31
Preparation of chemical derivatives of starch
18
Oxidised starch
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17
Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20
Macromolecular organic compounds
21
of natural origin; Derivatives thereof
24
Polysaccharides
25
Cellulose
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17
Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20
Macromolecular organic compounds
21
of natural origin; Derivatives thereof
24
Polysaccharides
28
Starch
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17
Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20
Macromolecular organic compounds
21
of natural origin; Derivatives thereof
24
Polysaccharides
28
Starch
29
cationic
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
21
Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties
14
characterised by function or properties in or on the paper
18
Reinforcing agents
20
Wet strength agents
Applicants:
SCA HYGIENE PRODUCTS ZEIST B.V. [NL/NL]; P.O. Box 360 NL-3700 AJ Zeist, NL (AllExceptUS)
THORNTON, Jeffrey, Wilson [US/NL]; NL (UsOnly)
VAN BRUSSEL-VERRAEST, Dorine, Lisa [BE/NL]; NL (UsOnly)
BESEMER, Arie [NL/NL]; NL (UsOnly)
SANDBERG, Sussan [SE/SE]; SE (UsOnly)
Inventors:
THORNTON, Jeffrey, Wilson; NL
VAN BRUSSEL-VERRAEST, Dorine, Lisa; NL
BESEMER, Arie; NL
SANDBERG, Sussan; SE
Agent:
JORRITSMA, Ruurd; Nederlandsch Octrooibureau Scheveningseweg 82 P.O. Box 29720 NL-2502 LS The Hague, NL
Priority Data:
00201630.104.05.2000EP
00201693.911.05.2000EP
Title (EN) ALDEHYDE-CONTAINING POLYMERS AS WET STRENGTH ADDITIVES
(FR) POLYMERES CONTENANT DES ALDEHYDES UTILISES COMME AGENTS DE RESISTANCE HUMIDE
Abstract:
(EN) The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.
(FR) La présente invention concerne l'utilisation d'un polymère comme agent de résistance humide, soluble dans l'eau ou dispersible dans l'eau, qui possède un poids moléculaire d'au moins 800, qui contient au moins 5 groupes aldéhyde par molécule et au moins 1 groupe carboxyle par molécule, le rapport des groupes aldéhyde sur les groupes carboxyle étant supérieur à 0,75/1. Cette invention concerne aussi de nouveaux dérivés cationiques de celui-ci.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1278913AU2001055111