Global Patent Index - EP 0777692 B1

EP 0777692 B1 19980401 - PAPER-SIZING AGENTS CONTAINING AQUEOUS, SOLVENT-FREE DISPERSIONS OF CATIONIC POLYMERS AND METHOD OF PREPARING SIZED PAPER BY USING THESE AGENTS

Title (en)

PAPER-SIZING AGENTS CONTAINING AQUEOUS, SOLVENT-FREE DISPERSIONS OF CATIONIC POLYMERS AND METHOD OF PREPARING SIZED PAPER BY USING THESE AGENTS

Title (de)

WÄSSRIGE, LÖSUNGSMITTELFREIE DISPERSIONEN VON KATIONISCHEN POLYMERISATEN ENTHALTENDE PAPIERLEIMUNGSMITTEL UND VERFAHREN ZUR HERSTELLUNG VON GELEIMTEM PAPIER UNTER VERWENDUNG DIESER MITTEL

Title (fr)

PRODUITS DE COLLAGE DE PAPIER, CONTENANT DES DISPERSIONS AQUEUSES SANS SOLVANT DE POLYMERES CATIONIQUES, ET PROCEDE DE FABRICATION DE PAPIER COLLE AU MOYEN DE CES PRODUITS

Publication

EP 0777692 B1 19980401 (DE)

Application

EP 95929873 A 19950816

Priority

  • DE 4430069 A 19940825
  • EP 9503232 W 19950816

Abstract (en)

[origin: US5954921A] PCT No. PCT/EP95/03232 Sec. 371 Date Feb. 25, 1997 Sec. 102(e) Date Feb. 25, 1997 PCT Filed Aug. 16, 1995 PCT Pub. No. WO96/06119 PCT Pub. Date Feb. 29, 1996The present invention relates to agents for the pulp and/or surface sizing of paper, which comprise aqueous, solventless dispersions of cationic polymers, and to a process for sizing paper by using said agent. The sizing agents according to the present invention which can be used both in pulp and surface sizing obtain as active substance copolymers of a) 30-70 mole-% of a monomer I with b) 70-30 mole-% of a monomer II, and optionally c) 0-20 mole-% of C8-C30 monoolefins, and d) 0-10 mole-% of further monomers copolymerizable with a), b), and optionally c), the sum of monomers a), b), c), and d) amounting to 100 mole-%.

IPC 1-7

C08F 220/18; D21H 17/37

IPC 8 full level

C08F 220/18 (2006.01); D21H 17/37 (2006.01); D21H 21/16 (2006.01)

CPC (source: EP US)

D21H 17/37 (2013.01 - EP US); D21H 21/16 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

US 5954921 A 19990921; AT E164599 T1 19980415; CA 2194602 A1 19960229; DE 4430069 A1 19960229; DE 59501788 D1 19980507; EP 0777692 A1 19970611; EP 0777692 B1 19980401; FI 970770 A0 19970224; FI 970770 A 19970224; NO 970833 D0 19970224; NO 970833 L 19970224; WO 9606119 A1 19960229

DOCDB simple family (application)

US 79333297 A 19970225; AT 95929873 T 19950816; CA 2194602 A 19950816; DE 4430069 A 19940825; DE 59501788 T 19950816; EP 9503232 W 19950816; EP 95929873 A 19950816; FI 970770 A 19970224; NO 970833 A 19970224