Global Patent Index - EP 0357866 B1

EP 0357866 B1 19931215 - Cationic sizing agent for paper.

Title (en)

Cationic sizing agent for paper.

Title (de)

Kationische Leimungsmittel für Papier.

Title (fr)

Agent d'encollage cationique pour le papier.

Publication

EP 0357866 B1 19931215 (DE)

Application

EP 89106679 A 19890414

Priority

DE 3826825 A 19880806

Abstract (en)

[origin: EP0357866A2] The present invention relates to stable aqueous colloid-disperse solutions of the salt of copolymers built up from the monomers N,N-dimethylaminoethyl acrylate and/or methacrylate and of the methacrylate and/or acrylate of a C10- to C22-fatty alcohol, acrylic acid and/or methacrylic acid and methyl acrylate and/or methacrylate. The copolymers can be prepared by solution polymerisation initiated by free radicals. They display a strong sizing action even at a low concentration and are particularly stable towards electrolytes.

IPC 1-7

D21H 17/45

IPC 8 full level

D21H 17/44 (2006.01); D21H 17/45 (2006.01)

CPC (source: EP)

D21H 17/44 (2013.01)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0357866 A2 19900314; EP 0357866 A3 19900328; EP 0357866 B1 19931215; AT E98719 T1 19940115; DE 58906423 D1 19940127; ES 2048779 T3 19940401

DOCDB simple family (application)

EP 89106679 A 19890414; AT 89106679 T 19890414; DE 58906423 T 19890414; ES 89106679 T 19890414