EP 0349935 A3 19910508 - AQUEOUS SOLUTIONS OF POLYAMIDOAMINE-EPICHLORHYDRINE RESINES, PROCESS FOR PREPARING THE SAME AND USE
Title (en)
AQUEOUS SOLUTIONS OF POLYAMIDOAMINE-EPICHLORHYDRINE RESINES, PROCESS FOR PREPARING THE SAME AND USE
Publication
Application
Priority
DE 3822490 A 19880702
Abstract (en)
[origin: EP0349935A2] Storage-stable, aqueous resin solution having a pH of at most 7, containing as the resin a water-dilutable polyamido-amine/epichlorohydrin resin (A) obtained by reacting a water-dilutable, basic polyamido-amine (B), consisting of an acid component (B1), and an amine component (B2) with epichlorohydrin (C), the content of organically bound chlorine in the resin (A) being at most 4% by weight and the component (B2) - if the acid component (B1) is an aliphatic or aromatic carboxylic acid or a functional derivative thereof, if appropriate in a mixture with an aminocarboxylic acid or lactams thereof - consisting of a mixture of polyamines and alkanolmonoamines. <??>The invention also relates to a process for the preparation of these products and to their use, especially for increasing the wet strength of paper.
IPC 1-7
IPC 8 full level
D21H 17/55 (2006.01); D21H 21/20 (2006.01)
CPC (source: EP US)
D21H 17/55 (2013.01 - EP US); D21H 21/20 (2013.01 - EP US)
Citation (search report)
[A] EP 0131200 A2 19850116 - HOECHST AG [DE]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0349935 A2 19900110; EP 0349935 A3 19910508; EP 0349935 B1 19930609; AT E90405 T1 19930615; DE 3822490 A1 19900104; DE 58904602 D1 19930715; ES 2058408 T3 19941101; US 5019606 A 19910528
DOCDB simple family (application)
EP 89112049 A 19890701; AT 89112049 T 19890701; DE 3822490 A 19880702; DE 58904602 T 19890701; ES 89112049 T 19890701; US 37446789 A 19890630