Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1989-06-30
1991-05-28
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523416, 523417, 523418, C08K 6300
Patent
active
050196065
ABSTRACT:
Aqueous solutions of polyamidoamine-epichlorohydrin resins and preparation and use thereof.
A stable aqueous resin solution having a pH of not more than 7 and containing as the resin a water-thinnable polyamidoamine-epichlorohydrin resin (A) obtained by reaction of a water-thinnable basic polyamidoamine (B) comprising an acid component (B.sub.1) and an amine component (B.sub.2) with epichlorohydrin (C), the level of organically bound chlorine in the resin (A) being not more than 4% by weight.
The present invention further relates to a process for preparing these products and to the use thereof in particular for increasing the wet strength of paper.
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Kamutzki Walter
Marten Manfred
Hoechst AG
Michl Paul R.
Rogers Christopher P.
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