Tertiary amine polyamidoamine-epihalohydrin polymers

Details Tertiary amine polyamidoamine-epihalohydrin polymers Tertiary amine polyamidoamine-epihalohydrin polymers

1998-05-04

2000-08-29

Woodward, Ana

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525420, C08L 7700

Patent

active

061110329

ABSTRACT:
A process for preparing a tertiary amine polyamidoamine-epihalohydrin polymer having a low level of epihalohydrin byproducts. In this process a tertiary amine polyamidoamine prepolymer is reacted with an epihalohydrin; the molar ratio, of epihalohydrin to tertiary amine groups in the polyamidoamine prepolymer, is less than 1.0 to 1.0. The reaction is further conducted at a pH of from about 7.5 to less than about 9.0, in the presence of a nonhalide acid, and at a temperature of not more than about 35.degree. C.

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An English Language Abstract of JP 43-28476.
An English Language Abstract of German Patent No. 1,595,336.

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