Sizing agents for paper and a process for the production thereof

Details Sizing agents for paper and a process for the production thereof Sizing agents for paper and a process for the production thereof

1981-12-07

1983-04-26

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524802, 524811, 526272, 526315, 428514, 1621682, 1621686, 1621687, C08F 832

Patent

active

043813674

ABSTRACT:
Paper sizing agents in the form of an aqueous preparation of maleic acid anhydride copolymers of which the anhydride groups had been reacted either with organic or inorganic bases or with primary-tertiary diamines and the reaction products subsequently reacted with epichlorohydrin or with inorganic or organic acids to form salts, the copolymers being made up of polymerised units of

REFERENCES:
patent: 4221886 (1980-09-01), Topfl
patent: 4267091 (1981-05-01), Geelhaar
patent: 4298513 (1981-11-01), Distler

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