Copolymer acting as thickening agent for aqueous preparations ha

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526258, 526260, 526313, 526317, 5263171, 5263182, 52631841, 5263185, 5263296, 526333, C08F 2006, C08F 2608, C08F11612

Patent

active

050861425

ABSTRACT:
A copolymer is disclosed which acts as a thickening agent for aqueous preparations having a pH of more than 5.5. The copolymer is obtainable by emulsion polymerization in an aqueous medium, at a pH of 2.5 to 5, in the presence of an initiator forming free radicals, at a temperature of 60.degree. to 95.degree. C. of

REFERENCES:
patent: 4338239 (1982-07-01), Dammann
patent: 4384096 (1983-05-01), Sonnabend
patent: 4892916 (1990-01-01), Hawe

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