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...
Patent
1987-12-21
1989-10-03
Schofer, Joseph L.
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...
524500, 524522, C08J 5100
Patent
active
048717975
ABSTRACT:
The invention provides a stabilizer for an aqueous dispersion of an acrylic polymer that is obtained by successive copolymerization in random order of a monomer mixture A consisting of particular amounts of styrene or methyl styrene, acrylic acid or methacrylic acid, and optionally another comonomer, and a monomer mixture B consisting of particular amounts of styrene or methyl styrene, a (cyclo)alkyl methacrylate having 1-12 carbon atoms in the (cyclo)alkyl group, and optionally another comonomer, in the presence of a particular amount of a polybutadiene having a number average molecular weight of 1500-10000, the carboxylic acid groups from the (meth)acrylic groups being at least partly ionized. The invention also pertains to an aqueous dispersion of an acrylic polymer thus stabilized.
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patent: 4622358 (1986-11-01), Pennewiss et al.
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Akzo N.V.
Reddick J. M.
Schofer Joseph L.
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