Synthetic rubber dispersions containing carboxyl groups, a...

Details Synthetic rubber dispersions containing carboxyl groups, a... Synthetic rubber dispersions containing carboxyl groups, a...

C - Chemistry, Metallurgy

08

F

400/9142

C08F 2/26 (2006.01) C08F 236/06 (2006.01) C08F 236/10 (2006.01)

Patent

CA 1183625

SYNTHETIC RUBBER DISPERSIONS CONTAINING CARBOXYL GROUPS, A PROCESS FOR THEIR PREPARATION AND THEIR USE Abstract of the Disclosure Synthetic rubber dispersions containing carboxyl groups, free from specks and with little tendency to foaming, with advantages for their technical application contain a copolymer of 0.3 to 1.0 parts by weight of itaconic acid and 99.0 to 99.7 parts by weight of a mixture of 10 to 90 parts by weight of one or more acyclic conjugated dienes having 4 to 9 carbon atoms and 10 to 90 parts by weight of one or more aryl vinyl monomers having 8 to 12 carbon atoms and/or (meth)acrylonitrile, in which the quantity of (meth)acrylonitrile is at most 50 parts by weight and wherein up to 25 parts by weight of the non-dissociating monomers may optionally be replaced by one or more other non-dissociating copolymerizable monomers, which dispersions are stabilized with 0.05 to 0.5 % by weight, based on the copolymer, of an anionic emulsifier.

392046

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