Synthetic rubber dispersions containing carboxyl groups, a proce

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

1981-12-04

1984-04-03

Wong, Jr., Harry

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...

524156, 524157, 524166, 524421, 524423, 524565, 524575, 524599, 524745, 524787, 524796, 524821, 526304, 526317, C08F21210, C08F21234, C08L 000

Patent

active

044408951

ABSTRACT:
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.

REFERENCES:
patent: 3711437 (1973-01-01), Wielan et al.
patent: 3781236 (1973-12-01), Bassham et al.
patent: 3793244 (1974-02-01), Megee et al.
patent: 3795647 (1974-03-01), Duggan
patent: 4064081 (1977-12-01), McCoy et al.
patent: 4130691 (1978-12-01), Canard
patent: 4359543 (1982-11-01), Hegedus et al.

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