Copolymers of polyorganosiloxane, polyisobutylene, and alkyl acr

Details Copolymers of polyorganosiloxane, polyisobutylene, and alkyl acr Copolymers of polyorganosiloxane, polyisobutylene, and alkyl acr

1997-01-03

1998-03-24

Marquis, Melvyn I.

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...

524837, 526279, C08L 4300

Patent

active

057313792

ABSTRACT:
Method of making copolymers of (i) an acrylic or methacrylic-functional polyisobutylene macromonomer, (ii) a polydiorganosiloxane macromonomer, and optionally (iii) a radical polymerizable monomer such as an alkyl acrylate or alkyl methacrylate. The copolymers are prepared by copolymerizing the monomers in a miniemulsion using a free radical initiator at high temperature. In the method, the monomers are mixed with a surfactant(s) and optionally a cosurfactant(s), and subjected to high shear.

REFERENCES:
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patent: 5371147 (1994-12-01), Spinelli et al.
patent: 5387632 (1995-02-01), Lai et al.
Journal of Applied Polymer Science, vol. 43, pp. 1059-1066, 1991.
Journal of Polymer Science, vol. 21, pp. 1033-1044, 1983.
J.M.S., Pure Applied Chem., A33 (2), pp. 117-131, 1996.

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