Copolymers and preparational method therefor

Details Copolymers and preparational method therefor Copolymers and preparational method therefor

1974-06-26

1976-08-24

Bleutge, John C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 285AV, 260 285AS, 260888, 260896, C08F 1010, C08L 700

Patent

active

039766071

ABSTRACT:
A solid, homogeneous and essentially random copolymer of styrene and isobutylene having a number average molecular weight of from about 1000 to about 4000, a heterogeneity index of from about 1.50 to about 2.25 and a styrene content of from about 40 to about 90 weight percent with its higher molecular weight fractions having a higher styrene content than the average styrene content of the copolymer.

REFERENCES:
patent: 2213423 (1940-09-01), Wiezevich
patent: 2572959 (1951-10-01), Sparks et al.
patent: 2631139 (1953-03-01), Mahan
patent: 3835079 (1974-09-01), Scardiglia

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