Copolymers, having a uniform structure, of cyclic dienes and the

Details Copolymers, having a uniform structure, of cyclic dienes and the Copolymers, having a uniform structure, of cyclic dienes and the

1977-11-21

1978-11-21

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526283, 526317, 526318, C08F22200, C08F22208

Patent

active

041267397

ABSTRACT:
Copolymers, having a uniform structure, of cyclic dienes are obtained by heating a mixture of from 35 to 96% by weight of cyclopentadiene, dicyclopentadiene and/or methyldicyclopentadiene, which may or may not be partially replaced by methylcyclopentadiene or tricyclopentadiene or methyltricyclopentadiene, from 1 to 30% by weight of maleic anhydride, maleic acid or a monoalkyl maleate, which maleic acid or maleic acid derivatives may be partially replaced by other .alpha.,.beta.-olefinically unsaturated monocarboxylic acids or dicarboxylic acids of 3 to 5 carbon atoms, and from 3 to 45% by weight of one or more vinyl-aromatics to 230.degree.-320.degree. C, during which heating the mixture does not remain at from 30.degree. to 230.degree. C for more than 5 hours, and preferably for not more than 2 hours. The copolymers may be used as binders for printing inks and coatings, and as additives in adhesives.

REFERENCES:
patent: 3442872 (1969-05-01), Korbanka et al.
patent: 3887513 (1975-06-01), Fritze et al.
patent: 3890285 (1975-06-01), Sumita et al.

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