Alternating copolymers, a process for their preparation, and a m

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526271, 526298, 526300, 526312, 5262196, C08F22606, C08F22204

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active

049887874

ABSTRACT:
The invention relates to alternating copolymers having the formula ##STR1## wherein one of R.sup.1, R.sup.2, and R.sup.3 in each repeating unit is hydrogen and the others of R.sup.1, R.sup.2, and R.sup.3 in each repeating unit are CN or COOR.sup.5, wherein R5 is C.sub.1 -C.sub.8 alkyl; and n is from 10 to 5,000. This invention further relates to a process for preparing such alternating copolymers by copolymerization of appropriate alkenyl isocyanates and electron deficient olefins.

REFERENCES:
patent: 2326287 (1943-08-01), Coffman
patent: 2334476 (1943-11-01), Coffman
patent: 2606892 (1952-08-01), Kropa
patent: 3943112 (1976-03-01), Middleton
patent: 3965074 (1976-06-01), Middleton
patent: 4351755 (1982-09-01), Brixius
patent: 4436855 (1984-03-01), Brixius

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