Process for the preparation of crosslinked, unsaturated polymers

Details Process for the preparation of crosslinked, unsaturated polymers Process for the preparation of crosslinked, unsaturated polymers

1981-04-30

1982-09-07

Welsh, Maurice J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 73, 528 74, 528 75, C08G 1834

Patent

active

043485111

ABSTRACT:
Novel crosslinked unsaturated polymers, which have better properties than conventional crosslinked unsaturated polymers are obtained by reacting a .beta.-aminocrotonic acid ester, .beta.-aminocrotononitrile or .beta.-aminocrotonamide with a diisocyanate or polyisocyanate and a polyol, for example at temperatures of between 50.degree. and 180.degree. C.

REFERENCES:
patent: 3925268 (1975-12-01), Rosemund et al.
patent: 4089845 (1978-05-01), Haug et al.
R. Kubens et al., Kunststoffe, 69, 455 (1979).
Liebigs Ann, 213, 171 (1882).
J. Tafel, Ber. 20, 244 (1887).
J. Prakt Chem., 78, 497 (1908).
E. Benary, Ber., 60, 1826 (1927).

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