Homopolymers of cis-5-norbornene-2,3-dicarboxylic anhydrides

Details Homopolymers of cis-5-norbornene-2,3-dicarboxylic anhydrides Homopolymers of cis-5-norbornene-2,3-dicarboxylic anhydrides

1975-04-30

1977-03-15

Kight, III, John

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526230, 526281, C08F13400, C08F23400

Patent

active

040125750

ABSTRACT:
Novel homopolymers of the exo and endo cyclic adducts of maleic anhydride and cyclic conjugated dienes such as cyclopentadiene. The homopolymers are prepared by heating the cyclic adduct in the presence of a free radical catalyst, such as a peroxygen compound, at a temperature at which endo-exo isomerization does not occur during the reaction period and the catalyst has a half-life of no more than 2 hours.

REFERENCES:
patent: 3330815 (1967-07-01), McKeon et al.
patent: 3494897 (1970-02-01), Reding et al.

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