Copolymers of 5-norbornene 2,3-dicarboxylic anhydride and maleic

Details Copolymers of 5-norbornene 2,3-dicarboxylic anhydride and maleic Copolymers of 5-norbornene 2,3-dicarboxylic anhydride and maleic

1977-04-04

1978-11-21

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260 304R, 260 328R, 526 15, 526227, 526230, C08F22008, C08F23400

Patent

active

041267389

ABSTRACT:
Novel copolymers of maleic anhydride and the endo and exo cyclic adducts of maleic anhydride and cyclic conjugated dienes such as cyclopentadiene. The copolymers are prepared by heating either of the cyclic adducts and maleic anhydride in the presence of a free radical precursor, such as a peroxygen compound, at a temperature at which endo-exo isomerization of the adduct occurs.

REFERENCES:
patent: 2359038 (1944-09-01), Hopff et al.
patent: 3838113 (1974-09-01), Smallman
J.A.C.S., Craig, 73, 4889, (1951).
J.A.C.S., Ganter et al., 87, 2771, (1965).
Tetrahedron Letters, Mironon et al., 5823, (1966).

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