Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1977-12-08
1980-05-13
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C08F22008
Patent
active
042029554
ABSTRACT:
Novel 2:1 copolymers of maleic anhydride and cyclic conjugated dienes such as cyclopentadiene. The saturated copolymers are prepared by heating the cyclic diene and maleic anhydride in the presence of a free radical precursor, such as a peroxygen compound, at a temperature at which the catalyst half life is no more than 2 hours.
REFERENCES:
patent: 3838113 (1974-09-01), Smallman
patent: 3957736 (1976-05-01), Tsuchiya
Borg-Warner Corporation
Michl Paul R.
Schlott Richard J.
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