Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1974-09-19
1977-06-07
Henderson, Jr., Christopher A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
260874, 526 57, 526 91, 526136, 526142, 526143, 526144, 526250, 526251, 526259, 526263, 526272, C08F 500, C08F 142
Patent
active
040284824
ABSTRACT:
Polymers or copolymers of acid anhydride type norbornene derivatives and a method of preparing the same, said polymers or copolymers being formed with a reduced viscosity of 0.1 to 20 by ring-opening polymerization of acid anhydride type norbornene derivatives having at least one carboxylic anhydride group or a mixture of said norbornene derivatives and cycloolefins.
REFERENCES:
patent: 3494897 (1970-02-01), Reding
patent: 3546183 (1970-12-01), Vergne
patent: 3557062 (1971-01-01), Vergne
patent: 3856758 (1974-12-01), Ueshima
patent: 3859265 (1975-01-01), Hepworth
Kobayashi Shoichi
Tanaka Yasuzi
Ueshima Takashi
Henderson, Jr. Christopher A.
Palmer Carroll F.
Showa Denko Kabushiki Kaisha
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