Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1985-06-28
1989-10-03
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
5262925, C08F25902, C08F25908
Patent
active
048718190
ABSTRACT:
A copolymer of ethylene and an ethylenically .alpha.,.beta.-unsaturated acid halogenated phenyl ester represented by the formula (1): ##STR1## (wherein R is hydrogen or a methyl group, X is a halogen atom, Y is an alkyl group having 4 to 18 carbon atoms, n is 0 or 1, m is an integer of 1 to 5, and l is 0 or an integer of 1 to 4), wherein the halogenated phenyl ester group unit content is about 0.005 to about 10 mol %. This copolymer is excellent in dielectric breakdown characteristics and flexibility, and its excellent performance can be maintained over a long period of time. Thus, it is useful as a superhigh voltage electric wire cable insulative material.
REFERENCES:
patent: 3210326 (1965-10-01), Tousignant
patent: 4211730 (1980-07-01), Vollkommer
Ishino Iwao
Oonishi Akiyoshi
Ozeki Yuji
Shimada Takeo
Michl Paul R.
Mitsubishi Petrochemical Co. Ltd.
RoDee C. D.
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