Ethylene copolymer and process for the production thereof
US4871819A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1985 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Jun 28, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.