Cable semiconductive shield compositions
US6525119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Apr 3, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/202
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition comprising:(a) one or more copolymers selected from the group consisting of (I) a copolymer of ethylene and vinyl acetate containing about 10 to about 50 percent by weight of units of vinyl acetate; (II) a copolymer of ethylene and ethyl acrylate containing about 10 to about 50 percent by weight of units of ethyl acrylate; and (III) a copolymer of ethylene and butyl acrylate containing about 10 to about 50 percent by weight of units of butyl acrylate;(b) about 55 to about 200 parts by weight, based upon 100 parts by weight of component (a), of a linear copolymer of ethylene and an alpha-olefin having 3 to 12 carbon atoms, and a density of 0.870 to 0.944 grama per cubic centimeter;(c) about 1 to about 50 parts by weight, based upon 100 parts by weight of component (a), of an organopolysiloxane;(d) about 10 to about 350 parts by weight, based upon 100 parts by weight of component (a), of carbon black; and(e) from 0 to about 2 parts by weight of an organic peroxide, the composition effective for being cross-linked, without a catalyst, with water to provide a cross linked composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.