Flame retardant cable
US5698323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Mar 28, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/294
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cable comprising one or more electrical conductors or communications media, or a core of two or more electrical conductors or communications media, each electrical conductor, communications medium, or core being surrounded by a composition, which is essentially halogen and antimony free, comprising: PA1 (a) a copolymer of ethylene and an unsaturated ester comonomer selected from the group consisting of: PA2 (i) an alkyl acrylate; PA2 (ii) an alkyl methacrylate; and PA2 (iii) a vinyl carboxylate PA2 wherein (A) the alkyl group has 1 to 8 carbon atoms and the carboxylate group has 2 to 8 carbon atoms; PA3 (B) the copolymer is, optionally, modified with an anhydride of an unsaturated aliphatic diacid having 4 to 20 carbon atoms; PA3 (C) the copolymer has an ester content in the range of about 5 to about 50 percent based on the weight of the copolymer and a melt index in the range of about 0.5 to about 50 grams per 10 minutes; and, for each 100 parts by weight of component (a), PA1 (b) about 50 to about 300 parts by weight of magnesium hydroxide, coated or uncoated, or alumina trihydrate: PA1 (c) about 1 to about 25 parts by weight of zinc oxide; and PA1 (d) about 1 to about 15 parts…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.