Olefin-based resin composition, method of making it and electrical wire covered with it
US6866932B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 29, 2001 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Aug 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2967
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An olefin-based resin composition contains (a) 39-94 parts by weight of a propylene homopolymer or propylene-ethylene copolymer of at least 50 wt. % propylene content, having a melt-flow rate of 0.1-5 g/10 min, (b) 1-20 parts by weight of a polypropylene modified with 0.1-10% by weight of an acid anhydride, (c) 5-60 parts by weight of a styrene-based polymeric elastomer modified with 0.1-10% by weight of an acid anhydride, the total of components (a), (b) and (c) being 100 parts by weight, and (d) 30-200 parts by weight of a metal hydroxide. This halogen-free resin composition has a good balance of properties such as wear resistance, flame resistance, tensile properties and flexibility, which are required for the covering material of an electrical wire for an automobile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.