Olefin thermoplastic elastomer composition
US7094828B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2002 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Jul 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An olefin thermoplastic elastomer composition which is superior in the resistance to oils, heat resistance, formability and flexibility is provided, said elestomer composition comprising the components(A) 40–90 parts by weight of a polypropylene resin having a melt flow rate (determined at 230 ° C. under a load of 2.16 kg according to ASTM D 1238) of 0.1–5 g/10 minutes,(B) 10–60 parts by weight of a copolymer rubber based on olefin, the contents of the components (A) and (B) summing up to 100 parts by weight, and(C) 20–150 parts by weight of a softener,wherein the composition is in such a cross-linked state that the gel content thereof amounts to 97% by weight or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.