Olefinic thermoplastic elastomer composition
US6087431A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1234
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An olefinic thermoplastic elastomer composition, which comprises a mixture comprising: PA1 (1) 100 parts by weight of an olefinic elastomer comprising ethylene and at least one .alpha.-olefin having 6 to 12 carbon atoms, and having an .alpha.-olefin copolymerization ratio of 20 to 30% by weight, a density of 0.8 to 0.9 g/cm.sup.3 and a molecular weight distribution (Mw/Mn) of less than 3.0 in terms of a ratio of weight-average molecular weight (Mw) to number-average molecular weight (Mn) calculated by gel permeation chromatography (GPC), PA1 (2) 5 to 90 parts by weight of a propylenic polymer, and PA1 (3) 5 to 250 parts by weight of an oil for rubber, the mixture being crosslinked by a radical initiator or both of a radical initiator and a crosslinking promoter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.