Thermoplastic elastomer compositions
US4822855A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Aug 4, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic elastomer composition prepared by partially crosslinking a composition comprising the following components (A), (B) and (C): PA1 (A) 30-70 parts by weight of an ethylene/.alpha.-olefin copolymer prepared by copolymerizing ethylene and an .alpha.-olefin having 3 to 12 carbon atoms in the presence of a catalyst comprising a solid component and an organoaluminum compound which solid component contains at least magnesium and titanium, said ethylene/.alpha.-olefin copolymer having the following properties (I) to (IV): ______________________________________ (I) Melt index 0.01-100 g/10 min (II) Density 0.860-0.910 g/cm.sup.3 (III) Maximum peak not lower than 100.degree. C. temperature as measured according to a differential scanning calorimetry (DSC) (IV) Insolubles in boiling not less than 10 wt. % n-hexane ______________________________________ PA1 (B) 70-30 parts by weight of a propylene polymer; and PA1 (C) 70-200 parts by weight, based on 100 parts by weight of the components (A) and (B), of an ethylene/.alpha.-olefin copolymer rubber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.