Thermoplastic elastomer composition
US4722973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Apr 2, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides a thermoplastic elastomer composition obtained by blending (A) a hard segment comprising a low-density ethylene-.alpha.-olefin copolymer formed by copolymerizing ethylene with an .alpha.-olefin by the use of a specific catalyst and characterized by specifically defined properties and (B) a soft segment comprising an ethylene-.alpha.-olefin copolymer rubber, or obtained by partial cross-linking of the resulting blend. This elastomer composition has characteristic features such as high flexibility, good fluidity, excellent tensile properties, good thermal resistance and oil resistance and low permanent strain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.