Elastomer with improved high temperature characteristics
US4753989A · kind A · utility
2Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1987 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Mar 25, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A soft thermoplastic, elastomeric alloy containing a thermoplastic, elastomeric block copolymer material, a polyethylene, and a polyphenylene ether material, prepared by blending in an extruder with an L/D ratio equal to or greater than 30 to 1. The alloy comprises a blend of from about 80 to 98% thermoplastic, elastomeric block copolymer material; from about 1 to 10% by weight of low melt index, highly crystalline polyethylene; and from about 1 to 10% by weight of polyphenylene ether. The material demonstrates excellent creep resistance at elevated temperatures as well as a variety of other excellent physical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.