Thermoplastic elastomer composition with high resistance to thermal deterioration
US6720376B2 · kind B2 · utility
22Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2001 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Nov 14, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a thermoplastic elastomer composition which includes and comprises 10 to 60 parts by weight of a polyolefin (A), 30 to 87 parts by weight of a crosslinked rubber (B), 3 to 50 parts by weight of a softening agent (C) [the total amount of (A), (B) and (C) being 100 parts by weight] and 0.02 to 0.3 part by weight of a phenolic heat stabilizer (D) and which retains an elongation value at break by 80% or more, after aging for 500 hours in an air oven of 130° C., of the value before the aging; and relates to a manufacturing method thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.