Polyolefin compositions having improved low temperature toughness
US6372847B1 · kind B1 · utility
82Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 2000 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | May 10, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/0815
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are blends of a propylene-based polymer, an elastomer, and optionally an ethylene-based polymer, having improved low temperature toughness. The elastomer is preferably a copolymer of ethylene, one or more C3-C20 &agr;-olefin comonomers, and optionally one or more non-conjugated diene comonomers, having a MLRA/ML ratio of at least 8 and an ethylene content of from 74 to 95 mole percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.