Propylene polymer compositions and uses thereof
US8329824B2 · kind B2 · utility
2Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2004 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | May 12, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a propylene polymer composition having excellent transparency, flexibility, heat resistance, scratch resistance and rubber elasticity with a good balance. The propylene polymer composition comprises 1 to 40 parts by weight of isotactic polypropylene (i) and 60 to 99 parts by weight of a propylene/ethylene/α-olefin copolymer (ii) which contains 45 to 89% by mol of a propylene component, 10 to 25% by mol of an ethylene component, and optionally, 0 to 30% by mol of constituent units (a) derived from an α-olefin of 4 to 20 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.