Polypropylene compositions and film thereof
US5641828A · kind A · utility
43Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Sep 15, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2314/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polypropylene composition comprising 100 parts by weight of a crystalline propylene polymer having a molecular weight distribution (Mw/Mn) of less than 5.0 and from 0.0001 to 1.0 part by weight of a crystal nucleating agent, the composition having a crystallization temperature at least 1.5.degree. C. higher than the crystallization temperature of the crystalline propylene polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.