Polypropylene composition
US5874505A · kind A · utility
60Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Nov 28, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polypropylene composition comprising 20 to 95% by weight of a stereoregular polypropylene characterized by the specified physical properties determined from .sup.13 C NMR spectra and 5 to 80% by weight of an .alpha.-olefin copolymer comprising 10 to 90% by weight of an .alpha.-olefin and 10 to 90% by weight of at least one of other .alpha.-olefins. The polypropylene composition demonstrates good balance of rigidity and impact resistance, high heat resistance and high toughness, when used as molding materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.