Modified polypropylene, process for making and article made from the same
US4950720A · kind A · utility
53Cited by
27References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1988 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Apr 29, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A modified polypropylene having a substantially isotactic homopolypropylene and a propylene/olefin random copolymer, the modified polypropylene including up to about 50 chain disruptors per 1000 propylene repeat units. The chain disruptors are racemic polypropylene diads and olefin, the olefin being incorporated into the high end of the molecular weight distribution of the modified polypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.