Impact modification of polypropylene with styrene/isoprene tetrablock copolymers
US5492967A · kind A · utility
5Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions consisting essentially of from 60% to 95% by weight of the polymer components of a high flow polypropylene and from 40% to 5% by weight of a polystyrene-hydrogenated polyisoprene-polystyrene-hydrogenated polyisoprene block copolymer have excellent low temperature impact strength and high heat distortion temperature for molding large automobile parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.