Polypropylene-base resin composition
US4480065A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1983 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | May 17, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/013
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polypropylene-base resin composition which comprises: PA1 (a) 80-60 wt. % of a crystalline ethylenepropylene block copolymer having an ethylene content of 11-30 wt. % and specific physical data; PA1 (b) 5-35 wt. % of an ethylene-propylene copolymer rubber having a propylene content of 20-50 wt. % and a specific Mooney viscosity; PA1 (c) 5-35 wt. % of an ethylene-propylene-a specific diene terpolymer having a propylene content of 20-50 wt. % and a specific Mooney viscosity; and PA1 (d) 2-5 wt. %, based on the total weight of the above resin components (a), (b) and (c), of an inorganic filler having a particle size of 3 .mu.m or smaller. The composition has excellent paintability and high stiffness, impact resistance and molding fluidity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.