Injection molding thermoset interpolymers of ethylene-propylene and product thereof
US4244861A · kind A · utility
9Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1979 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Feb 23, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An injection-moldable, peroxide crosslinkable elastomeric composition comprises a mixture of a crystalline interpolymer comprising ethylene and propylene; a low density polyethylene; one or more multifunctional vinylic or allylic monomers; a medium to high structure form of carbon; and an organic peroxide. The composition is particularly useful for the fabrication of injection molded structures which are required to flex on impact and return to their original shape when the distorting force is released. Typical structures are automotive fender extensions, grilles and front and rear fascia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.