Compositions comprising EPDM, E/VA and poly-alpha-methylstyrene
US4102855A · kind A · utility
9Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Dec 5, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of crystalline EPDM rubbery polymers, high m.w. ethylene-vinyl acetate copolymers and polyalphamethyl styrene exhibit good processing characteristics and physical properties. Part of the EVA may be replaced with low m.w. crystalline polyethylene. The addition of reinforcing agents will raise the modulus and other physical properties while still retaining favorable processing characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.