Process for producing binary or ternary graft-copolymer
US3984496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1974 |
| Grant date | Oct 5, 1976 |
| Priority date | — |
| Expiry date | Nov 5, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F255/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A binary or ternary graft-copolymer excellent in both tensile strength and impact resistance is obtained by the process for producing a binary or ternary graft-copolymer consisting essentially of an ethylene-propylene rubber and an aromatic vinyl compound or of an ethylene-propylene rubber, an aromatic vinyl compound, and a vinyl cyanide compound, characterized by subjecting these materials to solution polymerization in a mixed solvent comprising an aliphatic hydrocarbon solvent capable of dissolving the ethylene-propylene rubber and a polar solvent capable of dissolving a poly-(aromatic vinyl compound) or a copolymer of the aromatic vinyl compound and the vinyl cyanide compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.