Process for the preparation of maleimide copolymers and thermoplastic resin composition using the same
US4757109A · kind A · utility
22Cited by
1References
8Claims
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Key dates
| Filing date | Oct 14, 1986 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Oct 14, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/40
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the preparation of maleimide copolymers by emulsion polymerization of 50 to 80% by weight of an aromatic vinyl monomer, 10 to 30% by weight of a vinyl cyanide monomer, and 5 to 40% by weight of a maleimide monomer comprising a three step polymerization process wherein the remaining vinyl cyanide monomer is separately added in the third step of said process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.