Process for preparing a thermoplastic resin
US4876306A · kind A · utility
4Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1988 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Mar 14, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a thermoplastic resin, which comprises polymerizing a monomer mixture containing at least 80% by weight of at least one member selected from the group consisting of an alkyl methacrylate, an alkyl acrylate, an aromatic vinyl compound, acrylonitrile, methacrylonitrile and butadiene by using as an emulsifier a compound having a group of the formula --PO.sub.3 M.sub.2 or --PO.sub.2 M wherein M is an alkali metal or an alkaline earth metal, to form a latex, and contacting the latex with an aqueous magnesium sulfate solution having a concentration of from 0.1 to 30% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.