Process for preparing rubbery polymer reinforced styrenic resins
US4393171A · kind A · utility
10Cited by
9References
43Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 26, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Feb 26, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F265/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A continuous mass polymerization process for preparing rubber reinforced styrenic copolymers comprising forming a solution in an inert solvent of a styrenic polymer matrix and a monomer material capable of polymerizing to form a cross-linked rubbery polmyer, continuously charging the solution into a polymerization reactor and subjecting the solution to mass polymerization conditions whereby there is formed in situ a cross-linked rubbery polymer dispersed in the styrenic polymer matrix, continuously withdrawing the reaction mixture from the polymerization reactor and recovering the resulting rubber reinforced styrenic copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.