In situ block copolymer formation during polymerization of a vinyl aromatic monomer
US5721320A · kind A · utility
35Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1997 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Mar 5, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F293/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is a free radical bulk polymerization process for producing a rubber modified polymer from a vinyl aromatic monomer comprising: PA1 polymerizing the vinyl aromatic monomer in the presence of a diene rubber having at least one stable free radical group, under polymerization conditions such that a vinyl aromatic-diene block and/or graft copolymer rubber is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.