Method for reducing volatiles in polymerized styrene
US5540813A · kind A · utility
25Cited by
15References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Jan 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/001
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Methods and apparatus are disclosed for purifying polymerized monovinyl aromatic compounds such as polystyrene by reducing the residual monomer content of the finished polymer, said methods and apparatus including a combination of heat exchangers and devolatilizers used in conjunction with a monovinyl aromatic polymerization reactor system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.