Method for removing volatiles from a block copolymer
US6962960B1 · kind B1 · utility
1Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2002 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Jul 3, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/003
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method and apparatus are disclosed for purifying copolymer compounds having monovinyl aromatic blocks and conjugated diene blocks by reducing the residual monomer content of the finished polymer. The method and apparatus includes a combination of heat exchangers and devolatilizers used in conjunction with a copolymerization reactor system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.