Devolatilizing polymers of styrene and acrylic or methacrylic acid
US4195169A · kind A · utility
15Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1978 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Nov 16, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/003
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Styrene and acrylic acid or methacrylic acid copolymers can be devolatilized at a temperature above 200.degree. C. and below the decomposition temperature of the copolymer under vacuum in the presence of a monohydric compound such as alcohol or water without significant increase in molecular weight or the formation of undesirable and insoluble gels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.