Low temperature conversion of polymerized esters
US5338802A · kind A · utility
7Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Dec 21, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/48
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers comprising anionically polymerized conjugated dienes or vinylarenes and adjacent units of (1-methyl-1-alkyl)alkyl esters such as t-butylmethacrylate or (1-aryl-1-alkyl)alkyl esters, as well as selectively hydrogenated derivatives thereof, are heated to at least 170.degree. C. in the presence of an amine to convert the polymerized ester to amide and imide groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.