Isomaleimides and polymers derived therefrom
US5744574A · kind A · utility
2Cited by
14References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1995 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Dec 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/028
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Isomaleimides and polyisomaleimides can be prepared by a method comprising the steps in sequence: admixing a maleamic acid or polymaleamic acid with an acid halide, reacting the admixture with a tertiary amine at a temperature sufficiently low to suppress the formation of a maleimide, and isolating the resulting isomaleimide or polyisomaleimide. Polymerization of a polyisomaleimide with a polynucleophilic monomer (polythiol, polyol, polyamine) produces novel polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.