Curing phthalonitrile resins with acid and amine
US5237045A · kind A · utility
30Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1992 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Jan 9, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymerization or cure of di-phthalonitrile monomers or prepolymers by a curing agent selected from (a) an acid and an amine, (b) a salt of an acid and an amine, and (c) mixtures of (a) and (b). In a preferred embodiment, the curing agents are amine salts which are reaction products of an aromatic amine and an aromatic sulfonic acid. The use of the novel curing agents enhances curing rates and results in polymers which have high Tg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.