Phthalonitrile resin from diphthalonitrile monomer and amine
US4408035A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1981 |
| Grant date | Oct 4, 1983 |
| Priority date | — |
| Expiry date | Aug 24, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Phthalonitrile resins useful as high-temperature coatings and plastics and n high-temperature composites are obtained by heating a diphthalonitrile monomer with a primary amine from a temperature from about the melting point of the monomer to about the decomposition temperature of the resin. The resins can also be prepared by dissolving a diphthalonitrile monomer in a solvent, e.g. acetonitrile, adding a primary amine to form a suspension, heating the suspension to the B-stage, quenching the suspension, removing the solvent, and heating the residue at a temperature from about its melting point to about the decomposition temperature of the resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.