Maleic anhydride-polyaldimine prepolymers
US3966678A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1974 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | Sep 30, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Multicellular polymers having excellent chemical inertness and heat resistance are produced by heating at a temperature from 100.degree. to 300.degree.C, maleic anhydride and a polyaldimine of the general formula EQU A (N = CH -- G).sub.n (I) in which G represents a monovalent organic radical which contains less than 35 carbon atoms and at least one aromatic or heterocyclic ring in the .alpha.-position to the imine group in formula (I), A represents an organic radical of valency n which contains less than 50 carbon atoms and at least one aromatic or heterocyclic ring in the .alpha.-position to the imine group in formula (I), and n represents a number at least equal to 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.