Heat-resistant resins derived from a bis-imide, an epoxy resin and a polyamine
US3978152A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1975 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Jan 31, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers possessing imide groups are disclosed. These polymers display good impact strength and are obtained by reacting: A. a bis-imide of the formula ##EQU1## in which Y represents a divalent hydrocarbon radical with 2 to 20 carbon atoms which is free from unsaturated bonds other than aromatic bonds, a divalent mono- or bis-heterocyclic radical with 2 to 10 carbon atoms, or a divalent organic radical with 4 to 20 carbon atoms consisting of several of the hydrocarbon radicals defined above connected to one another by --O--, --S--, --CO-- or --SO.sub.2 --, and B. either an adduct (A) obtained by reacting an epoxy resin and a polyamine of the general formula: EQU Z(-- NH.sub.2 ).sub.v (II) in which Z represents an organic radical of valency v and v represents an integer at least equal to 2, or a mixture comprising the adduct (A) and an amine of the formula: EQU X NH.sub.2 ).sub.m (III) in which X represents an organic radical of valency m and m represents an integer at least equal to 1, the proportions of the reagents being such that if n.sub.1 denotes the number of --NH.sub.2 groups of the polyamine of formula (II) and n.sub.2 denotes the number of epoxy groups of the epoxy resin, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.