Polyamide-imides from bis-imide and dialdoxime
US3948861A · kind A · utility
2Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 1973 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Nov 16, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyamide-imides are produced by heating a mixture comprising: PA1 A. a dialdoxime of the formula EQU G(CH = NOH).sub.2 in which G represents a valency bond or a divalent organic radical possessing between 1 and 24 carbon atoms, and PA1 B. a bis-imide of the formula ##EQU1## in which A represents a divalent organic radical possessing at least 2 carbon atoms, and Y.sub.1 and Y.sub.2 represent H, CH.sub.3 or Cl, 0.5 to 50 mols of bis-imide being used per mol of dialdoxime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.