Method for preparing polyphenylene ethers
US4092294A · kind A · utility
66Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Aug 30, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S37/903
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A novel process is disclosed for the preparation of polyphenylene ethers by an oxidative coupling reaction. The process comprises oxidatively coupling a phenolic compound in the presence of a catalyst which comprises a copper complex of a copper compound with an N,N.sup.1 -disubstituted alkylene or cycloalkylene diamine having from 2 to 3 carbon atoms between the nitrogen atoms and whose substituents on the two nitrogens atoms are isopropyl or alpha tertiary alkyl, a tertiary amine, a secondary mono-amine and a bromine containing compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.