Polyphenylene ether process, catalyst and resin composition
US5068310A · kind A · utility
10Cited by
13References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Aug 23, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process for producing a polyphenylene ether with low nitrogen content and low odor properties employs, for oxidative coupling of a 2,6-disubstituted phenol, a novel catalyst comprising a copper compound, a diamine, a tertiary amine, a quaternary compound and an unsaturated compound. The new polyphenylene ether is suitable for polymer blending, with, for example, styrenic resins, to make low odor blends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.