Stabilized polyphenylene ether resin and process for the preparation of the same
US5159027A · kind A · utility
19Cited by
21References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1989 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Aug 26, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a stabilized polyphenylene ether resin which comprises a plurality of polyphenylene ether chains, which chains collectively contain terminal 6-chroman groups in an amount of at least 0.01 in terms of the number of the terminal 6-chroman groups per 100 polyphenylene ether units in the resin. This polyphenylene ether resin has excellent resistance to thermal oxidation. A composition comprising this stabilized polyphenylene ether resin and a polystyrene resin has not only high resistance to thermal oxidation but also excellent moldability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.