Compositions comprising functionalized polyphenylene ether resins
US6897282B2 · kind B2 · utility
22Cited by
36References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2003 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Oct 3, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a method of forming a polyphenylene ether resin containing residual aliphatic unsaturation. A polyphenylene ether is reacted with a capping agent in a solvent to form the polyphenylene ether resin containing residual aliphatic unsaturation, which is precipitated from solution by combining the solution with an antisolvent. The precipitated polyphenylene ether resin containing residual aliphatic unsaturation has lower levels of residual impurities than the same compound isolated by devolatilization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.