Process for preparing graft and block copolymers of polyphenylene oxides and polyesters and copolymers prepared by said process
US5219937A · kind A · utility
0Cited by
9References
25Claims
0Family size
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Key dates
| Filing date | Jun 15, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process of forming block and/or graft copolymers of a polyester and a polyphenylene oxide which comprises heating a mixture of the polyester and the polyphenylene oxide in the presence of a phosphite compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.