Epoxy-functionalized polyphenylene ethers of low gel content, method for their preparation, and copolymer-containing compositions prepared therefrom
US5214099A · kind A · utility
11Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1992 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Feb 25, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Epoxy-functionalized polyphenylene ethers are prepared by melt blending a polyphenylene ether with glycidyl acrylate in the presence of a lubricant such as at least one hydrogenated poly-.alpha.-olefin. The blending reaction takes place at a temperature in the range of about 250.degree.-300.degree. C., and the amount of glycidyl acrylate employed is about 2.5-5.0% by weight based on polyphenylene ether. The products are characterized by a gel content of less than 5% by weight. They form copolymer-containing compositions having excellent properties upon melt blending with linear polyesters such as poly(butylene terephthalate).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.