Polyphenylene ether-polyetheramide blends
US5231146A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1992 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Jan 27, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/905
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blended polymer compositions are described which comprise: PA0 (A) at least about 5% by weight of at least one polyphenylene ether; PA0 (B) up to about 95% by weight of at least one block polyetheramide; and PA0 (C) from 0 to about 3% by weight based upon the total weight of components (A), (B) and any other polymers present in the composition of at least one polyepoxide; with the proviso that when said block polyetheramide has a flex modulus greater than about 75 MPa., said composition contains at least about 0.5% by weight based upon the total weight of components (A), (B) and any other polymers present in the composition of said polyepoxide. The blends give non-delaminating molded parts with good mechanical properties. The blends can be formed from a high-nitrogen polyphenylene ether and a block polyetheramide without the need for using vacuum-vented polyphenylene ether extrudate and without the need for adding a compatibilizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.