Release agent for transparent polyimide blends
US8263691B2 · kind B2 · utility
3Cited by
31References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2006 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Nov 6, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions made from a polyarylate or polyester carbonate containing greater than about 50 mole % resorcinol based ester linkages give miscible blends with polyimide resins, addition of alkyl amide compounds improves mold release and melt flow while maintaining transparency. The blends also have high refractive index and low haze.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.