Flame resistant polymer blends
US7652107B2 · kind B2 · utility
24Cited by
53References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2005 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Jan 26, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of siloxane copolymers, notably siloxane polyimides, with polyaryl esters or polyaryl ester carbonates containing linkages derived from resorcinol, show improved flame resistance, as measured by two minute and peak heat release, compared to conventional polycarbonates. In some instances transparent flame retardant blends can also be prepared. The compositions show good melt processability, high impact strength and high elongation, and can be used to make various flame retardant articles including sheets and films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.