Poly(phenylene ether)-polysiloxane composition and method
US8722837B2 · kind B2 · utility
6Cited by
100References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Feb 19, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/126
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition is prepared by oxidative copolymerization of specific amounts of 2,6-dimethylphenol, 2,3,6-trimethylphenol, and a hydroxyaryl-terminated polysiloxane. The composition exhibits an increased heat resistance relative to a corresponding composition prepared by copolymerizing 2,6-dimethylphenol and hydroxyaryl-terminated polysiloxane, without 2,3,6-trimethylphenol. The composition is useful as a flame-retardant additive in polymer compositions that require high heat resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.