Polyfunctional phenylene ether oligomer, derivative thereof, resin composition containing the same, and use thereof
US7662906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Sep 16, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/485
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyfunctional phenylene ether oligomer (B) having 3 to less than 9 phenolic hydroxyl groups, obtained by reacting a polyfunctional phenol (A) having 3 to less than 9 phenolic hydroxyl groups per molecule and having alkyl groups and/or alkylene groups at 2- and 6-positions of at least one of the phenolic hydroxyl groups with a monohydric phenol compound of the formula (1), derivatives thereof, resin compositions containing the derivatives, curable films obtained therefrom and cured films thereof,wherein R1 and R2 are the same or different and represent a hydrogen atom, a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group, and R3 and R4 are the same or different and represent a halogen atom, an alkyl group having 6 or less carbon atoms or a phenyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.