Hydrogenated octasilsesquioxane-vinyl group-containing copolymer and method for manufacture
US6252030A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2000 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Mar 9, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for manufacturing an organic solvent-soluble hydrogenated octasilsesquioxane-vinyl group-containing compound copolymer comprising reacting 1 mol of (A) a hydrogenated octasilsesquioxane described by formula I ##STR1## with 0.2 to less than 3 mol of (B) a divinyl group-containing compound described by formula (2) EQU CH.sub.2.dbd.CH--L--CH.dbd.CH.sub.2 Formula 2 where L is selected from the group consisting of PA1 (a) a divalent hydrocarbon group comprising 3 to 10 carbon atoms and PA1 (b) --(SiR.sub.2 O).sub.m --SiR.sub.2 --, where each R is independently selected from the group consisting of alkyls comprising 1 to 6 carbon atoms and aryls comprising 6 to 9 carbon atoms and 1.ltoreq.m.ltoreq.10; in the presence of a hydrosilylation catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.