Method for synthesis of hybrid silicon and organic copolymers by controlled free radical polymerization
US6858696B2 · kind B2 · utility
5Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jul 27, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/085
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention concerns a method for preparing by thermal activation of hybrid silicone and organic polymers comprising the motifs RxUySiO[4−(x+y)]/2 (I) wherein: x is equal to 0, 1, 2 or 3, y is equal to 0, 1, 2 or 3 with 2≦(x+y)≦3 and y is different from 0 for at least one of the hybrid copolymer motifs; and the symbols U, identical or different, represent organic polymer units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.