Organofunctional silicone copolymers and the saponification products thereof
US7288592B2 · kind B2 · utility
12Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2003 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Feb 12, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F283/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Organosilicone and vinyl ester copolymers free from phase separation are prepared by copolymerizing at least one vinyl ester monomer with organosilicones containing difunctional silicone monomers and optionally a minor amount of monofunctional silicone monomers, in a non-aqueous solvent mixture containing at least one solvent with a transfer coefficient greater than 20·10−4 relative to vinyl acetate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.