Polymerization of silicone microemulsions
US6479583B2 · kind B2 · utility
3Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2001 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Jan 28, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Emulsions and latexes containing polymer particles with a diameter greater than 0.02 micron are prepared by (i) forming a microemulsion containing particles of oligomers with a diameter less than 0.02 micron by combining water, a surfactant, a hydride functional organosilicon oligomer or a mixture of such oligomers, and an alkenyl functional organosilicon oligomer or a mixture of such oligomers; (ii) adding a catalyst to the microemulsion; (iii) initiating polymerization of the oligomers; and (iv) continuing polymerization until an emulsion or latex is formed containing polymer particles with a diameter greater than 0.02 micron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.