Manufacture of stable low particle size organopolysiloxane emulsion
US7745533B2 · kind B2 · utility
2Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2007 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Aug 23, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2383/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Stable high viscosity organopolysiloxane emulsions with particle sizes up to 150 nanometer may be made in a simple and cost-effective manner employing a standard homogenizer, and optional subsequent polymerization of the organopolysiloxan at controlled temperature. A combination of non-ionic emulsifier together with an at least one anionic emulsifier is employed, having an HLB value 12-15, while maintaining a temperature up to 50° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.