Aqueous silicone dispersions and their preparation
US9504748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jul 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/95
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An aqueous dispersion comprises a silicone composition dispersed in an aqueous phase. The silicone composition comprises a product of a reaction of (a) an alkenyl-containing organopolysiloxane having an average per molecule of at least 2 alkenyl groups and (b) an Si H containing siloxane having an average per molecule of at least 2 Si H moieties. The dispersion also comprises a hydrosilylation catalyst, a polymeric film former and a surfactant of molecular weight below 1600. The composition is stabilised in dispersion form by the surfactant dissolved in the aqueous phase and the polymeric film former, and is capable of forming a tacky layer on drying.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.