Bi-modal silicone emulsions, silicone emulsification process and emulsions therefrom
US4874547A · kind A · utility
18Cited by
15References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1985 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Apr 2, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/923
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Silicone-in-water emulsions are prepared wherein the silicone phase as bi-modal and contains at least 25 percent volatile silicone and at least 1 percent high viscosity silicone fluid. The silicone emulsions are particularly useful in skin care compositions. The silicone-in-water emulsions are prepared by a process which is useful to emulsify any high viscosity silicone or mixture of silicones having a viscosity of less than 50 pascal-seconds. The process involves the formation of a rough emulsion followed by the use of low shear, preferably at about room temperature to form a stable emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.