Process for preparing silicone elastomer compositions
US5854336A · kind A · utility
35Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1997 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Mar 20, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process is provided for preparing a silicone elastomer composition for cosmetic products which includes the steps of feeding the silicone elastomer composition comprising a silicone rubber in a carrier fluid into a reactor, mixing the composition in the reactor, delivering the composition from the reactor into a high pressure pump, pumping the fluid into a device for reducing particles of rubber into smaller sizes and recirculating the resultant size reduced particles back to the reactor. The device for reducing particle size is preferably a high pressure fed homogenizer, most advantageously a sonolator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.