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.

Title
Process for preparing silicone elastomer compositions
Application Number
98804978
Publication Number
1255055
Application Date
March 19, 1998
Publication Date
May 31, 2000
Inventor
M C Cheney
B J Dobkowski
P A Divone
Agent
zhang yuanzhong
Assignee
Unilever
IPC
C08L 83/04
B29B 09/00
B01J 02/20
B01J 02/18
A61K 07/48
A61K 07/00