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US 6,291,563 B1Granted
Elastomer dispersion having a unique particle size distribution
AssigneeGeneral Electric Company
InventorsAdam J. Horne, Donald S. Johnson, John A. Kilgour, Richard D. Wang
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Abstract
A composition comprising the hydrosilylation addition product of a linear alkenyl functionalized polyorganosiloxane and an MHQ resin and a low molecular weight silicone when subjected to a new particle size reduction process that includes flow induced shearing provides for components in personal care formulations that have improved spreadability and substance as a consequence of a unique multiple particle size distribution.
Claims13
A process for preparing silicone elastomer compositions for use in cosmetic applications, comprising:
- a) adding a silicone elastomer to a carrier fluid to form an elastomer dispersion;
- b) shearing the elastomer dispersion at a high pressure to produce an elastomer composition wherein the average particle size of the elastomer is less than 100 microns, at conditions sufficient to produce a material having a particle size distribution characterized by three peaks in the particle size distribution.
Dependencies are inferred from the claim text.