Vesicles of high molecular weight silicone polyethers

• US 20070166263A1
• Filed: 04/19/2005
• Published: 07/19/2007
• Est. Priority Date: 04/20/2004
• Status: Active Grant

• Current Assignee: Shaow Lin
• Original Assignee: Shaow Lin
• Inventors: Lin, Shaow
• Granted Patent: US 7,678,301 B2
• Time in Patent Office: Days
• US Class Current: 424/70.120
• CPC Class Codes: A61K 8/14 Liposomes; Vesicles
• CPC Class Codes: A61K 8/34 Alcohols
• CPC Class Codes: A61K 8/671 Vitamin A; Derivatives thereof, e.g. ester of vitamin A acid, ester of retinol, retinol, retinal
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin

Abstract

Vesicle compositions from high molecular weight silicone polyether copolymers, methods for preparing the vesicle compositions, and personal, household, and healthcare formulations containing the vesicle compositions are disclosed.

Claims

1. A vesicle composition comprising a silicone polyether having a structure represented by:

2. The vesicle composition of claim 1 wherein the silicone polyether has the structure,

3. A process for making a vesicle composition comprising;

I) combining,

A) the silicone polyether copolymer of claim 1,

B) an optional water miscible volatile solvent,

C) water,

 

to form an aqueous dispersion of the silicone polyether copolymer,

II) mixing the aqueous dispersion to form the vesicle composition,

III) optionally, removing the water miscible volatile solvent from the vesicle composition.

4. The vesicle composition produced by the process of claim 3.

5. The vesicle composition of claim 1 further comprising a personal, household, or healthcare active ingredient.

6. A personal, household, and healthcare composition comprising the vesicle composition of claim 1.

7. The vesicle composition of claim 4 further comprising a personal, household, or healthcare active ingredient.

8. A personal, household, and healthcare composition comprising the vesicle composition of claim 5.

9. A personal, household, and healthcare composition comprising the vesicle composition of claim 7.