The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2008
Filed:
Dec. 03, 2004
Applicants:
Willie Lau, Lower Gwynedd, PA (US);
Curtis Schwartz, Ambler, PA (US);
Adi Shefer, East Brunswick, NJ (US);
Inventors:
Willie Lau, Lower Gwynedd, PA (US);
Curtis Schwartz, Ambler, PA (US);
Adi Shefer, East Brunswick, NJ (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 17/06 (2006.01); C11D 3/50 (2006.01); C11D 3/37 (2006.01); A61K 8/11 (2006.01); A61K 9/51 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a controlled release system that can be incorporated in cosmetic, personal care, and household products to effectively encapsulate wide range of active ingredients and sensory markers and release them in response to moisture or over an extended period of time. The controlled release system of the present invention consists of oil absorbing polymer nanospheres coated with water sensitive surface active polymers.