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:
Apr. 09, 2013
Filed:
Jan. 31, 2008
Joachim Kohn, Piscataway, NJ (US);
Bozena Michniak, Piscataway, NJ (US);
David Devore, Princeton, NJ (US);
Larisa Sheihet, Monmouth Junction, NJ (US);
Prafulla Chandra, Highland Park, NJ (US);
Priya Batheja, Edison, NJ (US);
Joachim Kohn, Piscataway, NJ (US);
Bozena Michniak, Piscataway, NJ (US);
David Devore, Princeton, NJ (US);
Larisa Sheihet, Monmouth Junction, NJ (US);
Prafulla Chandra, Highland Park, NJ (US);
Priya Batheja, Edison, NJ (US);
Rutgers, The State University of New Jersey, New Brunswick, NJ (US);
Abstract
Topical compositions are provided in which active compounds for topical delivery through the stratum corneum are complexed with nanospheres of a triblock copolymer having an A-B-A structure wherein each A end block is a water-soluble, hydrophilic and non-toxic polymer or oligomer; and the hydrophobic middle B block is a hydrophobic polymer or oligomer with the same or different repeating units having the structure according to formula:(I) wherein X is —C—R—C— or —C—; Z is between 2 and about 100, inclusive; Ris CH═CH or (CH), wherein n is from 0 to 18, inclusive; Ris selected from hydrogen and straight and branched alkyl, alkoxy, alkylaryl and alkoxyaryl groups containing up to 18 carbon atoms; and R is selected from a bond or straight and branched alkyl, alkoxy, alkylaryl and alkoxyaryl groups containing up to 18 carbon atoms.