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:
Nov. 13, 2001
Filed:
Sep. 15, 2000
Applicant:
Inventors:
Assignee:
Unilever Home & Personal Care USA, division of Conopco, Inc., Greenwich, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 7/44 ; A61K 7/135 ; A61K 7/021 ; C12P 1/00 ; C12N 1/14 ;
U.S. Cl.
CPC ...
A61K 7/44 ; A61K 7/135 ; A61K 7/021 ; C12P 1/00 ; C12N 1/14 ;
Abstract
A process is provided for preparing protein- and/or peptide-bound melanin, which is soluble in an aqueous solution at pH 2 to 11 and temp 0° C. to 50° C., by the steps of reacting dihydroxyphenylalanine or tyrosine with an oxidant enzyme in the presence of an acidic protein and/or peptide having a pl of 3-6. The soluble protein- and/or peptide-bound melanin of this invention is useful as a sunscreen and as a coloring and/or flavoring for food.