Treating hair with cosmetic formulations containing polypeptides
Patent 4186188 Issued on January 29, 1980. Estimated Expiration Date: 
October 25, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 25, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3061512 3558770 3683939 3738913 3751564 3904748 Alcohol soluble acylated protein hydrolyzate reaction products Patent #: 3954725 InventorApplicationNo. 05/845057 filed on 10/25/1977US Classes:424/70.14, Protein or derivative514/773, Peptide containing530/300, PEPTIDES OF 3 TO 100 AMINO ACID RESIDUES530/343, By hydrolysis530/354, Gelatin530/407, Hydrolysis of protein930/30Linear peptide or protein containing a nonpeptide or abnormal peptide link (See note 5)ExaminersPrimary: Thomas, James O. Jr.Assistant: Clarke, Vera C. Attorney, Agent or FirmInternational ClassesA61K 8/64 (20060101)A61K 8/65 (20060101) A61K 8/30 (20060101) A61Q 5/12 (20060101) AbstractPolypeptides with sterically unhindered positive charges can be incorporated into a cosmetic formulation for human hair, skin and nails. The polypeptides, which can be prepared by trypsin catalyzed hydrolysis of proteins, have the formula: ##STR1## wherein n is an integer sufficient to provide a molecular weight of the polypeptide of from about 200 to about 2,000 each R1 is independently a side group attached to the alpha carbon of a naturally occurring amino acid; and R2 is selected from the group consisting of: ##STR2## |
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