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:
Oct. 16, 1990
Filed:
Oct. 04, 1988
Applicant:
Inventors:
Roger A Mathews, Newbury Park, CA (US);
Edward R Moore, Canoga Park, CA (US);
David W Cannell, Los Angeles, CA (US);
Assignee:
Redken Laboratories, Inc., Canoga Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424 72 ; 514772 ;
Abstract
An aqueous permanent wave solution employing one or more compounds for cleaving keratin interprotein disulfide bonds is enhanced by including a biocompatible 1,3-alkyldiol. Preferably from two to seven percent by weight of 2-ethyl-1,3-hexanediol or 1,3-butanediol is employed. Such compositions provide a useful neutral permanent wave solution employing ammonium thioglycolate, the first permanent wave solution with a pH in the same acidic range as the isolectric point of hair, or a five minute permanent wave with either an acid or alkaline solution.