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. 29, 1991
Filed:
Sep. 10, 1987
Muhammad Akhtar, Bolingbrook, IL (US);
Johnson Products Co., Inc., Chicago, IL (US);
Abstract
This invention relates to a method of straightening, texturing and strengthening hair undergoing an alkaline straightening procedure and to nonacidic aqueous hair texturing and strengthening compositions for use in conjunction therewith. The texturing and strengthening compositions have a pH value from at least 8 to about 11 containing at least one water-dispersible hair texturing and strengthening agent including a quaternary nitrogen atom with at least one aliphatic alkyl group directly or indirectly bonded to the quaternary nitrogen atom, the aliphatic alkyl group having from about 3 to about 22 carbon atoms. Methods for applying the compositions in post-straightening and pre-straightening procedures are disclosed.