Hair relaxer and post-relaxer hair brightener system
July 11, 2011. 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 3912808 Hair bleaching composition containing water-soluble amino and quaternary ammonium polymers Hair conditioning waving and straightening compositions and methods System and method for hair treatment Hair straightening process and hair curling process and compositions therefor Method and composition for hair treatment Hair straightening process and hair curling process and compositions therefor Hair bleaching composition containing solid polyolefin polymer and method for hair bleaching Hair straightening process and hair curling process and compositions therefor Method and composition for dyeing human hair InventorsAssigneeApplicationNo. 728572 filed on 07/11/1991US Classes:132/209, Plural separately applied or supplied named compositions132/203, For deformation, setting or holding (e.g., curling or waving)132/204, Relaxing or reducing agent followed by fixing or neutralizing agent (e.g., "permanent")132/208, Dyeing or bleaching424/70.2, Permanent waving or straightening424/70.6Hair coloring (nondyeing)ExaminersPrimary: Mancene, GeneAssistant: LaViola, Frank A. Attorney, Agent or FirmForeign Patent References
International ClassesA61K 007/06A61K 007/08 AbstractA hair relaxer and post-relaxer hair brightener system and method is disclosed which overcomes the undesirable alteration of the natural tone of hair, especially of naturally gray hair, by highly-alkaline hair-relaxing systems. The natural tone of such alkali-relaxed hair is desirably brightened, enhanced and restored in a hair brightening step by certain disclosed post-relaxer aqueous hair brightener compositions which contain an active hair brightening agent. In a particularly preferred embodiment, the hair brightening agent comprises a relatively low active concentration of hydrogen peroxide.Other References
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