Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Reexamination Certificate
2001-04-12
2004-02-24
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
C424S061000, C424S070100, C514S844000, C514S845000, C514S772300
Reexamination Certificate
active
06696067
ABSTRACT:
TECHNICAL FIELD
This invention relates to novel compositions for use in personal care formulations and applications. More particularly, this invention relates to cosmetic compositions comprising cationic, anionic or nonionic dispersion polymers, to methods of preparing the compositions and to methods of using the compositions to treat keratinous substrates such as hair, skin and nails.
BACKGROUND OF THE INVENTION
The surface properties of human hair, skin and nails are of basic interest in cosmetic science, and there has thus been a long-standing desire to discover cosmetic compositions which will beneficially affect the topical and bulk condition of these keratinous substrates. Such compositions should have adequate adherent properties, so that they are not only absorbed initially, but are also retained on exposure to water. This ability to be absorbed onto the substrate and to resist water rinse off is referred to as substantivity.
Compositions for treating hair should improve the wet and dry combability of the hair, facilitate detangling in wet hair combing and reduce static flyaway in dry hair combing while also imparting softness and suppleness to the hair. Ingredients used in shampoos should impart improved foam stability to the shampoo while hair fixative compositions should impart properties such as good curl retention without having a deleterious effect on wet combability.
With respect to compositions for treating skin, compositions are desired which will function to improve such properties as retention of skin moisture, softening of the skin, attraction of air moisture, retardation of skin water loss, feel and reduction of skin irritations caused by contact with detergents, soaps and the like. Compositions for treating nails should strengthen or harden fragile or brittle nails and improve the overall appearance of the nails.
It is, therefore, an object of this invention to develop new cosmetic compositions having the above beneficial properties for treating hair, skin and nails.
SUMMARY OF THE INVENTION
In its principal aspect, this invention is directed to a cosmetically acceptable composition for treating hair, skin and nails comprising from about 0.001 to about 25 weight percent, based on polymer solids, of a stable dispersion in an aqueous salt solution of a cationic, anionic or nonionic polymer having a weight average molecular weight of from about 10,000 to about 50,000,000 g/mol.
In another aspect, this invention is directed to a method of treating hair, skin or nails comprising applying to the hair, skin or nails a cosmetically acceptable composition comprising from about 0.001 to about 25 weight percent, based on polymer solids, of a stable dispersion in an aqueous salt solution of a cationic, anionic or nonionic polymer having a weight average molecular weight of from about 10,000 to about 50,000,000 g/mol.
DETAILED DESCRIPTION OF THE INVENTION
Definitions of Terms
As used herein, the following abbreviations and terms shall have the following meanings.
“AA” for Acrylic Acid.
“AcAm” or “Am” for acrylamide.
“AMP” for amino methyl propane.
“DADMAC” for diallyldimethylammonium chloride.
“DEA” for diethanolamide
“DMAEA” for dimethylaminoethyl acrylate.
“DMAEM” for dimethylaminoethyl methacrylate.
“DMAEA•BCQ” or “BCQ” for dimethylaminoethyl acrylate, benzyl chloride quaternary salt.
“DMAEA•MCQ” or “MCQ” for dimethylaminoethyl acrylate, methyl chloride quaternary salt.
“MAPTAC” for methacrylamidopropyltrimethylammonium chloride.
“MEA” for monoethanolamide.
“NF” for National Formulary.
“PABA” for p-Amino benzoic acid.
“PCA” for percarboxlic acid.
“PVM/MA” for Polymethyl vinyl ether/maleic anhydride.
“PVP” for polyvinyl pyrrolidone.
“USP” for United States Pharmacopia.
“VA” for vinyl acetate.
“Alkyl” means a monovalent group derived from a straight or branched chain saturated hydrocarbon by the removal of a single hydrogen atom. Representative alkyl groups include methyl, ethyl, n- and iso-propyl, and the like.
“Alkylene” means a divalent group derived from a straight or branched chain saturated hydrocarbon by the removal of two hydrogen atoms. Representative alkylene groups include methylene, ethylene, propylene, and the like.
“Alkoxy” and “alkoxyl” mean an alkyl-O-group wherein alkyl is defined herein. Preferred alkoxy are C
1
-C
4
alkyl-O-groups. Representative alkoxy groups include methoxy, ethoxy, propoxy, butoxy, and the like.
“Anionic monomer” means a monomer as defined herein which possesses a net negative charge. Representative anionic monomers include acrylic acid, and it's salts, including, but not limited to sodium acrylate, and ammonium acrylate, methacrylic acid, and it's salts, including, but not limited to sodium methacrylate, and ammonium methacrylate, 2-acrylamido-2-methylpropanesulfonic acid (AMPS), the sodium salt of AMPS, sodium vinyl sulfonate, styrene sulfonate, maleic acid, and it's salts, including, but not limited to the sodium salt, and ammonium salt, sulfonate itaconate; sulfopropyl acrylate or methacrylate or other water-soluble forms of these or other polymerisable carboxylic or sulphonic acids. Sulfomethylated acrylamide, allyl sulfonate, sodium vinyl sulfonate, itaconic acid, acrylamidomethylbutanoic acid, fumaric acid, vinylphosphonic acid, vinylsulfonic acid, allylphosphonic acid, sulfomethyalted acryamide, phosphonomethylated acrylamide, and the like.
“Aryl” means an aromatic monocyclic or multicyclic ring system of about 6 to about 10 carbon atoms. The aryl is optionally substituted with one or more C
1
-C
20
alkyl, alkoxy or haloalkyl groups. Representative aryl groups include phenyl or naphthyl, or substituted phenyl or substituted naphthyl.
“Arylalkyl” means an aryl-alkylene-group where aryl and alkylene are defined herein. Representative arylalkyl groups include benzyl, phenylethyl, phenylpropyl, 1-naphthylmethyl, and the like. Benzyl is preferred.
“Cationic Monomer” means a monomer as defined herein which possesses a net positive charge. Representative cationic monomers include dialkylaminoalkyl acrylates and methacrylates and their quaternary or acid salts, including, but not limited to, dimethylaminoethyl acrylate methyl chloride quaternary salt, dimethylaminoethyl acrylate methyl sulfate quaternary salt, dimethyaminoethyl acrylate benzyl chloride quaternary salt, dimethylaminoethyl acrylate sulfuric acid salt, dimethylaminoethyl acrylate hydrochloric acid salt, diethylaminoethyl acrylate, methyl chloride quaternary salt, dimethylaminoethyl methacrylate methyl chloride quaternary salt, dimethylaminoethyl methacrylate methyl sulfate quaternary salt, dimethylaminoethyl methacrylate benzyl chloride quaternary salt, dimethylaminoethyl methacrylate sulfuric acid salt, dimethylaminoethyl methacrylate hydrochloric acid salt, dimethylaminoethyl methacryloyl hydrochloric acid salt, dialkylaminoalkylacrylamides or methacrylamides and their quaternary or acid salts such as acrylamidopropyltrimethylammonium chloride, dimethylaminopropyl acrylamide methyl sulfate quaternary salt, dimethylaminopropyl acrylamide sulfuric acid salt, dimethylaminopropyl acrylamide hydrochloric acid salt, methacrylamidopropyltrimethylammonium chloride, dimethylaminopropyl methacrylamide methyl sulfate quaternary salt, dimethylaminopropyl methacrylamide sulfuric acid salt, dimethylaminopropyl methacrylamide hydrochloric acid salt, diethylaminoethylacrylate, diethylaminoethylmethacrylate and diallyldialkylanumonium halides such as diallyldiethylammonium chloride and diallyldimethyl ammonium chloride.
“Cycloalkyl” means a non-aromatic mono- or multicyclic ring system of about 5 to about 10 carbon atoms. Preferred ring sizes of rings of the ring system include about 5 to about 6 ring atoms. The cycloalkyl is optionally substituted with one one or more substituents selected from alkyl, alkoxy and haloalkyl. Representative monocyclic cycloalkyl include cyclopentyl, cyclohexyl, cycloheptyl, and the like. Representative multicyclic cycloalkyl include 1-decalin, norbornyl, adamant-(1- or 2-)yl, and the like.
“Dispersion polymer” polymer me
Betts Douglas E.
Brandt Loralei Marie
Johnson Cathy C.
Breininger Thomas M.
Howard S.
Martin Michael B.
Ondeo Nalco Company
Page Thurman K.
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