Cosmetic and personal care compositions

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Halogenated hydrocarbon doai

Reexamination Certificate

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C514S746000, C514S759000, C514S740000, C514S741000

Reexamination Certificate

active

06653353

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to cosmetic and personal care compositions, a method of treating hair with the compositions and the use of the compositions for the cosmetic treatment of hair.
BACKGROUND AND PRIOR ART
The desire to have the hair retain a particular shape or style is widely held. The most common approach for accomplishing styling of hair is the application of a composition to dampened hair, after shampooing and/or conditioning, or to dry, styled hair. These compositions provide temporary styling benefits and can readily be removed by water or shampooing. To date, the materials employed in hair care compositions to provide styling benefits have generally been natural or synthetic resins and have been applied in the form of, for example, sprays, mousses, gels and lotions.
Recently, it has become desirable to have a high level of style retention, or strong hold, delivered from a hair spray composition. In a typical hair spray, hold is achieved by the use of commercially available styling polymers, such as AMPHOMER(™), supplied by National Starch Chemical Company, LUVIMER(™), supplied by BASF, GANTREZ(™), supplied by ISP Chemicals and also silicone graft copolymers, supplied by Mitsubishi Chemicals.
Typically, the styling polymers have a carbon backbone comprising various hydrophilic and hydrophobic vinylic monomers. These polymers can be nonionic or they can carry a charge, usually a negative charge. The hydrophilic monomer is employed to render the polymer water-soluble and the hydrophobic monomer is generally selected to enhance humidity resistance of the styling resins.
It is known that compositions containing certain known hair styling polymers can perform poorly under conditions of high humidity. Thus, hair styled with these compositions can lose its shape and any other benefits conferred by the compositions when the ambient humidity increases or the hair and/or the scalp becomes damp.
Traditionally, the anionically charged hair styling resins are formed from the corresponding acids (neutralised) using alkalising agents.
The alkalising or neutralising agents are usually an inorganic base such as sodium, potassium and ammonium hydroxide and/or an organic base. The organic bases commonly employed in a cosmetic formulation are alkyl and/or hydroxyalkyl, primary, secondary and tertiary amines. Examples of such materials employed in the formulations are 2-amino-2-methyl-1,3-propanediol (AMPD), 2-amino-2-ethyl-1,3-propanediol (AEPD), 2-amino-2-methyl-1-propanol (AMP), 2-amino-1-butanol (AB), monoethanolamine (MEA), diethanolamine (DEA), triethanolamine (TEA), monoisopropanolamine (MIPA), diisopropanolamine (DIPA), triisopropanolamine (TIPA) and dimethyl stearamine (DMS). Indeed even higher alkyl chain amines containing 12 or 16 carbons have been employed to combat humidity but without much success.
Although the common neutralising agents described above help to improve the film properties of the styling resin, they do not perform well under high humidity conditions.
DE 19805432 C describes a hair styling formulation containing a polymer with acid groups at least partly neutralised with fluorinated amine. The fluorinated amine is preferably a primary or secondary amine which contains at least one specified linear fluoroalk(en)yl group and optionally a specified linear alkyl group or hydrogen. The formulation is said to provide a flexible hydrophobic film without impairing spraying.
EP 0943312 A discloses a hair treatment composition containing a complex formed from at least one fluorinated acid and at least one polymer with basic groups or a complex of a salt of a fluorinated acid and a polymer with protonated or quaternized amine groups. The composition also contains at least one film-forming, hair-fixing polymer. These compositions are said to deposit a reduced amount of residue on the hair without reducing the hair-fixing performance.
U.S. Pat. No. 3,993,745 relates to hair treatment compositions comprising specified hydrophobic-lipophilic perfluorinated compounds and, optionally, hair styling resins. These compositions are said to substantially reduce the excess flow of the sebum or sebaceous secretions and there is no mention of the perfluorinated compounds acting as neutralising agents.
There is no mention in any of the above documents of the use of fluorinated amine compounds that contain an aromatic ring as neutralising agents in hair styling compositions.
Surprisingly, it has been found that the use of certain fluoroamines significantly improves the holding power of styling resins under high humidity conditions.
It is an aim of the present invention to provide cosmetic and personal care compositions comprising a hair styling polymer in which the film forming properties of the hair styling polymer are improved, particularly under high humidity conditions.
It is a further aim of the present invention to provide other advantages in cosmetic and personal care compositions. For example, compositions of the invention may, surprisingly, have one or more advantageous properties selected from low tack polymer film characteristics, and when applied to hair can give improved hold of hair and/or enhanced shine of hair and/or better natural movement of hair.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a cosmetic or personal care composition comprising: a hair styling polymer having one or more groups selected from acidic functional groups, anionic groups derived from the acidic functional groups or a mixture of said groups; a partially or fully fluorinated compound having one or more groups selected from amino groups, acid salts of the amino groups or a mixture of said groups, wherein the partially or fully fluorinated compound comprises an aromatic ring; and a cosmetically acceptable diluent or carrier.
In another aspect, the invention provides a method of treating hair using a composition of the invention.
In yet another aspect, the invention provides the use of a composition of the invention in the cosmetic treatment of hair.
DETAILED DESCRIPTION OF THE INVENTION
Partially or Fully Fluorinated Compound
The compositions of the present invention comprise a partially or fully fluorinated compound having one or more amino groups and at least one aromatic ring. In the compositions, the compound may have the amino group in the form of a free amine, as an acid salt or as a mixture of free amine and acid salt.
Preferably, the partially or fully fluorinated compound has the formula RNR
1
R
2
, wherein R is a partially or fully fluorinated group selected from aryl, aralkyl, heteroaryl or heteroaralkyl groups and R
1
and R
2
are independently selected from alkyl having 1 to 12 carbon atoms, aryl, aralkyl, heteroaryl or heteroaralkyl groups which are optionally fluorinated, or H.
It is particularly preferred that R
1
and R
2
are H. It is also preferred that R is a phenyl group substituted on the ring with one or more groups selected from fluorine and partially or fully fluorinated C
1
to C
6
alkyl (eg, trifluoromethyl) and optionally substituted by one or more other substituents.
Optionally, two of R, R
1
and R
2
may be linked together to form a four, five, six or seven membered heterocyclic ring containing nitrogen and at least one other heteroatom selected from nitrogen, oxygen or sulfur, preferably nitrogen. The heterocyclic ring may be fused to a phenyl group or further heterocyclic ring wherein the further heterocyclic ring contains at least one of the heteroatoms selected from nitrogen, oxygen and sulfur and is partially or fully unsaturated.
The term “alkyl” as used herein, includes straight chain and, for alkyl groups containing three or more carbon atoms, branched and also cycloalkyl groups. The cycloalkyl groups may optionally contain a heteroatom selected from nitrogen, oxygen and sulfur. Examples of straight chain alkyl include methyl, ethyl, propyl, butyl, pentyl and hexyl. Examples of branched alkyl include isopropyl, isobutyl, and tert-butyl. Examples of cycloalkyl groups include cyclopropyl, cyclobutyl, cyc

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