Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Polymer containing
Reexamination Certificate
1997-05-16
2001-10-23
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Polymer containing
C424S070110, C424S070310
Reexamination Certificate
active
06306379
ABSTRACT:
FIELD OF THE INVENTION
The present invention generally relates to a process for setting hair. More particularly, by applying a hair fixative containing an alkyl polyglycoside onto the curled/styled hair, a film is subsequently formed on the hair enabling it to retain a particular style, while at the same time enhancing both its aesthetic and tactile qualities.
BACKGROUND OF THE INVENTION
Fixatives are designed to provide a temporary setting effect or curl to the hair, and while the most common fixative is a hair spray which is designed to be applied to the hair after the hair has been blow dried, several specialty type fixatives can be applied either after the hair is towel dried or to dry hair, in order to provide more body and volume to the hair, and to aid in styling, modeling, and sculpting of the hair into unique new looks. This is followed by application of a hair spray in the form of an aerosol or pump spray to maintain the shape and style of the hair and provide gloss and sheen to the hair, in addition to a well groomed and natural appearance. Such specialty type fixatives are marketed under various names including styling gels, styling cremes, styling mousses, styling foams, styling sprays, styling spritz, styling mists, styling glazes, styling fixes, sculpting lotions, sculpting gels, sculpting glazes, sculpting sprays, glossing gels, glossing spritz, shaping gels, forming mousses, modeling spritz, finishing spritz, fixing gels, and setting lotions.
Whether the fixative is the more common hair spray or a specialty type fixative, it will typically include a film forming additive as the hair holding agent. The film forming additive should provide hair holding properties and curl retention, little flaking or powder on combing, rapid curing or drying on hair, nonstickiness, and be easily removable by shampooing. Film forming additives are delivered by a solvent which is usually an alcohol such as ethanol or a mixture of an alcohol and water. In the case of aerosol formulations such as hair sprays and mousses, a propellant such as isobutane, butane, propane or dimethyl ether is an added part of the delivery system.
Examples of currently used film forming agents are shellac, polyvinylpyrrolidone-ethyl methacrylate-methacrylic acid terpolymer, vinyl acetate-crotonic acid copolymer, vinyl acetate-crotonic acid copolymer, vinyl acetate-crotonic acid-vinyl neodeconate terpolymer, poly(vinylpyrrolidone-ethyl methacrylate) methacrylic acid copolymer, vinyl methyl ether-maleic anhydride copolymer, octylacrylamide-acrylate-butylaminoethyl-methacrylate copolymer, and poly(vinylpyrrolidone-dimethylaminoethyl-methacrylate) copolymer and derivatives thereof. These particular polymers are most suitable for alcohol based formulations such as hair sprays and pumps, and are sometimes used in water-based hair fixative products.
Such resins typically contain carboxyl groups which must be neutralized to some degree to provide compatibility with water to facilitate removal by shampooing and increase the flexibility of the film. The neutralization of the carboxyl groups can lead to relatively high solution viscosities. Furthermore, the high molecular weight of the better holding resins produces solutions which are high in viscosity. When loading is attempted above a level of six to seven percent by weight of the formulation, the high viscosity prevents the solution from breaking up into droplets, and a stream rather than a spray is produced. Although higher solids solutions of these resins are deliverable from containers which have a small orifice, these valves are more prone to clogging. Thus, loading of these resins above a certain solids level is not practical. In addition, these organic resins have poor hold when subjected to high humidity for long periods of time. Finally, hair fixative additives such as polyvinylpyrrolidone, as well as the other listed resins, are costly to manufacture and employ in hair fixatives, while at the same time imparting a lacquered look and feel onto the hair.
Silicones are also commonly used in hair fixative products. Silicones have two inherent properties particularly advantageous in hair holding applications. Certain silicone materials form films which are hydrophobic and produce solutions of low viscosity. Silicones, however, suffer from many of the same disadvantages listed above with respect to polyvinylpyrrolidone and similar fixative resins.
Consequently, it is a primary object of the present invention to provide a process for setting hair using a hair fixative which is less costly to manufacture as compared to known hair fixative products, while at the same time imparting enhanced aesthetic and tactile qualities onto hair treated therewith.
SUMMARY OF THE INVENTION
Other than in the operating examples or where otherwise indicated, all numbers expressing quantities of ingredients or reaction conditions used herein are to be understood as being modified in all instances by the term “about”.
The present invention is directed to a process for imparting curl retention onto hair involving: (a) forming a hair fixative, said hair fixative containing: (i) an alkyl polyglycoside having general formula I:
R
1
O(R
2
O)
b
(Z)
a
I
wherein R
1
is a monovalent organic radical having from about 6 to about 30 carbon atoms; R
2
is divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6; and (ii) a solvent; and (b) applying the hair fixative onto the hair.
DESCRIPTION OF THE INVENTION
As stated above, the present invention relates to a process for imparting curl retention onto hair by first forming a hair fixative containing an alkyl polyglycoside and solvent, and then applying the hair fixative onto the curled/styled hair.
The alkyl polyglycosides which can be used in the compositions according to the invention have the formula I
R
1
O(R
2
O)
b
(Z)
a
I
wherein R
1
is a monovalent organic radical having from about 6 to about 30 carbon atoms; R
2
is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6. Preferred alkyl polyglycosides which can be used in the compositions according to the invention have the formula I wherein Z is a glucose residue and b is zero. Such alkyl polyglycosides are commercially available, for example, as APG®, GLUCOPON®, or PLANTAREN® surfactants from Henkel Corporation, Ambler, Pa., 19002. Examples of such surfactants include but are not limited to:
1. APG® 225 Surfactant—an alkyl polyglycoside in which the alkyl group contains 8 to 10 carbon atoms and having an average degree of polymerization of 1.7.
2. GLUCOPON® 425 Surfactant—an alkyl polyglycoside in which the alkyl group contains 8 to 16 carbon atoms and having an average degree of polymerization of 1.55.
3. GLUCOPON® 625 Surfactant—an alkyl polyglycoside in which the alkyl groups contains 12 to 16 carbon atoms and having an average degree of polymerization of 1.6.
4. APG® 325 Surfactant—an alkyl polyglycoside in which the alkyl groups contains 9 to 11 carbon atoms and having an average degree of polymerization of 1.6.
5. GLUCOPON® 600 Surfactant—an alkyl polyglycoside in which the alkyl groups contains 12 to 16 carbon atoms and having an average degree of polymerization of 1.4.
6. PLANTAREN® 2000 Surfactant—a C
8-16
alkyl polyglycoside in which the alkyl group contains 8 to 16 carbon atoms and having an average degree of polymerization of 1.4.
7. PLANTARENO 1300 Surfactant—a C
12-16
alkyl polyglycoside in which the alkyl groups contains 12 to 16 carbon atoms and having an average degree of polymerization of 1.6.
Other examples include alkyl polyglycoside surfactant compositions which are comprised of mixtures of compounds of formula I wherein Z represents a moiety derived from a reducing saccharide containing 5 or 6 carbon atoms; a is a number having a v
Barabash Martin J.
Jablonski Robert M.
Drach John E.
Henkel Corporation
McQueeney P. E.
Page Thurman K.
Trzaska Steven J.
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