Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Polymer containing
Reexamination Certificate
1997-07-02
2001-06-19
Moore, Margaret G. (Department: 1712)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Polymer containing
C424S070160, C424S070170
Reexamination Certificate
active
06248316
ABSTRACT:
TECHNICAL FIELD
The present invention relates to hair styling compositions containing both silicone and non-silicone organic polymers as a hair setting agents. More particularly, the present invention relates to hairs styling compositions containing these polymers which are solubilized in a hydrocarbon solvent.
BACKGROUND OF THE INVENTION
The desire to have the hair retain a particular shape is widely held. The most common methodology for accomplishing this is the application of a composition to dampened hair, after shampooing and/or conditioning, or to dry, styled hair. These compositions provide temporary setting benefits and they can be removed by water or by shampooing. The materials used in the compositions to provide the setting benefits have generally been resins and have been applied in the form of mousses, gels, lotions or sprays.
Many people desire a high level of style retention, or hold, from a hair spray composition. In typical hair sprays, hold is achieved by the use of resins, such as AMPHOMER
R
, supplied by National Starch and Chemical Company, and GANTREZ
R
SP 225, supplied by GAF. In general, as hair hold for hair spray compositions is increased, the tactile feel of the hair becomes stiffer and hence, less desirable. It is desirable to provide hair spray products which could provide an improved combination of hair hold and hair feel characteristics.
Hair sprays have been conventionally formulated with high amounts of monohydric alcohol solvents, such as ethanol and isopropanol, and relatively low amounts of water since the presence of water adversely affects spray quality. However, it is now particularly desirable to formulate hair spray compositions with reduced levels of volatile organic compounds, such as ethanol, isopropanol, and other volatile materials, such as aerosol propellants. One way to do this is to increase the levels of water in the formulations. In doing so, it would be highly desirable to provide reformulated products which overcome the problems conventionally associated with the addition of water to hair spray products. In particular, higher levels of water can negatively impact hair feel.
Recently, it has become known to utilize silicone grafted organic backbone polymers as hair setting agents in hairspray compositions and other hair styling compositions, e.g. hair tonics, lotions, rinses, mousses, etc. Silicone grafted polymers can be used to make hair spray compositions which provide hair setting ability with improved hair feel, e.g., increased softness relative to conventional polymeric hair setting agents.
However, it remains desirable to improve the hair feel performance these silicone grafted polymers can provide at a particular level of hair hold, or conversely, to improve hair hold (after application and drying of such compositions) for a particular level of hair feel performance. It is an object of this invention to provide hair spray compositions, and other aqueous, alcohol, or hydroalcoholic-based hair setting solutions, containing both non-silicone as well as silicone grafted organic backbone polymeric hair setting agents that provide such improved combinations of hair feel/hair hold performance.
It is a further object of this invention to provide hair setting compositions, as described above, that provide both improved hair feel and improved hair hold ability for a particular level of silicone grafted polymer in the composition.
It is yet a further object of this invention to provide compositions that meet the above objects for conventional volatile organic solvent level (conventional VOC) compositions, which typically contain greater than 80% of volatile organic compounds, as well as for reduced volatile organic solvent level (reduced VOC) compositions, i.e., compositions having 80% or less volatile organic solvents.
These and other benefits as may be apparent from the description below can be obtained by the present invention.
The present compositions can comprise, consist of, or consist essentially of any of the required or optional ingredients and/or limitations described herein.
All percentages and ratios are calculated on a weight basis unless otherwise indicated. All percentages are calculated based upon the total composition unless otherwise indicated.
All ingredient levels are refer to the active level of that ingredient, and are exclusive of solvents, by-products, or other impurities that may be present in commercially available sources, unless otherwise indicated.
SUMMARY OF THE INVENTION
The present invention relates to hair styling compositions comprising:
(a) from about 0.1% to about 15%, by weight, of an adhesive polymer having a weight average molecular weight of greater than about 20,000, said polymer being characterized by an organic polymeric backbone wherein said polymer is substantially free of silicone;
(b) from about 0.1% to about 15%, by weight, of a silicone grafted adhesive polymer, said polymer being characterized by an organic polymeric backbone, compatible with said adhesive polymer of (a) wherein said silicone grafted adhesive polymer has silicone macromers grafted to said backbone and wherein the number average molecular weight of said silicone macromers is greater than about 500;
(c) from about 0.1% to about 15%, by weight, of a hydrocarbon solvent selected from the group consisting of C
10
-C
14
branched chain hydrocarbons, and mixtures thereof having a boiling point of from about 105° C. to about 260° C.;
(d) a polar solvent phase comprising from about 80% to about 99%, by weight of the composition, of a polar solvent selected from the group consisting of water and C
2
-C
3
monohydric alcohols, and mixtures thereof, wherein said composition contains no more than about 15%, by weight, of C
3
monohydric alcohol;
wherein said organic polymer backbones of (a) and (b) are soluble in said polar solvent phase, and said silicone macromers of said hair setting polymer are soluble in said hydrocarbon solvent.
By “substantially free” is meant that the polymer contains less than about 0.5%, preferably less than about 0.1%, more preferably less than about 0.05% silicone.
In preferred embodiments, the compositions hereof additionally comprise a plasticizer for the silicone grafted hair setting polymer. Especially preferred plasticizers include di-isobutyl adepate and acetyl tri-C
2
-C
8
alkyl citrates, particularly acetyl triethyl citrate.
DETAILED DESCRIPTION OF THE INVENTION
The essential components of the present invention are described below. Also included is a nonexclusive description of various optional and preferred components useful in embodiments of the present invention.
Adhesive Polymer
The compositions of the present invention essentially comprise an adhesive polymer as a hair setting agent. The compositions hereof will generally comprise from about 0.1% to about 15%, preferably from 0.5% to about 8%, more preferably from about 1% to about 8%, by weight of the composition, of the adhesive polymer. It is not intended to exclude the use of higher or lower levels of the polymers, as long as an effective amount is used to provide adhesive or film-forming properties to the composition and the composition can be formulated and effectively applied for its intended purpose. By adhesive polymer what is meant is that when applied as a solution to a surface and dried, the polymer forms a film. Such a film will have adhesive and cohesive strength, as is understood by those skilled in the art.
The adhesive polymer will preferably be a carbon chain derived from polymerization of ethylenically unsaturated monomers, but can also be, cellulosic chains or other carbohydrate-derived polymeric chains. The backbone can also include ether groups, ester groups, amide groups urethanes and the like.
The adhesive polymer should have a weight average molecular weight of at least about 20,000, preferably greater than about 25,000, more preferably greater than about 30,000, most preferably greater than about 35,000. There is no upper limit for molecular weight except that which limits applicability of the invention fo
Midha Sanjeev
Peffly Marjorie Mossman
Torgerson Peter Marte
Moore Margaret G.
Murphy Stephen T.
Paul Andrew A
The Procter & Gamble & Company
Tucker Joan B.
LandOfFree
Hair styling compositions containing non-silicone and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hair styling compositions containing non-silicone and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hair styling compositions containing non-silicone and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2538546