Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Reexamination Certificate
1997-10-22
2001-04-10
Bawa, Raj (Department: 1619)
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
C424S045000, C424S070110, C424S070130, C424S070140, C424S070160, C424S070170, C424S070210, C424SDIG001, C424SDIG002
Reexamination Certificate
active
06214319
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an aqueous-alcoholic composition for fixing hair with a content of neutralizable shellac in combination with at least one additional film-forming hair fixing polymer.
Conventional compositions for fixing hair, especially hair sprays, employ lower alcohols, such as ethanol or isopropanol as solvents for the film-forming, hair fixing ingredients. These lower alcohols are volatile organic compounds (VOC), which have been mentioned as contributors to air pollution. Thus because of environmental considerations, it is desirable to try to find hair fixing compositions which have reduced amounts of volatile organic solvents. This can occur by replacing all or part of the lower alcohols with water. Aqueous alcohol-free hair sprays are, of course, known, but they have disadvantageous properties during use, especially in regard to the required lengthy drying time.
Compositions for fixing hair, in which a part of the lower alcohol is replaced by water, are similarly known. This type of aqueous-alcoholic system has the disadvantage that it is difficult to spray, since alcohol/water mixtures with an alcohol content of between 30 and 60 percent have a viscosity maximum. This viscosity maximum occurs in an even greater extent in the presence of conventional hair-fixing polymers
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a composition for fixing hair, which has a reduced portion of volatile organic solvents, may be satisfactorily sprayed and simultaneously has good application properties.
It has been found that a viscosity lowering of aqueous-alcoholic solutions is caused by addition of shellac to the commercially available film-forming polymers, which causes an extraordinarily advantageous effect on the rinsability properties of these aqueous-alcoholic systems. By measurement of the force required for breaking of the film formed on the hair(breaking force measurement), it was found that the fixing properties of the composition of the invention were not significantly changed by partial replacement of the polymer with shellac.
The composition of the invention for hair treatment comprises
(A) shellac which is from 50 to 100% neutralized;
(B) at least one film-forming hair fixing synthetic polymer;
(C) from 10 to 80 percent by weight, preferably from 30 to 70 percent by weight, for at least one alcohol containing from 1 to 4 carbon atoms; and
(D) from 20 to 90 percent by weight, preferably from 30 to 70 percent by weight, water.
The ingredient A of the composition according to the invention is preferably used in the hair treatment composition according to the invention in a concentration of from 0.1 to 10 percent by weight, preferably in a concentration of from 0.5 to 5 percent by weight. A suitable product is, for example, marketed under the trade name Schellack MHP 210 of Pennig, Hamburg, Germany, or in pre-neutralized form with borax under the trade name, Spezialschellack SSB 63 HE-N of Stroever, Germany.
The neutralization agent for the shellac can, for example, be a primary, secondary or tertiary amine, aminoalcohol, alkali hydroxide or ammonia in the form of an aqueous ammonia solution. Preferred neutralization agents include 2-amino-2-methylpropanol, triisopropylamine, sodium hydroxide and aqueous ammonia solution.
Ingredient B of the hair treatment composition according to the invention is preferably used in a concentration of from 0.01 to 20 percent by weight, especially preferably in a concentration of from 0.1 to 10 percent by weight. By “film-forming hair fixing polymers” those polymers are understood, which when used in an amount of from 0.1 to 10 percent in an aqueous-alcoholic solution deposit a polymer film on the hair and in this way fix the hair.
Suitable nonionic polymers can be used as ingredient B of the hair treatment composition according to the invention. For example, those nonionic polymers include homopolymers of vinylpyrrolidones, for example those which are sold under the trade name Luviskol® K of BASF, Ludwigshafen, Germany, or PVP-K of ISP, Wayne, N.J., U.S.A., as well as homopolymers of N-vinylformamides, such as those sold under the trade name PVF of National Starch, U.S.A. Additional suitable synthetic film-forming nonionic hair fixing polymers, for example, include copolymerizates of vinylpyrrolidone and vinyl acetate, for example those which are marketed under the trade name LUVISKOL® VA of BASF, Ludwigshafen, Germany; terpolymers of vinylpyrrolidone, vinyl acetate and vinyl propionate, which, for example, are sold under the trade name of LUVISKOL® VAP of BASF, Ludwigshafen, Germany; polyacrylamides, which, for example, are sold under the trade name AKYPOMINE® P 191 of CHEM-Y, Emmerich, Germany or SEPIGEL® 305 of SEPPIC, USA; polyvinyl alcohols, which, for example, are marketed under the trade name ELVANOL® of DuPont or VINOL® 523/540 of Air Products, U.S.A., as well as polyethylene glycols with a molecular weight of 800 to 20,000 g/mol, which, for example, are sold under the trade name LIPOXOL® 1000 of HÜLS AG, Germany, PLURACOL E 4000 of BASF, Germany or UPIWAX® 20,000 of UPI.
Some synthetic anionic, film-forming hair-fixing polymers are suitable as ingredient B. For example, those synthetic anionic, film-forming polymers include t-butylacrylate/ethylacrylate/methacrylic acid terpolymers, which, for example, are marketed under the trade name Luvimer® 100P of BASF, Ludwigshafen, Germany. Additional suitable synthetic film-forming anionic polymers include, for example, crotonic acid-vinyl acetate copolymers, which for example are marketed in the form of a 60% solution in isopropanol/water under the trademark ARISTOFLEX® of HOECHST, Germany. Additional suitable anionic polymers are, for example, terpolymers made from acrylic acid, ethyl acrylate and N-t-butylacryl amide such as those sold under the trade name ULTRAHOLD 8 and ULTRAHOLD STRONG of BASF, Ludwigshafen, Germany.
Some amphoteric polymers are also suitable as ingredient B. Those amphoteric polymers include terpolymers of octylacrylamide, t-butylaminoethylmethacrylate and two or more monomers comprising acrylic acid, methacrylic acid or their esters, for example, those which are obtainable under the trade names AMPHOMER® 28-4910 and AMPHOMER LV-71 of National Starch, U.S.A.
Some cationic polymers are also suitable as ingredient B of the hair treatment composition according to the invention. Those cationic polymer include polyvinyl-pyrrolidone/dimethylaminoethylmethacrylate polymers, which are marketed, for example, under the tradename Gafquat® 755 N of Gaf Co., New York, U.S.A. Additional suitable cationic polymers are, for example, the copolymers made from polyvinylpyrrolidone and imidazolimine methochloride marketed under the trade name LUVIQUAT® HM 550 of BASF AG, Ludwigshafen, Germany; terpolymers of dimethyldiallyl ammonium chloride, sodium acrylate and acrylamide, which are sold under the trade name Merquat® Plus 3300 of Calgon, Pittsburgh, U.S.A.; the terpolymers made from vinyl pyrrolidone, dimethylaminoethylmethacrylate and vinylcaprolactam sold by ISP, U.S.A. under the trade name Gaffix® VC 713; pyrrolidone/methacrylamidopropyltrimethyl-ammonium chloride copolymers marketed by Gaf under the tradename Gafquat® HS 100 and diquaternary polydimethyl-siloxanes marketed under the tradename Abil® Quat 3272 by GOLDSCHMIDT, Essen, Germany.
Understandably the composition according to the invention can also include additional conventional cosmetic additive ingredients, such as non-fixing nonionic polymers, for example polyethylene glycols with a molecular weight of 600 g/mol, non-fixing anionic polymers and non-fixing natural polymers and their compositions in an amount of preferably from 0.01 to 50% by weight; perfume oils in an amount of preferably from 0.01 to 5 percent by weight; turbidity-inducing agents, such as ethyleneglycoldistearate, in an amount of preferably from 0.01 to 5 percent by weight; wetting agents or emulsifiers from the classes of anionic, cationic, amphoteric or non-ionic surface-active su
Franzke Michael
Schmenger Jurgen
Wendel Harald
Bawa Raj
Striker Michael J.
Wella Aktiengesellschaft
LandOfFree
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