Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Permanent waving or straightening
Reexamination Certificate
1998-07-10
2001-02-20
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Permanent waving or straightening
C424S070100, C424S070110, C424S070120, C424S070160, C424S070310, C132S202000, C132S203000
Reexamination Certificate
active
06190647
ABSTRACT:
BACKGROUND OF THE INVENTION
The subject matter of the present invention concerns a composition for increasing the stylability or shapability and luster of the hair, which contains a special homopolymer or copolymer, a polyethylene glycol and a non-ionic surfactant.
For some time research efforts in the hair care composition field have had the goal of developing preparations for increasing the shapability or stylability and luster of hair. Currently pomades, creams, gels or waxes that have a high content of thickeners, emulsifiers or consistency-providing agents are used in order to guarantee the desired Theological properties and emulsion stability. It is disadvantageous however that this goal is attained with the currently used hair care composition only by use of high concentrations of the named materials, which, on the one hand, increases costs and, on the other hand, undesirably loads the hair.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a hair treatment composition that no longer has the above-described disadvantages.
According to the invention the hair treatment composition for increasing the formability and luster of hair has a content of:
(A) a homopolymer or copolymer formed from at least one ethylenic unsaturated monomer of the formula (I):
CH
2
═CR
1
R
2
(I),
wherein R
1
is an A—(CH
2
CH
2
O)
x
—R
3
or COOH group and A is a C(═O)O, C(═O)NH or CH
2
O group, x is a number from 1 to 100, preferably from 10 to 50, R
3
is a C
1
- to C
30
-alkyl group, preferably a C
8
- to C
30
-alkyl group, R
2
is H, a C
1
- to C
30
-alkyl group or a CH
2
-R group, with the proviso that at least one of the groups, R
1
and R
2
, contain the A—(CH
2
CH
2
O)
x
—R
3
group;
(B) a polyethylene glycol, and
(C) a nonionic surfactant compound.
An unexpectedly strong, synergistic increase in viscosity and emulsifiability of the system occurs by a suitable combination of these three principal ingredients according to the invention, which cannot be obtained by the individual ingredients. The composition according to the invention is characterized by the fact that it forms stable emulsions with water-insoluble substances such as hydrocarbons or silicone oils. The rheological properties of the hair care compositions can be adjusted by variation of the content of the above-mentioned ingredients to provide the rheological properties of a pomade, cream, a wax or a gel.
Preferably component A is a copolymer which is formed from at least one ethylenic unsaturated monomer of the formula I and at least one ethylenic unsaturated monomer of the formula II
CH
2
═C(R
4
)COOR
5
(II),
wherein R
4
and R
5
are, independently of each other, H or an alkyl group with 1 to 30, preferably 1 to 12, especially preferably from 1 to 4 carbon atoms.
Preferably A is C(═O)O or CH
2
O, R is H or methyl and the monomer of formula I is preferably an itaconic acid derivative. Similarly it is preferable when the monomer of formula II is acrylic acid, methacrylic acid or a C
1
- to C
4
-alkyl ester.
Suitable copolymers include, for example, acrylic or methacrylic acid/acrylic or methacrylic acid polyethoxy alkyl ester copolymers (INCI-name: Acrylates/steareth-20 methacrylate copolymer), such as those marketed under the trademark Acrylsol®-22, Acrylsol® ICS and Aculyn®-22 by the Rohm and Haas Co., U.S.A. or acrylic or methacrylic acid/polyethoxyalkylallyl ether copolymers (INCI-name: Steareth-10 allyl ether/acrylates copolymer), such as those sold under the tradename Salcare® SC 90 by Allied Colloids Co., Great Britain, or acrylic or methacrylic acid/itaconic acid polyethoxyalkyl ester copolymers (INCI-name: Acrylates/steareth-20 Itaconate Copolymer and Acrylates/Ceteth-20 Itaconate Copolymer), such as those sold under the tradenames Structure® 2001 and Structure® 3001 by National Starch, U.S.A.
The acrylic or methacrylic acid groups in the polymers included in the composition of the invention are neutralized preferably by organic or inorganic bases, especially by primary or secondary amines, e.g. by aminomethylpropanol (AMP). The polymer is contained in the hair treatment composition according to the invention in an amount of from 0.01 to 10, preferably in an amount of 0.05 to 3 percent by weight.
The polyethylene glycols contained in the composition according to the invention are fluid, waxy or wax-like or solid at room temperature. They generally have a molecular weight of over 500, preferably between 20,000 and 3,600,000 and are designated by the trademark Lipoxol® 1000 by Huls, by the trademark Pluracol® E 4000 by BASF, by the tradename Polyglycol by Hoechst, by the trademark Upiwax® 20,000 by UPI Co. or by the type name Polyox® WSR-301 and Polyox® WSR-N-60 K by Union Carbide. The polyethylene glycol is present in the composition of the invention in an amount of from 0.01 to 50, preferably of 0.1 to 20 percent by weight.
The hair care compositions according to the invention also include a non-ionic surfactant as an additional important component. Preferably ethoxylated surfactant compounds containing between 1 and 1000 ethylene oxide units, most preferably 1 to 300, are present in the compositions. Fatty alcohol ethoxylates, fatty amine ethoxylates, fatty acid alkanolamide ethoxylates and fatty acid ester ethoxylates are particularly preferred. Examples of suitable fatty alcohol ethoxylates include ethoxylated lauryl-, tetradecyl-, cetyl-, oleyl- or stearyl alcohol, which can be used alone or in a mixture, as well as fatty alcohols of ethoxylate lanolin or ethoxylated lanolin. Also ethoxylated fatty alcohols, which are sold under the type name, Dehydol® by Henkel or under the type name Brij® of ICI surfactants, are suitable for the hair treatment composition according to the invention.
The fatty acid ester ethoxylates include, above all, diglyceride ethoxylate, such as that sold by ICI Surfactants under the trademark Arlatone® G; castor oil ethoxylated with 25 ethylene oxide units available under the INCI-name PEG-25 hydrogenated castor oil, which is sold by BASF under the trademark Cremophor® E1; castor oil ethoxylated with 35 ethylene oxide units available under the INCI name PEG-35 castor oil, which is sold by BASF under the trademark, Cremophor® RH 410; hydrogenated castor oil ethoxylated with 40 ethylene oxide units sold under the INCI name PEG-40, and the surfactant compounds sold under the name Rewoderm® LI, by Witco Co.
Furthermore the nonionic surfactant compounds that can be used for the cosmetic preparations according to the invention include known ethoxylated fatty acid sugar esters, especially ethoxylated sorbitan fatty acid ester, but also non-ethoxylated surfactants, such as the fatty acid sugar esters, which are sold under the trademarks Tween® and Arlacel® by the ICI Surfactants, the alkylpolyglycosides sold under the trademark Plantaren® or Plantacare by Henkel or by Seppic under the trademark Oramix®.
Generally any nonionic surfactant having an HLB-value under 20, preferably an HLB-value under 12 and especially preferably under 9, is suitable for the hair treatment compositions according to the invention.
Furthermore the composition according to the invention can contain other ingredients besides the above-mentioned three classes of substances. In the first place natural or synthetic film-forming, and thus hair fixing, polymers that are selected from the classes of anionic, cationic or amphoteric or nonionic polymers can be selected for inclusion in the compositions of the invention. These polymers usually are used in amounts of from 0.01 to 30 percent by weight, preferably in amounts of 0.5 to 10 percent by weight, but in the case of the cationic polymers the preferred concentration range is from 0.01 to 2 percent by weight.
The term “film-forming, hair-fixing polymer” means a polymer present in an amount of from 0.1 to 5% by weight in an aqueous, alcoholic or aqueous-alcoholic solution, that deposits a film on the hair and fixes the hair in this manner.
Suitable natural film-forming polymers with hair-fixing action inc
Chambettaz Daniel
Karlen Thomas
Steinbrecht Karin
Page Thurman K.
Seidleck Brian K.
Striker Michael J.
Wella Aktiengesellschaft
LandOfFree
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