JP7387260B2 - Composition for keratin fibers - Google Patents

Description

The present invention relates to compositions for treating keratin fibers, preferably hair.

In the field of hair cosmetic treatments, leave-on and rinse-off hair cosmetics are an important segment in the hair care category, and consumers use these hair cosmetics to improve their hair, smoothness, and moisture. It gives a feeling, volume down control, etc.

In particular, hair cosmetics in cream form are widely used. These are stable without any phase separation. However, it is difficult for hair cosmetics in the form of creams to exhibit a unique texture and at the same time satisfy the essential requirements for hair cosmetic treatments such as smoothness, moisturizing, and volume reduction control.

U.S. Patent No. 4 185 087 European Patent Application No. 0 530 974(A) European Patent Application No. 0 503 853(A) French Patent Application No. 8516334 U.S. Patent No. 4,957,732 European Patent No. 0 186 507 European Patent Application No. 0342834

"Chemistry and Technology of Silicones" (1968), Academic Press Cosmetics and Toiletries, Volume 91, January 1976, pp. 27-32, TODD & BYERS, "Volatile Silicone Fluids for Cosmetics"

The object of the present invention is a composition for keratin fibers, e.g. hair, which is stable and capable of exhibiting a specific texture (e.g. a "melting texture" when rubbed with the fingers), and To provide a composition capable of imparting to keratin fibers the cosmetic effects of conditioning and ease of handling, such as smoothness, moist feeling, ease of passing fingers through the hair, and volume reduction control.

The term "melting texture" refers to the sensation of a low-flow material becoming a flowable material as a result of finger rubbing. For example, if the gel turns into a liquid by rubbing it with your fingers, this will impart a "melting texture."

The term "volume reduction" refers to reducing or controlling the spreading of the keratin fibers, so that the style of the keratin fibers can be better controlled.

The above object is a composition for treating keratin fibers, preferably hair, comprising:
(a) at least one amino silicone;
(b) at least one hydrophilic acrylic polymer;
(c) at least one amphiphilic polymer; and
(d) Can be achieved by a composition containing water.

(a) The amino silicone may be aminopropyl dimethicone.

The amount of (a) amino silicone in the composition according to the invention is from 0.01% to 5% by weight, preferably from 0.05% to 3% by weight, more preferably from 0.1% to 1% by weight, relative to the total weight of the composition. It may be %.

(b) The hydrophilic acrylic polymer may be an acryloyldimethyltaurate polymer, including sodium acrylate/sodium acryloyldimethyltaurate copolymer, acrylamide/sodium acryloyldimethyltaurate copolymer, polyacryloyldimethylammonium taurate, acryloyldimethylammonium taurate/VP copolymers, and combinations thereof, more preferably acryloyldimethylammonium taurate/VP copolymers.

The amount of (b) hydrophilic acrylic polymer in the composition according to the invention is from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably 0.1% by weight, relative to the total weight of the composition. It may be 1% by mass or less.

(c) Amphiphilic polymer is
(1) at least one unit of formula (I):

(In the formula,
X ⁺ is a proton, an alkali metal cation, an alkaline earth metal cation or an ammonium ion)
as well as
(2) at least one unit of formula (II):

(In the formula,
n and p are independently the number of moles and vary from 0 to 50, preferably from 10 to 40, more preferably from 20 to 30, provided that n+p is less than or equal to 50, preferably 40 The following is more preferably 30 or less, R ₁ is a hydrogen atom or a linear or branched C ₁ -C ₆ alkyl group, preferably methyl, and R ₃ is a linear chain containing m carbon atoms. or branched alkyl group, m is a number from 6 to 30, preferably from 10 to 26, more preferably from 14 to 22)
may be selected from polymers including.

The amount of (c) amphiphilic polymer in the composition according to the invention is from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably 0.1% by weight, relative to the total weight of the composition. It may be 1% by mass or less.

The amount of (d) water in the composition according to the invention is from 50% to 95% by weight, preferably from 60% to 90% by weight, more preferably from 70% to 85% by weight, relative to the total weight of the composition. It may be within the range of

In addition to (a) amino silicone, the composition according to the invention may further contain (e) at least one silicone oil. (e) The silicone oil may be selected from non-volatile silicone oils. (e) The silicone oil may be selected from polydimethylsiloxane.

The amount of (e) silicone oil in the composition according to the invention is from 0.1% to 15% by weight, preferably from 0.5% to 10% by weight, more preferably from 1% to 5% by weight, relative to the total weight of the composition. It may be in the range of %.

The composition according to the invention may further comprise (f) at least one non-silicone oil.

The composition according to the invention may be of leave-on or rinse-off type.

The invention also relates to a cosmetic method for keratin fibers, preferably hair, comprising applying a composition according to the invention to the keratin fibers.

After extensive research, the inventors have developed a composition for keratin fibers, e.g. hair, that is stable and exhibits a unique texture by using a combination of two different types of polymers. To provide a composition that can provide keratin fibers with cosmetic effects such as conditioning and ease of handling, such as smoothness, moisturizing, ease of passing fingers through hair, and volume reduction control. I discovered that it is possible.

The invention therefore primarily relates to a composition for treating keratin fibers, preferably hair, comprising:
(a) at least one amino silicone;
(b) at least one hydrophilic acrylic polymer;
(c) at least one amphiphilic polymer; and
(d) Relates to compositions containing water.

The composition according to the invention comprises a combination of (b) at least one hydrophilic acrylic polymer and (c) at least one amphiphilic polymer.

The composition according to the invention is stable without any phase separation.

Compositions according to the invention may exhibit a unique texture, such as a melting texture, when rubbed into the fingers, and therefore compositions according to the invention may be attractive to consumers.

The composition according to the invention also provides cosmetic effects on keratin fibers, such as hair, of conditioning and manageability, such as smoothness (e.g. smooth combing even when the keratin fibers are wet, and/or keratin fibers). (smooth feel when the keratin fibers are dry), ease of passing fingers through the keratin fibers, moist feeling (even when the keratin fibers are dry), and volume reduction control (therefore, the Due to the anti-frizz properties of the composition according to the invention, it may be easier to style the shape of the keratin fibers).

The composition according to the invention can be in gel form.

In the following, the invention will be explained in detail.

[Composition]
One aspect of the invention is a composition for treating keratin fibers, preferably hair, comprising:
(a) at least one amino silicone;
(b) at least one hydrophilic acrylic polymer;
(c) at least one amphiphilic polymer; and
(d) Relates to compositions containing water.

Components (a), (b) and (c) are different from each other.

(amino silicone)
The composition includes at least one amino silicone. A single type of amino silicone may be used, or two or more different types of amino silicone may be used in combination.

As the amino silicone, any amino silicone in the cosmetics field may be used.

The term "amino silicone" as used herein means a silicone containing at least one primary, secondary or tertiary amine group or at least one quaternary ammonium group.

Among the aminosilicones that may be used in the present invention, mention may be made of:

(i) Polysiloxane corresponding to formula (A):

(where x' and y' are independently integers such that the weight average molecular weight (Mw) is between about 5,000 and 500,000);

(ii) Amino silicone corresponding to formula (B):
R' _a G _(3-a) -Si(OSiG ₂ ) _n -(OSiG _b R' _(2-b) ) _m -O-SiG _(3-a') R'_a' (B)
(In the formula,
G independently represents a hydrogen atom, or phenyl, OH, or a C1-C8 alkyl group, such as methyl, or a C1-C8 alkoxy group, such as methoxy,
a and a' independently represent the number 0 or an integer from 1 to 3, in particular 0;
b indicates 0 or 1, especially 1;
m and n are numbers whose sum (n+m) is in the range of 1 to 2,000, especially 50 to 150; n is a number of 0 to 1,999, especially 49 to 149; and m is 1 to 2,000 , in particular it is possible to indicate numbers from 1 to 10;
R' independently represents a monovalent group having the formula -C _q H _2q L, where q is a number ranging from 2 to 8, and L is a group of:
-NR"-QN(R") ₂
-N(R") ₂
-N ⁺ (R") ₃ A ^-
-N ⁺ H(R") ₂ A ^-
-N ⁺ H ₂ (R")A ^-
-NR"-QN ⁺ R"H ₂ A ^-
-NR"-QN ⁺ (R") ₂ HA ^-
-NR"-QN ⁺ (R") ₃ A ^-
an optionally quaternized amino group selected from
R" independently represents hydrogen, phenyl, benzyl, or a saturated monovalent hydrocarbon group, such as a C1-C20 alkyl group,
Q represents a linear or branched C _r H _2r group, r is an integer ranging from 2 to 6, preferably from 2 to 4;
A ⁻ represents a cosmetically acceptable ion, in particular a halide ion, such as a fluoride ion, a chloride ion, a bromide ion or an iodide ion).

The group of amino silicones corresponding to this definition (B) is represented by the silicones called "trimethylsilyl amodimethicone" having the formula (C):

(wherein n and m have the meanings given in formula (B) above).

Another group of amino silicones corresponding to this definition is represented by silicones having the following formula (D) or (E):

(In the formula,
m and n are numbers whose sum (n+m) can range from 1 to 1,000, especially from 50 to 250, more specifically from 100 to 200, and n is from 0 to 999, especially from 49 to 249, more specifically can represent a number from 125 to 175, and m can represent a number from 1 to 1,000, in particular from 1 to 10, more particularly from 1 to 5;
R ₁ , R ₂ and R ₃ independently represent a hydroxy group or a C1-C4 alkoxy group, where at least one of the R1 to R3 groups represents an alkoxy group).
The alkoxy group is preferably a methoxy group.
The hydroxy/alkoxy molar ratio preferably ranges from 0.2:1 to 0.4:1, preferably from 0.25:1 to 0.35:1, more particularly equal to 0.3:1.
The weight average molecular weight (Mw) of the silicone preferably ranges from 2,000 to 1,000,000, more particularly from 3,500 to 200,000.

(In the formula,
p and q are numbers whose sum (p+q) ranges from 1 to 1,000, especially from 50 to 350, more particularly from 150 to 250; p is from 0 to 999, especially from 49 to 349, more specifically can represent a number from 159 to 239, and q can represent a number from 1 to 1,000, especially from 1 to 10, more particularly from 1 to 5;
R ₁ and R ₂ independently represent hydrogen or a C1-C4 alkoxy group, where at least one of the R1 or R2 groups represents an alkoxy group).
The alkoxy group is preferably a methoxy group.
The hydroxy/alkoxy molar ratio generally ranges from 1:0.8 to 1:1.1, preferably from 1:0.9 to 1:1, more particularly equal to 1:0.95.
The weight average molecular weight (Mw) of the silicone preferably ranges from 2,000 to 200,000, more particularly from 5,000 to 100,000, more particularly from 10,000 to 50,000.

Commercial products corresponding to these silicones with structure (D) or (E) contain in their composition one or more other amino silicones whose structure differs from formula (D) or (E). can include.

A product containing aminosilicone with structure (D) is sold under the name BELSIL ADM 652 by Wacker.

A product containing aminosilicone with structure (E) is sold under the name FLUID WR 1300® by Wacker.

Another group of amino silicones corresponding to this definition is represented by the following formula (F):

(In the formula,
m and n are numbers whose sum (n+m) is in the range of 1 to 2,000, especially 50 to 150; n is a number of 0 to 1,999, especially 49 to 149; and m is 1 to 2,000, especially capable of indicating numbers from 1 to 10;
A represents a straight-chain or branched alkylene group containing 4 to 8 carbon atoms, preferably 4 carbon atoms). This group is preferably linear.
The weight average molecular weight (Mw) of these amino silicones preferably ranges from 2,000 to 1,000,000, more particularly from 3,500 to 200,000.

A preferred silicone of formula (F) is amodimethicone sold by Dow Corning under the tradename XIAMETER® MEM-8299 Cationic Emulsion.

Another group of amino silicones corresponding to this definition is represented by the following formula (G):

(In the formula,
m and n are numbers whose sum (n+m) is in the range of 1 to 2,000, especially 50 to 150; n is a number of 0 to 1,999, especially 49 to 149; In particular it is possible to indicate numbers from 1 to 10;
A represents a straight-chain or branched alkylene group containing 4 to 8 carbon atoms, preferably 4 carbon atoms). This group is preferably branched.
The weight average molecular weight (Mw) of these amino silicones preferably ranges from 500 to 1,000,000, more particularly from 1,000 to 200,000.

A silicone with this formula is, for example, DC2-8566 Amino Fluid by Dow Corning.

(iii) Amino silicone corresponding to formula (H):

(In the formula,
R ₅ independently represents a monovalent hydrocarbon group containing 1 to 18 carbon atoms, in particular a C1-C18 alkyl group or a C2-C18 alkenyl group, such as methyl;
R ₆ represents a divalent hydrocarbon group, in particular a C1-C18 alkylene group, or a divalent C1-C18, for example C1-C8 alkyleneoxy group, linked to Si via a SiC bond;
Q ^- is an anion, for example a halide ion, especially a chloride ion, or an organic acid salt (for example acetate);
r represents the average statistical value from 2 to 20, especially from 2 to 8;
s stands for average statistics from 20 to 200, especially from 20 to 50).

Such aminosilicone is described in more detail in US Pat. No. 4,185,087.

(iv) Quaternary ammonium silicone having formula (I):

(In the formula,
R ₇ is independently a monovalent hydrocarbon group containing 1 to 18 carbon atoms, in particular a C1-C18 alkyl group, a C2-C18 alkenyl group, or a ring containing 5 or 6 carbon atoms , for example, represents methyl;
R ₆ independently represents a divalent hydrocarbon group, in particular a C1-C18 alkylene group, or a divalent C1-C18, e.g. C1-C8 alkyleneoxy group linked to Si via a SiC bond. representation;
R ₈ independently represents a hydrogen atom, a monovalent hydrocarbon group containing from 1 to 18 carbon atoms, in particular a C1-C18 alkyl group, a C2-C18 alkenyl group or an -R ₆ -NHCOR ₇ group. ;
X ^- is an anion, for example a halide ion, especially a chloride ion, or an organic acid salt (for example acetate);
r represents the average statistical value from 2 to 200, especially from 5 to 100).
These silicones are described, for example, in European Patent Application No. 0 530 974 (A).

(v) Aminosilicone having formula (J):

(In the formula,
R ₁ , R ₂ , R ₃ and R ₄ independently represent a C1 to C4 alkyl group or a phenyl group;
R ₅ represents a C ₁ to C ₄ alkyl group or a hydroxy group;
m is an integer ranging from 1 to 5;
n is an integer ranging from 1 to 5;
x is selected such that the amine value is between 0.01 and 1 meq/g).

(vi) (AB) _n -type multiblock polyoxyalkylenated amino silicone (A is a polysiloxane block and B is a polyoxyalkylenated block containing at least one amine group).

Said silicone is preferably composed of repeating units having the following general formula:
[-(SiMe ₂ O) _x SiMe ₂ -RN(R")-R'-O(C ₂ H ₄ O) _a (C ₃ H ₆ O) _b -R'-N(H)-R-]
Or
[-(SiMe ₂ O) _x SiMe ₂ -RN(R")-R'-O(C ₂ H ₄ O) _a (C ₃ H ₆ O) _b -]
(In the formula,
a is an integer greater than or equal to 1, preferably in the range of 5 to 200, more particularly in the range of 10 to 100;
b is an integer comprised between 0 and 200, preferably between 4 and 100, more particularly between 5 and 30;
x is an integer ranging from 1 to 10,000, more specifically from 10 to 5,000;
R" is a hydrogen atom or methyl;
R independently represents a divalent straight-chain or branched C2-C12 hydrocarbon group optionally containing one or more heteroatoms, such as oxygen; preferably, R independently , an ethylene group, a linear or branched propylene group, a linear or branched butylene group, or a -CH ₂ CH ₂ CH ₂ OCH(OH)CH ₂ - group; preferentially R is independently represents the -CH ₂ CH ₂ CH ₂ OCH(OH)CH ₂ - group;
R' independently represents a divalent straight-chain or branched C2-C12 hydrocarbon group optionally containing one or more heteroatoms, such as oxygen; preferably R' is represents an ethylene group, a linear or branched propylene group, a linear or branched butylene group, or a -CH ₂ CH ₂ CH ₂ OCH(OH)CH ₂ - group; preferentially R' is - CH(CH ₃ )-CH ₂ -).

The siloxane block preferably accounts for between 50 and 95 mol%, more particularly from 70 to 85 mol%, of the total mass of the silicone.

The amine content is preferably between 0.02 and 0.5 meq/g copolymer, more particularly between 0.05 and 0.2 in a 30% solution in dipropylene glycol.

The weight average molecular weight (Mw) of the silicone is preferably between 5,000 and 1,000,000, more particularly between 10,000 and 200,000.
Particular mention may be made of the silicones sold under the name Silsoft A-843 or Silsoft A+ by the company Momentive.

(vii) Alkylamino silicone corresponding to the following formulas (K' and K):

(In the formula,
R, R' and R" independently represent a C1-C4 alkyl or hydroxy group,
A represents a C3 alkylene group, and m and n are such that the mass average molecular weight of the compound is approximately between 5,000 and 500,000);

(In the formula,
x and y are numbers in the range 1 to 5,000; preferably x is in the range 10 to 2,000, especially 100 to 1,000; preferably y is in the range 1 to 100;
R1 and R2 are independently preferably identical and are straight-chain or branched, containing from 6 to 30 carbon atoms, preferably from 8 to 24 carbon atoms, especially from 12 to 20 carbon atoms. , is a saturated or unsaturated alkyl group;
A represents a straight-chain or branched alkylene group containing 2 to 8 carbon atoms).
Preferably A contains 3 to 6 carbon atoms, especially 4 carbon atoms; preferably A is branched.
_The following divalent radicals may be mentioned _in particular: _-CH2CH2CH2- and _-CH2CH ( _CH3 ) _CH2- .

Preferably, R1 and R2 are independently saturated linear alkyl groups containing from 6 to 30 carbon atoms, preferably from 8 to 24 carbon atoms, especially from 12 to 20 carbon atoms; Particular mention may be made of the dodecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and eicosyl groups; preferentially R1 and R2, which may be the same or different, are hexadecyl (cetyl) and selected from octadecyl (stearyl) groups;

Preferentially, the silicone is of formula (K), where
x ranges from 10 to 2,000, especially from 100 to 1,000;
y ranges from 1 to 100;
A contains 3 to 6 carbon atoms, especially 4 carbon atoms; preferably A is branched; more particularly A is a divalent group of: CH ₂ CH ₂ CH ₂ and -CH ₂ CH(CH ₃ )CH ₂ - selected from;
R1 and R2 are independently straight-chain saturated alkyl groups containing 6 to 30 carbon atoms, preferably 8 to 24 carbon atoms, especially 12 to 20 carbon atoms; dodecyl, tetradecyl , pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and eicosyl groups; preferentially R1 and R2, which may be the same or different, are selected from hexadecyl (cetyl) and octadecyl (stearyl) groups. ). A preferred silicone of formula (K) is bis-cetearylamodimethicone.

Particular mention may be made of the silicone sold under the name Silsoft AX by the company Momentive.

Amino silicones of the present disclosure also include polydimethylsiloxanes containing primary amine groups at the chain ends or on side chains, such as aminopropyl end groups or side chain groups, such as formulas (A), (B) or (C ) may be selected from:

In formula (A), the value of n is such that the weight average molecular weight of the silicone is between 500 and 55,000. Examples of amino silicones (A) include those sold by Gelest under the names DMS-A11, DMS-A12, DMS-A15, DMS-A21, DMS-A31, DMS-A32 and DMS-A35. Can be done.

In formula (B), the values of n and m are such that the mass average molecular weight of the silicone is between 1,000 and 500,000, preferably between 100,000 and 300,000. Examples of silicone (B) are sold under the names AMS-132, AMS-152, AMS-162, AMS-163, AMS-191 and AMS-1203 by Gelest, and KF-8020 by Shin-Etsu Chemical Co., Ltd. I can list things that I have.

In formula (C), the value of n is such that the weight average molecular weight of the silicone is between 500 and 3,000. As examples of silicones (C), mention may be made of those sold by the company Gelest under the names MCR-A11 and MCR-A12.

Preferably, the amino silicone according to the invention is amodimethicone or the trade name Silsoft 253 from the supplier MOMENTIVE PERFORMANCE MATERIALS. Another preferred amino silicone is amodimethicone of formula (F) sold by Dow Corning under the tradename XIAMETER® MEM-8299 Cationic Emulsion.

In another embodiment, the amino silicone according to the invention is selected from bis-cetearylamodimethicones (sold by Momentive under the name Silsoft AX). Another preferred amino silicone that may be used in the compositions of the invention is aminopropyl dimethicone, such as the aminopropyl dimethicone sold by Shin-Etsu Chemical Co., Ltd. under the name KF-8020.

Amino silicones suitable for use according to the invention include, but are not limited to, 5 x 10 ^-6 to 2.5 m ² /s at 25°C, such as 1 x 10 ^-5 to 1 m ² /s There are volatile and non-volatile, cyclic, linear and branched amino silicones with viscosities in the range of .

The amount of (a) amino silicone in the composition according to the invention may be at least 0.01% by weight, preferably at least 0.05% by weight, more preferably at least 0.1% by weight, based on the total weight of the composition.

On the other hand, the amount of (a) amino silicone in the composition according to the invention may be 5% by weight or less, preferably 3% by weight or less, more preferably 1% by weight or less, based on the total weight of the composition.

The amount of (a) amino silicone in the composition according to the invention is therefore from 0.01% to 5% by weight, preferably from 0.05% to 3% by weight, more preferably from 0.1% by weight, relative to the total weight of the composition. It may be in the range of 1% by mass.

[Hydrophilic acrylic polymer]
The composition according to the invention comprises (b) at least one hydrophilic acrylic polymer. A single type of hydrophilic acrylic polymer may be used, or two or more different types of hydrophilic acrylic polymers may be used in combination.

(b) Hydrophilic acrylic polymers can act as thickeners.

According to the invention, the term "hydrophilic acrylic polymer" means non-hydrophobic and non-amphiphilic acrylic polymers.

The hydrophilic acrylic polymer according to the invention is either a polyacrylamidomethylpropanesulfonic acid (AMPS) acrylic polymer or an acrylic acid polymer.

Among the hydrophilic acrylic polymers, the following polymers can be mentioned.

1) Acrylic polymer containing at least one monomer with sulfonic acid groups

According to a first embodiment, the hydrophilic acrylic polymer used according to the invention comprises at least one monomer having sulfonic groups.

The polymers used according to the invention are homopolymers obtainable from at least one ethylenically unsaturated monomer having sulfonic groups and may be in free form or in partially or completely neutralized form.

Preferentially, the polymers according to the invention are prepared using inorganic bases (sodium hydroxide, potassium hydroxide or aqueous ammonia) or organic bases, such as monoethanolamine, diethanolamine, triethanolamine, aminomethylpropanediol, N-methylglue Camine, basic amino acids such as arginine and lysine, and mixtures of these compounds have been partially or completely neutralized. They are generally neutralized.

In the present invention, the term "neutralized" refers to a polymer that is completely or substantially completely neutralized, ie, at least 90% neutralized.

The polymers used in the compositions of the invention have a concentration in the range 1000 to 20 000 000 g/mol, preferably in the range 20 000 to 5 000 000 g/mol, even more preferentially in the range 100 000 to 1 500 000 g/mol. They usually have a range of number average molecular weights.

These polymers according to the invention may be crosslinked or non-crosslinked.

Monomers having sulfonic groups of the polymers used in the compositions of the invention include vinyl sulfonic acid, styrene sulfonic acid, (meth)acrylamide (C ₁ -C ₂₂ )alkyl sulfonic acid, N-(C ₁ -C ₂₂ )alkyl sulfonic acid, )alkyl(meth)acrylamides (C ₁ -C ₂₂ )alkyl sulfonic acids, such as undecyl acrylamide methanesulfonic acid, also their partially or fully neutralized forms, and mixtures thereof. .

According to one preferred embodiment of the invention, the monomers having sulfonic groups are (meth)acrylamido(C ₁ -C ₂₂ )alkylsulfonic acids, such as acrylamide methanesulfonic acid, acrylamide ethanesulfonic acid, acrylamide propanesulfonic acid, 2-acrylamido-2methylpropanesulfonic acid, 2-methacrylamido-2-methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-methacrylate selected from amidododecylsulfonic acid, and 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, and their partially or fully neutralized forms, and mixtures thereof.

More particularly, 2-acrylamido-2-methylpropanesulfonic acid (AMPS) and their partially or completely neutralized forms are used.

If the polymer is crosslinked, the crosslinking agent can be selected from the polyolefinically unsaturated compounds commonly used for crosslinking polymers obtained by free radical polymerization.

Examples of crosslinking agents that may be mentioned are divinylbenzene, diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ether, triethylene glycol divinyl ether, hydroquinone diallyl ether, ethylene glycol di(meth)acrylate or tetraethylene glycol. , trimethylolpropane triacrylate, methylenebisacrylamide, methylenebismethacrylamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetraallyloxyethane, trimethylolpropane diallyl ether, allyl (meth)acrylate, There are allyl ethers of sugar alcohols, or allyl or vinyl ethers of other polyfunctional alcohols, and allyl esters of phosphoric acid and/or vinylphosphonic acid derivatives, or mixtures of these compounds.

According to one preferred embodiment of the invention, the crosslinking agent is selected from methylenebisacrylamide, allyl methacrylate and trimethylolpropane triacrylate (TMPTA). The degree of crosslinking generally ranges from 0.01 mol% to 10 mol%, more particularly from 0.2 mol% to 2 mol%, based on the polymer.

Homopolymers of monomers having sulfonic groups may be crosslinked with one or more crosslinking agents.

These homopolymers are usually crosslinked and neutralized and can be obtained according to a method of preparation that includes the following steps:
(a) dispersing or dissolving a monomer such as 2-acrylamido-2-methylpropanesulfonic acid in free form in a tert-butanol solution or a solution of water and tert-butanol;
(b) The monomer solution or dispersion obtained in (a) is treated with one or more monomers in an amount making it possible to obtain a degree of neutralization of the sulfonic acid functional groups of the polymer in the range from 90% to 100%. neutralization with an inorganic or organic base, preferably ammonia NH ₃ water;
(c) adding a crosslinking monomer to the solution or dispersion obtained in (b);
(d) Standard free radical polymerization is carried out in the presence of a free radical initiator at temperatures ranging from 10 to 150°C; precipitating the polymer in a tert-butanol based solution or dispersion.

Preferred AMPS homopolymers are generally characterized as comprising randomly distributed:
a) 90% to 99.9% by mass of units of the following general formula (II):

(wherein X ⁺ represents a proton, an alkali metal cation, an alkaline earth metal cation or an ammonium ion, and up to 10 mol% of the cation X ⁺ is a proton H ⁺ in some cases);
b) 0.01% to 10% by weight of crosslinking units from at least one monomer containing at least two olefinic double bonds; the weight ratio is defined relative to the total weight of the polymer.

More particularly preferred homopolymers according to the invention contain from 98% by weight to 99.5% by weight of units of formula (II) and from 0.2% by weight to 2% by weight of crosslinking units.

Polymers of this type that may be mentioned in particular are those sold by the company Clariant under the trade name Hostacerin AMPS (CTFA name: polyacryloyldimethyltauramide ammonium) or by the company Seppic as Simulgel 800 (CTFA name: polyacryloyldimethyltaurate ammonium). ) is a crosslinked and neutralized 2-acrylamido-2-methylpropanesulfonic acid homopolymer sold under the trade name

As other acrylic polymers containing at least one monomer having sulfonic groups, mention may be made in particular of acryloyl dimethyl taurate polymers, preferably acryloyl dimethyl taurate copolymers. Acryloyl dimethyl taurate polymers are polymers containing acryloyl dimethyl taurate as monomers, and acryloyl dimethyl taurate copolymers are copolymers containing acryloyl dimethyl taurate as monomers and one or more other monomers. As acryloyldimethyltaurate copolymers, mention may be made of copolymers of acryloyldimethyltaurate and vinylpyrrolidone (VP), such as the ammonium acryloyldimethyltaurate/VP copolymer sold under the name Aristoflex AVC by Clariant.

2) Acrylamide/AMPS copolymer

According to other embodiments, the hydrophilic acrylic polymer comprises (i) acrylamide (monomer 1) and (ii) 2-acrylamido-2-methylpropanesulfonic acid (monomer 2, hereinafter referred to for convenience as AMPS). and (iii) at least one polyolefinically unsaturated compound (monomer 3), herein referred to as a crosslinking agent.

The crosslinked anionic copolymers used in the context of the present invention are already known per se, the preparation of which is described in particular in European Patent Application No. 0 503 853 (A), the contents of which is hereby incorporated by reference in its entirety.

The above-mentioned copolymers can thus be conventionally obtained from three different comonomers included in their composition according to emulsion polymerization techniques.

The polyolefinically unsaturated monomers used as crosslinking agents for preparing the copolymers according to the invention are preferably selected from the group formed by methylenebisacrylamide, allylsucrose and pentaerythritol. Even more preferentially, methylenebisacrylamide is used.

Preferably, the polyolefinically unsaturated compounds are generally present in the copolymer in a concentration between 0.06 and 1 mmol per mole of monomer units.

The ratio in mol% between acrylamide and AMPS is preferentially between 85/15 and 15/85, advantageously between 70/30 and 30/70, even more preferentially 65 /35 to 35/65, more specifically between 60/40 and 40/60. Furthermore, AMPS is generally at least partially prepared in the form of a salt, e.g. with sodium hydroxide, with potassium hydroxide, or with a low molecular weight amine, e.g. triethanolamine, or a mixture thereof. has been neutralized.

A particularly preferred crosslinked copolymer in the context of the practice of the present invention corresponds to that prepared in Example 1 of the above-mentioned European Patent Application No. 0 503 853 (A), which is therefore a water-in-oil inverse emulsion. It is a form. More precisely, this copolymer is formed from 60 mol% acrylamide and 40 mol% AMPS sodium salt, which is crosslinked with methylenebisacrylamide in a ratio of 0.22 mmol to 1 mol of total monomer mixture. The final water-in-oil inverse emulsion preferably contains about 40% by weight of the crosslinked copolymer as defined above and about 4% by weight of ethoxylated fatty alcohol, with an HLB of about 12.5.

Crosslinked copolymers more particularly used according to the invention are Sepigel 305 (CTFA name: polyacrylamide/C13-14 isoparaffin/laureth 7) or Simulgel 600 (CTFA name: acrylamide/sodium acryloyldimethyltaurate copolymer/isohexadecane/ Polysorbate 80) or Simulgel EG (CTFA name: sodium acrylate/sodium acryloyldimethyltaurate copolymer/isohexadecane/polysorbate 80).

3) Other hydrophilic acrylic polymers

Other hydrophilic acrylic polymers that may be used according to the invention include:
Homopolymers or copolymers of acrylic acid or methacrylic acid or their salts and their esters, such as the products sold under the names Carbopol 934, 940, 954, 981 and 980 by Noveon, Synthalen L (registered trademark) manufactured by 3V trademark), sodium polymethacrylate sold under the name Darvan No. 7® by Vanderbilt, products sold under the names Versicol F or Versicol K by Allied Colloid, and Ultrahold 8 by Ciba Geigy. as well as Synthalen K type polyacrylic acid,
Polyacrylates and polymethacrylates, such as glyceryl acrylate polymers, especially copolymers of glyceryl acrylate and acrylic acid, such as Lubrajel® MS, Lubrajel® CG, Lubrajel® DV, Lubrajel by Guardian Laboratories Products sold under the names Lubrajel® NP, Lubrajel® OIL, Lubrajel® Oil BG, Lubrajel® PF, Lubrajel® TW and Lubrajel® WA. Lubrajel MS,
Pemulen type polyacrylic acid/alkyl acrylate copolymer,
Acrylate/vinyl alcohol copolymers, such as the product sold under the name Hydragen FN® by Cognis, and mixtures thereof are preferably used.

(b) The hydrophilic acrylic polymer is an acryloyl dimethyl taurate polymer, more preferably sodium acrylate/sodium acryloyl dimethyl taurate copolymer, acrylamide/sodium acryloyl dimethyl taurate copolymer, polyacryloyl dimethyl ammonium taurate, acryloyl dimethyl taurate ammonium/ It may be preferred to be selected from the group consisting of VP copolymers, and combinations thereof.

(b) The hydrophilic acrylic polymer may be more preferably an ammonium acryloyldimethyltaurate/VP copolymer.

The amount of (b) hydrophilic acrylic polymer in the composition according to the invention may be at least 0.01% by weight, preferably at least 0.05% by weight, more preferably at least 0.1% by weight, based on the total weight of the composition.

On the other hand, the amount of (b) hydrophilic acrylic polymer in the composition according to the invention may be up to 10% by weight, preferably up to 5% by weight, more preferably up to 1% by weight, based on the total weight of the composition. good.

The amount of (b) hydrophilic acrylic polymer in the composition according to the invention is therefore from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% by weight relative to the total weight of the composition. % to 1% by mass.

(amphiphilic polymer)
The composition according to the invention comprises (c) at least one amphiphilic polymer. A single type of amphiphilic polymer may be used or a combination of two or more different types of amphiphilic polymers may be used.

The term "amphiphilic polymer" is understood to mean a polymer comprising at least one hydrophilic part (or block) and at least one hydrophobic part (or block). This polymer is water soluble or water dispersible.

(c) The amphiphilic polymer may be a block polymer or a "comb" polymer comprising at least one water-soluble or water-dispersible polymer block on the one hand and at least one hydrophobic block on the other hand.

Therefore, (c) the amphiphilic polymer can be, for example, a block (multiblock) polymer containing alternating water-soluble blocks and hydrophobic blocks.

(c) The amphiphilic polymer is provided in the form of a graft polymer whose backbone is composed of water-soluble or water-dispersible blocks and has a hydrophobic graft, and whose graft polymer backbone is crosslinked or non-crosslinked. You can also do it.

The term "water-soluble or water-dispersible polymer" means that when introduced into water at a concentration equal to 1%, it results in a macroscopically homogeneous solution and that when light of a wavelength equal to 500 nm passes through a 1 cm thick sample, The transmittance is understood to mean a polymer whose transmittance is at least 10%, which corresponds to an absorbance [abs=-log(transmittance)] of less than 1.5.

The term "amphiphilic polymer" also means that when introduced into an aqueous solution at 0.05% (by mass), it is possible to reduce the surface tension of water at 25 °C to a value of less than 50 mN/m, preferably less than 40 mN/m. can be understood to mean a polymer that is

(C) The amphiphilic polymer will generally have a weight average molar mass ranging from 10 000 to 10 000 000, more preferably from 50 000 to 8 000 000, even more preferably from 100 000 to 3 000 000. can.

A) Water-soluble polymer block The term "water-soluble block" means that when introduced into water at a concentration equal to 1%, it results in a macroscopically homogeneous solution in which light with a wavelength equal to 500 nm passes through a 1 cm thick sample. Its transmittance is at least 10% when it is understood to mean a block corresponding to an absorbance [abs=-log(transmittance)] of less than 1.5.

These water-soluble blocks can be obtained by free-radical polymerization of vinyl monomers or by polycondensation, or can also be composed of existing natural or modified natural polymers.

By way of example, mention may be made of the following water-soluble monomers (a) and their salts, which can be used alone or in mixtures to form said water-soluble or water-dispersible blocks or units:
(meth)acrylic acid,
vinylsulfonic acid and (meth)allylsulfonic acid,
vinylphosphonic acid,
methylvinylimidazolium chloride,
(meth)acrylamide,
2-vinylpyrine and 4-vinylpyridine,
maleic acid and maleic anhydride,
crotonic acid,
itaconic acid,
Vinyl alcohol with the formula CH ₂ =CHOH,
N-vinyl lactams, such as N-vinylpyrrolidone, N-vinylcaprolactam and N-butyrolactam,
Water-soluble styrene derivatives, especially styrene sulfonates,
dimethyldiallylammonium chloride,
N-vinylacetamide and N-methyl-N-vinylacetamide,
N-vinylformamide and N-methylvinylformamide,
A water-soluble vinyl monomer of the following formula (1):

[In the formula,
R is selected from H, _{-CH3 , -C2H5} or _{-C3H7 ,}
X is selected from:
-OR' type alkyl oxide (wherein R' is a saturated or unsaturated, straight-chain or branched hydrocarbon group having 1 to 6 carbons and at least one halogen atom) (iodine, bromine, chlorine or fluorine); at least one sulfone (-SO ₃ -), sulfate (-SO ₄ -) or phosphate (-PO ₄ H ₂ ) group; at least one hydroxyl (-OH) group; at least one ether (-O-) group; or at least one primary amine (-NH ₂ ), secondary amine (-NHR ₁ ), tertiary amine (-NR ₁ R ₂ ) or quaternary amine (-N ⁺ R ₁ R ₂ R ₃ ) group, where R ₁ , R ₂ and R ₃ are, independently of each other, a saturated or unsaturated linear chain having from 1 to 6 carbon atoms. or a branched hydrocarbon group, provided that the sum of the carbon atoms of R'+R ₁ +R ₂ +R ₃ does not exceed 7); for example, a quaternary Mention may be made of dimethylaminoethyl methacrylate (DMAEMA), glycidyl (meth)acrylate, hydroxyethyl methacrylate, and ethylene glycol, diethylene glycol or polyalkylene glycol (meth)acrylate.
-NH ₂ , -NHR' and -NR'R'' groups (wherein R' and R'' are, independently of each other, saturated or unsaturated, straight-chain or a branched hydrocarbon group, provided that the total number of carbon atoms in R'+R'' does not exceed 7, and the R' and/or R'' group is a halogen atom (iodine, bromine, chlorine, fluorine), or hydroxyl (-OH), ether (-O-), sulfone (-SO ₃ -), sulfate (-SO ₄ -), phosphate (-PO ₄ H ₂ ), primary amine (-NH ₂ ), secondary amine (-NHR ₁ ), tertiary amine (-NR ₁ R ₂ ) and/or quaternary amine (-N+R ₁ R ₂ R ₃ ) group (in the formula, R ₁ , R ₂ and R ₃ are, independently of each other, a saturated or unsaturated, straight-chain or branched hydrocarbon group having from 1 to 6 carbon atoms. Yes, provided that the sum of carbon atoms in R'+R''+R ₁ +R ₂ +R ₃ does not exceed 7; for example, N,N-dimethylacrylamide, 2-acrylamide-2 -Methylpropanesulfonic acid (AMPS) or (meth)acrylamidopropyltrimethylammonium chloride (APTAC and MAPTAC)].

The water-soluble block may contain a hydrophobic monomer (b), said hydrophobic monomer being present in a sufficiently low amount for these units to be water-soluble.

For example, the following may be mentioned as hydrophobic monomer (b):
Styrene and its derivatives, such as 4-butylstyrene, α-methylstyrene and vinyltoluene,
Vinyl acetate with formula _CH2 =CH- _OCOCH3 ,
vinyl ethers of the formula CH ₂ =CHOR, where R is a saturated or unsaturated, straight-chain or branched hydrocarbon group having from 1 to 6 carbons;
acrylonitrile,
caprolactone,
vinyl chloride and vinylidene chloride,
silicone derivatives such as methacryloyloxypropyltris(trimethylsiloxy)silane and silicone methacrylamide,
Hydrophobic vinyl monomer of formula (2) below:

[In the formula,
R is selected from H, _{-CH3 , -C2H5} or _{-C3H7 ,}
X is
-OR' type alkyl oxides, where R' is a saturated or unsaturated, straight-chain or branched hydrocarbon group having 1 to 6 carbon atoms;
-NH ₂ , -NHR' and -NR'R'' groups (wherein R' and R'' are, independently of each other, saturated or unsaturated, straight-chain or branched hydrocarbon group, provided that the total number of carbon atoms in R'+R'' does not exceed 6)
selected from]. Examples include methyl methacrylate, ethyl methacrylate, n-butyl (meth)acrylate, tert-butyl (meth)acrylate, cyclohexyl acrylate, and isobornyl acrylate, as well as ethyl 2-hexyl acrylate.

The water-soluble block may be unneutralized or completely or partially neutralized with an inorganic or organic base. The base can be selected, for example, from sodium, ammonium, lithium, calcium, magnesium or ammonium salts having 1 to 15 carbon atoms and substituted with 1 to 4 alkyl groups, or from mono-, di- and triethanolic salts. It can also be selected from amines, aminoethylpropanediol, N-methylglucamine, basic amino acids such as arginine and lysine, and mixtures thereof.

Among the polycondensates and natural or modified natural polymers that can form all or some of the water-soluble blocks, mention may be made of:
water-soluble polyurethane,
polyethyleneimine,
polyethers such as polyoxyethylene and polyoxypropylene,
Xanthan gum, especially that sold under the names Keltrol T and Keltrol SF by Kelco or Rhodigel SM and Rhodigel 200 by Rhodia;
Alginate (Kelcosol, manufactured by Monsanto) and its derivatives, such as propylene glycol alginate (KelcoloidLVF, manufactured by Kelco);
ι, κ and λ type carrageenan,
pectins with different degrees of modification (HM and LM),
Cellulose derivatives, especially carboxymethylcellulose (Aquasorb A500, Hercules), hydroxymethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, hydroxyethylcellulose and quaternized hydroxyethylcellulose;
Galactomannans and their derivatives, such as konjac gum, gellan gum, locust bean gum, fenugreek gum, gum karaya, gum tragacanth, gum arabic, gum acacia, guar gum, hydroxypropyl guar, hydroxypropyl guar modified with carboxymethyl sodium groups (Jaguar XC97- 1, Rhodia) or hydroxypropyltrimethylammonium guar chloride,
Starch derivatives, and mixtures thereof.

The water-soluble polymer blocks have a molar mass between 1000 g/mol and 10 000 000 g/mol when they constitute the water-soluble backbone of the comb polymer. These water-soluble blocks, when they constitute the blocks of the multiblock polymer, preferably have a molar mass between 500 g/mol and 500 000 g/mol.

B) Hydrophobic block The term "hydrophobic block" refers to fatty substances or oils that are liquid at room temperature (25°C), such as alkanes, esters, ethers, triglycerides, silicones or fluorinated compounds, or mixtures of the above-mentioned oils. is understood to mean a block that is soluble or dispersible.

These blocks, when introduced into oils or oily mixtures at a concentration equal to 1% with stirring for 48 hours at 50 °C, result in a macroscopically homogeneous solution after returning to room temperature, in which light with a wavelength equal to 500 nm is emitted. Its transmission through a 1 cm thick sample is at least 10%, preferably at least 20%. The oils considered can be of the alkane, ester, triglyceride, ether, silicone or fluorinated type or mixtures of the abovementioned oils.

For example, one can mention hydrophobic blocks containing:
an alkyl group containing at least one 6 to 30 carbon atoms;
at least one fluorinated or partially fluorinated C ₆ -C ₃₀ alkyl group (e.g. a group of the formula -(CH ₂ ) ₂ -(CF ₂ ) ₉ -CF ₃ ),
at least one cholesteryl group or at least one cholesterol-derived group (e.g. cholesteryl hexanoate),
at least one or more cyclic aromatic groups, such as benzene, naphthalene or pyrene,
At least one silicone or alkylsilicone or alkylfluorosilicone group.

The molar mass of these hydrophobic blocks can be between 100 and 10 000 g/mol, preferably between 200 and 5000 g/mol.

The weight proportion of the hydrophobic blocks in the final amphiphilic polymer is preferably between 1% and 60% by weight, in particular between 2% and 40% by weight, in particular 5% by weight, based on the final polymer. and 30% by mass.

C) Preparation of amphiphilic polymers The polymers used in the context of the present invention can be easily prepared according to a variety of methods including, for example:

Regarding “comb” polymers:
Copolymerization: One possibility for preparing "comb" polymers is, for example, a macromonomer containing a hydrophobic block (the above-mentioned hydrophobic block with a vinyl end) and a water-soluble vinyl monomer, for example of formula (1) It consists of copolymerizing acrylic acid or vinyl monomers having
Grafting: Another possibility consists of grafting a hydrophobic block with at least one reactive end to a water-soluble polymer containing complementary reactants.

Regarding block polymers:
Coupling reaction: If the final polymer is provided in the form of a block polymer, it can be prepared by coupling between a water-soluble block and a hydrophobic block with complementary reactants at each end. .
Living Polymerization: The polymers of the invention can be prepared by living polymerization of the anionic or cationic type or by controlled radical polymerization. The latter can be synthesized by various methods, e.g. via atom transfer routes (atom transfer radical polymerization or ATRP), methods involving radicals, e.g. nitrogen oxides, or reversible addition-fragmentation chain transfer, e.g. (polymer design via) These synthesis methods can be used to obtain water-soluble blocks and hydrophobic blocks of the polymers of the invention; they can be used to synthesize only one of the two types of blocks of the polymers of the invention. The other block can also be introduced into the final polymer via the initiator used or by a coupling reaction between a water-soluble block and a hydrophobic block.

(c) The amphiphilic polymer is preferably selected from AMPS amphiphilic polymers, ie polymers derived from 2-acrylamido-2-methylpropanesulfonic acid (AMPS).

(c) Amphiphilic polymer is
(a) at least one unit of formula (3):

(wherein X ⁺ is a proton, an alkali metal cation, an alkaline earth metal cation or an ammonium ion); and
(b) at least one unit of formula (3a):

(In the formula,
n and p independently of each other indicate the number of moles and vary from 0 to 50, preferably from 10 to 40, more preferably from 20 to 30, provided that n+p is 50 or less, preferably 40 or less, more preferably 30 or less; R ₁ represents a hydrogen atom or a linear or branched C ₁ -C ₆ alkyl (preferably methyl) group; R ₃ represents 6 to 30, preferably represents a straight-chain or branched alkyl group containing m carbon atoms ranging from 10 to 26, more preferably from 14 to 22).
More preferably, it is selected from polymers containing.

In formula (3a), p is 0, and n is preferably in the range of 1 to 50, more preferably 10 to 40, even more preferably 20 to 30.

For example, the units (a) can be 80 to 99 mol% of the polymer, and the units (b) can be 1 to 20 mol% of the polymer.

These polymers according to the invention can be prepared using inorganic bases such as sodium hydroxide, potassium hydroxide or ammonia, or organic bases such as mono-, di- and triethanolamine, aminomethylpropanediol, N-methylglucamine. , basic amino acids such as arginine and lysine, and mixtures thereof, preferably partially or completely neutralized.

Amphiphilic AMPS polymers may be crosslinked. However, it is preferred that the amphiphilic AMPS polymer used in the composition according to the invention is not crosslinked.

These include one or more initiators, such as azobisisobutyronitrile (AIBN), azobisdimethylvaleronitrile, 2,2'-azobis[2-amidinopropane] hydrochloride (ABAH), organic peroxide optionally in the presence of a reducing agent, such as dilauryl peroxide, benzoyl peroxide, tert-butyl hydroperoxide, an inorganic peroxide compound such as potassium persulfate or ammonium persulfate, or H ₂ O ₂ can be obtained according to conventional radical polymerization methods below.

The polymer is obtained in particular by radical polymerization in a tert-butanol medium and precipitation from that medium. By using polymerization in tert-butanol it is possible to obtain a particularly favorable distribution of polymer particle sizes for the use of the polymer.

The polymerization reaction can be carried out at a temperature between 0°C and 150°C, preferably between 20°C and 100°C, either at atmospheric pressure or under reduced pressure. It can also be carried out under an inert atmosphere, preferably under nitrogen.

AMPS-derived polymers that can be used in the compositions according to the invention include (meth)acrylic acid and the following: 2-acrylamido-2-methylpropanesulfonic acid (AMPS) or one of its sodium or ammonium salts; Particular mention may be made of polymers prepared with esters of:
C ₁₀ -C ₁₈ alcohol oxyethylated with 8 mol of ethylene oxide (Genapol C-080, manufactured by Clariant),
C ₁₁ oxo alcohol oxyethylated with 8 mol ethylene oxide (Genapol UD-080, Clariant),
C ₁₁ oxo alcohol oxyethylated with 7 mol of ethylene oxide (Genapol UD-070, manufactured by Clariant),
C ₁₂ -C ₁₄ alcohol oxyethylated with 7 mol of ethylene oxide (Genapol LA-070, manufactured by Clariant),
C ₁₂ -C ₁₄ alcohol oxyethylated with 9 mol of ethylene oxide (Genapol LA-090, manufactured by Clariant),
C ₁₂ -C ₁₄ alcohol oxyethylated with 11 mol of ethylene oxide (Genapol LA-110, manufactured by Clariant),
C ₁₆ -C ₁₈ alcohol oxyethylated with 8 mol of ethylene oxide (Genapol T-080, manufactured by Clariant),
C ₁₆ -C ₁₈ alcohol oxyethylated with 11 mol of ethylene oxide (Genapol T-110, manufactured by Clariant),
C ₁₆ -C ₁₈ alcohol oxyethylated with 15 mol of ethylene oxide (Genapol T-150, manufactured by Clariant),
C ₁₆ -C ₁₈ alcohol oxyethylated with 20 mol of ethylene oxide (Genapol T-200, manufactured by Clariant),
C ₁₆ -C ₁₈ alcohol oxyethylated with 25 mol of ethylene oxide (Genapol T-250, manufactured by Clariant),
C ₁₈ -C ₂₂ alcohol oxyethylated with 25 mol ethylene oxide,
C ₁₆ -C ₁₈ isoalcohol oxyethylated with 25 mol of ethylene oxide.

According to a preferred embodiment, the amphiphilic polymer comprises AMPS and 6 to 25 oxyalcohols obtained from AMPS and a C ₁₆ to C ₁₈ alcohol oxyethylated with methacrylic acid or methacrylate and 6 to 25 mol of ethylene oxide. It is a copolymer of C ₁₆ to C ₁₈ alcohol containing ethylene groups with methacrylic acid ester. Amphiphilic polymers are also C ₁₂ containing 6 to 25 oxyethylene groups obtained from AMPS and C ₁₂ to C ₁₄ alcohols oxyethylated with methacrylic acid or methacrylates and 6 to 25 mol of ethylene oxide. It can be a copolymer of methacrylic acid ester with ~C ₁₄ alcohol.

As preferred amphiphilic polymers according to the invention, mention may be made of:
A non-crosslinked copolymer (Genapol T-080) obtained from 92.65 mol% AMPS and 7.35 mol% methacrylic ester of a C ₁₆ -C ₁₈ alcohol containing 8 oxyethylene groups, for example Aristoflex by Clariant Products sold under the name SNC,
A non-crosslinked copolymer (Genapol LA-070) obtained from 91.5 mol% AMP and 8.5 mol% methacrylic ester of a C ₁₂ -C ₁₄ alcohol containing 7 oxyethylene groups, for example Aristoflex by Clariant. Items sold under the name LNC,
and blends thereof.

These copolymers are suitable for obtaining stable emulsions with very variable textures ranging from sprayable liquids to creams and having very good cosmetic qualities.

These polymers exhibit the advantage of being relatively insensitive to pH changes of values between 4 and 8, which are standard values for cosmetic compositions.

The amphiphilic polymer derived from AMPS can exhibit a weight average molar mass in the range from 50 000 to 10 000 000, more preferably from 100 000 to 8 000 000, even more preferably from 200 000 to 3 000 000.

According to a preferred embodiment of the invention, (c) the amphiphilic polymer is polyacrylamide/C13-14 isoparaffin/laureth-7, acrylamide/sodium acryloyldimethyltaurate copolymer/isohexadecane/polysorbate 80, ammonium acryloyldimethyltaurate/ It may be selected from methacrylic acid steareth 25 crosspolymer and mixtures thereof.

The amount of (c) amphiphilic polymer in the composition according to the invention may be at least 0.01% by weight, preferably at least 0.05% by weight, more preferably at least 0.1% by weight, based on the total weight of the composition.

On the other hand, the amount of (c) amphiphilic polymer in the composition according to the invention may be up to 10% by weight, preferably up to 5% by weight, more preferably up to 1% by weight, based on the total weight of the composition. good.

The amount of (c) amphiphilic polymer in the composition according to the invention is therefore from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% by weight relative to the total weight of the composition. % to 1% by mass.

(water)
The composition according to the invention comprises (d) water.

The amount of (d) water in the composition according to the invention may be at least 50% by weight, preferably at least 60% by weight, more preferably at least 70% by weight, based on the total weight of the composition.

The amount of (d) water in the composition according to the invention may be up to 95% by weight, preferably up to 90% by weight, more preferably up to 85% by weight, based on the total weight of the composition.

Therefore, the amount of (d) water in the composition according to the invention is from 50% to 95% by weight, preferably from 60% to 90% by weight, more preferably from 70% to 85% by weight, relative to the total weight of the composition. It may be in the range of % by mass.

(silicone oil)
The composition according to the invention may comprise (a) at least one silicone oil different from (e) an amino silicone. A single type of silicone oil may be used, or two or more different types of silicone oil may be used in combination.

By "silicone oil" herein is meant a silicone compound or silicone material that is in liquid or paste form at room temperature (25° C.) under atmospheric pressure (760 mmHg). As the silicone oil, silicone oils commonly used in cosmetics may be used alone or in combination.

Silicones or organopolysiloxanes are defined, for example, by Walter NOLL in "Chemistry and Technology of Silicones" (1968), Academic Press. These may be volatile or nonvolatile.

Therefore, (e) silicone oil may be selected from volatile silicones, non-volatile silicones, and mixtures thereof.

Therefore, (e) silicone oil is either at least one volatile silicone oil or at least one non-volatile silicone oil, or both at least one volatile silicone oil and at least one non-volatile silicone oil. May include.

The volatile or non-volatile silicones may be selected from linear, branched or cyclic silicones, optionally modified with at least one organofunctional moiety or group.

For example, (e) silicone oils may include polydialkylsiloxanes such as polydimethylsiloxane (PDMS), polyalkylarylsiloxanes such as phenyltrimethicone, polydiarylsiloxanes, as well as poly(oxyalkylene) moieties or groups, amide moieties or groups. , alkoxy or alkoxyalkyl moieties or groups, hydroxyl or hydroxylated moieties or groups, acyloxy or acyloxyalkyl moieties or groups, carboxylic acid or carboxylate moieties or groups, acrylic moieties or groups, polyamide moieties or groups, and oxazoline moieties. The polysiloxane may be selected from the group consisting of organically modified polysiloxanes containing at least one organic functional moiety or group.

(e) Where the silicone oil is volatile, (a) the silicone oil may be selected from those having a boiling point in the range from 60°C to 260°C, such as:
(i) Cyclic silicones, such as polydialkylsiloxanes containing from 3 to 7, such as from 4 to 6, silicon atoms. Non-limiting examples of such siloxanes include, for example, octamethylcyclotetrasiloxane sold under the trade names VOLATILE SILICONE® 7207 by UNION CARBIDE and SILBIONE® 70045 V2 by RHODIA. , decamethylcyclopentasiloxane marketed under the trade names VOLATILE SILICONE® 7158 by UNIONCARBIDE and SILBIONE® 70045 V5 by RHODIA, KF-995 by Shin-Etsu Chemical Co., Ltd., and e.g. Dodecamethylcyclohexasiloxane (INCI: cyclohexasiloxane), marketed under the trademark PMX-246 and by Dow Corning under the trademark DC246 Fluid, as well as mixtures thereof. Cyclomethicones, such as those marketed by DOW CORNING under the reference names DC 244, DC 245, DC 344, DC 345, and DC 246, may also be used. Cyclocopolymers of the dimethylsiloxane/methylalkylsiloxane type may also be used, such as SILICONE VOLATILE® FZ 3109, marketed by UNION CARBIDE, with the following formula:

(In the formula,

Combinations of cyclic silicones, such as polydialkylsiloxanes, with silicon-derived organic compounds, such as octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50/50) mixtures, and octamethylcyclotetrasiloxane and oxy-1,1 '-(Hexa-2,2,2',2',3,3'-trimethylsilyloxy)bis-neopentane mixtures may also be used; and
(ii) Linear volatile polydialkylsiloxanes containing 2 to 9 silicon atoms. A non-limiting example of such a compound is, for example, decamethyltetrasiloxane, sold under the trade name "SH-200" by the company TORAY SILICONE. Silicones belonging to this class are also described, for example, in Cosmetics and Toiletries, Volume 91, January 1976, pages 27-32, TODD & BYERS, "Volatile Silicone Fluids for Cosmetics".

(e) If the silicone oil is volatile, (e) the silicone oil may be selected from cyclic silicones.

On the other hand, (e) silicone oil may be selected from non-volatile silicones such as polydialkylsiloxanes, polyalkylarylsiloxanes, polydiarylsiloxanes, and organically modified polysiloxanes.

According to one embodiment, (e) the silicone oil may be selected from non-volatile polydialkylsiloxanes, such as polydimethylsiloxanes with trimethylsilyl end groups, known under the trade name dimethicone.

Non-limiting examples of commercially available products corresponding to such polydialkylsiloxanes include:
SILBIONE® fluids of the 47 and 70 047 series, as well as MIRASIL® fluids marketed by the company RHODIA, e.g. 70 047 fluid V 500000;
MIRASIL® series fluids marketed by RHODIA;
200 series fluids marketed by DOW CORNING, e.g. DC200 with a viscosity of 60,000 mm ² /s;
XIAMETER® PMX-200 SILICONE FLUID 60000CS marketed by Dow Corning;
GENERAL ELECTRIC's VISCASIL® fluid, and some of GENERAL ELECTRIC's SF series fluids (e.g. SF 96 and SF 18); and
Fluid marketed by DOW CORNING under the reference name DC 1664.

Products marketed under the trade names "ABIL Wax® 9800 and 9801" by GOLDSCHMIDT, which belong to this class of polydialkylsiloxanes and are polydialkyl (C ₁ -C ₂₀ ) siloxanes. It may also be used.

The polyalkylarylsiloxane may be selected from polydimethyl/methylphenylsiloxanes, linear and/or branched polydimethyl/diphenylsiloxanes.

Non-limiting examples of such polyalkylarylsiloxanes include products sold under the following trade names:
SILBIONE (registered trademark) fluid of the 70641 series manufactured by RHODIA; RHODORSIL (registered trademark) fluid of the 70 633 and 763 series manufactured by RHODIA;
Phenyltrimethicone fluid marketed by DOW CORNING under the reference name DOW CORNING 556 COSMETIC GRADE FLUID;
PK series silicones from BAYER, such as the PK20 product;
BAYER PN, PH series silicones, such as PN1000 and PH1000 products; and
Several SF series fluids manufactured by GENERAL ELECTRIC, such as SF1023, SF1154, SF1250, and SF1265.

Organomodified silicones which may be used according to the invention include, but are not limited to, silicones, such as at least one of the silicones defined above and linked directly or by means of hydrocarbon groups in their structure. Some contain one organic functional moiety or group.

Organomodified silicones can include, for example, polyorganosiloxanes containing:
Polyethyleneoxy and/or polypropyleneoxy moieties, optionally C ₆ to C ₂₄ alkyl moieties, such as those sold under the trade name DC 1248 by DOW CORNING and DCQ2-5220 and SILWET® L722 by UNION CARBIDE. , L7500, L77, and L711fluid, and PEG12 dimethicone, sold under the trade name XIAMETER® OFX-0193FLUID by DOW CORNING, and Q2 by DOW CORNING. A product called (C ₁₂ ) alkylmethicone copolyol, sold under the trade name 5200;
Alkoxylated moieties, such as the products marketed by SWS SILICONES under the trade name "SILICONE COPOLYMER F-755" and by GOLDSCHMIDT under the trade names ABIL WAX® 2428, 2434 and 2440;
hydroxylated moieties, for example polyorganosiloxanes containing hydroxyalkyl functional groups, as described in FR 8516334;
Acyloxyalkyl moieties, such as the polyorganosiloxanes described in U.S. Pat. No. 4,957,732;
Anionic moieties of the carboxylic acid type, such as the product described in European Patent No. 0 186 507, marketed by Chisso Corporation, as well as anionic moieties of the carboxylalkyl type, such as the product marketed by Shin-Etsu Chemical Co., Ltd. 2-hydroxyalkyl sulfonate; and 2-hydroxyalkyl thiosulfate, such as "ABIL® S201" and "ABIL® Products marketed under the trade name “S255”;
Hydroxyacylamino moieties, such as the polyorganosiloxanes described in European Patent Application No. 0342834. A non-limiting example of a comparable commercially available product is product Q2-8413, marketed by DOW CORNING;
Acrylic moieties, such as the products marketed by 3M under the names VS80 and VS70, and oxazoline moieties.

The silicones which may be used according to the invention contain one or two oxazoline groups, such as poly(2-methyloxazoline-b-dimethylsiloxane-b-2-methyloxazoline) and poly(2-ethyl-2-oxazoline- dimethylsiloxane). Products marketed by Kao Corporation under the reference names OX-40, OS-51, OS-96 and OS-88 may also be used.

Polydimethylsiloxanes with dimethylsilanol end groups may also be used, such as those sold under the tradename dimethiconol (CTFA), such as the 48 series fluids sold by the company RHODIA.

When the (e) silicone oil is non-volatile, in preferred embodiments the (e) silicone oil may be selected from polydimethylsiloxanes, organo-modified polydimethylsiloxanes, and combinations thereof. The organically modified polydimethylsiloxane may be selected from dimethiconol. The viscosity of the polydimethylsiloxane may be from 100,000 cst to 1,000,000 cst, preferably from 150,000 cst to 700,000 cst, more preferably from 200,000 cst to 400,000 cst. The viscosity of the organically modified polydimethylsiloxane may be from 10,000 cst to 100,000 cst, preferably from 20,000 cst to 70,000 cst, more preferably from 30,000 cst to 50,000 cst.

The amount of (e) silicone oil in the composition according to the invention may be 0.1% by weight or more, preferably 0.5% by weight or more, more preferably 1% by weight or more, based on the total weight of the composition.

On the other hand, the amount of (e) silicone oil in the composition according to the invention may be 15% by weight or less, preferably 10% by weight or less, more preferably 5% by weight or less, based on the total weight of the composition.

The amount of (e) silicone in the composition according to the invention therefore ranges from 0.1% to 15% by weight, preferably from 0.5% to 10% by weight, more preferably from 1% to 5% by weight, relative to the total weight of the composition. It may be in the range of % by mass.

(non-silicone oil)
The composition according to the invention may comprise (f) at least one non-silicone oil. A single type of non-silicone oil may be used or a combination of two or more different types of non-silicone oil may be used.

By "non-silicone oil" herein is meant a non-silicone compound or material that is in the form of a liquid or paste at room temperature (25° C.) under atmospheric pressure (760 mmHg). As non-silicone oils, those commonly used in cosmetics can be used alone or in combinations thereof.

(f) The non-silicone oil may be selected from non-polar oils, such as hydrocarbon oils; polar oils, such as vegetable or animal oils, ester oils, and ether oils; and mixtures thereof.

(f) The non-silicone oil may be selected from the group consisting of oils of vegetable or animal origin, synthetic oils, hydrocarbon oils and fatty alcohols.

Examples of vegetable oils include linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, Mention may be made of soybean oil, peanut oil, and mixtures thereof.

As examples of animal oils, mention may be made, for example, of squalene and squalane.

As examples of synthetic oils, mention may be made of alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

The ester oil preferably contains a saturated or unsaturated, linear or branched C ₁ -C 26 aliphatic mono- or polyacid and a saturated or unsaturated, linear or branched C ₁ -C ₂₆ aliphatic mono- or polyacid. It is a liquid ester with ₂₆ aliphatic monohydric alcohol or polyhydric alcohol, and the number of carbon atoms in the ester is 10 or more.

Preferably, for esters of monoalcohols, at least one of the alcohols and acids from which the esters of the invention are derived is branched.

Among monoesters of monoacids and monoalcohols, ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, Mention may be made of isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

Esters of C ₄ -C ₂₂ dicarboxylic or tricarboxylic acids and C ₁ -C ₂₂ alcohols, as well as monocarboxylic acids, dicarboxylic acids or tricarboxylic acids, and non-sugars C ₄ -C ₂₆ dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy Esters of alcohols can also be used.

Diethyl sebacate, isopropyl lauroyl sarcosinate, diisopropyl sebacate, bis(2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis(2-ethylhexyl) adipate, diisopropyl adipate Isostearyl, bis(2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl diheptanoate Mention may especially be made of the glycols diethylene glycol diisononanoate.

As ester oils it is possible to use sugar esters and diesters of C ₆ to C ₃₀ , preferably C ₁₂ to C ₂₂ fatty acids. It will be recalled that the term "sugar" means an oxygen-containing hydrocarbon-based compound containing some alcohol function and containing at least 4 carbon atoms, with or without an aldehyde or ketone function. Ru. These sugars may be monosaccharides, oligosaccharides or polysaccharides.

Examples of suitable sugars that may be mentioned are sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and derivatives thereof, especially alkyl derivatives, such as methyl derivatives. , such as methylglucose.

Sugar esters of fatty acids are particularly selected from the group comprising esters or ester mixtures of the aforementioned sugars with linear or branched, saturated or unsaturated C ₆ -C ₃₀ , preferably C ₁₂ -C ₂₂ fatty acids. You can. If these compounds are unsaturated, they may have 1 to 3 conjugated or nonconjugated carbon-carbon double bonds.

Esters according to this variant can also be selected from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

These esters are, for example, oleates, laurates, palmitates, myristates, behenates, coconut fatty acid esters, stearates, linoleates, linolenates, caprates and arachidonic esters. , or mixtures thereof, such as mixed esters of oleopalmitic acid, oleostearic acid and palmitostearic acid, and pentaerythrityl tetraethylhexanoate, among others.

More particularly monoesters and diesters are used, in particular monooleic or dioleic acid, stearic acid, behenic acid, oleopalmitic acid, linoleic acid, linolenic acid and sucrose oleostearate, glucose or methylglucose.

An example that may be mentioned is the product sold by the company Amerchol under the name Glucate® DO, which is methylglucose dioleate.

Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octoate, octyldodecyl octoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexanoate. -Ethylhexyl, 2-ethylhexyl octoate, 2-ethylhexyl (caprylic/capric acid), methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, lauric acid Isohexyl, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, Mention may be made of diethyl sebacate, and mixtures thereof.

Examples of artificial triglycerides include caprylic caprylyl glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, tri(capric/caprylic) glyceryl, and tri(capric/caprylic/linolenic) glyceryl.

Examples of hydrocarbon oils include:
- C ₆ to C ₁₆ lower alkanes, linear or branched and optionally cyclic. Examples that may be mentioned are hexane, undecane, dodecane, tridecane and isoparaffins such as isohexadecane, isododecane and isodecane; and
- linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecene and hydrogenated polyisobutenes, such as Parleam®, and squalane.

Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oils (e.g. liquid paraffin), paraffin, vaseline or petroleum, naphthalene, etc.; hydrogenated polyisobutene, isoeicosane, etc. and decene/butene copolymers; and mixtures thereof.

The term "fat" in fatty alcohols refers to those containing a relatively large number of carbon atoms. Therefore, alcohols having 4 or more carbon atoms, preferably 6 or more carbon atoms, more preferably 12 or more carbon atoms are included within the scope of fatty alcohols. Fatty alcohols can be saturated or unsaturated. Fatty alcohols may be linear or branched.

Fatty alcohols have the structure R-OH (where R is a saturated and unsaturated alcohol containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, more preferably from 12 to 20 carbon atoms). (selected from linear and branched groups). In at least one embodiment, R may be selected from C ₁₂ -C ₂₀ alkyl and C ₁₂ -C ₂₀ alkenyl groups. R may or may not be substituted with at least one hydroxyl group.

Examples of fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, Mention may be made of erucil alcohol, and mixtures thereof.

Preferably, the fatty alcohol is a saturated fatty alcohol.

The fatty alcohols are therefore linear or branched, saturated or unsaturated C ₆ -C ₃₀ alcohols, preferably linear or branched, saturated C ₆ -C ₃₀ alcohols, more preferably linear or branched, saturated C ₁₂ -C ₂₀ alcohols.

As used herein, the term "saturated fatty alcohol" refers to alcohols having long aliphatic saturated carbon chains. Preferably, the saturated fatty alcohol is selected from any linear or branched saturated C ₆ to C ₃₀ fatty alcohol. Among the linear or branched saturated C ₆ -C ₃₀ fatty alcohols, linear or branched saturated C ₁₂ -C ₂₀ fatty alcohols can preferably be used. More preferably any linear or branched saturated C ₁₆ to C ₂₀ fatty alcohol may be used. Even more preferably branched C ₁₆ to C ₂₀ fatty alcohols may be used.

As examples of saturated fatty alcohols, mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, cetyl alcohol, stearyl alcohol, octyldodecanol, hexyldecanol, or mixtures thereof (eg, cetearyl alcohol), as well as behenyl alcohol, can be used as the saturated fatty alcohol.

According to at least one embodiment, the fatty alcohol used in the composition according to the invention is preferably selected from octyldodecanol, hexyldecanol and mixtures thereof.

The amount of (f) non-silicone oil in the composition according to the invention may be at least 1% by weight, preferably at least 2% by weight, more preferably at least 3% by weight, based on the total weight of the composition.

On the other hand, the amount of (f) non-silicone oil in the composition according to the invention may be up to 15% by weight, preferably up to 10% by weight, more preferably up to 5% by weight, based on the total weight of the composition. .

The amount of (f) non-silicone in the composition according to the invention is therefore from 1% to 15% by weight, preferably from 2% to 10% by weight, more preferably from 3% by weight, relative to the total weight of the composition. It may be in the range of 5% by mass.

(polyol)
The composition according to the invention may contain at least one polyol. A single type of polyol may be used or a combination of two or more different types of polyols may be used.

The term "polyol" as used herein means an alcohol having two or more hydroxy groups and does not include sugars or derivatives thereof. Sugar derivatives include sugar alcohols obtained by reducing one or more carbonyl groups of sugars, as well as hydrogen atoms or atoms in one or more of these hydroxy groups, which have at least one substituent, e.g. alkyl There are sugars or sugar alcohols which are replaced with groups, hydroxyalkyl groups, alkoxy groups, acyl groups or carbonyl groups.

The polyol may be a C 2 to C ₁₂ polyol, preferably a C ₂ to C ₉ polyol, containing at least 2 hydroxy groups, preferably ₂ to 5 hydroxy groups.

The polyol may be a natural polyol or a synthetic polyol. The polyol may have a linear, branched or cyclic molecular structure.

Polyols can be selected from glycerin and its derivatives, and glycols and its derivatives. Polyols include glycerin, diglycerin, polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, 1,2-propanediol, 1,3 -propanediol, and 1,5-pentanediol.

(c) the polyol has 3 or more carbon atoms and is from the group consisting of glycerin, ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, butylene glycol, pentylene glycol, hexylene glycol, and mixtures thereof; There are cases where it is preferable to be selected.

More preferably, the polyol has a refractive index of 1.4 or higher.

The amount of polyol oil in the composition according to the invention may be at least 1% by weight, preferably at least 2% by weight, more preferably at least 3% by weight, relative to the total weight of the composition.

On the other hand, the amount of polyol in the composition according to the invention may be up to 15% by weight, preferably up to 10% by weight, more preferably up to 5% by weight, relative to the total weight of the composition.

The amount of polyol in the composition according to the invention therefore ranges from 1% to 15% by weight, preferably from 2% to 10% by weight, more preferably from 3% to 5% by weight, relative to the total weight of the composition. It may be a range.

(other ingredients)
Compositions according to the invention may also include at least one optional or additional ingredient.

Optional or additional ingredients include anionic, cationic, nonionic or amphoteric polymers; anionic, cationic, nonionic or amphoteric surfactants; organic or inorganic UV-screening agents; peptides and their derivatives; proteins Hydrolysates; swelling and penetrating agents; agents effective for hair removal; antidandruff agents; natural or synthetic water or oil thickeners; suspending agents; sequestrants; dyes; sunscreens; vitamins or provitamins; fragrances; preservatives, co-preservatives, stabilizers; and mixtures thereof.

The amount of optional or additional components is, but is not limited to, from 0.01% to 30% by weight, preferably from 0.1% to 20% by weight, more preferably 1% by weight, relative to the total weight of the composition according to the invention. to 10% by mass.

[Preparation]
Compositions according to the invention can be prepared by mixing the essential ingredients described above and optionally the optional ingredients described above.

The methods and means for mixing the above essential and optional ingredients are not limited. Any conventional methods and means can be used to mix the above-described essential and optional ingredients to prepare compositions according to the invention.

[form]
The composition according to the invention may be a leave-on type or a rinse-off type, preferably a leave-off type.

[Method]
The composition according to the invention can preferably be used as a cosmetic composition. Cosmetic compositions can be used to treat keratin fibers. Keratin fibers can be hair, eyelashes, eyebrows, etc.

In particular, the composition according to the invention may be intended for application to keratin fibers, such as hair. The composition according to the invention can therefore be used for cosmetic methods for keratin fibers.

The invention also relates to a method for keratin fibers, preferably hair, comprising applying a composition according to the invention to the keratin fibers.

The keratin fibers to which the composition according to the invention has been applied may be left for the appropriate time required to treat the keratin fibers. The length of time for each treatment is not limited, but can be from 1 to 10 minutes, preferably from 1 to 5 minutes, more preferably from 1 to 3 minutes. Thus, for example, the total time for treatment according to the invention may be 3 to 30 minutes, preferably 3 to 15 minutes, more preferably 3 to 10 minutes.

Keratin fibers may be treated at room temperature. Alternatively, the keratin fibers may be heated at temperatures of 15°C to 45°C, preferably 20°C to 40°C, more preferably 25°C, before and/or during and/or after the step of applying the composition according to the invention to the keratinous fibers. to 35°C, even more preferably from 27°C to 35°C.

Keratin fibers to which the composition according to the invention has been applied may be rinsed or unrinsed.

The method, preferably the cosmetic method, according to the invention provides cosmetic effects on keratin fibers, e.g. hair, of conditioning and manageability, e.g. smoothness (e.g. smooth combing even when the keratin fibers are wet, and/or or a smooth feel when the keratin fibers are dry), ease of finger passage through the keratin fibers, a moist feel, and volume down control (thus, the anti-frizz properties of the composition according to the invention (This may make it easier to style the shape of keratin fibers.) The term "volume reduction" means that the spreading of the keratin fibers is reduced or controlled so that the style of the keratin fibers can be better controlled.

In particular, the method according to the invention makes it possible to impart higher levels of smoothness, wettability, volume control, etc. to keratin fibers, such as hair.

The invention will now be explained in more detail by way of examples. However, these examples should not be construed as limiting the scope of the invention.

(Example 1 and Comparative Examples 1 to 3)
[Preparation]
Each composition for hair according to Example 1 and Comparative Examples 1 to 3 was prepared by mixing the ingredients shown in Table 1. All numerical values relating to the amounts of ingredients are based on "% by weight" of the active ingredient.

[evaluation]
(Stability)
Immediately after preparing the compositions according to Example 1 and Comparative Examples 1 to 3, the appearance of each composition was visually observed at room temperature and classified according to the following evaluation criteria. The results are shown in the "Stability" row in Table 1.
Good: Stable (no separation)
Defective: Unstable (with separation)

Further evaluation of Comparative Examples 2 and 3 was not possible since the compositions according to Comparative Examples 2 and 3 were unstable (phase separation occurred).

(smoothness)
The same amount of each composition according to Example 1 and Comparative Example 1 was applied to a hair swatch (1 g, 27 cm). This was repeated twice with two more hair swatches. Therefore, three hair swatches were prepared in Example 1, and three hair swatches were also prepared in Comparative Example 1. These were maintained at an ambient temperature of 24° C. and a relative humidity of 40% for 30 minutes.

The COF (coefficient of friction) of each hair sample was measured using Handy Rub Tester Model TL701 (Trinity Lab). First, a hair sample was placed on a plate and its root side was fixed with a hair clip. The sensor was then applied onto the hair swatch and moved from the root of the hair strand to the tip to measure the COF of the hair swatch. Measurements were repeated three times. Therefore, nine COF data were obtained for Example 1 and Comparative Example 1. The average of the COF data of 9 cases was determined as the COF value. The results are shown in the row labeled "Smoothness" in Table 1.

(Sensory evaluation)
Texture of Compositions The texture of each composition according to Example 1 and Comparative Example 1 was evaluated by six panelists according to the following criteria.
Good: There is no sensation of melting when rubbed with fingers.Poor: There is no sensation of melting when rubbed with fingers.

The results are shown in Table 1 in the row labeled "Texture of Composition."

Smoothness, Moisture, Difficulty, and Anti-Frizz Using a hair swatch, apply each composition according to Example 1 and Comparative Example 1 to the hair swatch, and subsequently drying. The following criteria were evaluated by six panelists: low hair loss), ease of passing through fingers, and anti-frizz effect. Benchmark means a hair swatch to which no composition has been applied.
+++: Significantly good
++: Good
+: slightly better
0: Same as benchmark
-: Slightly defective
--:Bad
---: Extremely poor

The average of the evaluations by the panelists is shown in the rows labeled "Smoothness," "Moist feeling," "Runability," and "Anti-frizz" in Table 1.

Table 1 shows that only the compositions according to Example 1 and Comparative Example 1 were stable.

The composition according to Example 1 is able to impart excellent smoothness, which is demonstrated not only in the sensory evaluation but also in the COF. Table 1 also shows that the composition according to Example 1 was able to provide a unique texture as well as moisturizing, fingerability, and volume down control (anti-frizz).

The composition according to Comparative Example 1 did not contain amino silicone. The composition according to Comparative Example 1 was able to exhibit a unique texture. The composition according to Comparative Example 1 was also able to impart some smoothness, but this was inferior to the composition according to Example 1. On the other hand, the composition according to Comparative Example 1 could not provide cosmetic effects regarding moist feeling, ease of passing with fingers, and volume reduction control (anti-frizzy hair).

The composition according to Comparative Example 2 did not contain any hydrophilic acrylic polymer. The composition according to Comparative Example 3 did not contain any amphiphilic polymer. The compositions according to Comparative Examples 2 and 3 were unstable. Therefore, these are not preferred for cosmetic applications.

Claims (14)

(a) at least one amino silicone;
(b) at least one hydrophilic acrylic polymer;
(c) ammonium acryloyldimethyltaurate/steareth methacrylate-25 crosspolymer ; and
(d) contains water;
A composition for treating keratin fibers, wherein said (b) hydrophilic acrylic polymer is selected from acryloyldimethyltaurate polymers. 2. The composition of claim 1, wherein (a) the amino silicone is aminopropyl dimethicone. 3. The composition according to claim 1, wherein the amount of (a) amino silicone in the composition is from 0.01% to 5% by weight based on the total weight of the composition. (b) the hydrophilic acrylic polymer is selected from the group consisting of sodium acrylate/sodium acryloyldimethyltaurate copolymer, acrylamide/sodium acryloyldimethyltaurate copolymer, polyacryloyldimethylammonium taurate, acryloyldimethylammonium taurate/VP copolymer, and combinations thereof. 4. A composition according to any one of claims 1 to 3, wherein the composition is 5. A composition according to any one of claims 1 to 4, wherein the amount of (b) hydrophilic acrylic polymer in the composition is from 0.01% to 10% by weight relative to the total weight of the composition. Any one of claims 1 to 5 , wherein the amount of (c) ammonium acryloyldimethyltaurate/steareth methacrylate-25 crosspolymer in the composition is from 0.01% to 10% by weight relative to the total weight of the composition. The composition described in Section. 7. A composition according to any one of claims 1 to 6 , wherein the amount of (d) water in the composition ranges from 50% to 95% by weight relative to the total weight of the composition. 8. The composition according to any one of claims 1 to 7 , further comprising (e) at least one silicone oil in addition to (a) the amino silicone. 9. A composition according to claim 8 , wherein (e) silicone oil is selected from non-volatile silicone oils. 10. A composition according to claim 8 or 9 , wherein (e) silicone oil is selected from polydimethylsiloxane. 11. A composition according to any one of claims 8 to 10 , wherein the amount of (e) silicone oil in the composition ranges from 0.1% to 15% by weight relative to the total weight of the composition. 12. A composition according to any one of claims 1 to 11 , further comprising (f) at least one non-silicone oil. 13. The composition according to claim 1, which is a leave-on type or a rinse-off type. 14. A cosmetic method for keratin fibers, comprising the step of applying the composition according to any one of claims 1 to 13 to keratin fibers.