WO2020118403A1

WO2020118403A1 - Cosmetic composition for lip makeup

Info

Publication number: WO2020118403A1
Application number: PCT/BR2019/050536
Authority: WO
Inventors: Milene HARAGUCHI PADILHA; Camila Andréia BERNARDON URIO; Clarice SCLIAR SASSON; Larissa Carmona ZONTA DOS SANTOS; Gustavo De Campos Dieamant; Paulo Alexandre DOS SANTOS ROSEIRO
Original assignee: Botica Comercial Farmacêutica Ltda.
Priority date: 2018-12-12
Filing date: 2019-12-12
Publication date: 2020-06-18
Also published as: BR102018075788A8; BR102018075788A2

Abstract

A cosmetic composition used for lip makeup is described. The cosmetic composition is applied to the lips to form a layer comprising a resistant film on the surface of the lips. This formed film promotes full adherence, with no loss, smudging or transfer in situations such as eating, kissing, toothbrushing, abrasion, inter alia. The objective of the present invention is to provide a cosmetic composition for lip makeup comprising at least one volatile silicone oil; dimethicone/vinyl dimethicone crosspolymer, nylon-611/dimethicone copolymer; at least one pigmentation agent; at least one trimethylsiloxysilicate resin; at least two silsesquioxane resins with the empirical molecular formula [RSiO3/2]n, in which n is greater than 1, R independently comprises alkyl groups of 10 to 45 carbon atoms; and in this silsesquioxane resin the groups R include at least 40% (in moles) of propyl groups; and a volatile-solvent-based binary component associated with a crosspolymer in the form of gum silicone resin. The cosmetic composition has been tested for resistance against abrasion with and without the presence of vegetable oil, flexibility, hydrophobicity, stickiness and resistance to saliva. The cosmetic composition showed no transfer in the tests carried out, resisting abrasion and saliva situations (both simulating kissing), vegetable oil (simulating meals) and toothpaste, and also showed flexibility (for comfortable application), hydrophobicity (for rapid drying after application) and durability.

Description

DESCRIPTION REPORT “Cosmetic makeup for lip makeup”

[001] The present invention relates to a cosmetic composition used for lip makeup. The cosmetic composition is applied to the lips forming a layer that consists of a film of resistant film on the surface of the lips. This formed film promotes complete adherence, without losses, smudges or transfers in situations such as feeding, kissing, tooth brushing, abrasion, among others.

Description of the state of the art

[002] It is common in technologies related to cosmetic compositions for lip application problems such as the product's low resistance to sweat, meals, water, friction and kissing. More specifically in relation to this last aspect, the formulations are short-lived, easily transferred after the kiss and leave smudges in the mouth, requiring re-application throughout the day in order to maintain the color of the cosmetic composition. It is also common for technologies that mention cosmetic formulations with properties of flexibility, non-stickiness and comfort without, however, proving them through tests. Examples of application of these technologies are absent and the effects are not proven.

[003] In this context, the document US20120064019 describes a plurality of cosmetic compositions, among them a composition comprising the following components: film-forming agents comprising siloxane resin (comprising trimethylsiloxysilicate) and silsesquioxane resin (comprising polypropylsilsesquioxane and C1-C8 alkylldimethylsilyl polypropylsesquioxane); non-volatile oil (including dimethicone and paraffin); rheological agents (comprising dimethicone / vinyl dimethicone and Nylon-61 1 / dimethicone cross-polymers); mineral filler (comprising silica, silica dimethicone silylate and the hydrophobic treatment agents for silica based on aluminum dimiristate and triethoxyprilil silane);

REPLACEMENT SHEETS (RULE 26) emulsifiers (comprising sodium stearoyl glutamate); organic solvent (including isododecane); and common cosmetic ingredients such as dyes, fragrances and antioxidants (being mentioned the sterically hindered phenol, from the family of organic compounds that includes tocopherol). This document does not describe tests that prove the application of this product, that is, there is no data that shows adherence of this cosmetic composition to the skin, flexibility, non-stickiness, nor does it prove the absence of losses, smudges or transfers in situations such as food, kiss, tooth brushing, abrasion among others.

[004] US20130236408 describes cosmetic compositions based on supramolecular polymers, functional branched polymers, clear silicone fluids, silicone resin copolymers, fluid silicones and opacifying agents. Among the possible cosmetic compositions covered, a composition with the following raw materials is described: cross-polymer based on silicone resin trimethylsiloxysilicate / dimethicone, trimethylsiloxysilicate, dimethicone, wax, silica, silica dimethicone silylate, steroidal sodium glutamate, isododecane, dyes and fragrances. Said cosmetic compositions do not make use of additional film-forming agents, such as C30-C45 alkyldimethylsilyl polypropylsesquioxane and polypropylsesquioxane. When associated with the cross-polymer based on trimethylsiloxysilicate / dimethicone and trimethylsiloxysilicate, these cited agents confer synergistic properties for film formation in the application of the product, providing greater adhesion, comfort, durability and flexibility. Thus, the absence of these components in the cosmetic compositions described in the mentioned document compromises these commented properties.

[005] In this way, there are no technologies in the state of the art that comprise a cosmetic composition for lip makeup conferring resistance to saliva, toothpaste and abrasion in the absence and presence of

REPLACEMENT SHEETS (RULE 26) oil (mimicking the situations of meals, kisses and tooth brushing), flexibility, durability, non-stickiness, hydrophobicity and comfort.

Objectives of the invention

[006] Thus, it is the objective of the present invention to provide in a single cosmetic composition for lip makeup resistance to saliva, toothpaste, meals and that comprises flexibility in the film formed after application to the skin, durability, non-stickiness on the lips, hydrophobicity and comfort.

Brief description of the invention

[007] The object of the present invention is a cosmetic composition for lip makeup comprising: at least one volatile silicone oil; dimethicone / vinyl dimethicone cross polymer; Nylon-61 1 / dimethicone copolymer; at least one pigment agent; at least one trimethylsiloxysilicate resin; at least two silsesquioxane resins of empirical molecular formula [RSiC> 3/2)] n, where n is greater than 1, R independently comprises alkyl groups of 10 to 45 carbon atoms; still in this silsesquioxane resin, the R groups comprise at least 40% (by mol) of propyl groups; and a volatile solvent-based binary component associated with a cross-linked polymer in the form of gum silicone resin.

Brief description of the drawings

[008] Figure 1 - Photo of the Elcometer Washability equipment;

[009] Figures 2A and 2B - Visual results of the abrasion resistance test in the absence of oil;

[010] Figure 3 - Graph of the results of the abrasion resistance tests in the absence of oil showing the color variation as a function of the number of cycles;

REPLACEMENT SHEETS (RULE 26) [01 1] Figures 4A and 4B - Visual results of the abrasion resistance test in the presence of olive oil;

[012] Figure 5 - Graph of the results of the abrasion resistance tests in the presence of the oil showing the color variation as a function of the number of cycles;

[013] Figures 6A and 6B - Visual results of the flexibility test;

[014] Figure 7 - Scheme for measuring the contact angle in relation to the tangent of the drop of water present on a surface;

[015] Figure 8 - Visual results of hydrophobicity tests before abrasion tests;

[016] Figure 9 - Visual results of hydrophobicity tests after abrasion tests;

[017] Figure 10 - Diastron Equipment for Testing Tackiness;

[018] Figure 1 1 - Graph of the results of the stickiness tests showing the stickiness as a function of time; and

[019] Figure 12 - Samples of lipsticks 1, 4, 5, 7 and reference applied to the forearm of a volunteer (application area of 12.6 cm ² ).

Detailed description of the invention

[020] According to a preferred embodiment, the cosmetic composition for lip makeup, object of this invention, comprises at least one volatile silicone oil, present in the composition in quantities between 1 to 50%. This oil assists in the quick drying of the product, providing greater comfort and less stickiness and makes the film formed by the film forming agents more flexible and less brittle. Volatile silicone oil is present in the composition as a major component, whose concentration can vary between 1 to 50%. In addition, this oil acts as the solvent for the siloxysilicate resin described below, which is one of the film forming agents of this composition. When solubilized in oil

REPLACEMENT SHEETS (RULE 26) of volatile silicone, the siloxysilicate resin is present in a concentration of 1 to 35%. A preferred and non-restrictive example of volatile silicone oil is dimethicone.

[021] In addition to volatile silicone oil, the present invention further comprises at least one viscosity regulator selected from cross-linked polymers based on dimethicone, copolymers based on polyamide / dimethicone and hydrocarbons.

[022] The cross-polymers based on dimethicone present in the cosmetic composition for lip makeup preferably comprise the cross-polymer dimethicone / vinyl dimethicone, present in quantities between 0.5 and 10%. This cross polymer is a powdered elastomer that provides opacity, quick drying and resistance to cosmetic makeup for lip makeup.

[023] Said polyamide in the polyamide / dimethicone copolymer is formed from the condensation of an aliphatic dicarboxylic acid and an aliphatic diamine where a terminal carboxylic acid of at least one dicarboxylic acid reacts with a terminal amine of at least one diamine forming at least an amide bond. The aforementioned dicarboxylic acid and diamine comprise between 6 and 20 carbon atoms. The polyamide / dimethicone-based copolymer is present in the composition in amounts between 1 and 15%. A preferred and non-restrictive example of a polyamide / dimethicone copolymer comprised in the present invention is the Nylon-61 1 / dimethicone copolymer. This viscosity regulator assists in the resistance of the composition to saliva, toothpaste and abrasion in the absence and presence of oil (mimicking the situations of meals, kisses and tooth brushing).

[024] Said hydrocarbons used in the cosmetic composition for lip makeup comprise the carbon chain alkanes between 18 and 40 carbon atoms, aliphatic, cyclic or mixed (simultaneously presenting aliphatic or cyclic units). Hydrocarbons are

REPLACEMENT SHEETS (RULE 26) present in the cosmetic makeup for lip makeup in quantities between 0.5 to 5%, preferably paraffin.

[025] In addition to the mentioned viscosity regulators, the present cosmetic makeup for lip makeup additionally comprises at least one opacifying agent, that is, with the function of drying the composition more quickly after being applied on the lips and, still, providing a “matte” / opaque effect. The opacifying agents are selected from the group comprising silica dimethicone silylate. In this context, silica reacts chemically with dimethicone silylate and increases the hydrophobicity of the cosmetic composition for lip makeup in order to facilitate the drying process of this cosmetic composition after application to the skin. These components are present in the cosmetic composition for lip makeup in the concentration of 1 to 10% of silica dimethicone silylate.

[026] Still with regard to cosmetic makeup for lip makeup, it also comprises conditioning agents in amounts between 0.01 to 5%. These agents include ionic surfactants, which can be anionic or cationic, preferably anionic surfactants. Anionic surfactants are selected from the group comprising alkyl sulfoacetates, polypeptides, alkyl polyglycosides, alkyl glutamates, alkyl sulfates, citrates and lactates, preferably alkyl glutamates. In the group of alkyl glutamate surfactants, a preferred and non-restrictive example of conditioning agent is sodium stearoyl glutamate. The conditioning agents are important in the cosmetic composition for lip makeup for the physical-chemical stability between hydrophobic and hydrophilic components present as a whole.

[027] Also, the cosmetic composition for lip makeup comprises pigments or dyes used as pigmentation agents being chosen according to the desired color for the composition. These agents are selected from groups comprising organic and / or inorganic pigments or dyes. In the composition, one or more

REPLACEMENT SHEETS (RULE 26) types of dyes mentioned and in any possible combination. The pigmentation agents are in this cosmetic composition for lip makeup in a concentration in the range of 1 to 30%.

[028] Still with regard to the cosmetic composition for lip makeup, it comprises aroma used as a fragrance and at least one antioxidant with the function of preventing oxidation of the composition, preferably, tocopherol acetate.

[029] In addition to the aforementioned components, the present cosmetic makeup for lip makeup features at least one film-forming agent acting in synergistic association in the formation of long-lasting, flexible, comfortable, resistant and non-brittle films. As film-forming agents, the present cosmetic makeup for lip makeup comprises at least one siloxysilicate resin, at least two silsesquioxane resins and a volatile solvent-based binary component associated with a cross polymer in the form of gum silicone resin, explained in details below.

[030] Siloxysilicate resins are silicone resins that form a rigid, long-lasting and resistant film and are present in the cosmetic composition for lip makeup in quantities between 1 to 35%. A preferred and non-restrictive example of siloxysilicate resin is trimethylsiloxysilicate resin.

[031] Silsesquioxane resins are more specific silicone resins in relation to the silicone resins themselves. The chemical structure of a silsesquioxane resin is shown in formula (I) below.

REPLACEMENT SHEETS (RULE 26) Formula (I)

[032] According to formula (I), the silsesquioxane resin has a structural unit represented in square brackets that is repeated n times. This structural unit has a silicon atom attached to three adjacent oxygen atoms and to a group R. This structural unit will be referred to throughout the description of the invention as the empirical molecular formula [RSi0 _3/2 )] _n · Each atom of oxygen represented in formula (I) is linked to the new repetitions [RS1O3 _/ 2)], defined quantitatively by the value of n. In the cosmetic makeup for lip makeup, n is greater than 1. The group R independently comprises alkyl groups of 10 to 45 carbon atoms and in this silsesquioxane resin the groups R also necessarily comprise at least 40% (by mol) of propyl groups - propyl groups are understood here to be alkyl groups of 3 carbon atoms. When the R groups comprise 100% (mole) of propyl groups, the resulting silsesquioxane resin is 0 polypropylsesquioxane. When the R groups comprise up to 99% (by mol) of propyl groups and the remainder comprises alkyl groups of 10 to 45 carbon atoms, the resulting silsesquioxane resin is 0 alkyldimethylsilyl polypropylsesquioxane. The cosmetic composition for lip makeup comprises at least two silsesquioxane resins and each of them is present in quantities between 1 and 15%. A preferred and non-restrictive example of silsesquioxane resins is 0 polypropylsilkoxane and 0 C30-C45 alkyldimethylsilyl polypropylsesquioxane. Preferably, both types of resin are simultaneously present in the cosmetic makeup for lip makeup.

[033] Silsesquioxane resins used as a film-forming agent, contribute to each other and in a way associated with siloxysilicate resins, to form a flexible, comfortable, long-lasting film with high resistance to saliva, toothpaste and abrasion in the absence and presence of olive oil (mimicking meal situations).

REPLACEMENT SHEETS (RULE 26) [034] In addition to these film-forming agents, the cosmetic makeup for lip makeup also comprises a volatile solvent associated with a crossed polymer in the form of silicone resin in gum. In this composition, the volatile solvent is selected from the group of volatile hydrocarbons of 8 to 16 carbon atoms. Preferred and non-restrictive examples of such hydrocarbons include isododecane, isodecane or isohexadecane, preferably isododecane. The volatile solvent has a high solubilization potential of the crossed polymer in the form of silicone resin in gum, as described in detail below. The presence of this solvent provides greater homogeneity of this polymer and the remaining film-forming agents of this composition, contributing to the formation of resistant films and with less drying time during lip application.

[035] The aforementioned cross-polymer, used as a film-forming agent, has the form of silicone resin in gum and this property contributes, in association with siloxysilicate resins and silsesquioxane resins, to the formation of a flexible, comfortable, long-lasting film durability and high resistance to saliva, toothpaste and abrasion in the absence and presence of oil (mimicking situations of meals, kisses and tooth brushing). The gum silicone resin is an evolution of the silicone resin, and gives to the composition, the formation of a film more resistant, lasting, flexible and comfortable. The formation of this film occurs briefly due to the rapid evaporation of the volatile solvent.

[036] The volatile solvent is associated with the crossed polymer in the form of silicone resin in gum forming a binary component, present in the cosmetic composition for lip makeup in the proportion of 1 to 35%. Said cross polymer is preferably trimethylsiloxysilicate / dimethicone.

Use of cosmetic makeup for lip makeup

[037] The use of cosmetic makeup for lip makeup, the object of this invention, is based on its application on the lips, as a

REPLACEMENT SHEETS (RULE 26) lipstick, in order to form a pigmented layer adhered to the skin, providing color and comfort to the user. During this application, the volatile solvent of the cosmetic makeup for lip makeup evaporates and it can be considered dry on the surfaces of the lips. Concomitantly with the evaporation of the volatile solvent, the film-forming agents of the cosmetic makeup for lip makeup react with each other in a polymerization process, forming a layer consisting of a resistant film film on the surface of the lips. This formed film makes it difficult to remove the cosmetic makeup for lip makeup from a surface on which it was applied, being sufficient to attribute its complete adherence, without losses, smudges or transfers in situations such as feeding, kissing, tooth brushing, abrasion, among others from day to day. day.

[038] In this sense, the tests described below prove the complete adherence of the cosmetic composition for lip makeup on the lips and the protection provided by the film produced. Although specific concentration ranges for the components of the present cosmetic composition are described below, these values illustrate only one of the numerous ways in which the concentration ranges for these components can vary, not limited to the ranges disclosed below.

Samples analyzed

Cosmetic makeup of lipstick 1

_ Component _%

dimethicone 20.00

binary component based on isodecane and

silicone resin in cross polymer gum 20.00 trimethylsiloxysilicate / dimethicone

copolymer Nylon-61 1 / dimethicone 10.00

isododecane 17,501

C30-C45 alkyldimethylisilyl

8.00

polypropylsesquioxane

trimethylsiloxysilicate 5.00

titanium dioxide 5.00

REPLACEMENT SHEETS (RULE 26) red 7 3,325 silica dimethicone silylate 4.00 cross-polymer dimethicone / vinyl dimethicone 1, 92 iron oxides 1, 60704 fragrance 0.400

0.08 silica

0.105 lauroyl lysine

2,895 mica

aluminum dimiristate 0.100 triethoxycaprilyl silane 0.100 tocopherol acetate 0.100 stearoyl sodium glutamate_ 0.067

Cosmetic makeup of lipstick 4

% Component

Dimethicone (volatile) 14.00

Dimethicone (non-volatile) 5.0 isodecane-based binary component and

silicone resin in gum cross polymer 30.00 of trimethylsiloxysilicate / dimethicone

copolymer Nylon-61 1 / dimethicone 10.00 isododecane 20.401 C30-C45 alkyldimethylisilyl

5.00 polypropylsilsesquioxane titanium dioxide 5.00 red 7 3.325 silica dimethicone silylate 1, 00 cross polymer dimethicone / vinyl dimethicone 2.88 iron oxides 1, 60704 fragrance 0.500

0.12 silica

0.035 lauroyl lysine

0.965 mica

aluminum dimiristate 0.100 triethoxyprilyl silane 0.100 tocopherol acetate 0.100

REPLACEMENT SHEETS (RULE 26) sodium stearoyl glutamate 0.067

Cosmetic makeup of lipstick 5

_ Component _%

Dimethicone (non-volatile) 20.00

Dimethicone (volatile) 22.40 isodecane-based binary component and

copolymer Nylon-61 1 / dimethicone 10.00 isododecane 17.501 C30-C45 alkyldimethylisilyl

5.00 polypropylsilsquioxane

paraffin 1, 00 titanium dioxide 3.00 red 7 3.325 silica dimethicone silylate 1, 00 cross-polymer dimethicone / vinyl dimethicone 3.84 iron oxides 0.9648 fragrance 0.500 silica 0.16 aluminum dimiristate 0.060 triethoxyprilyl silane 0.060 tocopherol acetate 0.100 sodium stearoyl glutamate 0.067

Cosmetic makeup of lipstick 7

_ Component _%

Dimethicone (volatile) 28,501 isodecane-based binary component and

silicone resin in cross polymer gum 20.00 trimethylsiloxysilicate / dimethicone

copolymer Nylon-61 1 / dimethicone 10.00 isododecane 9.50 C30-C45 alkyldimethylisilyl

5.00 polypropylsilsquioxane

3.50 polypropylsilsquioxane

REPLACEMENT SHEETS (RULE 26) paraffin 2.00 titanium dioxide 4.80 red 7 3.325 silica dimethicone silylate 3.00 cross polymer dimethicone / vinyl dimethicone 2.88 trimethylsiloxysilicate 5.00 iron oxides 1, 60704 fragrance 0.400 silica 0.12 aluminum dimiristate 0.100 trietoxicapril silane 0.100 tocopherol acetate 0.100 stearoyl sodium glutamate 0.067

Cosmetic composition of the reference lipstick

Component

dimethicone

trimethylsiloxysilicate

isododecane

copolymer Nylon-61 1 / dimethicone

dimethicone cross polymer

C30-C45 alkyldimethylisilyl polypropylsesquioxane

lauroil lysine

alumina

silica silylate

sodium stearoyl glutamate

phenoxyethanol

caprilyl glycol

L-limonene

aluminum hydroxide

paraffin

benzyl benzoate

benzyl alcohol

citronelol

fragrance

titanium dioxide

iron oxide

REPLACEMENT SHEETS (RULE 26) 1. Abrasion resistance test in the absence and presence of oil

1.1. Materials and methods

[039] The films with 25miti of each of the evaluated lipsticks 1, 4,5,7 and reference were applied to Vitro Skin membranes with overnight drying. The compartment containing the lipstick samples was subjected to 25 abrasion cycles on polyester felts, using an Elcometer Washability equipment (shown in Figure 1). Next, the color variation (DE) measurements were made in a Konica Minolta colorimeter as follows: before (lipstick films sampled before the abrasion was carried out and after 1, 2, 3, 4, 5,10 and 25 cycles of abrasion.

[040] The tests in the presence of olive oil were carried out according to the above procedure and by adding 1 ml of oil on the felt for each measurement cycle.

1.2. Results.

[041] The visual results of the abrasion resistance test in the absence of oil can be seen in Figures 2A and 2B. The measurements of color variation in these same conditions can be seen in the graph in Figure 3. It is possible to see that lipstick 1, 4, 7 and reference showed relatively similar color variation (DE) behavior. The lipstick sample 5 was the one that obtained the greatest color variation in this test.

[042] The visual results of the abrasion resistance test in the presence of olive oil can be seen in Figures 4A and 4B. The measures of color variation in these same conditions can be seen in the graph in Figure 5. It is possible to see that lipstick 1, 4, 7 and benchmark showed relatively similar color variation (DE) behavior. The lipstick sample 5 was the one that obtained the greatest color variation in this test.

2. Flexibility tests

2.1. Materials and methods.

REPLACEMENT SHEETS (RULE 26) [043] The flexibility tests were performed through the standardized application of 50pm films of each lipstick 1, 4, 5, 7 and reference on a latex tape (elastic material). The compositions of these lipsticks were dried overnight. After this stage, each film of these lipsticks was stretched to 200% of the original size. The flexibility of the film was observed, before and after extension and the compilation of visual data can be seen in Figures 6A and 6B.

2.2. Results.

[044] The visual results of the flexibility tests seen in Figures 6A and 6B show that lipsticks 1, 4, 5 and 7 have greater flexibility, resistance to stretching and consequently comfort than the reference lipstick evaluated.

3. Hydrophobicity tests

3.1. Materials and methods.

[045] The 25pm thickness films of each 1, 4, 5, 7 and reference lipstick were applied to Vitro Skin membranes and dried overnight. Then, measurements of contact angle A with a drop of water D were made in quintuplicate to the surface of the film of each lipstick, in Attension equipment - KSV Equipaments. The diagram that clarifies the contact angle A measured in relation to the tangent T of the water drop D present on a surface can be seen in Figure 7. The hydrophobicity tests were carried out before and after the abrasion tests already described.

3.2. Results.

[046] The visual results of the hydrophobicity tests before and after the abrasion tests can be seen, respectively, in Figure 8 and Figure 9. The results show that lipsticks 1, 4, 5 and 7 show greater hydrophobicity than lipstick assessed reference, which is consequently referred to a greater ability to repel and resist water.

4. Stickiness tests

REPLACEMENT SHEETS (RULE 26) 4.1. Materials and methods.

[047] The amount between 0.03 and 0.05 g of each of the samples of lipsticks 1, 4, 5, 7 and benchmark was applied to the bottom plate of the Tackiness Test accessory of the Diastron equipment shown in Figure 10. A then 500 contact cycles were performed at a constant speed of 500mm / min.

4.2. Results.

[048] The results of the stickiness tests can be seen in the graph of Figure 1 1. The results show that lipsticks 1, 4, 5 and 7 have less stickiness than the reference lipstick evaluated.

5. Toothpaste resistance tests

5.1. Materials and methods.

[049] The amount of 0.06 g of each of the lipstick samples 1, 7 and reference was applied to a person's forearm (12.6 cm ² application area), as shown in Figure 12. It was waited for 1 h drying each of the compositions. Then, 2 washing cycles were performed with a solution made with toothpaste for 30s at constant speed. Therefore, the samples were rinsed with running water for 30s at constant flow. Color variations were measured in a Konica Minolta colorimeter, initially and subsequently the two wash cycles. These tests were performed in triplicate.

5.2. Results.

[050] The present invention advantageously includes the film-forming agents with the trimethylsiloxysilicate / dimethicononol cross polymer based gum silicone resin and the C30-C45 alkyldimethylsilyl polypropylsesquioxane. Synergistically with each other and in relation to the other film-forming agents, said resin and said cross-polymer have been shown to confer to the present invention the properties of resistance to saliva, toothpaste and abrasion in the absence and presence of

REPLACEMENT SHEETS (RULE 26) olive oil (mimicking the situations of a meal, a kiss and a tooth brushing), flexibility of the film formed before stretching tests at 200% of normal size, non-stickiness and considerable improvement in drying time. The presence of these components also contributes to the comfort of applying the formulation to the skin. In addition, the ingredient C30-C45 alkyldimethylsilyl polypropylsesquioxane provides improved effect on film formation, as shown in the tests described above.

[051] Having described a preferred embodiment example, it should be understood that the scope of the present invention encompasses other possible variations, being limited only by the content of the appended claims, including possible equivalents therein.

REPLACEMENT SHEETS (RULE 26)

Claims

1. Cosmetic makeup for lip makeup, comprising:

(a) at least one volatile silicone oil;

(b) dimethicone / vinyl dimethicone cross polymer;

(c) Nylon-61 1 / dimethicone copolymer;

(d) at least one pigmenting agent;

(e) at least one trimethylsiloxysilicate resin; the cosmetic composition for lip makeup being characterized by the fact that it still comprises;

at least two silsesquioxane resins of empirical molecular formula [RSiC> 3/2)] n, where:

n is greater than 1;

R independently comprises alkyl groups of 10 to 45 carbon atoms; still in this silsesquioxane resin, the R groups comprise at least 40% (by mol) of propyl groups; and

a volatile solvent-based binary component associated with a cross-linked polymer in the form of gum silicone resin.

2. Composition according to claim 1, characterized by the fact that it comprises from 1 to 35% of the binary component, the volatile solvent being selected from the group of volatile hydrocarbons of 8 to 16 carbon atoms and the crossed polymer in the form of gum silicone resin, preferably trimethylsiloxysilicate / dimethicone.

Composition according to claim 2, characterized in that the volatile hydrocarbons of 8 to 16 carbon atoms are isododecane, isodecane or isohexadecane, preferably isododecane.

4. Composition according to claim 1, characterized by the fact that it comprises from 1 to 35% of the trimethylsiloxysilicate resin, 1 to 15% of the silsesquioxane resin, the silsesquioxane resins being preferably the C30-C45 alkylldimethylsilyl polypropylsesquioxane and / or the polypropylsilsquioxane .

5. Composition according to claim 1, characterized by the fact that it comprises 1 to 50% of the volatile silicone oil, the volatile silicone oil being preferably dimethicone.

6. Composition according to claim 1, characterized by the fact that it comprises 0.5 to 10% cross-polymer dimethicone / vinyl dimethicone, 1 to 15% copolymer Nylon-61 1 / dimethicone, 0.5 to 5% paraffin, 1 to 10% silica dimethicone silylate, 1 to 30% at least one pigment agent, at least one antioxidant and aroma.

7. Composition according to claim 6, characterized in that the pigmenting agent is selected from the group comprising organic and inorganic pigments or dyes.

8. Composition according to claim 6, characterized in that the antioxidant is preferably tocopherol acetate.