GB2401316A

GB2401316A - Cosmetic composition for the skin or lips comprising a silicone pressure sensitive adhesive elastomer

Info

Publication number: GB2401316A
Application number: GB0310259A
Authority: GB
Inventors: Kristin Elizabeth Good; Bartley Maxon
Original assignee: Dow Corning Corp
Current assignee: Dow Silicones Corp
Priority date: 2003-05-03
Filing date: 2003-05-03
Publication date: 2004-11-10
Also published as: GB0310259D0

Abstract

A cosmetic composition providing a substantive, durable film upon application to the skin or lips, comprising a silicone pressure sensitive adhesive elastomer and a volatile carrier. The pressure sensitive adhesive elastomer is the reaction product of a condensation reaction of a silanol-functional polydiorganosiloxane and a branched silicone resin having trimethylsiloxy groups and Si-OH groups. Preferably, the silanol-functional polydiorganosiloxane is a hydroxyl end-blocked polydimethylsiloxane. More preferably, the branched silicone resin consists of monovalent and tetrafunctional trimethylsiloxy groups. The volatile carrier is preferably a mixture of volatile silicones and isoparaffins having 8-20 carbon atoms.

Description

COSMETIC COMPOSITIONS

FIELD OF THE INVENTION

10001] This invention relates to skincare and cosmetic compositions such as sunscreens, foundations, concealers, mascaras, lip products, nail coatings, eyebrow products and pressed powder products such as blushes, eye shadows or face powder.

BACKGROUND TO THE INVENTION

100021 US-A-5330747 and US-A-5451610 describe personal care preparations, particularly eye cosmetics such as mascara, comprising a trimethylsilylendblocked benzene soluble resinous copolymer containing silicon-bonded hydroxyl radicals, a silanol-endblocked polydiorganosiloxane fluid and a phenyl-containing polysiloxane fluid of viscosity 5-60,000 centiStokes at 25 C.

100031 US-A-5911974 and US-A-6340466 describe the use of trimethylsiloxysilicate resins for cosmetic compositions with extended wear, waterproofing, and transfer resistance.

Skincare and colour cosmetics compositions containing trimethylsiloxysilicate resins have also been described in WO-A-00/47169, WO-A-00/47182, WO-A-00/47171 and WO-A 00/47170.

[00041 There is a need for skincare and cosmetic compositions which provide extended wear, waterproofing, and transfer resistance, without the negative attributes of dry feel and formation of a brittle film currently observed with existing resins and polymers used by the cosmetic industry such as those described in US-A-5911974 and US-A-6340466.

SUMMARY OF THE INVENTION

100051 The invention comprises the use in a cosmetic composition for application to the skin or the lips of a silicone pressure sensitive adhesive elastomer which is the reaction product of a condensation reaction of a hydroxy-functional polydiorganosiloxane and a branched silicone resin having trimethylsiloxy groups and Si-OH groups.

[00061 A cosmetic composition according to the invention providing a substantive, durable film upon application to the skin or the lips, comprising (1) a silicone pressure sensitive adhesive elastomer which is the reaction product of a condensation reaction of a hydroxy-functional polydiorganosiloxane and a branched silicone resin having trihydrocarbonsiloxy groups and Si-OH groups and (2) a volatile carrier, wherein the ratio of (1) to (2) is from about 1:9 to about 20:1.

DETAILED DESCRIPTION OF THE INVENTION

100071 The branched silicone resin preferably consists of siloxane units of the formula R'aSiO4 a/2 wherein R' denotes a hydroxyl, hydrocarbon or hydrocarbonoxy group and wherein a has an average value of from 1 to 1.8. The resin preferably consists of monovalent trihydrocarbonsiloxy (M) groups ofthe formula R''3SiOI/2 and tetrafunctional (Q) groups SiO4/2 wherein each R" denotes a monovalent hydrocarbon group having I to 6 carbon atoms, preferably a methyl group. The number ratio of M groups to Q groups is preferably in therange0.5:1 to 1.2:1 (equivalent to a value ofain the formula R'aSiO4 a/2 of1.0to 1.63), and is more preferably 0.6:1 to 0.9:1. The silicone resin preferably contains at least 0.2 percent by weight up to about 3 or 5 percent silicon-bonded hydroxy radicals. These are preferably present as dimethylhydroxysiloxy (HO)(CH3)2SiO1/2 units. The silanol containing silicone resin preferably has a Tg above 0 C.

10008] The silanol-functional polydiorganosiloxane is preferably a hydroxy tenminated polydiorganosiloxane of Tg below -20 C. The organic substituents of the silanol tenminated polydiorganosiloxane are generally alkyl groups having 1 to 6 carbon atoms or phenyl groups. Preferably at least 80 percent of the organic substituents are methyl groups.

Most preferably the silanol-functional polydiorganosiloxane is a dimethylhydroxy-tenninated polydimethylsiloxane. The silanol-tenninated polydiorganosiloxane preferably has a viscosity of at least 0.1 Pals and can have viscosity up to 30000 Pals or higher. It can for examp]c be prepared by the method of US-A-5319120.

[00091 The silicone pressure sensitive adhesive preferably comprises 20 to 80 parts by weight, preferably 30 to 60 parts, of the silanol- terminated polydiorganosiloxane reacted with to 20 parts by weight, preferably 70 to 40 parts, of the branched silicone resin. Most preferably the silicone pressure sensitive adhesive is the product of mixing 30 to 60 parts by weight of a silanol-terminated polydimethylsiloxane of Tg below -20 C and viscosity 0.1 30000 Pals at 25 C with 40 to 70 parts by weight of a silanol-containing silicone resin of Tg above 0 C comprising (M) groups ofthe formula R''3SiO1l2 as defined above and (Q) groups SiO4/2 having a ratio of M groups to Q groups in the range 0.5: 1 to 1.2:1. One example of a medical grade of silicone pressure-sensitive is sold under the Trade Mark DOW CORNING MD7-4502 Silicone Pressure Sensitive Adhesive and is commercially available from Dow Corning Corporation, Midland, Michigan.

1001 al The silanol groups of the polydiorganosiloxane undergo condensation reaction with the silanol groups of the silicone resin so that the polydiorganosiloxane is lightly crosslinked by the silicone resin (that is, polydiorganosiloxane chains are bonded together through resin molecules to give chain branching and entanglement and/or a small amount of network character) to form the silicone pressure sensitive adhesive. A catalyst, for example an alkaline material such as ammonia, ammonium hydroxide or ammonium carbonate can be mixed with the silanol- terminated polydiorganosiloxane and the silicone resin to promote this crosslinking reaction. The amounts of silanol-terminated polydiorganosiloxane and silanol containing silicone resin are preferably such that the Tg of the pressure sensitive adhesive reaction product is between 15 and 15 C (T at tan delta maximum).

10011 l The silicone pressure sensitive adhesive is generally dissolved in the volatile carrier, which can be a silicone or an organic-based solvent suitable for use in personal care.

Examples of silicone solvents are the Dow Corning cyclic silicone fluids sold under the Trade Marks Dow Corning 244, 245, 344, 345, and volatile linear silicone fluids sold under the Trade Mark Dow Corning 200. These fluids comprise octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, hexamethyldisiloxane, or mixtures thereof. Also suitable as the volatile solvent component are various C8 -C2() isoparaffins such as C12 isoparaffin made by The Permethyl Corporation and distributed by Presperse having the trade mark Pcrrnethyl 99A. Various C 16 isoparaffins commercially available, such as isohexadecane, are also suitable. It is preferred that the volatile solvent component be a mixture of volatile silicones and C8-20 isoparaffins, for example at a ratio of 1:1 to 4:1 by volume. The ratio of silicone pressure adhesive to volatile carrier in the compositions of this invention is preferablyfrom 1:3 to 3:1, with a particularly preferred range between 1:1 and2:1.

[00121 The cosmetic composition can for example be a skincare product such as a sunscreen composition; a foundation, which can be in the fomm of an emulsion, an anhydrous liquid, a hot pour composition or a pressed cake; a concealer, which can be in emulsion or anhydrous form: mascara, which can be in emulsion or anhydrous fomm; a lip product which can be a lipstick or a liquid fomm; a nail coating; an eyebrow product; or a pressed powder product such as a blush, an eye shadow or a face powder. The cosmetic compositions of the invention have improved extended wear, waterproofing, and transfer resistant characteristics.

100131 The concentration of the silicone pressure sensitive adhesive (PSA) in the cosmetic composition can in general vary from 0. 1% to 30% by weight. Levels are dependent on type of product (lipstick, liquid lip colour, mascara or foundation) and characteristics desired. Typical levels are 0.1 to 1% of the silicone PSA in foundations or sunscreen compositions, 0.5 to 30% in lip products and 0.3 to 5% in mascara.

[00141 Lipsticks are a moulded solid base containing dissolved and/or suspended colorants and generally comprise mineral pigments or organic colorants such as bromoacid pigments, organic waxes, and oily ingredients to achieve acceptable spreadability.

Ingredients such as Candellila wax, Camuba wax, Castor Oil, Ozokerite, and siloxanes are key raw materials used for lipsticks applications as described in the Chemistrv and Manufacture of Cosmetics: Volume 2 Formulating edited by Mitchell Schlossman (Allured Publishing Corporation, 2002) 100151 Foundations maybe prepared in various forms ranging from liquid, cream, to gel form. These forms vary in consistency, texture composition, and pigment level, and differ in the appearance (opaque to transparent), and targeted site of application. Foundations using the aforementioned products may be classified into the following categories: anhydrous, emulsion, and aqueous dispersion. Water-in-silicone emulsions are very popular and typically include an emulsifier such as a dimethiconc copolyol, with cyclomethicone, surface treated fillers and pigments, in combination with organic esters or waxes, and water. Further information on the components of foundations maybe found in Chapter 24 of Chemistry and Manufacture of Cosmetics: Volume 2 Formulating edited by Mitchell Schlossman (Allured Publishing Corporation, 2002) [00161 Liquid Mascara and eyeliners generally comprise a combination of organic vegetable oils or waxes, along with dissolved and/or suspended colorants such as mineral pigments or organic colorants...................

........DTD: 10017] The term "oil" as used herein refers to any material which is substantially insoluble in water. Suitable oil components include, but are not limited to, natural oils such as coconut oil; hydrocarbons such as mineral oil and hydrogenated polyisobutene; fatty alcohols such as octyldodecanol; esters such as C12 -C15 alkyl benzoate; diesters such as propylene dipelarganate; and triesters, such as glyceryl trioctanoate and silicones especially cyclomethicone and dimethicone and mixtures thereof. The composition of the invention also contains oils, preferably a mixture of low viscosity and high viscosity oils. Suitable low viscosity oils have a viscosity of 5 to 100 centipoise at 25 C., and are generally esters having the structure RCO-OR' wherein RCO represents the carboxylic acid radical and wherein OR' is an alcohol residue. Examples of these low viscosity oils include isotridecyl isononanoate, PEG-4 diheptanoate, isostearyl neopentanoate, tridecyl neopentanoate, cetyl octanoate, cetyl palmitate, cetyl ricinoleate, cetyl stearate, cetyl myristate, coco- dicaprylate/caprate, decyl isostearate, isodecyl oleate, isodecyl neopentanoate, isohexyl neopentanoate, octyl palmitate, dioctyl malate, tridecyl octanoate, myristyl myristate, octododecanol, or mixtures of octyldodecanol, acetylated lanolin alcohol, cetyl acetate, isododecanol, polyglyceryl-3- diisostearate, or nixtures thereof. The high viscosity surface oils generally have a viscosity of 200-1,000,000 centipoise at 25 C., preferably a viscosity of 100,000-250, 000 centipoise.

Surface oils include castor oil, lanolin and lanolin derivatives, triisocctyl citrate, sorbitan sesquioleate, C10-18 triglycerides, caprylic/capric/triglyceridcs, coconut oil, corn oil, cottonseed oil, glyceryl triacetyl hydroxystearate, glyceryl triacetyl ricinoleate, glyceryl trioctanoate, hydrogenated castor oil, linseed oil, mink oil, olive oil, palm oil, illipe butter, rapeseed oil, soybean oil, sunflower seed oil, tallow, tricaprin, trihydroxystcarin, triisostearin, trilaurin, trilinolein, trimyristin, triolein, tripalmitin, tristearin, walnut oil, wheat germ oil, cholesterol, or mixtures thereof. Mention may be made, among the optional other non- silicone fatty substances, of mineral oils, such as liquid paraffin or liquid petroleum, of animal oils, such as perhydrosqualene or arara oil, or alternatively of vegetable oils, such as sweet almond, calophyllum, palm, castor, avocado, jojoba, olive or cereal genm oil. It is also possible to use esters of lanolic acid, of oleic acid, of lauric acid, of stearic acid or of mynstic acid, for example; alcohols, such as oleyl alcohol, linoleyl or linolenyl alcohol, isostearyl alcohol or octyldodecanol; or acetylglycerides, octanoates, decanoates or ricinoleates of alcohols or of polyalcohols. It is alternatively possible to use hydrogenated oils which are solid at 25 C, such as hydrogenated castor, palm or coconut oils, or hydrogenated tallow; mono-, di-, tri- or sucroglycerides; lanolins; or fatty esters which are solid at 25 C.

100181 Waxes or wax-like materials used in the cosmetic compositions of the invention generally have a melting point range of 35 C -120 C. Waxes in this category include synthetic wax, ceresin, paraffin, ozokerite, illipe butter, beeswax, carnauba, microcrystalline, lanolin, lanolin derivatives, candelilla, cocoa butter, shellac wax, spennaceti, bran wax, capok wax, sugar cane wax, montan wax, whale wax, baybeny wax, ouricury or japan wax or cork fibre or sugarcane waxes or mixtures thereof. Mineral waxes, for example paraffin or lignite wax or microcrystalline waxes or ozokerites; synthetic waxes, including polyethylene waxes, and waxes obtained by the Fischer-Tropsch synthesis can also be used. Silicone waxes, such as polymethylsiloxane alkyl, alkoxy and/or ester waxes, can additionally or alten1atively be used.

10019] The compositions described herein generally also comprise an aqueous component. For purposes of this invention the term "aqueous component" refers to any material consisting essentially of, or predominantly of, water. The aqueous component of thc compositions of the invention serves to increase the water content of the skin and to retard moisture loss from the skin over time.

[00201 Stabilizing agents are preferably used in the water phase. Suitable water phase stabilizing agents can include alone or in combination one or more electrolytes, polyols, alcohols such as ethyl alcohol, or hydrocolloids. Preferred electrolytes are alkali metal salts and alkaline earth salts, especially the chloride, borate, citrate, and sulphate salts of sodium, potassium, calcium and magnesium, as well as aluminium chlorohydrate, and polyelectrolytes, especially hyaluronic acid and sodium hyaluronate. Examples of polyols which can be used are glycerine, glycols, and sorbitols. The hydrocolloids include gums, such as Xanthan gum or Veegum and thickening agents, such as carboxymethyl cellulose.

Other stabilizing materials can be included such as a high melting point oil material compatible with the oil phase. Suitable materials are fatty esters such as glyceryl tribehenate.

Various combinations of the esters and salts can be used. Other stabilizers which can be present include organo-modified clays such as quaternium-18-hectorite.

100211 One or more surfactants are preferably included in the cosmetic composition, for example to emulsify oil components in the aqueous component or vice versa. The surfactants are preferably included as part of the oil phase but may be added as a separate phase. Preferred surfactants useful in the invention include those derived from silicone, sorbitan derivatives, and fatty alcohol derivatives. More specifically, suitable surfactants include, but are not limited to, sorbitan sesquioleate, sorbitan oleate, sorbitan isostearate; alkoxylated alcohols such as ethoxylated fatty alcohols including those sold under the trade names Laureth-4, Laureth-7, Deceth-12 and Steareth-10; hydroxylated derivatives of polymeric silicones, such as dimethicone copolyol; alkylated derivatives of hydroxylated polymeric silicones such as cetyl dimethicone copolyol; glyceryl esters such as polyglyceryl- 4-isostearate; and mixtures thereof, especially mixtures of hydroxylated derivatives of polymeric silicones, alkylated derivatives of hydroxylated polymeric silicones and glyceryl esters, most especially mixtures of dimethicone copolyol, cetyl dimethicone copolyol and polyglyceryl-4- isostearate.

10022] The aqueous component optionally contains one or more watersoluble emollients including, but not limited to, lower molecular weight aliphatic dials such as propylene glycol and butylene glycol; polyols such as glycerine and sorbitol; and polyoxyethylene polymers such as polyethylene glycol 200. T he amount of water soluble emollient(s) employed can for example be 1 to 20% by weight of the cosmetic composition and will vary depending on the desired aesthetic characteristics of the composition.

100231 The cosmetic composition of the invention may contain a powder component, that is particulate matter having a particle size when dry of 0.02-50 microns. The particulate matter may be coloured or non-coloured (for example white). Suitable powders include bismuth oxychloride, titanated mica, fumed silica, spherical silica beads, polymethylmethacrylate beads, micronized teflon, boron nitride, acrylate polymers, aluminium silicate, aluminium starch octenylsuccinate, bentonite, calcium silicate, cellulose, chalk, corn starch, distomaceous earth, fuller's earth, glyceryl starch, hectorite, hydrated silica, kaolin, magnesium aluminium silicate, magnesium carbonate, magnesium hydroxide, magnesium oxide, magnesium silicate, magnesium trisilicate, maltodextrin, montmorillonite, microcrystalline cellulose, rice starch, silica, talc, mica, titanium dioxide, zinc laurate, zinc myristate, zinc neodecanoate, zinc oxide,zinc resinate, zinc stearate, polyethylene, alumina, attapulgite, calcium carbonate, calcium silicate, dextran, kaolin, nylon, silica silylate, silk powder, serecite, soy flour, tin oxide, titanium hydroxide, trimagnesium phosphate, walnut shell powder, glass or ceramic beads, metal soaps derived from carboxylic acids having 8-22 carbon atoms, non-expanded synthetic polymer powders, expanded powders and powders from natural organic compounds, such as cereal starches, which may or may not be crosslinked,or mixtures thereof. The above mentioned powders may be surface treated with lecithin, amino acids, mineral oil, silicone oil, or various other agents either alone or in combination, which coat the powder surface and render the particles hydrophobic in nature.

Particularly preferred powder components include talc, mica, silica, kaolin, nylon powders (in particular ORGASOL), polyethylene powders, polytetrafluoroethylene powder such as Teflon (trade mark), starch, boron nitride, copolymer microspheres such as EXPANCEL (Nobel Industrie) or polytrap, silicone resin microbeads (TOSPEARL from Toshiba, for example), silicone elastomeric powders (DC 9506 from Dow Corning and silicone elastomeric powder treated with mica and silica (Trefil (Trade Mark) from Dow Corning Toray Silicone).

100241 Examples of sunscreen agents which can be used in the cosmetic compositions of the invention include (by INCI denomination) PABA, Butyl methoxydibenzoyl methane, Cinoxate, Benzophenone-1,2,3,4,5,6,8,9 Homosalate, Menthyl anthranilate, Octocrylene, Ethylhexyl methoxycinnamate, Ethylhexyl salicylate, Ethylhexyl dimethyl PABA, Phenylbenzimidazole sulfonic acid, Titanium dioxide (and its micronised forms optionally coated by coating agents such as alumina, aluminium stearate, and/or silicones), TEA-salicylate, Zinc Oxide (and its micronised forms), Dipropylene Glycol salicylate, Glyceryl Ethylhexanoate dimethoxycinnamate, Glyceryl 0 PABA, Isopropyl Methoxycinnamate, diisopropyl Methyl Cinnamate, Ethyl PABA, Ethylhexyl Triazone, PEG-25 PABA, Isoamyl p-methoxycinnamate and Camphor benzalkonium methosulfate. The composition can additionally or alternatively contain an Agents for artificially tanning and/or browning the skin (self tanning agent) such as for example dibydroxyacetone.

100251 The cosmetic composition of the invention can optionally additionally contain vitamins such as Vitamins A, E, C and/or B in their various forms. Another type of optional ingredient is amorphous polypropylene such as that described in U.S-A- 5392380.

10026] The cosmetic composition of the invention may contain a preservative, for example those sold under the Trade Marks Parabens, Germaben or Kathon, or phenoxyethanol and/or may contain an antioxidant, e.g. BHA or BHT.

[00271 The cosmetic composition of the invention can be in the form of a water-in-oil emulsion, which is preferably stabilised. ln producing the stabilized emulsion of the invention, the oil and water phases are formed separately. In a first vessel, the organopolysiloxane elastomer in vehicle dispersion is combined with other components, such as the one or more surfactants which are dispersible in the oil, and subjected to low shear mixing. If the elastomer is not already dispersed in the vehicle, for example volatile and/or non-volatile silicone oils, the elastomer can be dispersed in the vehicle by high speed or homogenous mixing. Preferably, the mixing breaks up the organopolysiloxane until no discrete particles of the elastomer remain. If necessary, the elastomer can be roller milled or, if mixed with other materials, roller milled in a blended forth mixed with the volatile oil. If a fatty ester which is a solid at room temperature is employed to stabilize the oil phase, heat may be required sufficient to reach the melting point of the fatty ester so that satisfactory dispersion of the ester in the oil phase can be achieved. The water and water compatible stabilizing agents are mixed together under low shear conditions at room temperature. The water mix is then charged, preferably slowly, into the oil phase. Preferably, the two phases are at about the same temperature prior to their inter-mixture under high shear mixing conditions. The phases can also be mixed to form the emulsion at an elevated temperature consistent with that necessary to disperse the fatty ester. The emulsion of the water and oil 0 phases is preferably subjected to high speed homogenization for about l 5 to 30 minutes.

Other additives may be dispersible in the oil or water phase. Preferably, the additives are incorporated in the appropriate phase before the water mix is charged into the oil phase. In such instances, the oil or water phase is separately mixed or blended with the additives to produce a unifonn phase prior to the mixing of the oil and water phase.

10028] If the cosmetic composition is in the fonm of an oil-in-water emulsion, the emulsion can be prepared in the following way: phases A and B are prepared by simple mixing of constituents separately to fonm an aqueous phase and an oil phase under wand conditions. The aqueous phase and oil phase are homogenized separately with stirring, preferably at elevated temperature such as 70-75 C. The oil phase is then dispersed with stining in the aqueous phase. An emulsion is obtained with a smooth and creamy texture.

Using some emulsifiers, oil-in-water emulsions can alternatively be obtained using the phase inversion technique where the water phase is added to the oil phase initially making a water in oil emulsion which then inverts when a sufficient quantity of water phase has been added.

The pre-mix is then further diluted with the remainder of the water phase.

100291 A stick formulation such as a lipstick can be made by mixing dry ingredients with the volatiles and a silicone ester wax. Further waxes and oils can be added with heating.

The powder component is then added and the mixture is stirred before pouring into moulds and allowing to cool.

EXAMPLES

100301 The invention is illustrated by the following Examples, in which parts and percentages are by weight

Example l

100311 The following pigments listed in Table I were ground together as a dry pigment grind

Table 1

Ingredient Wt. % INCI Name Kaolin USP 50 Kaolin Titanium Dioxide 39.3 Micronized Titanium Dioxide (and) Triethoxy Caprylylsilane Silchroma Yellow 8.93 Yellow Iron Oxide (and) Dimethiconol (and) Isocetyl Behenate Silchroma Red 1.78 Red Iron Oxide (and) Dimethiconol (and) Isocetyl Behanate 100321 A pigment blend for use in the liquid makeup formulations was prepared by blending 40% of the above dry pigment grind with 60% decamethylcyclopentasiloxane (D5).

10033] A liquid makeup formulation according to the invention was prepared by mixing the following ingredients shown in Table 2. All ingredients in Phase A were combined in a main vessel (covered) and mixed until uniform. The silicone pressure sensitive adhesive elastomer used is the reaction product of a condensation reaction of a silanol-functional polydiorganosiloxane and a branched silicone resin having trimethylsiloxy groups and Si-OH groups and is sold by Dow Corning as a solution in D5 under the Trade Mark Dow Corning 4400. This was diluted with D5 to an adhesive concentration of 33% before addition to the vessel. In a separate vessel, all ingredients of Phase B were mixed until uniform. Phase B was added to Phase A slowly with high shear (1376 RPM) over 15 minutes. Mixing was continued for 20 minutes after addition was complete.

Table 2

Ingredient Weight % Phase A Dimethicone Cross Polymer elastomer blend sold under Trade Mark Dow Corning 3 Silicate Resin 2 Silicone adhesive pressure sensitive elastomer solution (33 /O solids 1 Pigment Blend 27 Diluents (Cyclomethicone and Dimethicone Copolyol) 10 Phase B Deionized water 55.5 Polysorbate 20 0.5 Sodium Chloride 1

Example 2

4] Another liquid makeup formulation was prepared using the procedure of Example I and the formulation shown in Table 3 below

Table 3

ngredicat Weight % Phase A Dimethiconol gum in cyclomethicone 1 ilicate Resin 2

_

Silicone adhesive pressure sensitive elastomer solution (33% solids)

_

Pigment Blend of Example I 25 Diluents (Cyclomethicone and Dimethicone Copolyol) 13.8

_

Phase B

_

Deionized water 55.5 Polysorbate 20 0.5

_

Sodium Chloride I Glydant 0.2

Examples 3 to 5

100351 Further liquid makeup formulations were produced using the formulations shown in Table 4. The ingredients of Phase A and Phase B were combined separately. Phase B was slowly added to Phase A with turbulent mixing, which was continued after addition 0 was complete. ]4

Table 4

Example 3 Example 4 Example 5 Ingredient Parts Parts Parts Phase A Cyclomethicone (and) Dimethicone Copolyol 8.5 8.5 8.5 Cyclomethicone 10. 0 10.0 8.5 Dimethicone 10.0 10.0 5.5 Dimethiconol gum in Cyclomethicone 2. 0 2.0 Dow Corning 9040 dimethicone Cross Polymer 3.0

_

Trimethylsiloxysilicate/ Dimethiconol Crosspolymer 5.0 10.0 10.0 pressure sensitive adhesive (50% in D5) Phase B

_

Deionised water 63.0 58.0 63.0 Polysorbate 20 0.5 0.5 0.5 Sodium chloride 1.0 1.0 1.0

Claims

1. A cosmetic composition providing a substantive, durable film upon application to the skin or the lips, comprising (1) a silicone pressure sensitive adhesive elastomer which is the reaction product of a condensation reaction of a silanol-functional polydiorganosiloxane and a branched silicone resin having trimethylsiloxy groups and Si-OH groups and (2) a volatile carrier, wherein the ratio of (1) to (2) is from about 1:9 to about 20:1.

2. A cosmetic composition according to Claim I wherein the silanolfunctional polydiorganosiloxane is a hydroxy end-blocked polydimethylsiloxane.

3. A cosmetic composition according to Claim I or Claim 2 wherein the branched silicone resin consists of monovalent trimethylsiloxy groups of the formula (CH3)3SiO1l2 and tetrafunctional groups ofthe formula SiO4/2

4. A cosmetic composition according to any of Claims I to 3 wherein the volatile carrier is a mixture of volatile silicones and isoparaffins having 8 to 20 carbon atoms.

5. Use in a cosmetic composition for application to the skin or the lips of a silicone pressure sensitive adhesive which is the reaction product of a condensation reaction of a hydroxy-functional polydiorganosiloxane and a branched silicone resin having trimethylsiloxy groups and Si-OH groups.