WO2009066862A1 - Wet forming compact composition containing volatile silicone oil and silicone resin - Google Patents

Wet forming compact composition containing volatile silicone oil and silicone resin Download PDF

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Publication number
WO2009066862A1
WO2009066862A1 PCT/KR2008/005299 KR2008005299W WO2009066862A1 WO 2009066862 A1 WO2009066862 A1 WO 2009066862A1 KR 2008005299 W KR2008005299 W KR 2008005299W WO 2009066862 A1 WO2009066862 A1 WO 2009066862A1
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Prior art keywords
composition
powder
coated
wet
molding
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PCT/KR2008/005299
Other languages
French (fr)
Inventor
Se Jun Park
Chan Ki Lee
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Amorepacific Corporation
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Priority to CN2008801165466A priority Critical patent/CN101861136B/en
Publication of WO2009066862A1 publication Critical patent/WO2009066862A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/12—Face or body powders for grooming, adorning or absorbing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up

Definitions

  • the present invention relates to a cake-type, wet- molded compact cosmetic composition, and more particularly to a cake-type, wet-molded compact cosmetic composition which is prepared by wet molding using a mixed solvent of volatile silicone oil and silicone resin so as to have excellent durability and a soft touch feel.
  • General cake-type compact cosmetic products are prepared using a conventional method comprising mixing an extender pigment, a pigment and a white pigment in a mixer and spraying a binder onto the mixture.
  • a conventional method comprising mixing an extender pigment, a pigment and a white pigment in a mixer and spraying a binder onto the mixture.
  • the so-called back- injection method which is a wet molding method was developed.
  • cake-type compact cosmetic compositions are prepared by dispersing a compact powder content (before being molded in a plastic dish) in a mixed solvent of isopropyl alcohol (IPA) and water to prepare a slurry-type content, filling the slurry- type content in a plastic dish by the back- injection method, sucking a given amount of the solvent by a sucking machine, and then placing the slurry-type cake in a dryer to remove the remaining solvent.
  • IPA isopropyl alcohol
  • the compact cosmetic products have problems in that the hydrophilicity of the solvents makes it difficult to contain a large amount of powder coated with dimethylpolysiloxane or alkylsilane for uniform dispersion, and thus the durability thereof is low.
  • an emulsifier has been substituted for a mixed solvent of IPA and water in wet molding in order to ensure the uniform dispersion of coated powder and to make it possible to contain a large amount of coated powder, thus improving the durability of compact cosmetic products.
  • the liquid-type foundations have reduced resistance to sebum and sweat when being applied for a long time, and thus show greasiness and darkness.
  • the present invention have conducted repeated studies to develop a wet-molded compact cosmetic composition having a soft touch feel and excellent durability and, as a result, have found that a wet-molded, cake-type compact cosmetic composition can be prepared by uniformly dispersing coated makeup powder into a slurry powder using a mixed solvent of silicone oil and silicon resin without using any emulsifier in order to improve durability, molding the dispersion and drying the molded material to remove the mixed solvent, thereby completing the present invention. Therefore, it is an object of the present invention to provide a wet-molded compact cosmetic composition having excellent durability together with a soft touch feel.
  • the present invention provides a wet-molded compact cosmetic composition which comprises coated makeup powder and is prepared using a mixed solvent of volatile silicone oil and silicone resin.
  • a compact cosmetic composition according to the present invention contains base makeup powder and silicone resin and is prepared by dispersing, based on the total weight of the composition before wet molding, 60-70 wt% of coated makeup powder into a slurry phase using 30-40 wt% of a mixed solvent of volatile silicone oil and silicone resin, molding the slurry and drying the molded material to remove the volatile silicone oil used.
  • the wet-molded compact cosmetic composition according to the present invention is prepared by wet-molding using a mixed solvent of volatile silicone oil and silicone resin without using any emulsifier, and thus has excellent durability while showing a soft touch feel. [Best Mode]
  • dimethylpolysiloxane or alkylsilane having water resistance and oil resistance properties is generally used, but the scope of the present invention is not limited thereto.
  • powder prepared by wet coating is carried out by selecting the contents of powder to be coated and a desired coating substance, mixing the powder and the coating substance in a solvent, washing out or volatilizing the solvent such that only the coating substance remains on the powder, and then heat-treating the powder.
  • the components of the makeup powder may include an extender pigment, a pigment and a white pigment, which are conventionally used in makeup products.
  • an extender pigment e.g., talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate may be used, but the scope of the present invention is not limited thereto.
  • the content of the coated makeup powder is preferably 60-70 wt% based on the total weight of the composition. If the content of the coated makeup powder is less than 60 wt%, the powder flows out during a molding process, thus causing a problem of moldability, and if it exceeds 70 wt%, the uniform dispersion of the coated powder is difficult.
  • the powder component which is a powder content coated with silicone or alkylsilane, refers to a cake-type powder content that is in a step before molding and contains an extender pigment, a pigment, a white pigment and perfume .
  • a solvent obtained by mixing volatile silicone oil and silicone resin at a weight ratio of 97:3 to 99:1 is used.
  • the content of the solvent is preferably 30-40 wt% based on the total weight of the composition. If the content of the solvent is less than 30 wt%, the coated makeup powder content is not uniformly dispersed, and if the content exceeds 40 wt%, a problem of moldability arises, and cracks occur upon the drying of the composition, even though the composition is molded.
  • the volatile silicone oil that is used in the present invention can be easily selected from commercially available products by a person skilled in the art.
  • trimethylsiiloxysilicate is used as the silicone resin.
  • the trimethylsiiloxysilicate can be easily selected from commercially available products by a person skilled in the art.
  • Examples of trimethylsiiloxysilicate which may be used in the present invention include, but are not limited, KF-7312 F, KF-7312 J, KF-7312 K, KF-9001, X-21-5249, KF- 9002, X-21-5250 and KF-9021, which are commercially available from Shinetsu, Japan.
  • a mixed solvent of volatile silicone oil and silicone resin is placed in a universal mixer together with coated makeup powder and sealed.
  • the contents of the mixer are mixed for about 5 minutes, and a given amount of the mixture is filled in a molding dish and molded with molding cloth applied to the molding dish so as to adsorb and remove about 30-60% of the solvent.
  • the molded material is dried in a dryer at about 60-150 ° C for 2-12 hours to completely remove the remaining solvent .
  • the inventive wet-molded compact composition which can have excellent durability and give a sift touch feel may have a conventional formulation.
  • the composition may be formulated in the form of twin cake, compact, powder compact and pressed powder.
  • the composition having each of these formulations may additionally contain a variety of suitable bases and additives required for the formulation of the composition, and the kind and amount of these additional components can be easily selected by a person skilled in the art. [Mode for Invention]
  • Example 1 Wet-molded compact cosmetic composition According to the composition shown in Table 1 below, a wet-molded cosmetic compact composition was prepared. [Table l]
  • the powder mixture of raw material 1 was prepared by- adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which have been coated with dimethylpolysiloxane.
  • Preparation method raw materials 2 and 3 were mixed in a mixer at low speed at low temperature .
  • the mixture of raw materials 2 and 3 was added to the powder of raw material 1, and the powder was dispersed for about 5 minutes to prepare a slurry phase.
  • a given amount of the slurry was filled in a molding dish and molded with molding cloth applied to the molding dish so as to remove about 40- 50% of the solvent.
  • the molded material was dried in a dryer at 60-70 ° C for 6 hours to completely remove the solvent .
  • Example 2 Wet-molded compact cosmetic composition According to the composition shown in Table 2 below, a compact cosmetic composition of Example 2 was prepared in the same manner as in Example 1. [Table 2]
  • the powder mixture of raw material 1 was prepared by adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which have been coated with dimethylpolysiloxane .
  • the powder mixture of raw material 1 was prepared by adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which were uncoated.
  • the powder mixture of raw material 1 was prepared by adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which have been coated with dimethylpolysiloxane .
  • squalene and dimethicone as talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which have been coated with dimethylpolysiloxane .
  • PMMA polymethylmethacrylate
  • boron nitride powder and barium sulfate barium sulfate
  • Test Example 1 Evaluation of durability The water resistance and oil resistance of the compositions prepared in Examples 1 and 1 and Comparative Examples 1 and 2 were comparatively evaluated. Also, the softness
  • Oil resistance immiscibility with sebum-evaluated by measuring contact angle .
  • Softness evaluated through a consumer panel test after each of the compositions was actually applied to the skin of the consumers .
  • compositions of Examples 1 and 2 were particularly superior to the composition of Comparative Example 1 with respect to the water resistance and oil resistance properties determined by the measurement of contact angle. Also, the composition of Comparative Example 2 prepared using the coated powder content was inferior to the compositions of Examples 1 and 2 with respect to water resistance and oil resistance properties due to the use of the emulsifier.

Abstract

Disclosed herein is a cake-type, wet-molded compact cosmetic composition. More specifically, disclosed is a cake- type, wet-molded compact cosmetic composition which is prepared by wet molding using a mixed solvent of volatile silicone oil and silicone resin so as to have excellent durability and a soft touch feel.

Description

[DESCRIPTION]
[invention Title]
WET FORMING COMPACT COMPOSITION CONTAINING VOLATILE SILICONE OIL AND SILICONE RESIN [Technical Field]
The present invention relates to a cake-type, wet- molded compact cosmetic composition, and more particularly to a cake-type, wet-molded compact cosmetic composition which is prepared by wet molding using a mixed solvent of volatile silicone oil and silicone resin so as to have excellent durability and a soft touch feel. [Background Art]
General cake-type compact cosmetic products are prepared using a conventional method comprising mixing an extender pigment, a pigment and a white pigment in a mixer and spraying a binder onto the mixture. However, it is already known that it is difficult to achieve uniform mixing using such a mixing method. To overcome such a shortcoming, the so-called back- injection method which is a wet molding method was developed.
As a wet molding method in the initial stage, the back-injection method was generalized in the 1990s. With respect to the use of the back- injection method, cake-type compact cosmetic compositions are prepared by dispersing a compact powder content (before being molded in a plastic dish) in a mixed solvent of isopropyl alcohol (IPA) and water to prepare a slurry-type content, filling the slurry- type content in a plastic dish by the back- injection method, sucking a given amount of the solvent by a sucking machine, and then placing the slurry-type cake in a dryer to remove the remaining solvent. This technique has also been widely used in the preparation of eye shadows or blushers. Also, because water and IPA are used as solvents, the compact cosmetic products have problems in that the hydrophilicity of the solvents makes it difficult to contain a large amount of powder coated with dimethylpolysiloxane or alkylsilane for uniform dispersion, and thus the durability thereof is low. Recently, an emulsifier has been substituted for a mixed solvent of IPA and water in wet molding in order to ensure the uniform dispersion of coated powder and to make it possible to contain a large amount of coated powder, thus improving the durability of compact cosmetic products. However, due to the use of the emulsifier for containing a large amount of coated powder, the compact cosmetic products have reduced resistance to sebum and sweat when being applied for a long time, and thus show greasiness and darkness . Korean Patent Laid-Open Publication Nos . 1999-40922 and 2003-50531, Japanese Patent Laid-Open Publication No. Hei 3-204806 and US Patent Publication No. 2005-0142089 disclose compositions prepared using silicone oil and silicone resin. The formulations of these compositions are liquid-type foundations or makeup bases, and in the case of the liquid-type foundations, an emulsifier must generally be used to uniformly disperse oil and water. However, as described above, due to the use of the emulsifier, the liquid-type foundations have reduced resistance to sebum and sweat when being applied for a long time, and thus show greasiness and darkness. [Disclosure] [Technical Problem]
Accordingly, the present invention have conducted repeated studies to develop a wet-molded compact cosmetic composition having a soft touch feel and excellent durability and, as a result, have found that a wet-molded, cake-type compact cosmetic composition can be prepared by uniformly dispersing coated makeup powder into a slurry powder using a mixed solvent of silicone oil and silicon resin without using any emulsifier in order to improve durability, molding the dispersion and drying the molded material to remove the mixed solvent, thereby completing the present invention. Therefore, it is an object of the present invention to provide a wet-molded compact cosmetic composition having excellent durability together with a soft touch feel.
To achieve the above object, the present invention provides a wet-molded compact cosmetic composition which comprises coated makeup powder and is prepared using a mixed solvent of volatile silicone oil and silicone resin.
More specifically, a compact cosmetic composition according to the present invention contains base makeup powder and silicone resin and is prepared by dispersing, based on the total weight of the composition before wet molding, 60-70 wt% of coated makeup powder into a slurry phase using 30-40 wt% of a mixed solvent of volatile silicone oil and silicone resin, molding the slurry and drying the molded material to remove the volatile silicone oil used.
The above and other objects, features and advantages of the present invention will be apparent to a person skilled in the art from the following detailed description. [Advantageous Effects]
The wet-molded compact cosmetic composition according to the present invention is prepared by wet-molding using a mixed solvent of volatile silicone oil and silicone resin without using any emulsifier, and thus has excellent durability while showing a soft touch feel. [Best Mode]
Hereinafter, the present invention will be described in further detail.
In order for a wet-molded compact cosmetic composition to have excellent durability and a soft touch feel which are intended in the present invention, the selection of the kind of a powder coating substance and a solvent is very important.
In the present invention, in order to prepare a wet- molded compact cosmetic composition having a soft touch feel and excellent durability, makeup powder coated with a coating substance having excellent water resistance and oil resistance is used.
As the coating substance, dimethylpolysiloxane or alkylsilane having water resistance and oil resistance properties is generally used, but the scope of the present invention is not limited thereto. However, it is preferable to apply powder prepared by wet coating in order to improve durability. Generally, wet coating is carried out by selecting the contents of powder to be coated and a desired coating substance, mixing the powder and the coating substance in a solvent, washing out or volatilizing the solvent such that only the coating substance remains on the powder, and then heat-treating the powder.
Meanwhile, the components of the makeup powder may include an extender pigment, a pigment and a white pigment, which are conventionally used in makeup products. Specifically, talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate may be used, but the scope of the present invention is not limited thereto.
In the compact cosmetic composition according to the present invention, the content of the coated makeup powder is preferably 60-70 wt% based on the total weight of the composition. If the content of the coated makeup powder is less than 60 wt%, the powder flows out during a molding process, thus causing a problem of moldability, and if it exceeds 70 wt%, the uniform dispersion of the coated powder is difficult. Also, the powder component, which is a powder content coated with silicone or alkylsilane, refers to a cake-type powder content that is in a step before molding and contains an extender pigment, a pigment, a white pigment and perfume . In the present invention, in order to uniformly disperse the coated makeup powder into a slurry phase, a solvent obtained by mixing volatile silicone oil and silicone resin at a weight ratio of 97:3 to 99:1 is used.
In the wet-molded compact cosmetic composition according to the present invention, the content of the solvent is preferably 30-40 wt% based on the total weight of the composition. If the content of the solvent is less than 30 wt%, the coated makeup powder content is not uniformly dispersed, and if the content exceeds 40 wt%, a problem of moldability arises, and cracks occur upon the drying of the composition, even though the composition is molded.
The volatile silicone oil that is used in the present invention can be easily selected from commercially available products by a person skilled in the art.
Examples of volatile silicone oil which may be used in the present invention include, but are not limited to, DC 200
(0.65cs) which is dimethicone commercially available from
Dow Corning, and DC 345 which is cyclomethicone commercially available from Dow Corning.
In the present invention, in order to maintain a cake shape while improving durability, trimethylsiiloxysilicate is used as the silicone resin. The trimethylsiiloxysilicate can be easily selected from commercially available products by a person skilled in the art. Examples of trimethylsiiloxysilicate which may be used in the present invention include, but are not limited, KF-7312 F, KF-7312 J, KF-7312 K, KF-9001, X-21-5249, KF- 9002, X-21-5250 and KF-9021, which are commercially available from Shinetsu, Japan.
Hereinafter, a process of wet molding the composition according to the present invention will be described.
First, a mixed solvent of volatile silicone oil and silicone resin is placed in a universal mixer together with coated makeup powder and sealed. The contents of the mixer are mixed for about 5 minutes, and a given amount of the mixture is filled in a molding dish and molded with molding cloth applied to the molding dish so as to adsorb and remove about 30-60% of the solvent. Then, the molded material is dried in a dryer at about 60-150 °C for 2-12 hours to completely remove the remaining solvent .
The inventive wet-molded compact composition which can have excellent durability and give a sift touch feel may have a conventional formulation. For example, the composition may be formulated in the form of twin cake, compact, powder compact and pressed powder. The composition having each of these formulations may additionally contain a variety of suitable bases and additives required for the formulation of the composition, and the kind and amount of these additional components can be easily selected by a person skilled in the art. [Mode for Invention]
Hereinafter, the construction and effect of the present invention will be described in further detail with reference to examples and test examples. These examples are illustrated for a better understanding of the present invention, and the scope of the present invention is not limited to these examples.
Example 1: Wet-molded compact cosmetic composition According to the composition shown in Table 1 below, a wet-molded cosmetic compact composition was prepared. [Table l]
Figure imgf000008_0001
Figure imgf000009_0001
The powder mixture of raw material 1 was prepared by- adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which have been coated with dimethylpolysiloxane.
Preparation method: raw materials 2 and 3 were mixed in a mixer at low speed at low temperature . The mixture of raw materials 2 and 3 was added to the powder of raw material 1, and the powder was dispersed for about 5 minutes to prepare a slurry phase. A given amount of the slurry was filled in a molding dish and molded with molding cloth applied to the molding dish so as to remove about 40- 50% of the solvent. Then, the molded material was dried in a dryer at 60-70 °C for 6 hours to completely remove the solvent .
Example 2: Wet-molded compact cosmetic composition According to the composition shown in Table 2 below, a compact cosmetic composition of Example 2 was prepared in the same manner as in Example 1. [Table 2]
Figure imgf000009_0002
The powder mixture of raw material 1 was prepared by adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which have been coated with dimethylpolysiloxane .
Comparative Example 1: General wet-molded compact cosmetic composition
According to the composition shown in Table 3 below, a compact cosmetic composition of Comparative Example 1 was prepared in the same manner as in Example 1. [Table 3]
Figure imgf000010_0001
The powder mixture of raw material 1 was prepared by adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which were uncoated.
Comparative Example 2: General wet-molded compact cosmetic composition
According to the composition shown in Table 4 below, a compact cosmetic composition of Comparative Example 1 was prepared in the same manner as in Example 1.
[Table 4]
Figure imgf000010_0002
Figure imgf000011_0001
The powder mixture of raw material 1 was prepared by adding squalene and dimethicone as binders to powder consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate, which have been coated with dimethylpolysiloxane . As the emulsifier, cetyl PEG/PPG- 10/1 dimethicone (Abil EM 90) was used. Test Example 1: Evaluation of durability The water resistance and oil resistance of the compositions prepared in Examples 1 and 1 and Comparative Examples 1 and 2 were comparatively evaluated. Also, the softness of the compositions was comparatively evaluated after 10 consumers consisting of 20-30-year-old women were allowed to use the compositions. The evaluation results are shown in Table 5 below. [Table 5]
Figure imgf000011_0002
^K Evaluation criteria ©: very good, o: good, Δ: moderate, x: bad, and xx: very bad. ϊ& Evaluation method
1) Stability: evaluated by storing each of the compact compositions at a constant temperature of 37 °C while observing whether each composition was cracked with the passage of time.
2) Water resistance: immiscibility with water- evaluated by measuring contact angle.
3) Oil resistance: immiscibility with sebum-evaluated by measuring contact angle . 4) Softness: evaluated through a consumer panel test after each of the compositions was actually applied to the skin of the consumers .
As can be seen from the results of FIG. 5, the compositions of Examples 1 and 2 were particularly superior to the composition of Comparative Example 1 with respect to the water resistance and oil resistance properties determined by the measurement of contact angle. Also, the composition of Comparative Example 2 prepared using the coated powder content was inferior to the compositions of Examples 1 and 2 with respect to water resistance and oil resistance properties due to the use of the emulsifier.
In the consumer panel test, it could be seen that, when the compositions were applied directly to the skin of the consumers, the composition of Example 1 according to the present invention showed softness similar to the composition of Comparative Example 1 prepared according to the prior method. Based on the above results, it can be seen that the compact compositions of Examples 1 and 2 according to the present invention have excellent durability.

Claims

[CLAIMS]
[Claim l]
A wet-molded compact cosmetic composition which contains coated makeup powder and is prepared using a mixed solvent of volatile silicone oil and silicone resin.
[Claim 2]
The composition of Claim 1, wherein the volatile silicone oil and the silicone resin are mixed at a weight ratio of 97:3 to 99:1.
[Claim 3]
The composition of Claim 1, wherein the coated makeup powder is coated with dimethylpolysiloxane or alkylsilane .
[Claim 4]
The composition of Claim 1, wherein the coated makeup powder is at least one selected from the group consisting of talc, mica, sericite, silica, nylon powder, silicon powder, polymethylmethacrylate (PMMA) , boron nitride powder and barium sulfate.
[Claim 5] The composition of Claim 1, wherein the content of the coated makeup powder is 60-70 wt% based on the total weight of the composition including the mixed solvent before wet molding.
[Claim 6] The composition of Claim 1, wherein the silicone oil is dimethicone or cyclomethicone . [Claim 7]
The composition of Claim 1, wherein the silicone resin is trimethylsiloxysilicate . [Claim 8]
The composition of any one of Claims 1 to 7 , wherein the composition contains no emulsifier. [Claim 9]
The composition of any one of Claims 1 to 7, wherein the composition has improved water resistance and oil resistance and gives a soft touch.
[Claim lθ] A method for preparing a wet-molded compact cosmetic composition, the method comprising the steps of:
1) mixing makeup powder coated with dimethylpolysiloxane or alkylsilane and a mixed solvent of volatile silicone oil and silicone resin in a universal mixer; and
2) filling the mixture in a compact molding dish, molding the filled mixture with molding cloth applied to the molding dish so as to partially remove the solvent, and drying the molded material in a dryer at 60-150 °C to remove the remaining solvent .
PCT/KR2008/005299 2007-11-21 2008-09-08 Wet forming compact composition containing volatile silicone oil and silicone resin WO2009066862A1 (en)

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KR101135252B1 (en) 2012-04-12
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CN101861136A (en) 2010-10-13

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