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Film forming agent, and cosmetic composition and cosmetic using same

A technology of cosmetics and compositions, applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., which can solve the problems of water resistance, insufficient persistence, greasy and sticky, and the inability to mix a large amount of film-forming agents, etc., to achieve excellent hair adhesion, Easy design and high stability effect

Inactive Publication Date: 2018-06-08
DOW TORAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, for water-in-oil type skin cosmetics, there is a problem that a large amount of oil-soluble film-forming agent cannot be added due to compatibility problems with other cosmetic ingredients, and there is also the problem of greasy and sticky texture characteristic of water-in-oil type emulsions. usability issues
On the other hand, oil-in-water emulsions give a moist feel, but cannot sufficiently use a film-forming agent, resulting in insufficient water resistance and durability.

Method used

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  • Film forming agent, and cosmetic composition and cosmetic using same
  • Film forming agent, and cosmetic composition and cosmetic using same
  • Film forming agent, and cosmetic composition and cosmetic using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0151] (monomer emulsification)

[0152] 0.53 parts by weight of sodium lauryl sulfate was measured in the beaker 1, and 51.72 parts by weight of ion-exchanged water was added and stirred to obtain an aqueous solution. 10.09 parts by weight of methyl methacrylate, 3.18 parts by weight of butyl acrylate, and 13.23 parts by weight of carbosiloxane dendrimer represented by the general formula (1) were added to the beaker 2 to make them uniform. Add the mixture in beaker 2 to beaker 1, stir for a few minutes, use a homogenizer at a pressure of 400-500Kg / cm 2 The mixture was passed through several times to obtain a milky white monomer emulsion with an average particle diameter of 153 nm.

[0153] (Radical Polymerization)

[0154] Into a separable flask, 8.00 parts by weight of ion-exchanged water and a part of the obtained monomer emulsion were charged, and the temperature was raised to 70° C. while stirring. After reaching 70° C., the obtained remaining monomer emulsion and a 1...

Embodiment 2

[0156] Use the following formula, change the polymerization temperature to 80°C, change the emulsifier from sodium lauryl sulfate to laureth-1 phosphate, neutralize the emulsifier with 50% sodium hydroxide before use, in addition, It carried out similarly to Example 1.

[0157] (monomer emulsification)

[0158] Beaker 1:

[0159] Laureth-1 phosphate (90%): 0.67 parts by weight

[0160] 50% sodium hydroxide: 0.17 parts by weight

[0161] Ion-exchanged water: 46.87 parts by weight

[0162] Beaker 2:

[0163] Methyl methacrylate: 11.49 parts by weight

[0164] Butyl acrylate: 3.61 parts by weight

[0165] Carbosiloxane dendrimers represented by general formula (1): 15.06 parts by weight

[0166] 2-phenoxyethanol: 0.30 parts by weight

[0167] Average particle size of monomer emulsion:

[0168] Milky white with an average particle size of 117nm.

[0169] (Radical Polymerization)

[0170] Separable flasks:

[0171] Ion-exchanged water: 6.75 parts by weight

[0172] mon...

Embodiment 3

[0178] Use the following formula, change the polymerization temperature to 80°C, change the emulsifier from sodium lauryl sulfate to laureth-1 phosphate, neutralize the emulsifier with 50% sodium hydroxide before use, in addition, It carried out similarly to Example 1.

[0179] (monomer emulsification)

[0180] Beaker 1:

[0181] Sodium lauryl phosphate: 0.60 parts by weight

[0182] Ion-exchanged water: 49.72 parts by weight

[0183] Beaker 2:

[0184] Methyl methacrylate: 11.45 parts by weight

[0185] Butyl acrylate: 3.62 parts by weight

[0186] Carbosiloxane dendrimers represented by general formula (1): 15.07 parts by weight

[0187] 2-phenoxyethanol: 0.30 parts by weight

[0188] Average particle size of monomer emulsion:

[0189] Milky white with an average particle size of 125nm.

[0190] (Radical Polymerization)

[0191] Separable flasks:

[0192] Ion-exchanged water: 4.17 parts by weight

[0193] monomer emulsion

[0194] 1% potassium persulfate aqueous...

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Abstract

Provided is a cosmetic composition that is formed of at least the following components: (A) 100 parts by weight of at least one vinyl polymer that has, in a side chain thereof, at least one carbosiloxane dendrimer group; (B) 0.1-30 parts by weight of a surfactant; and (X) water, wherein emulsified particles each formed of at least a component (A) and a component (B) are included in a water phase,and the weight-average molecular weight of the component (A) is at least 80,000. By mixing a vinyl-based polymer emulsion having a carbosiloxane dendrimer structure into a water phase according to thepresent invention, a cosmetic can be provided that is excellent in softness, smoothness of a finish or texture during usage, waterproofness, and makeup retaining properties.

Description

technical field [0001] The present invention relates to a film-forming agent, a cosmetic composition using the film-forming agent, and a cosmetic having the cosmetic composition. Background technique [0002] In cosmetics, in general, water-in-oil emulsions can impart physical properties that enhance water resistance and durability, so they have been used in a wide range of skin care products from sunscreen products. Developed a coating film-forming technology using a vinyl-based polymer with a carbosiloxane dendrimer structure in the side chain, and improved water resistance and sebum resistance by applying it to cosmetics to form a cosmetic coating film Make-up durability such as durability and friction resistance. Furthermore, a water-in-oil type skin having a vinyl-based polymer having a carbosiloxane dendrimer structure in the oil phase by effectively utilizing the properties of a large amount of oil-soluble film-forming agent has been developed. cosmetic. (Patent Do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/81A61K8/06A61K8/37A61K8/86A61Q17/04
CPCA61Q17/04A61K8/895A61K2800/544A61K8/062A61K8/463A61K8/55A61K8/8152A61K2800/412A61Q1/02A61Q1/10A61Q5/00A61Q19/00A61Q19/08A61K8/06A61K8/37A61K8/81A61K8/86A61K8/29
Inventor 杉浦常仁神崎康枝堀诚司
Owner DOW TORAY CO LTD