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Gel paste composition and cosmetic using the gel paste composition

A technology for gel pastes and cosmetic materials, applied in cosmetics, cosmetics, cosmetic preparations, etc., which can solve problems such as difficulty in ensuring oil absorption, storage stability of thickened cosmetic materials, and insufficient compatibility

Active Publication Date: 2016-09-28
SHIN ETSU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, conventional crosslinked organopolysiloxanes have insufficient compatibility with UV absorbers such as ethylhexyl methoxycinnamate, making it difficult to ensure preservation of oil-absorbing and thickening cosmetic materials stability

Method used

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  • Gel paste composition and cosmetic using the gel paste composition
  • Gel paste composition and cosmetic using the gel paste composition
  • Gel paste composition and cosmetic using the gel paste composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0149] The following examples and comparative examples are given to describe the present invention more specifically, but the present invention is not limited by the following examples.

[0150] (A) Synthesis of cross-linked organopolysiloxane

Synthetic example 1

[0152] Add 83.2 g of organohydrogenpolysiloxane represented by the following average composition formula (1; set molecular weight 4162) and polyoxyalkylene represented by the following average composition formula (P1; set molecular weight 2878) to the reactor 143.9 g of base, 340 g of isopropanol, and 0.06 g of 3% by mass chloroplatinic acid ethanol solution, and stirring for 3 hours while maintaining the internal temperature at 70 to 80° C., thereby obtaining a polyoxyalkylene crosslinked organopolysiloxane .

[0153] And 45.4 g of 1% citric acid aqueous solutions were added and mixed, and it heat-processed for 3 hours maintaining internal temperature at 70-80 degreeC. Then, 36.3 g of 1% sodium bicarbonate aqueous solution was added, and it stirred for 1 hour maintaining internal temperature at 40-50 degreeC. After completion of the stirring, the internal temperature was heated to 100° C. under reduced pressure to remove volatile components to obtain an acid-treated polyoxya...

Synthetic example 2

[0157] 83.2 g of organohydrogenpolysiloxane represented by the above average composition formula (1), 150.9 g of polyoxyalkylene represented by the following average composition formula (P2; set molecular weight 3018), isopropyl 352 g of alcohol and 0.06 g of a 3% by mass chloroplatinic acid ethanol solution were stirred for 3 hours while maintaining the internal temperature at 70 to 80° C., thereby obtaining a polyoxyalkylene crosslinked organopolysiloxane.

[0158] And 46.8 g of 1% citric acid aqueous solutions were added and mixed, and it heat-processed for 3 hours maintaining internal temperature at 70-80 degreeC. Then, 37.4 g of 1% sodium bicarbonate aqueous solution was added, and it stirred for 1 hour maintaining internal temperature at 40-50 degreeC. After completion of the stirring, the internal temperature was heated to 100° C. under reduced pressure to remove volatile components to obtain an acid-treated polyoxyalkylene crosslinked organopolysiloxane.

[0159] CH ...

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Abstract

The invention relates to a gel paste composition that contains a crosslinking organopolysiloxane having improved compatibility with ethylhexyl methoxycinnamate and water, and thus exhibits excellent dispersibility when blended to a cosmetic thereby providing good feeling and cosmetic sustainability. The gel paste composition includes (A) a crosslinking organopolysiloxane and (B) a liquid oil, wherein the crosslinking organopolysiloxane (A) is obtained by reacting an organohydrogenpolysiloxane shown by the following general formula (I) with a polyoxyalkylene compound shown by the following general formula (II) in the presence of a catalyst for hydrosilylation reaction, the component (A) containing polyoxyethylene units in an amount of 20 wt% or more, R 1 a H b SiO (4-a-b) / 2 (I) C c H 2c-1 O (C 2 H 4 O) d (C 3 H 6 O) e C c H 2c-1 (II).

Description

technical field [0001] The present invention relates to a gel paste composition and a cosmetic material using the gel paste composition. The gel paste composition is mainly used as a cosmetic material, and because it contains a cross-linked organopolysiloxane Alkanes, while having good coating properties and usability, the cross-linked organopolysiloxane has affinity with water and ethylhexyl methoxycinnamate (OMC). Background technique [0002] Silicone oils have been used as base oils for various compositions in various fields including cosmetics. Especially in the skin care and make-up of cosmetics, it has been widely used in view of its excellent stretchability, refreshing feeling and high safety. The kinematic viscosity is 100mm 2 Low viscosity silicone oil below / s. [0003] However, when using a low-viscosity silicone oil as a base oil to prepare, for example, a paste-like composition with low fluidity, it is necessary to use the following compound as a thickener: d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/89A61K8/04A61K8/37A61Q17/04C08G81/00
CPCA61K8/042A61K8/37A61K8/89A61Q17/04C08G81/00A61Q1/02C08G77/12C08G77/46C08L83/12A61Q1/06A61K8/891A61K8/895A61K8/062A61Q19/00A61K2800/43A61K2800/10A61K2800/591A61K2800/61C08L83/00
Inventor 赤羽绘美早川知宏
Owner SHIN ETSU CHEM CO LTD
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