Cosmetic

A cosmetic, chemical formula technology, applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., can solve the problems of insufficiency, greasy feeling, stability, feeling of use, etc., achieve high stability, solve stability problems, and last. good makeup effect

Inactive Publication Date: 2020-06-26
SHIN ETSU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Greasy, although there are reports that stability can be improved by using highly polar oils or 4-tert-butyl-4'-methoxydibenzoylmethane, especially when utilizing solid organic UV absorbers feel, there is a problem in the feeling of use (patent documents 1, 2)
[0003] On the other hand, among oil components, silicone oil has a dry touch, and although attempts have been made to use silicone oil and an organic ultraviolet absorber together, there are still problems in terms of stability and usability (Patent Documents 3 and 4)
[0004] In addition, although methods using modified silicones have been proposed, they are not sufficient (Patent Documents 5 and 6)

Method used

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  • Cosmetic
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Examples

Experimental program
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Embodiment

[0092] Hereinafter, although the synthesis example and the cosmetics of this invention are shown, the Example and a comparative example are shown, and this invention is concretely demonstrated, this invention is not limited to the following example. In addition, "%" described below means "mass%" unless otherwise specified, and represents the mass% of each component when the whole mass of each example is 100%. The viscosity is a value at 25° C. measured with a Canon-Fenske viscometer.

Synthetic example (1

[0094] Add 150 g of 2-allylphenol and 0.04 g of 2-propanol 3% of chloroplatinic acid tetramethyldivinyldisiloxane complex to a glass flask equipped with a stirrer, a thermometer, and a reflux condenser The solution was heated to 80°C. 248 g of heptamethylhydrotrisiloxane was added dropwise with stirring, and aged at 100° C. for 3 hours. The obtained reactant was stripped under reduced pressure at 150° C. under nitrogen bubbling to remove unreacted raw materials to obtain an organopolysiloxane having the following structure and a viscosity of 24 mm 2 / s light brown transparent liquid.

[0095] [chemical formula 6]

[0096]

Synthetic example (2

[0098] Add the 2-propanol 3% solution of the eugenol of 53g and the chloroplatinic acid tetramethyldivinyldisiloxane complex of 0.01g in the glass flask that is equipped with stirrer, thermometer, reflux condenser, be heated up to 80°C. 73 g of heptamethylhydrotrisiloxane was added dropwise with stirring, and aged at 100° C. for 3 hours. The obtained reactant was stripped under reduced pressure at 160° C. under nitrogen bubbling to remove unreacted raw materials to obtain an organopolysiloxane with the following structure and a viscosity of 19 mm 2 / s light brown transparent liquid.

[0099] [chemical formula 7]

[0100]

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Abstract

The present invention is a cosmetic characterized by containing (A) an organo(poly)siloxane represented by general formula (1). There is thereby provided a cosmetic having high stability and excellentmakeup durability while being spreadable and having a refreshing feel. Formula (1) [in the formula, R1 represents a group other than formula (2) selected from C1-C20 alkyl groups and C6-C20 aryl groups, R2 and R3 are R1 or formula (2), and n is an integer of 0-3. At least one of R2 and R3 is formula (2). Formula (2) (in the formula, X represents a C2-C20 alkylene group, and Y represents a hydrogen atom, a C1-C20 alkyl group, a C6-C20 aryl group, a C7-C40 aralkyl group, a C1-C20 alkyloxy group, a C6-C20 aryloxy group, a C7-C40 arylalkyloxy group, or a halogen atom.)]

Description

technical field [0001] The present invention relates to a cosmetic. Background technique [0002] UV absorbers are used in sunscreen cosmetics, and UV absorbers often create a sticky or greasy feel when applied. Greasy, although there are reports that stability can be improved by using highly polar oils or 4-tert-butyl-4'-methoxydibenzoylmethane, especially when utilizing solid organic UV absorbers Feeling, there is a problem (patent documents 1, 2) on usability. [0003] On the other hand, among oil components, silicone oil has a dry touch, and although attempts have been made to use silicone oil and an organic ultraviolet absorber together, there are still problems in terms of stability and usability (Patent Documents 3 and 4). [0004] In addition, although methods using modified silicones have been proposed, they are not sufficient (Patent Documents 5 and 6). Furthermore, although it is described that an attempt is made to impart a secondary adhesion reduction effect ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/58A61Q1/06A61Q1/10A61Q17/04A61Q19/10
CPCA61Q17/04A61K8/585A61K8/891A61Q1/06A61Q1/10A61Q19/10A61K8/92
Inventor 森谷浩幸龟井正直
Owner SHIN ETSU CHEM CO LTD
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