Organic silicon gel as well as preparation method and application thereof

A technology of silicone and gel, which is applied in the field of silicone gel and its preparation, can solve the problems of greasy feeling, skin irritation, difficult product distribution and spreading of the skin, etc., to achieve reduced usage, better water-locking performance, and avoid Effect of local over-crosslinking

Active Publication Date: 2019-01-01
GUANGDONG REBON ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of cosmetics, conventional moisturizers are glycerin or alcohols, etc. When added in a large amount in skin care products and make-up products, it will cause greasy feeling or irritate the skin, making it difficult for the product to distribute and spread on the skin

Method used

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  • Organic silicon gel as well as preparation method and application thereof

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preparation example Construction

[0025] The present invention provides a kind of preparation method of silicone gel, comprises the following steps:

[0026] 1) Add polymethylhydrogensiloxane, hydroxypolysiloxane and carrier fluid into the reaction kettle at a weight ratio of 1:(1.02-1.30):(3-10), add triethyl phosphate, and stir well The temperature is raised to 70-90°C; the carrier fluid is composed of isononyl isononanoate and dimethylsiloxane and has a viscosity of 2-8mm 2 / s mixture;

[0027] This step is to mix the two siloxanes uniformly in the carrier fluid first, and then add triethyl phosphate as a surfactant, which can effectively improve the compatibility of the siloxane with the carrier fluid and the added catalyst, and improve its Reactivity and the uniformity of the obtained gel system; the carrier fluid acts as a reaction medium and a viscosity reducer, which can effectively reduce the large-volume agglomeration of the gel, thereby obtaining a silicone gel with a smaller particle size; dimethy...

Embodiment 1

[0035] A preparation method of organosilicon gel, is characterized in that, comprises the following steps:

[0036] 1) Add 1kg of polymethylhydrogensiloxane, 1.16kg of hydroxypolysiloxane and 6.5kg of carrier fluid into the reaction kettle, add 7.5g of triethyl phosphate, stir evenly and heat to 80°C; the carrier fluid is The viscosity of isononyl isononanoate and dimethylsiloxane is 6mm 2 / s mixture;

[0037] 2) Add 3.5 mg of chloroplatinic acid, stir, and react in vacuum for 6 hours;

[0038] 3) Water-cooled and temperature controlled below 90°C, using a colloid mill for high-speed shearing for 30 minutes to obtain silicone gel.

Embodiment 2

[0040] A preparation method of organosilicon gel, is characterized in that, comprises the following steps:

[0041] 1) Add 1kg of polymethylhydrogensiloxane, 1.02kg of hydroxypolysiloxane and 10kg of carrier fluid into the reaction kettle, add 5g of triethyl phosphate, stir evenly and heat to 90°C; the carrier fluid is made of isononyl The viscosity of isononyl ester and dimethylsiloxane is 8mm 2 / s mixture;

[0042] 2) Add 2mg of chloroplatinic acid, stir, and react in vacuum for 2h;

[0043] 3) Water-cooled and temperature controlled below 90°C, using a colloid mill for high-speed shearing for 30 minutes to obtain silicone gel.

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Abstract

The invention discloses a preparation method of organic silicon gel. The preparation method comprises the following steps: 1) adding polymethylhydrosiloxane, hydroxyl polysiloxane and carrier fluid into a reaction kettle according to the weight ratio of 1 to (1.02 to 1.30) to (3 to 10); adding triethyl phosphate; uniformly stirring and raising the temperature to 70 to 90 DEG C, wherein the carrierfluid is a mixed solution which is composed of isononyl isononanoate and dimethyl siloxane and has the viscosity of 2 to 8 mm<2>/s; 2) adding chloroplatinic acid, stirring and heating and reacting; and 3) controlling the temperature to be 90 DEG C or lower and shearing at a high speed to obtain the organic silicon gel. The organic silicon gel disclosed by the invention has a relatively suitable viscosity range and a relatively excellent water locking property, and has a relatively good application prospect in the field of cosmetics.

Description

technical field [0001] The invention relates to the technical field of organosilicon materials, in particular to an organosilicon gel and its preparation method and application. Background technique [0002] In the field of cosmetics, conventional moisturizers are glycerin or alcohols, etc. When added in large amounts in skin care products and make-up products, it will produce greasy feeling or irritate the skin, making it difficult for the product to distribute and spread on the skin. When new moisturizers such as panthenol or niacinamide are added in large amounts in skin care and make-up products, they will produce a sticky feeling. [0003] Silicone fluid is a new type of cosmetic additive, which can give skin care products or makeup better spreadability, give cosmetics a smooth and even touch, and have better luster and refreshment after use. Contents of the invention [0004] In order to overcome the deficiencies of the prior art, the object of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/892A61K8/891A61K8/04A61Q19/00
CPCA61Q19/00A61K8/042A61K8/891A61K8/892A61K2800/95A61K2800/10
Inventor 陈继勤
Owner GUANGDONG REBON ADVANCED MATERIALS CO LTD
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