A kind of silicone gel and its preparation method and application

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 The effect of local over-crosslinking

Active Publication Date: 2022-06-14
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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  • A kind of silicone gel and its preparation method and application

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preparation example Construction

[0025] The invention provides a preparation method of organosilicon gel, comprising the following steps:

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

[0027] In this step, the two siloxanes are mixed uniformly in the carrier fluid first, and triethyl phosphate is added as a surfactant, which can effectively improve the compatibility of the siloxane with the carrier fluid and the catalyst added later, and improve its The 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 bulk agglomeration of the gel, thereby obtaining a silicone gel with a smaller particle size; dimethylsiloxane ...

Embodiment 1

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

[0036] 1) 1kg polymethyl hydrogen siloxane, 1.16kg hydroxypolysiloxane and 6.5kg carrier fluid are added to the reaction kettle, 7.5g triethyl phosphate is added, and stirring is uniformly heated to 80°C; the carrier fluid is composed of The viscosity of isononyl isononanoate and dimethylsiloxane is 6mm 2 / s mixture;

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

[0038] 3) Use a colloid mill for high-speed shearing for 30min under water cooling and temperature control below 90°C to obtain an organosilicon gel.

Embodiment 2

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

[0041] 1) 1kg polymethyl hydrogen siloxane, 1.02kg hydroxypolysiloxane and 10kg carrier fluid are added to the reaction kettle, 5g triethyl phosphate is added, and stirring is uniformly heated to 90°C; The viscosity of isononyl acid and dimethylsiloxane is 8mm 2 / s mixture;

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

[0043] 3) Use a colloid mill for high-speed shearing for 30min under water cooling and temperature control below 90°C to obtain an organosilicon gel.

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Abstract

The invention discloses a preparation method of organosilicon gel, which comprises the following steps: 1) combining polymethylhydrogensiloxane, hydroxyl polysiloxane and carrier fluid according to 1:(1.02-1.30):(3-10 ) into the reaction kettle, add triethyl phosphate, stir evenly and heat up to 70-90°C; the carrier fluid is composed of isononyl isononanoate and dimethylsiloxane and has a viscosity of 2-8mm2 / s mixed solution; 2) Add chloroplatinic acid, stir and heat, and react; 3) Control temperature below 90°C and shear at high speed to obtain silicone gel. The organosilicon gel has a more suitable viscosity range and better water-retaining properties, and has better application prospects 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 a preparation method and application thereof. Background technique [0002] In the field of cosmetics, conventional humectants are glycerin or alcohols, etc., when added in large amounts in skin care products and color cosmetics products, it will produce a greasy feeling or irritate the skin, making the product difficult to distribute and spread on the skin. Newer moisturizers such as panthenol or niacinamide, when added in high amounts to skincare and color cosmetics, can create a sticky feel. [0003] Silicone fluid is a new type of cosmetic additive, which can give skin care products or color cosmetics better spreadability, smooth and uniform touch to cosmetics, and better luster and refreshment after use. SUMMARY OF THE INVENTION [0004] In order to overcome the deficiencies of the prior art, the object of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Patents(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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