a kind of added tio 2 mbbt water-based dispersion paste

An aqueous dispersion and dispersant technology, which can be applied to skin care preparations, medical preparations containing active ingredients, pharmaceutical formulations, etc., can solve the problems of difficult dispersion, poor absorption effect, application limitations, etc., and achieves easy operation and low cost. , the effect of good stability

Active Publication Date: 2022-05-06
江苏纳欧新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because MBBT is easy to agglomerate, the UV absorption effect is poor, and MBBT particles have certain elasticity and are not easy to disperse, so the application in the field of sun protection is limited.

Method used

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  • a kind of added tio <sub>2</sub> mbbt water-based dispersion paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of added TiO 2 MBBT water-based dispersion slurry, wherein the mass percentage of each component is: MBBT and TiO 2 Powder accounts for 50% and TiO 2 The mass ratio to MBBT is 1:2, the 731A dispersant is 10%, the phenoxyethanol is 3%, and the balance is deionized water. The specific preparation method is as follows:

[0019] Weigh MBBT and TiO according to the formula 2 Put the powder into the sand grinding barrel with deionized water, pre-disperse on the dispersing plate at a speed of 2000r / min for 10min, then add half of the 731A dispersant drop by drop, change the grinding wheel and re-disperse at a speed of 4000r / min Add the remaining 731A dispersant drop by drop. The purpose is to prevent a large number of bubbles from being added at one time and affect the use of the slurry. Add phenoxyethanol and grind for 1 hour to obtain the added TiO 2 MBBT water-soluble dispersion slurry, referred to as dispersion slurry 1.

Embodiment 2

[0021] A kind of added TiO 2 MBBT water-based dispersion slurry, wherein the mass percentage of each component is: MBBT and TiO 2 Powder accounts for 40% and TiO 2 The ratio to MBBT is 1:1, 731A dispersant is 5%, 1,2 hexanediol is 1%, and the balance is deionized water. The specific preparation method is as follows:

[0022] Weigh MBBT and TiO according to the formula 2 Put the powder into the sand grinding barrel with deionized water, pre-disperse on the dispersing plate at a speed of 2000r / min for 10min, then add half of the 731A dispersant drop by drop, change the grinding wheel and re-disperse at a speed of 4000r / min Add the remaining 731A dispersant drop by drop, add 1,2 hexanediol, and then grind for 1 h to obtain the added TiO 2 MBBT water-based dispersion slurry, referred to as dispersion slurry 2.

Embodiment 3

[0024] A kind of added TiO 2 MBBT water-based dispersion slurry, wherein the mass percentage of each component is: MBBT and TiO 2 Powder accounts for 30% and TiO 2 The ratio to MBBT is 1:5, polyglyceryl-10 oleate is 4%, 1,3 butanediol is 3.5%, and the balance is deionized water.

[0025] Weigh MBBT and TiO according to the formula 2 Add the powder to the sand grinding barrel with deionized water, and pre-disperse the dispersing disc at a speed of 2000r / min for 10 minutes. Add the remaining polyglycerol-10 oleate drop by drop at 4000r / min, add 1,3 butanediol, and then grind for 1h to obtain the added TiO 2 MBBT water-based dispersion slurry, referred to as dispersion slurry 3.

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Abstract

The invention discloses a TiO-added 2 MBBT water-based dispersion slurry, including MBBT powder, TiO 2 Powder, dispersant, deionized water and preservative; MBBT and TiO 2 The total weight of the powder is 20 to 70 parts, of which TiO 2 The mass ratio to MBBT is 1:1-5, the weight part of dispersant is 1-10 parts; the weight part of deionized water is 30-80 parts; the weight part of preservative is 0.1-5 parts; the TiO 2 The particle size is 50-100nm, and the MBBT particle size is 100-300nm. The method has the advantages of simple process, convenient operation and low cost, and is easy to form industrialized production. Moreover, the paste prepared in cosmetic formulations is fine and grain-free, with good stability and high sun protection index.

Description

technical field [0001] The present invention belongs to the present invention The present invention belongs to the technical field of cosmetics, especially relates to a method of adding TiO 2 MBBT water-based dispersion slurry. Background technique [0002] In sunlight, there are about 5% of ultraviolet rays with a wavelength ≤ 400nm. Ultraviolet rays in sunlight can be divided according to their wavelengths: long-wave ultraviolet rays with a wavelength of 320-400nm, called A-type ultraviolet rays (UVA); medium-wave ultraviolet rays with a wavelength of 280-320nm, called B-type ultraviolet rays (UVB) and Short-wave ultraviolet rays with a wavelength of 200-280nm are called type C ultraviolet rays (UVC). When UVC passes through the ozone layer, it will be basically absorbed and will not cause harm to the human body. Studies have shown that UVB can cause skin inflammation and sunburn; UVA can cause tanning, and even induce skin cancer in severe cases. Therefore, it is part...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/29A61K8/49A61K8/04A61Q17/04
CPCA61K8/29A61K8/496A61K8/044A61Q17/04A61K2800/592A61K2800/805
Inventor 姚超季金金左士祥严向玉李霞章刘文杰吴凤芹王灿
Owner 江苏纳欧新材料有限公司
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