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Organic and inorganic composite powder for blocking ultraviolet rays and cosmetic composition containing the composite powder

A cosmetic composition and inorganic composite technology, which is applied in cosmetics, cosmetic preparations, cosmetic preparations, etc., can solve the problems of using tackifiers, uneven surface treatment films, and little progress in research, and achieve smooth use. Sensation, excellent moisturizing power, excellent UV blocking function and effect of dispersibility

Active Publication Date: 2019-04-30
AMOREPACIFIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The medium in the method of dispersing in the medium uses oils such as alkanol benzoates and polydimethylsiloxanes, but these mediums have the property of being only compatible with sunscreen and make-up cosmetic compositions. There are limitations in phase mixing, and there are disadvantages such as the need to use a thickener for the stability of the dispersion
In addition, the method of surface treatment of skin-friendly substances on the surface of the powder has disadvantages such as limited selection of skin-friendly substances, uneven surface treatment film caused by inorganic bonding on the surface of inorganic powders, etc.
In addition, research on inorganic powders that can be dispersed in a medium while having a uniform surface treatment film on the surface has not made much progress

Method used

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  • Organic and inorganic composite powder for blocking ultraviolet rays and cosmetic composition containing the composite powder
  • Organic and inorganic composite powder for blocking ultraviolet rays and cosmetic composition containing the composite powder
  • Organic and inorganic composite powder for blocking ultraviolet rays and cosmetic composition containing the composite powder

Examples

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Embodiment

[0032] The present invention will be further described in detail through examples and experimental examples below, but the present invention is not limited to these examples.

reference example 1

[0033] Reference Example 1: Manufacture of Examples 1-4

[0034] The organic-inorganic composite powders of Examples 1-4 were produced through the following two-step process.

[0035] Step 1: Manufacturing a composite in which the grafting agent is bound to the surface of the hydrophilic inorganic powder.

[0036] Inorganic powders incorporating grafting agents were produced according to the compositions in Tables 1 and 2 below.

[0037] Table 1

[0038] Number

Raw material name

content

1

Hydrophilic titanium dioxide or zinc oxide

100g

2

Trichloroethyl isocyanate

5g

3

toluene

1,000ml

[0039] Table 2

[0040] Number

Raw material name

content

1

Hydrophilic titanium dioxide or zinc oxide

100g

2

Trichloroacetyl chloride

5g

3

Triethylamine

3g

4

toluene

1,000ml

[0041] Production method

[0042] 1) Mix raw materials 1-3 in Table 1 or raw mat...

reference example 2

[0056] Reference Example 2: Manufacture of Comparative Example 1-2

[0057] In step 2 of the reference example 1, the surface treatment agent of the inorganic powder uses triethoxyoctyl silane to replace the phospholipid 2-methacryloyloxyethylphosphorylcholine or 2-methacryloyloxyethylphosphocholine. Except for the phospholipid, the triethoxyoctylsilane-surface-treated silica of Comparative Example 1-2 was produced in the same manner as in Reference Example 1. At this time, in Comparative Example 1, trichloroethyl isocyanate was used as a grafting agent, and in Comparative Example 2, trichloroacetyl chloride was used as a grafting agent.

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Abstract

The invention relates to organic and inorganic composite powders used to block ultraviolet light, and a cosmetic composition including the composite powders, and specifically relates to organic and inorganic composite powders whose ultraviolet light blocking function and dispersity are improved by using phospholipid to process surfaces of inorganic powders, and the cosmetic composition including the powders. When the cosmetic composition is coated on skin, use feeling and moisturizing ability are improved.

Description

technical field [0001] The present invention relates to an organic-inorganic composite powder for blocking ultraviolet rays and a cosmetic composition containing the composite powder, in particular, to an organic powder that improves the ultraviolet blocking function and dispersibility by treating the surface of the inorganic powder with phospholipids. . Inorganic composite powder and a cosmetic composition containing the powder to improve the feeling of use and moisturizing power when applied to the skin. Background technique [0002] The ultraviolet rays reaching the earth from the sun have side effects on the human body, so the demand for UV blockers is increasing. UVA in ultraviolet rays reaches the earth in a certain amount regardless of seasons and weather, and affects the occurrence of sun burns, skin aging, and skin cancer. reason. [0003] Conventionally, titanium dioxide and zinc oxide are mainly used as inorganic powders for ultraviolet blocking in cosmetic comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/55A61K8/29A61K8/27A61Q17/04
Inventor 梁荣准李炫锡崔庚浩申松锡崔荣镇
Owner AMOREPACIFIC CORP