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Composition containing linoleic acid

A technology of composition and linoleic acid, which is applied in the direction of skin care preparations, cosmetics, cosmetic preparations, etc., can solve the problems of discoloration, odor, and reduction of polyvalent unsaturated fatty acid content in the composition, and improve the stability over time Effect

Active Publication Date: 2019-06-14
SUNSTAR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, polyunsaturated fatty acids are known to be poor in stability over time, and the amount of polyunsaturated fatty acids contained in the composition decreases over time
Furthermore, the composition containing the polyvalent unsaturated fatty acid may change color or have a bad smell

Method used

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  • Composition containing linoleic acid
  • Composition containing linoleic acid

Examples

Experimental program
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preparation example Construction

[0081] The method for preparing the liposome dispersion is not particularly limited, and known methods can be used. For example, the method of following (1)-(4), etc. are mentioned.

[0082] (1) After mixing phospholipid (lecithin), linoleic acid and / or derivatives thereof, and other components, hydration with an aqueous solution containing a pH regulator, polyol, sugar, etc., to form a liposome;

[0083] (2) Dissolving phospholipid (lecithin), linoleic acid and / or its derivatives, and other components in alcohol or polyol, etc., and hydrating with an aqueous solution containing a pH regulator, polyol, sugar, etc., to form Liposome method;

[0084] (3) A method of compounding phospholipids (lecithin), linoleic acid and / or derivatives thereof, and other components in water to form liposomes using ultrasonic waves, French presses, homogenizers, etc.;

[0085] (4) A method of mixing and dissolving phospholipid (lecithin), linoleic acid and / or derivatives thereof, and other comp...

Embodiment

[0101] The following examples are given to describe the present invention in more detail, but the present invention is not limited to the following examples.

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Abstract

Provided is a composition containing linoleic acid and / or a derivative thereof which has enhanced stability over time. More specifically, the composition comprises a continuous phase and multilayeredliposomes dispersed in the continuous phase, wherein the continuous phase contains at least one compound selected from the group consisting of carboxyvinyl polymers, salts thereof, and cellulosic polymers and the multilayered liposomes contain a cationized polymer in the layers and have, enclosed therein, linoleic acid and / or a derivative thereof.

Description

technical field [0001] The present invention relates to compositions containing linoleic acid. Background technique [0002] Polyvalent unsaturated fatty acids represented by linoleic acid are known to have a whitening effect, and they are blended in external compositions (Non-Patent Document 1). [0003] However, it is known that polyvalent unsaturated fatty acids have poor temporal stability, and that the polyvalent unsaturated fatty acids contained in the composition decrease in content over time. Furthermore, the composition which mix|blended polyvalent unsaturated fatty acid may generate|occur|produce discoloration or bad smell. [0004] Especially in Japan, according to laws and regulations, when polyvalent unsaturated fatty acids are mixed as active ingredients in external compositions, it is required that more than 90% of them remain stably for 3 years after the production, so it is desirable to develop more Stabilization technology for unsaturated fatty acids. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/36A61K8/14A61K8/37A61K8/64A61K8/73A61K8/81A61Q19/00
CPCA61K8/645A61K8/731A61Q19/00A61Q19/02A61K8/14A61K8/361A61K8/553A61K8/8147
Inventor 保地秀一岸田聪美堂元贵弘三井司
Owner SUNSTAR KK
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