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Oily composition and rod-shaped medicinal preparation

An oily composition and preparation technology, which can be applied in the directions of drug combination, skin care preparation, drug device, etc., can solve the problem of not being able to obtain sufficient transparency, and achieve the effect of improving product value and improving gloss.

Inactive Publication Date: 2012-04-11
ROHTO PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the embodiment of Patent Document 1, it may not be possible to obtain sufficient transparency

Method used

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  • Oily composition and rod-shaped medicinal preparation
  • Oily composition and rod-shaped medicinal preparation
  • Oily composition and rod-shaped medicinal preparation

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Embodiment Construction

[0022] (oily composition)

[0023] The oily composition of the present invention contains the following components (A), (B) and (C).

[0024] [(A) ingredient]

[0025] (A) Component is N-acyl amino acid derivative represented by following formula (1).

[0026] [Chem 2]

[0027] …Formula 1)

[0028] It should be noted that, in formula (1), R 1 and R 2 are independently a hydrocarbon group with 1 to 26 carbon atoms, and R 3 It is a hydrocarbon group having 7 to 18 carbon atoms, and n is 1 or 2.

[0029] In addition, R 1 and R 2 The hydrocarbon group can be linear, branched, cyclic or any combination thereof. R 1 and R 2 The hydrocarbon group in may be a hydrocarbon group containing an unsaturated bond, but is preferably an alkyl group. R 1 and R 2 The hydrocarbon group is preferably a hydrocarbon group with 1 to 10 carbon atoms, more preferably a straight chain or branched chain alkyl group with 2 to 6 carbon atoms, and even more preferably a straight chain or br...

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Abstract

An oily composition which gives a medicinal lip preparation through solidification, characterized by comprising (A) one or more N-acylamino acid derivatives comprising, for example, two dialkylamides of an N-acylglutamic acid, (B) a polyamide resin comprising, for example, a copolymer of the bisdioctadecylamide of dimeric dilinoleic acid and ethylenediamine, and (C) a liquid oil comprising, for example, a dimer acid ester. Upon solidification, the composition gives a medicinal lip preparation which can exhibit sufficient transparency and give a satisfactory use feeling.

Description

technical field [0001] The present invention relates to an oily composition which is cured to form a stick preparation for lips, and the stick preparation. Background technique [0002] Examples of transparent lipsticks in stick form are described in Patent Document 1 (see [0044], [0045]). [0003] [Patent Document 1] Japanese Patent Laid-Open No. 2002-316971 [0004] However, Patent Document 1 does not refer to the degree of transparency of the product or the feeling of use as a lipstick. [0005] However, stick-form preparations for lips, especially lipsticks, are required to have high transparency from the standpoints of appearance, glossiness during use, and the like. However, according to the embodiment of Patent Document 1, sufficient transparency may not be obtained. [0006] In addition, the lips have a very sensitive feeling compared to other parts of the skin, and sometimes even a small change can make it feel uncomfortable, so it is particularly required that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/44A61K8/37A61K8/88A61K8/92A61Q1/06
CPCA61K8/442A61Q19/001A61Q1/04A61M35/003A61K8/37A61Q1/06A61K8/88A61P17/00
Inventor 小林洋介藤原聪赖和田崇濑户笃
Owner ROHTO PHARM CO LTD