JPS6112618A - Dermal drug for external use - Google Patents

Dermal drug for external use

Info

Publication number
JPS6112618A
JPS6112618A JP13416584A JP13416584A JPS6112618A JP S6112618 A JPS6112618 A JP S6112618A JP 13416584 A JP13416584 A JP 13416584A JP 13416584 A JP13416584 A JP 13416584A JP S6112618 A JPS6112618 A JP S6112618A
Authority
JP
Japan
Prior art keywords
benzoyl peroxide
polypropylene glycol
external use
dissolved
dermal drug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13416584A
Other languages
Japanese (ja)
Inventor
Seiji Nishiyama
西山 聖二
Yoshimaru Kumano
熊野 可丸
Katsura Shimizu
桂 清水
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shiseido Co Ltd
Original Assignee
Shiseido Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shiseido Co Ltd filed Critical Shiseido Co Ltd
Priority to JP13416584A priority Critical patent/JPS6112618A/en
Publication of JPS6112618A publication Critical patent/JPS6112618A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:A dermal drug for external use containing benzoyl peroxide and polypropylene glycol. CONSTITUTION:A dermal drug for external use containing 0.001-4wt% benzoyl peroxide (colorless, odorless and tasteless crystal solid, stable at room temperature, and safe for the human body though with powerful oxidizing action) and one or two or more of polypropylene glycol (2-70 polymerization degree of propylene glycol and 130-4,000mol.wt.). The amount of the polypropylene glycol to be incorporated is preferably >=20 times of that of the benzoyl peroxide. Another component, e.g. chelating agent such as EDTA, antioxidant such as BHT, humectant such as sorbitol, alcohol such as ethanol, organic acid such as malic acid, inorganic acid such as malic acid or thickener, may be incorporated therewith if necessary.

Description

【発明の詳細な説明】 [産業上の利用分野]     一 本発明は過酸化ベンゾイルとポリプロピレングーリコー
ルとを含有することを特徴とする過酸化ベンゾイルが溶
解された皮膚外用剤に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an external preparation for skin in which benzoyl peroxide is dissolved, which is characterized by containing benzoyl peroxide and polypropylene glycol.

[従来の技術] 60年以上の間、過酸化ベンゾイルは火傷、静脈瘤性潰
瘍、尋當性毛唐、皮脂漏および座癒などの皮膚創傷の局
所治療に使用されてきた。とくに、表皮剥離作用および
抗菌作用は有効であり、座庶の治療剤として汎用されて
いる。
BACKGROUND OF THE INVENTION For more than 60 years, benzoyl peroxide has been used for the topical treatment of skin wounds such as burns, varicose ulcers, hair rashes, seborrhea and acne scars. In particular, it has effective epidermal exfoliating and antibacterial effects, and is widely used as a therapeutic agent for acne scars.

[発明が解決しようとする問題点コ しかしながら、過酸化ベンゾイルは溶媒に極めて溶解し
にくいので製品中に配合しようとする場合には懸濁状態
で配合せざるをえず、このために外観を考慮して乳化状
にしたり、沈降を防止するため系にある程度以上の粘度
を持たせなければならないなど、製品形態にかなりの制
約を受けているのが現状である。
[Problems to be solved by the invention] However, benzoyl peroxide is extremely difficult to dissolve in solvents, so if it is to be incorporated into a product, it must be incorporated in a suspended state. At present, there are considerable restrictions on product form, such as the need to make an emulsified product or to provide a system with a certain level of viscosity to prevent sedimentation.

本発明者らはこのような事情にかんがみ、上記の欠点を
解決すべく鋭意研究を重ねた結果、過酸化ベンゾイルと
ともにポリプロピレングリコールを配合したならば、過
酸化ベンゾイルを系中に溶解し得ることを見いだし、本
発明を完成するに至った。
In view of these circumstances, the inventors of the present invention have conducted extensive research to solve the above-mentioned drawbacks, and have found that if polypropylene glycol is blended with benzoyl peroxide, benzoyl peroxide can be dissolved in the system. This discovery led to the completion of the present invention.

[問題点を解決するための手段および作用]すなわち、
本発明は、下記2成分を含有することを特徴とする過酸
化ベンゾイルが溶解された皮膚外用剤である。
[Means and actions for solving the problem] That is,
The present invention is an external preparation for skin in which benzoyl peroxide is dissolved, which is characterized by containing the following two components.

(i)過酸化ベンゾイル (ii )ポリプロピレングリコール 以下、本発明の構成について詳述する。(i) Benzoyl peroxide (ii) Polypropylene glycol Hereinafter, the configuration of the present invention will be explained in detail.

本発明で用いる過酸化ベンゾイルは無色、無臭、無味の
結晶性固体で、室温で安定である。過酸化ベンゾイルは
強い酸化作用を有するが人体には安全である。
Benzoyl peroxide used in the present invention is a colorless, odorless, and tasteless crystalline solid that is stable at room temperature. Although benzoyl peroxide has a strong oxidizing effect, it is safe for the human body.

本発明で用いられるポリプロピレングリコールはプロピ
レングリコールが重合したもので重合度は2〜70(分
子量約130〜4000)までのものであり、これらの
うちから任意の一種又は二種以上が選ばれて用いられる
The polypropylene glycol used in the present invention is a polymerized propylene glycol with a degree of polymerization of 2 to 70 (molecular weight approximately 130 to 4000), and any one or more of these may be selected and used. It will be done.

過酸化ヘンジイルの配合量は皮膚外用剤全量中の0.0
01〜4重量%である。
The amount of hendiyl peroxide is 0.0 in the total amount of the skin external preparation.
01 to 4% by weight.

ポリプロピレングリコールの配合量は過酸化ベンゾイル
の20重量倍以上であることが好ましい。
The amount of polypropylene glycol blended is preferably at least 20 times the weight of benzoyl peroxide.

本発明の皮膚外用剤には上記の必須構成成分に加えて、
必要に応じて、通當医薬品、化粧品分野で用いられるそ
の他の成分、例えばEDTAなどのキレート化剤、BH
T、ヒドロキノン、トコフェロールなどの酸化防止剤、
ソルビトール、グリセリンなどの保湿剤、エタノール、
IPAなどのアルコール、クエン酸、乳酸、リンゴ酸な
どの有機酸、リン酸などの無機酸、増粘剤、水などを配
合することができる。当然のことながら、これらの成分
は本発明の効果を損なわない質的量的範囲内で用いられ
なければならない。
In addition to the above-mentioned essential components, the skin external preparation of the present invention includes:
If necessary, other ingredients used in the pharmaceutical and cosmetic fields, such as chelating agents such as EDTA, BH
Antioxidants such as T, hydroquinone, and tocopherol,
Humectants such as sorbitol and glycerin, ethanol,
Alcohols such as IPA, organic acids such as citric acid, lactic acid, and malic acid, inorganic acids such as phosphoric acid, thickeners, water, etc. can be blended. Naturally, these components must be used within a qualitative and quantitative range that does not impair the effects of the present invention.

[実施例] つぎに、実施例により本発明をさらに詳細に説明する。[Example] Next, the present invention will be explained in more detail with reference to Examples.

本発明はこれにより限定されるものではない。The present invention is not limited thereby.

配合量は重量%である。The blending amount is in weight%.

実施例1               (重量%)■
過酸化ベンゾイル            4.0■ポ
リプロピレングリコール(分子量1000)  96.
0■に■を加え、室温にて攪拌溶解した。
Example 1 (weight%) ■
Benzoyl peroxide 4.0 ■Polypropylene glycol (molecular weight 1000) 96.
■ was added to 0■, and the mixture was stirred and dissolved at room temperature.

実施例2              (重量%)■過
酸化ベンゾイル            2.5■ポリ
プロピレングリコール(分子量4000)  97.5
■に■を加え、室温にて攪拌溶解した。
Example 2 (wt%) ■ Benzoyl peroxide 2.5 ■ Polypropylene glycol (molecular weight 4000) 97.5
(2) was added to (2), and the mixture was stirred and dissolved at room temperature.

実施例3              (重量%)■過
酸化ベンゾイル            1.0■ジプ
ロピレングリコール         99.0■に■
を加え、室温にて攪拌溶解した。
Example 3 (% by weight) ■ Benzoyl peroxide 1.0 ■ Dipropylene glycol 99.0 ■ ■
was added and dissolved with stirring at room temperature.

実施例4              (重量−)■過
酸化ベンゾイル            1.0■ポリ
プロピレングリコール〈分子量2000>  、90.
0■ポリプロピレングリコール(分子量3000)  
 9.0■■を混合L7、これに■を加えて室温で攪拌
溶解した。
Example 4 (Weight -) ■ Benzoyl peroxide 1.0 ■ Polypropylene glycol <molecular weight 2000>, 90.
0 ■ Polypropylene glycol (molecular weight 3000)
9.0 ■■ was mixed in L7, and ■ was added thereto, and the mixture was stirred and dissolved at room temperature.

実施例5              (重量%)■過
酸化ベンゾイル             2・5■ポ
リプロピレングリコール(分子量1000)  96.
44■ザリチル@                 
0.01■乳酸                  
 0.05■楕製水                
 1.0■に■■を加えて攪拌溶解し、この溶液を、■
に■を加えて攪拌した溶液中へ添加して溶解した。
Example 5 (wt%) ■ Benzoyl peroxide 2.5 ■ Polypropylene glycol (molecular weight 1000) 96.
44 ■ Zarichil @
0.01 ■ Lactic acid
0.05 ■ Oval water
Add ■■ to 1.0■, stir and dissolve, and add this solution to ■
was added to the solution and dissolved in the stirred solution.

実施例6              (重量%)■過
酸化ベンゾイル            2.5■ポリ
プロピレングリコール(分子量1000)  81.8
2■グリセリン                0.
2■クエン酸                   
0.01■リン酸                 
   0.020精製水              
   1.0■に■、を加えて攪拌溶解し、つぎに■を
加えて攪拌溶解する。この溶液中に、■に■を攪拌溶解
した溶液を加えて攪拌溶解する。さらに、■■を加えて
攪拌溶解した。
Example 6 (wt%) ■ Benzoyl peroxide 2.5 ■ Polypropylene glycol (molecular weight 1000) 81.8
2 ■ Glycerin 0.
2 ■ Citric acid
0.01 ■ Phosphoric acid
0.020 purified water
Add (■) to 1.0 (■) and stir and dissolve, then add (■) and stir and dissolve. A solution obtained by stirring and dissolving ■ into ■ is added to this solution, and the mixture is stirred and dissolved. Furthermore, ■■ was added and dissolved with stirring.

実施例7              (重量%〉■過
酸化ベンゾイル            0.05■ポ
リプロピレングリコール(分子11000)  52.
31■エタノール               33
.44■ジプロピレングリコール         3
.00グリセリン                1
.5■コレスタノールのエチレン オキサイド(30モル)付加体 (日光ケミカルズ株式会社製ニンコールDHC−30)
0.2 0グリセリルトリ −2−エチルヘキサノエート  2
.4■楕製水                 7.
1■に■を加えて攪拌溶解し、これに■と■のうらの2
.1重量%とを加えて攪拌溶解し、エタノール相とする
。別に、■■■を混合して加熱攪拌溶解し、これに■の
うちの0.7重量%を加えて攪拌溶解し、室温まで冷却
する。これに■と■の残部とを加えて攪拌して溶解する
。このものを先のエタノール相に加えて攪拌溶解した。
Example 7 (% by weight) ■ Benzoyl peroxide 0.05 ■ Polypropylene glycol (molecules 11000) 52.
31■Ethanol 33
.. 44 ■ Dipropylene glycol 3
.. 00 Glycerin 1
.. 5 ■ Ethylene oxide (30 mol) adduct of cholestanol (Ninkol DHC-30 manufactured by Nikko Chemicals Co., Ltd.)
0.2 0 Glyceryl tri-2-ethylhexanoate 2
.. 4 ■ Oval water 7.
Add ■ to 1■, stir and dissolve, and add ■ and 2 behind ■.
.. 1% by weight was added and dissolved with stirring to form an ethanol phase. Separately, ■■■ are mixed, heated and stirred and dissolved, 0.7% by weight of ■ is added thereto, stirred and dissolved, and cooled to room temperature. Add ① and the remainder of ① to this and stir to dissolve. This product was added to the ethanol phase and stirred to dissolve.

[発明の効果] 実施例1〜7は、いずれも従来にはない過酸化ベンゾイ
ルが系中に溶解した皮膚外用剤であり、室温、1力月経
過後も沈澱などは発生せず安定性に優れていた。
[Effects of the Invention] Examples 1 to 7 are all skin preparations in which benzoyl peroxide, which has never existed before, is dissolved in the system, and they are stable without precipitation even after 1 month at room temperature. It was excellent.

また、これらの皮膚外用剤は座連治療防止効果の点でも
良好なものであった。過酸化ベンゾイルが溶解されてい
ることにより有効表面積が最大に発揮されるので、従来
の懸濁タイプよりも薬効的に有利であると考えられる。
In addition, these skin external preparations were also good in terms of their effectiveness in preventing the treatment of acne scars. Since the effective surface area is maximized by dissolving benzoyl peroxide, it is considered to be more medicinally advantageous than the conventional suspension type.

Claims (1)

【特許請求の範囲】[Claims] (1)下記2成分を含有することを特徴とする過酸化ベ
ンゾイルが溶解された皮膚外用剤。 (i)過酸化ベンゾイル (ii)ポリプロピレングリコール
(1) An external skin preparation in which benzoyl peroxide is dissolved, which is characterized by containing the following two components. (i) Benzoyl peroxide (ii) Polypropylene glycol
JP13416584A 1984-06-29 1984-06-29 Dermal drug for external use Pending JPS6112618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13416584A JPS6112618A (en) 1984-06-29 1984-06-29 Dermal drug for external use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13416584A JPS6112618A (en) 1984-06-29 1984-06-29 Dermal drug for external use

Publications (1)

Publication Number Publication Date
JPS6112618A true JPS6112618A (en) 1986-01-21

Family

ID=15121968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13416584A Pending JPS6112618A (en) 1984-06-29 1984-06-29 Dermal drug for external use

Country Status (1)

Country Link
JP (1) JPS6112618A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445823A (en) * 1994-10-20 1995-08-29 The Procter & Gamble Company Dermatological compositions and method of treatment of skin lesions therewith

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5445823A (en) * 1994-10-20 1995-08-29 The Procter & Gamble Company Dermatological compositions and method of treatment of skin lesions therewith
US5932228A (en) * 1994-10-20 1999-08-03 The Procter & Gamble Company Dermatological compositions and method of treatment of skin lesions therewith

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