JP4096586B2 - Stable hydrogenated polybutene - Google Patents

Stable hydrogenated polybutene Download PDF

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Publication number
JP4096586B2
JP4096586B2 JP2002077189A JP2002077189A JP4096586B2 JP 4096586 B2 JP4096586 B2 JP 4096586B2 JP 2002077189 A JP2002077189 A JP 2002077189A JP 2002077189 A JP2002077189 A JP 2002077189A JP 4096586 B2 JP4096586 B2 JP 4096586B2
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Prior art keywords
antioxidant
hydrogenated polybutene
hydroxy
benzotriazole
ultraviolet absorber
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JP2003268178A (en
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啓三 阿南
尚賢 古賀
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NOF Corp
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NOF Corp
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Description

【0001】
【発明の属する分野】
本発明は、化粧料、トイレタリー、殺虫剤、洗浄剤に用いることのできる経時的な臭気変化の極めて小さい水添ポリブテン組成物に関する。
【0002】
【従来の技術】
低粘度ポリブテンは希釈溶剤、芳香剤、金属洗浄剤等に使用され、また中高粘度ポリブテンについては潤滑油、粘着材、可塑剤、加工油などの用途に幅広く使用されている。ポリブテンの安定性面から用途に応じては、これらに水素を添加し処理した水添ポリブテンが用いられている。しかし、水添ポリブテンは、酸化されやすく経日的変化が起き易い。長期間保存あるいは長期間使用で臭気変化、着色が生じるため、特に安定性が求められ臭気を嫌う化粧料など用途での使用には問題があった。
【0003】
このような問題を解決するために、製品の安定性を図る目的で水添工程が改良されているほか、臭気を低減させる目的で無機材による吸着処理、水洗浄、水蒸気蒸留等の方法が製品になされている。しかし、これらの方法は初期の臭気低減に効果をもたらすものの経日的な臭気変化を十分に防ぐには至っていない。また、石油製品添加剤第二版(桜井俊男編著、幸書房出版、昭和49年)には安定性を向上させるために、酸化防止剤を添加することが記載されているが、酸化防止剤単独の添加では十分な効果が認められない。
【0004】
【発明が解決しようとする課題】
本発明の目的は、化粧料、トイレタリー、殺虫剤、洗浄剤等に用いることのできる安定な水添ポリブテン組成物を提供するものである。
【0005】
【課題を解決するための手段】
本発明を、以下に示す。
(1)トコフェロール、フェノール系酸化防止剤、硫黄系酸化防止剤及びりん系酸化防止剤の中から選ばれる少なくとも1種以上である酸化防止剤20〜500ppm及びベンゾトリアゾール系紫外線吸収剤、ベンゾフェノン系紫外線吸収剤、サリチル酸系紫外線吸収剤から選択される紫外線吸収剤100〜800ppmを含有し、酸化防止剤/紫外線吸収剤比が濃度比で1以下である水添ポリブテン組成物。
(2)前記(1)の水添ポリブテン組成物を原料として配合してなる化粧料。
【0006】
【発明の実施の形態】
本発明において、水添ポリブテンとはイソブチレン単重合体、イソブチレンとその異性体、あるいは他のオレフィンとの共重合体であって、これらに水素添加した炭化水素化合物である。水添ポリブテンの製造方法としては、例えば、イソブチレン単独やイソブチレンとその異性体、あるいは他のオレフィンからなるガス混合物を塩化アルミニウム等の酸触媒を用いてこれを重合した後、重合物を水素添加する製造方法が挙げられる。この場合、触媒の塩化アルミニウムの添加量あるいは反応温度等を調整することにより低粘度の軽質ポリブテンから高粘度のポリブテンが製造できる。ここで、他のオレフィンとしてはブテン−1、シス−2−ブテン、トランス−2−ブテンなどが挙げられる。水添ポリブテンの水素添加の程度はヨウ素価で評価されるが、本発明において化粧料用途では、ヨウ素化は1.5以下であることが好ましい。
【0007】
本発明の酸化防止剤及び紫外線吸収剤を含有する水添ポリブテン組成物は、水添ポリブテンに酸化防止剤及び紫外線吸収剤を添加することにより製造することができる。本発明で使用される酸化防止剤としては、フェノール系、りん系、硫黄系、アミン系、有機金属系の酸化防止剤;天然酸化防止剤等が挙げられる。詳細には、例えば、2,6−ジt−ブチル−p−クレゾール、2,6−ジt−ブチル−フェノール、2,4−ジメチル−6−t−ブチルフェノール、ブチルヒドロキシアニソール、2,2′−メチレンビス(4−メチル−6−t−ブチルフェノール)、4,4′ブチリデンビス(3−メチル−6−t−ブチルフェノール)、テトラキズ〔メチレン−3(3,5−ジt−ブチル−4−ヒドロキシフェニル)プロピオネート〕メタン、1,1,3−トリス(2−メチル−4−ヒドロキシ−5−t−ブチルフェニル)ブタン等のフェノール系酸化防止剤;ジラウリルチオジプロピオネート、ジステアリルチオジプロピオネート、ラウリルステアリルチオジプロピオネート、ジステアリルβ,β′−チオジブチレート、2−メルカプトベンゾイミダゾール、ジラウリルサルファイド、2,4−ビス(n−オクチルチオ)−6−(4−ヒドロキシ−3,5−ジ−t−ブチルアニリノ)1,3,5−トリアジン、2,2−チオジエチレンビス〔3−(3,5−ジ−t−ブチル−4−ヒドロキシフェニル)プロピオネート〕等の硫黄系酸化防止剤;トリフェニルフォスファイト、トリオクタデシルフォスファイト、トリデシルフォスファイト、トリラウリルトリチオフォスファイト、3,5−ジ−t−ブチル−4−ヒドロキシベンジルフォスフォネート−ジエチルエステル、テトラキス(2,4−ジ−t−ブチルフェニル)−4,4′−ビフェニレンフォスファイト、トリス(2,4−ジ−t−ブチルフェニル)フォスファイト等のりん系酸化防止剤;フェニル−β−ナフチルアミン、α−ナフチルアミン、N,N′−ジ−t−ブチル−p−フェニレンジアミン、N,N′−ジフェニル−p−フェニレンジアミン、N,N′−ヘキサメチレンビス(3,5−ジ−t−ブチル−4−ヒドロキシ−ヒドロキシンナマミド)等のアミン系酸化防止剤;トコフェロール、レシチン、グアヤク脂等天然の酸化防止剤のほか没食子酸プロピル、エリソルビン酸等が挙げられる。酸化防止剤は、単独で、又は併用して使用できる。特に、トコフェロール、フェノール系酸化防止剤、硫黄系酸化防止剤又はりん系酸化防止剤の使用は少量でも効果があるので好ましい。
【0008】
本発明において、酸化防止剤の含有量は重量濃度で1〜1000ppmの範囲が好ましい。含有量が1000ppmを超えると酸化防止剤自体による着色や臭気の発生を生じやすくなる。トコフェロール、フェノール系酸化防止剤、硫黄系酸化防止剤又はりん系酸化防止剤の酸化防止剤を含有する場合は、重量濃度で1〜500ppmの範囲が好ましい。
【0009】
本発明で使用される紫外線吸収剤としては、ベンゾトリアゾール系、オキザリックアニリド系、ヒンダードアミン系、ベンゾフェノン系、サリチル酸系等の紫外線吸収剤が挙げられる。詳細には、例えば2−(2'−ヒドロキシ−5'−メチルフェニル)−ベンゾトリアゾ−ル、2−(2'−ヒドロキシ−3',5'−ジ−t−ブチルフェニル)−5−クロロベンゾトリアゾ−ル、2−(2'−ヒドロキシ−3'−t−ブチル−5'−メチルフェニル)−5−クロロベンゾトリアゾ−ル、2−(2'−ヒドロキシ−3',5'−ジ−t−アミルフェニル)−ベンゾトリアゾ−ル、2−(2'−ヒドロキシ−3',5'−ジ−t−ブチルフェニル)−ベンゾトリアゾ−ル、2−(2'−ヒドロキシ−5'−t−ブチルフェニル)−ベンゾトリアゾ−ル、2−(2'−ヒドロキシ−5'−t−オクチルフェニル)−ベンゾトリアゾ−ル等のベンゾトリアゾール系紫外線吸収剤;2−エトキシ−2′−エチルオキザリックアシッドビスアニリド、2−エトキシ−5−t−ブチル−2′−エチルオキザリックアシッドビスアニリド等のオキザリックアニリド系紫外線吸収剤;
【0010】
ビス(2,2,6,6−テトラメチル−4−ピペリジル)セバケート、ビス(1,2,2,6,6−ペンタメチル−4−ピペリジル)セバケート、コハク酸ジメチル−1−(2−ヒドロキシエチル)−4−ヒドロキシ−2,2,6,6−テトラメチルピペリジン重縮合物等のヒンダードアミン系紫外線吸収剤;2,4−ジヒドロキシベンゾフェノン、2−ヒドロキシ−4−メトキシベンゾフェノン、2−ヒドロキシ−4−メトキシベンゾフェノン−5−サルフォニックアシッド、2−ヒドロキシ−4−オクトキシベンゾフェノン、2−ヒドロキシ−4−n−ドデシルオキシベンゾフェノン等のベンゾフェノン系紫外線吸収剤;フェニルサリシレート、4−t−ブチルフェニルサリシレート等のサリチル酸系紫外線吸収剤の他、エチル−2−シアノ−3,3−ジフェニルアクリレート、ρ−メトキシ桂皮酸イソオクチル等が挙げられる。紫外線吸収剤は、単独で又は併用して使用できる。特に、ベンゾトリアゾール系紫外線吸収剤の使用は着色など外観変化も少なく少量で効果あるので好ましい。
【0011】
本発明において、紫外線吸収剤は、重量濃度で1〜2000ppmの範囲で含有されることが好ましい。2000ppmを超えると紫外線吸収剤自体により着色しあるいは臭気の発生を生じやすくなる。ベンゾトリアゾール系紫外線吸収剤の含有量は、1〜1500ppmが好ましい。
本発明の水添ポリブテンは、酸化防止剤1〜1000ppm及び紫外線吸収剤1〜2000ppmの範囲で含有することが好ましいが、さらに、酸化防防止剤/紫外線吸収剤比が濃度比で1以下であることが好ましい。
【0012】
また、化粧料等の用途では、無機材による吸着、水洗浄、水蒸気蒸留処理など臭気改善効果のある方法により精製した水添ポリブテンに、酸化防止剤、紫外線吸収剤を添加し、これを原料とし配合すると、化粧料等における長期安定性効果が顕著となる。本発明のポリブテン組成物を配合した化粧料としては、クリーム、乳液、髪油、シャンプー、化粧水、ファンデーション、口紅、化粧用油等が挙げられる。
【0013】
【発明の効果】
本発明の酸化防止剤、紫外線吸収剤を含む水添ポリブテン組成物は、安定性に優れており、通常の使用に際して臭気変化が極めて小さく、長期にわたって安定であることから化粧料、トイレタリー、殺虫剤、洗浄剤などの用途に使用できる。
【0014】
【実施例】
以下、本発明を実施例及び比較例により詳細に説明する。
実施例1
水添ポリブテン(動粘度2.8cSt/40℃、ヨウ素価0.1)100gに、表1の濃度となるようにTBPHP(トリス(2,4−ジt−ブチルフェニル)フォスファイト)、HTOPHB(2−(2'−ヒドロキシ−5'−t−オクチルフェニル)−ベンゾトリアゾ−ル)を添加し、撹拌してこれに溶解した。200mlスクリュー管に、作製した水添ポリブテン100mlを入れ、屋外に放置して作製直後、15日後、30日後の外観及び臭気を評価した。結果を表1に示す。
【0015】
実施例2〜4、参考例1、2及び比較例1〜6
実施例1と同様な方法で実施例2〜4、参考例1、2及び比較例1〜6を行った。比較例6は添加剤無添加の例である。結果を表1に示す。
【0016】
【表1】

Figure 0004096586
【0017】
表1中の略語の意味を以下に示す。
PB(1):水添ポリブテン(動粘度2.8cSt/40℃、ヨウ素価0.1)、
PB(2):水添ポリブテン(動粘度22.8cSt/40℃、ヨウ素価0.1)、
PB(3):水添ポリブテン(動粘度9000cSt/40℃、ヨウ素価0.3)、
TBPHP:トリス(2,4ジt−ブチルフェニル)フォスファイト、
BOSBATA:2,4−ビス(n−オクチルチオ)−6−(4−ヒドロキシ−3,5−ジ−t−ブチルアニリノ)1,3,5−トリアジン、
BHT:2,6−ジt−ブチル−p−クレゾール、
ビタミンE(トコフェロール):商品名;イーミックス−70L、エーザイ株式会社製、
HTOPHB:2−(2'−ヒドロキシ−5'−t−オクチルフェニル)−ベンゾトリアゾ−ル、
HMPHB:2−(2'−ヒドロキシ−5'−メチルフェニル)−ベンゾトリアゾ−ル、
HMEBP:2−ヒドロキシ−4−メトキシベンゾフェノン、
TBPS:4−t−ブチルフェニルサリシレート。
(評価の基準)
着色試験;◎:無色透明、○:ほぼ無色、△:僅かな着色、×:着色
臭気試験;◎:ほぼ無臭、○:微 臭、△:弱い臭気、×:強い臭気
【0018】
実施例1〜4、参考例1、2及び比較例1〜6の対比より、本発明の酸化防止剤及び紫外線吸収剤を含有する水添ポリブテン組成物は、臭気及び外観の経日変化が小さいことがわかる。実施例2と参考例2の対比より、ベンゾトリアゾール系紫外線吸収剤を含有する水添ポリブテン組成物は、より安定であることがわかる。
【0019】
実施例7
市販の救急絆創膏から殺菌ガーゼを取り除き、新たに1.5cm×2.0cmのガーゼを取り付け皮膚刺激性テスト用の絆創膏を準備した。このガーゼ部に30日経過後の実施例2又は比較例6の水添ポリブテン組成物を3滴滴下して、これを3名の男性の左右上腕内側にそれぞれ貼り付けた。この結果、比較例6の水添ポリブテン組成物の場合は3名ともテスト1日経過後で痒みを生じ皮膚に赤味をおびたのに対し、実施例2の水添ポリブテン組成物では3名ともに2日後も異常は見られなかった。本発明の水添ポリブテン組成物は安定であり、また皮膚刺激性が少ないことがわかる。[0001]
[Field of the Invention]
The present invention relates to a hydrogenated polybutene composition that can be used in cosmetics, toiletries, insecticides, and cleaning agents and that has a very small change in odor over time.
[0002]
[Prior art]
Low-viscosity polybutenes are used in diluting solvents, fragrances, metal detergents, and the like, and medium- and high-viscosity polybutenes are widely used in applications such as lubricating oils, adhesives, plasticizers, and processing oils. From the viewpoint of the stability of polybutene, hydrogenated polybutene prepared by adding hydrogen to the polybutene is used. However, hydrogenated polybutene is easily oxidized and easily changes over time. Odor change and coloration occur after long-term storage or long-term use, and there has been a problem in use in applications such as cosmetics that require stability and dislike odor.
[0003]
In order to solve these problems, the hydrogenation process has been improved for the purpose of product stability, and methods such as adsorption treatment with inorganic materials, water washing, and steam distillation have been used to reduce odor. Has been made. However, these methods are effective in reducing the initial odor, but have not yet sufficiently prevented the odor change over time. In addition, the petroleum product additive 2nd edition (edited by Toshio Sakurai, Kobo Shobo Publishing Co., Ltd., 1974) describes that an antioxidant is added to improve stability, but the antioxidant alone In the case of adding, sufficient effect is not recognized.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a stable hydrogenated polybutene composition that can be used in cosmetics, toiletries, insecticides, cleaning agents, and the like.
[0005]
[Means for Solving the Problems]
The present invention will be described below.
(1) Tocopherol, phenol-based antioxidant, sulfur-based antioxidant and phosphorus-based antioxidant at least one selected from 20 to 500 ppm of antioxidant, benzotriazole-based UV absorber, benzophenone-based UV A hydrogenated polybutene composition containing 100 to 800 ppm of an ultraviolet absorber selected from an absorber and a salicylic acid-based ultraviolet absorber, and having an antioxidant / ultraviolet absorber ratio of 1 or less in terms of concentration ratio .
(2) A cosmetic comprising the hydrogenated polybutene composition of (1) as a raw material.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the hydrogenated polybutene is an isobutylene homopolymer, a copolymer of isobutylene and its isomer, or another olefin, which is a hydrocarbon compound hydrogenated to these. As a method for producing hydrogenated polybutene, for example, a gas mixture comprising isobutylene alone, isobutylene and its isomer, or another olefin is polymerized using an acid catalyst such as aluminum chloride, and then the polymer is hydrogenated. A manufacturing method is mentioned. In this case, a high-viscosity polybutene can be produced from a low-viscosity light polybutene by adjusting the amount of aluminum chloride added or the reaction temperature. Examples of other olefins include butene-1, cis-2-butene, and trans-2-butene. The degree of hydrogenation of the hydrogenated polybutene is evaluated by the iodine value. In the present invention, the iodination is preferably 1.5 or less for cosmetic use.
[0007]
The hydrogenated polybutene composition containing the antioxidant and ultraviolet absorber of the present invention can be produced by adding an antioxidant and an ultraviolet absorber to the hydrogenated polybutene. Examples of the antioxidant used in the present invention include phenol-based, phosphorus-based, sulfur-based, amine-based and organometallic antioxidants; natural antioxidants and the like. Specifically, for example, 2,6-di-t-butyl-p-cresol, 2,6-di-t-butyl-phenol, 2,4-dimethyl-6-t-butylphenol, butylhydroxyanisole, 2,2 ′ -Methylenebis (4-methyl-6-tert-butylphenol), 4,4'butylidenebis (3-methyl-6-tert-butylphenol), tetrakis [methylene-3 (3,5-ditert-butyl-4-hydroxyphenyl) ) Propionate] phenolic antioxidants such as methane, 1,1,3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane; dilauryl thiodipropionate, distearyl thiodipropionate , Lauryl stearyl thiodipropionate, distearyl β, β'-thiodibutyrate, 2-mercaptobenzoimidazo , Dilauryl sulfide, 2,4-bis (n-octylthio) -6- (4-hydroxy-3,5-di-t-butylanilino) 1,3,5-triazine, 2,2-thiodiethylenebis [ Sulfur antioxidants such as 3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate]; triphenyl phosphite, trioctadecyl phosphite, tridecyl phosphite, trilauryl trithiophosphite, 3 , 5-Di-t-butyl-4-hydroxybenzyl phosphonate-diethyl ester, tetrakis (2,4-di-t-butylphenyl) -4,4'-biphenylene phosphite, tris (2,4-di Phosphorous antioxidants such as -t-butylphenyl) phosphite; phenyl-β-naphthylamine, α-naphthyla N, N'-di-t-butyl-p-phenylenediamine, N, N'-diphenyl-p-phenylenediamine, N, N'-hexamethylenebis (3,5-di-t-butyl-4 Amine-based antioxidants such as -hydroxy-hydroxynamamide); natural antioxidants such as tocopherol, lecithin and guaiac fat, as well as propyl gallate and erythorbic acid. Antioxidants can be used alone or in combination. In particular, the use of tocopherol, a phenolic antioxidant, a sulfurous antioxidant, or a phosphorus antioxidant is preferable because it is effective even in a small amount.
[0008]
In the present invention, the content of the antioxidant is preferably in the range of 1 to 1000 ppm by weight concentration. When the content exceeds 1000 ppm, coloring and odor are likely to occur due to the antioxidant itself. When the tocopherol, phenol-based antioxidant, sulfur-based antioxidant, or phosphorus-based antioxidant is contained, the weight concentration is preferably in the range of 1 to 500 ppm.
[0009]
Examples of the ultraviolet absorber used in the present invention include benzotriazole-based, oxalic anilide-based, hindered amine-based, benzophenone-based, and salicylic acid-based ultraviolet absorbers. Specifically, for example, 2- (2′-hydroxy-5′-methylphenyl) -benzotriazole, 2- (2′-hydroxy-3 ′, 5′-di-t-butylphenyl) -5-chlorobenzo Triazol, 2- (2′-hydroxy-3′-t-butyl-5′-methylphenyl) -5-chlorobenzotriazole, 2- (2′-hydroxy-3 ′, 5′- Di-t-amylphenyl) -benzotriazole, 2- (2′-hydroxy-3 ′, 5′-di-t-butylphenyl) -benzotriazole, 2- (2′-hydroxy-5′-t) -Butylphenyl) -benzotriazole, benzotriazole ultraviolet absorbers such as 2- (2'-hydroxy-5'-t-octylphenyl) -benzotriazole; 2-ethoxy-2'-ethyloxalic acid Bisanilide, 2-ethoxy Oki The Rick anilide based ultraviolet absorbers such as 5-t-butyl-2'-ethyl acid bisanilide;
[0010]
Bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, dimethyl-1- (2-hydroxyethyl succinate) ) Hindered amine ultraviolet absorbers such as 4-hydroxy-2,2,6,6-tetramethylpiperidine polycondensate; 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4- Benzophenone UV absorbers such as methoxybenzophenone-5-sulfonic acid, 2-hydroxy-4-octoxybenzophenone, 2-hydroxy-4-n-dodecyloxybenzophenone; phenyl salicylate, 4-t-butylphenyl salicylate, etc. In addition to salicylic acid UV absorbers, ethyl-2-silane Roh-3,3, .rho. isooctyl and the like methoxycinnamate. Ultraviolet absorbers can be used alone or in combination. In particular, the use of a benzotriazole-based ultraviolet absorber is preferable because it has little change in appearance such as coloring and is effective in a small amount.
[0011]
In the present invention, the ultraviolet absorber is preferably contained in a range of 1 to 2000 ppm by weight concentration. When it exceeds 2000 ppm, the ultraviolet absorber itself is colored or odor is likely to be generated. The content of the benzotriazole ultraviolet absorber is preferably 1 to 1500 ppm.
The hydrogenated polybutene of the present invention is preferably contained in the range of 1 to 1000 ppm of the antioxidant and 1 to 2000 ppm of the ultraviolet absorber, and further, the antioxidant / ultraviolet absorber ratio is 1 or less in concentration ratio. It is preferable.
[0012]
For cosmetics and other applications, antioxidants and ultraviolet absorbers are added to hydrogenated polybutene purified by methods that have an odor-improving effect, such as adsorption with inorganic materials, water washing, and steam distillation treatment. When blended, the long-term stability effect in cosmetics and the like becomes significant. Examples of cosmetics containing the polybutene composition of the present invention include creams, emulsions, hair oils, shampoos, lotions, foundations, lipsticks, cosmetic oils and the like.
[0013]
【The invention's effect】
The hydrogenated polybutene composition containing the antioxidant and the ultraviolet absorber of the present invention is excellent in stability, has a very small odor change during normal use, and is stable over a long period of time. It can be used for applications such as cleaning agents.
[0014]
【Example】
Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples.
Example 1
To 100 g of hydrogenated polybutene (kinematic viscosity 2.8 cSt / 40 ° C., iodine value 0.1), TBPHP (tris (2,4-di-t-butylphenyl) phosphite), HTOPPHB ( 2- (2′-hydroxy-5′-t-octylphenyl) -benzotriazole) was added and stirred to dissolve it. 100 ml of the produced hydrogenated polybutene was placed in a 200 ml screw tube and left outside to evaluate the appearance and odor immediately after production, 15 days later, and 30 days later. The results are shown in Table 1.
[0015]
Examples 2 to 4, Reference Examples 1 and 2, and Comparative Examples 1 to 6
Examples 2 to 4, Reference Examples 1 and 2 and Comparative Examples 1 to 6 were performed in the same manner as in Example 1. Comparative Example 6 is an example with no additive added. The results are shown in Table 1.
[0016]
[Table 1]
Figure 0004096586
[0017]
The meanings of the abbreviations in Table 1 are shown below.
PB (1): hydrogenated polybutene (kinematic viscosity 2.8 cSt / 40 ° C., iodine value 0.1),
PB (2): hydrogenated polybutene (kinematic viscosity 22.8 cSt / 40 ° C., iodine value 0.1),
PB (3): hydrogenated polybutene (kinematic viscosity 9000 cSt / 40 ° C., iodine value 0.3),
TBPHP: Tris (2,4 di-t-butylphenyl) phosphite,
BOSBATA: 2,4-bis (n-octylthio) -6- (4-hydroxy-3,5-di-t-butylanilino) 1,3,5-triazine,
BHT: 2,6-di-t-butyl-p-cresol,
Vitamin E (tocopherol): trade name; Emix-70L, manufactured by Eisai Co., Ltd.
HTOPHB: 2- (2′-hydroxy-5′-t-octylphenyl) -benzotriazole
HMPHB: 2- (2′-hydroxy-5′-methylphenyl) -benzotriazole,
HMEBP: 2-hydroxy-4-methoxybenzophenone,
TBPS: 4-t-butylphenyl salicylate.
(Evaluation criteria)
Coloring test: ◎: colorless and transparent, ○: almost colorless, △: slight coloring, ×: colored odor test; ◎: almost odorless, ○: slight odor, Δ: weak odor, ×: strong odor
From the comparison of Examples 1 to 4, Reference Examples 1 and 2, and Comparative Examples 1 to 6, the hydrogenated polybutene composition containing the antioxidant and the ultraviolet absorber of the present invention has little odor and change in appearance over time. I understand that. From the comparison between Example 2 and Reference Example 2 , it can be seen that the hydrogenated polybutene composition containing a benzotriazole-based ultraviolet absorber is more stable.
[0019]
Example 7
The sterilized gauze was removed from the commercially available emergency bandage, and a 1.5 cm × 2.0 cm gauze was newly attached to prepare a bandage for skin irritation test. Three drops of the hydrogenated polybutene composition of Example 2 or Comparative Example 6 after 30 days were dropped onto this gauze portion, and this was attached to the inner sides of the left and right upper arms of three men. As a result, in the case of the hydrogenated polybutene composition of Comparative Example 6, all three persons were itchy after 1 day of the test, and the skin was reddish, whereas in the hydrogenated polybutene composition of Example 2, all three persons No abnormality was observed after 2 days. It can be seen that the hydrogenated polybutene composition of the present invention is stable and has little skin irritation.

Claims (2)

トコフェロール、フェノール系酸化防止剤、硫黄系酸化防止剤及びりん系酸化防止剤の中から選ばれる少なくとも1種以上である酸化防止剤20〜500ppm及びベンゾトリアゾール系紫外線吸収剤、ベンゾフェノン系紫外線吸収剤、サリチル酸系紫外線吸収剤から選択される紫外線吸収剤100〜800ppmを含有し、酸化防止剤/紫外線吸収剤比が濃度比で1以下である水添ポリブテン組成物。20 to 500 ppm of an antioxidant that is at least one selected from tocopherols, phenol-based antioxidants, sulfur-based antioxidants and phosphorus-based antioxidants, benzotriazole-based ultraviolet absorbers, benzophenone-based ultraviolet absorbers, A hydrogenated polybutene composition comprising 100 to 800 ppm of an ultraviolet absorber selected from salicylic acid-based ultraviolet absorbers and having an antioxidant / ultraviolet absorber ratio of 1 or less in terms of concentration ratio . 請求項1に記載の水添ポリブテン組成物を原料として配合してなる化粧料。A cosmetic comprising the hydrogenated polybutene composition according to claim 1 as a raw material.
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