オクタベンゾン 化学特性,用途語,生産方法
外観
わずかにうすい黄色〜黄色, 結晶〜結晶性粉末
定義
本品は、次の化学式で表されるベンゾフェノン誘導体である。
溶解性
エタノール及びアセトンに溶け、水に溶けない。
用途
プラスチックス、ペイントなどの退色劣化防止用、紫外線吸収剤として利用される。
化粧品の成分用途
褪色防止剤
効能
紫外線保護剤
主な用途／役割
ヒドロキシベンゾフェノン系紫外線吸収剤、ポリプロピレンに使用される。
説明
Octabenzone appears as light yellow/yellowish crystals/fine powder and is odourless
and freely soluble in benzene, n-hexane, and acetone; slightly soluble in ethanol; and
very slightly soluble in ethane dichloride. Octabenzone is a light stabiliser with good
performance, capable of absorbing the UV radiation of 240–340 nm wavelength with the
characteristics of light colour, non-toxicity, good compatibility, small mobility, easy processing,
etc. Octabenzone protects the polymer to its maximum extent and helps to reduce
its colour. It can also delay the yellowing and impede the loss of its physical function.
Industrial applications of octabenzone is very extensive and applied to PE, PVC, PP, PS,
PC, organic glass, polypropylene fibre, ethylene-vinyl acetate, etc. Also, octabenzone has
very good light-stability effect on drying phenol aldehyde, varnish of alcohol and acname,
polyurethane, acrylate, expoxnamee, etc. The major uses include UV stabiliser, for example,
polyethylene and polypropylene fibres.
化学的特性
Light yellow powder
使用
To stabilize polyethylene against deterioration by ultraviolet light.
製造方法
Preparation by reaction of n-octyl chloride with 2,4-di-hydroxybenzophenone,
in the presence of a mixture of sodium carbonate, triethylamine and potassium iodide in refluxing butanol for 15 h (90%);
in the presence of potassium carbonate in cyclohexanone at 145° for 5 h (66%);
in the presence of potassium hydroxide and antimony triiodide in diethylene glycol at 150° for 1 h (93%);
in the presence of sodium bicarbonate and potassium iodide in 1-methylpyrrolidone for 2 h at 150° (96%).
一般的な説明
2-Hydroxy-4-(octyloxy)benzophenone (HOBP) is a UV based absorber that has 2-hydroxybenzophenone as a functional group. It can be used to enhance the light fastness of polymers using UV absorbers with sulfur and phosphorus compounds.
オクタベンゾン 上流と下流の製品情報
原材料
準備製品