申请人:Chang Chia-Hu
公开号:US20100086500A1
公开(公告)日:2010-04-08
The invention relates to ultraviolet light absorbing compounds, their preparation and uses as protective agents and stabilizers in coatings, plastics and topically applied products. The compounds are ketone derivatives of 2-(2-hydroxyphenol) benzotriazole of formula I,
where R
1
is hydrogen atom, or a halogen atom, or a straight-chain or branched lower alkyl or lower alkoxy of 1 to 4 carbon atoms; R
2
is an unsubtituted or substituted aryl group or an unsubstituted or substituted straight-chain or branched alkyl having 1 to 18 carbon atoms or a cycloaliphatic group having 5 to 6 carbon atoms; and R
3
is a straight-chain or branched alkyl or alkylaryl group or alkoxyl or phenyl or phenyl substituted with alkyl, cycloalkyl, carboalkoxy, chlorine or arylalkyl groups.
本发明涉及紫外线吸收化合物,它们的制备以及在涂料、塑料和局部应用产品中作为保护剂和稳定剂的用途。该化合物是式I中的2-(2-羟基苯基)苯并三唑的酮衍生物,其中R1是氢原子、卤素原子、1至4个碳原子的直链或支链低级烷基或低级烷氧基;R2是未取代或取代的芳基基团或未取代或取代的1至18个碳原子的直链或支链烷基或5至6个碳原子的环烷基团;R3是直链或支链烷基或烷基芳基基团或烷氧基或苯基或被烷基、环烷基、羧基烷氧基、氯或芳基烷基基团取代的苯基。