申请人:——
公开号:US20010023268A1
公开(公告)日:2001-09-20
Benzotriazole UV absorbers substituted with an ultra long ester or amide moiety wherein the ester or amide group is a hydrocarbyl group of 25 to 100 carbon atoms or is a group of alkyl of 25 to 100 carbon atoms interrupted by 5 to 39 oxygen atoms and terminated with an omega—OH or an omega—OR group exhibit excellent stabilization efficacy while they concomitantly do not bloom when incorporated into polyolefin films. These benzotriazole UV absorbers also provide excellent protection to white, dyed, dipped, unscented and/or scented candle wax from discoloration and degradation.
苯并三唑UV吸收剂的取代基为超长酯或酰胺基团,其中酯或酰胺基团是由25至100个碳原子的烃基组成,或是由25至100个碳原子的烷基组成,中间由5至39个氧原子相间,并以ω—OH或ω—OR基团为末端。这些吸收剂展现出卓越的稳定性效果,同时在聚烯烃薄膜中不会出现开花现象。这些苯并三唑UV吸收剂还能为白色、染色、浸渍、无香味和/或有香味的蜡烛提供卓越的保护,防止其变色和降解。