TIME TEMPERATURE INDICATOR BASED ON THIOALKYL AND THIOARYL SUBSTITUTED SPIROAROMATICS
申请人:Salman Husein
公开号:US20110287549A1
公开(公告)日:2011-11-24
The present invention relates to photochromic spiropyrans as active ingredients of Time-Temperature Indicators (TTIs), and to new spiropyrans per se. More particularly, the invention provides TTIs on the base of photochromic spiropyrans comprising alkylsulfanyl/arylsulfanyl substituents in the phenyl ring of the benzopyrane moiety.
本发明涉及光致变色的螺环吡喃作为时间温度指示器(TTIs)的活性成分,以及新的螺环吡喃本身。更具体地,本发明提供了基于含有烷基硫醚/芳基硫醚取代基的光致变色螺环吡喃的TTIs。