Birefringent liquid crystal composition comprising alkylsulfanylaryl isothiocyanato tolane compounds
申请人:Essilor International
公开号:US11279878B2
公开(公告)日:2022-03-22
The present invention relates to an optical article comprising a birefringent liquid crystal composition, said composition comprising more than 30% by weight based on the total weight of the composition of tolane compounds of formula R—S—Z1-A-Z2—NCS, in which R is a substituted or unsubstituted, linear or branched alkyl group, Z1 and Z2 are aryl groups, and A is an ethynyl group, an arylethynyl group or an ethynylarylethynyl group.
本发明涉及一种包含双折射液晶组合物的光学制品,所述组合物包含按重量计占组合物总重量 30% 以上的式 R-S-Z1-A-Z2-NCS 的甲苯化合物,其中 R 是取代或未取代的直链或支链烷基,Z1 和 Z2 是芳基,A 是乙炔基、芳基乙炔基或乙炔芳基乙炔基。