COLOUR CHANGE COMPOSITION AND COMPOUNDS
    21.
    发明申请

    公开(公告)号:WO2021019074A1

    公开(公告)日:2021-02-04

    申请号:PCT/EP2020/071663

    申请日:2020-07-31

    摘要: The invention provides a colour change composition containing an electron donating organic colouring compound, an electron accepting compound and a compound of formula (I): wherein E is an ester linkage O-CO or -CO2, R is independently selected from an optionally substituted linear or branched alkyl group, alkenyl cycloalkyl group, alkenyl group, alkoxy group, aryl and alkylene aryl group having from 6 to 22 carbon atoms; Y 1 Y 2 X 1 and X2 are independently selected from hydrogen, R', -OR' and halogen; wherein R' is independently selected from an optionally substituted linear or branched alkyl group, alkenyl group, alkoxy group, aryl group and an alkylene aryl group; having from 5 to 22 carbon atoms; r and p each represent and integer from 0 to 3. The compound of formula (I) and compositions of the invention are useful in providing a colour change effect, in memory compositions and visual indicators, particularly in security and healthcare applications.

    含有8-(双苯乙炔基)-酯基柔性多元环的氟硼吡咯类液晶化合物,其制备方法及其应用

    公开(公告)号:WO2020143842A1

    公开(公告)日:2020-07-16

    申请号:PCT/CN2020/073718

    申请日:2020-01-22

    发明人: 李晓莲 潘柔辰

    摘要: 本发明公开了一类含有8-(双苯乙炔基)-酯基柔性多元环的氟硼吡咯类液晶染料,其制备方法及应用。本发明以氟化硼络合二吡咯甲川为母体,通过Sonogashira偶联反应在8号位引入双苯乙炔刚性结构,将双环己烷、胆甾醇等柔性多元环利用酯化反应与双苯乙炔基连接,设计合成了一系列8-(双苯乙炔基)-酯基柔性多元环的BODIPY类二向色性染料。本发明化合物在二氯甲烷中最大发射波长均集中在525nm左右,呈现绿色荧光,在液晶E7中表现出良好的二向色比及有序参数;本发明的液晶化合物在100-280℃范围内存在液晶中间相,可用于制造液晶显示产品,尤其是作为宾体染料用于宾主模式液晶显示器;本发明化合物添加至E7液晶并用于宾主显示模式时可提高响应时间,达到快速响应的效果。

    INDOLENAPHTHOPYRANS AND PHOTOCHROMIC COMPOSITIONS COMPRISING THEM

    公开(公告)号:WO2020126030A1

    公开(公告)日:2020-06-25

    申请号:PCT/EP2018/086583

    申请日:2018-12-21

    摘要: Provided is a photochromic indolenaphthopyran having the core skeletal structure of Formula (I): wherein R 1 and R 2 are each independently substituted or unsubstituted alkyloxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, substituted or unsubstituted arylthio, substituted or unsubstituted ether, substituted or unsubstituted thioether, amino, a nitrogen-containing heterocycle, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, -NHC(O)R a , or –OC(O)R a , wherein R a is substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted alkoxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, or substituted or unsubstituted arylthio; R 4 is selected from hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted heterocycloalkyl, allyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl; and B and B' are each independently substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, wherein each substituted aryl or substituted heteroaryl is substituted with a group having a Hammett σ p value of greater than -0.50.

    EXTRUDED PET FILMS WITH PHOTOSTABLE DYES FOR COLOR CONVERSION

    公开(公告)号:WO2019243288A1

    公开(公告)日:2019-12-26

    申请号:PCT/EP2019/065941

    申请日:2019-06-18

    申请人: BASF SE

    摘要: The present invention relates to a color converter comprising (a)a polyethylene terephthalate matrix material;and (b)at least one organic fluorescent dye selected from a compound of formulae (I.a), (I.b), (I.c) or mixtures thereof wherein EWG1 and EWG2, are CN, CH(O), C(O)R 13 , OC(O)R 13 , COOR 14 , CH(COOR 14 ) 2 , SO 2 R 14 , C(O)NR 15 R 16 , SO 2 NR 15 R 16 or C 1 -C 20 -fluoroalkyl; R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7a , R 7b , R 7c , R 13 , R 14 , R 15 and R 16 are as defined in the claims and in the description. The invention also relates to a backlight unit, a liquid crystal display module and a light emitting device comprising this color converter. The invention also relates to novel compounds of formula (l.b), wherein EWG1 = EWG2 = CN.

    PHOTOSTABLE CYANO-SUBSTITUTED BORON-DIPYRROMETHENE DYE AS GREEN EMITTER FOR DISPLAY AND ILLUMINATION APPLICATIONS

    公开(公告)号:WO2019243286A1

    公开(公告)日:2019-12-26

    申请号:PCT/EP2019/065939

    申请日:2019-06-18

    申请人: BASF SE

    摘要: The present invention relates to a color converter comprising a polymeric matrix mate- rial and at least one organic fluorescent colorant selected from a compound of formulae l.a, l.b, l.c or mixtures thereof R 1 , R 2 , R 3 , R 5 , R 6 , R 7 are hydrogen, C 1 -C 20 -alkyl or C 6 -C 14 -aryl-C 1 -C 10 -alkylene, wherein the aryl moiety is unsubstituted or substituted by k substituents R 9 ; R 4a , R 4b are fluorine, chlorine, cyano or OR 10 , R 8a , R 8b are C 1 -C 20 -alkyl; R 8C is C 1 -C 20 -alkyl, C 6 -C 10 -aryl or C 6 -C 10 -aryl-C 1 -C 10 -alkylene, wherein the aryl moieties in two aforementioned radicals are unsubstituted or substituted by k substituents R 9 ; k, R 9 and R 10 are as defined in the claims and in the description. The invention also describes the use of color converters; a backlight unit for liquid crystal displays; a liquid crystal display device and a self-emissive display device comprising this color converter and an ink formulation comprising a compound of formulae l.a, l.b or l.c and the use thereof.

    一种pH平板光极荧光传感膜、制备方法及应用

    公开(公告)号:WO2019242221A1

    公开(公告)日:2019-12-26

    申请号:PCT/CN2018/116081

    申请日:2018-11-19

    申请人: 南京大学

    IPC分类号: G01N21/64 C09B57/00

    摘要: 一种监测二维pH值的荧光染料HPTS-lipo、荧光传感膜及应用,属于监测二维pH值领域。监测二维pH的荧光传感膜由荧光染料HPTS-lipo制备,制备过程中将HPTS-lipo采用水凝胶包埋。荧光染料HPTS-lipo通过在荧光染料HPTS的磺酸基团接入烷基胺制备。基于改性后的荧光染料HPTS-lipo与荧光染料HPTS相比其pKa值得到显著的变化,因此荧光传感膜适用于不同的pH值监测,满足不同实验需求,且荧光染料HPTS-lipo具有更好的疏水性,能在环境中保存更久时间,采用水凝胶包埋后进一步克服了染料泄露的问题。