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    • 2. 发明申请
    • PHOTOCURABLE COMPOSITIONS
    • 可光成分
    • WO2004074328A1
    • 2004-09-02
    • PCT/EP2004/050103
    • 2004-02-09
    • CIBA SPECIALTY CHEMICALS HOLDING INC.FUCHS, AndréHÜSLER, RinaldoBOLLE, Thomas
    • FUCHS, AndréHÜSLER, RinaldoBOLLE, Thomas
    • C08F2/50
    • C08F2/50C08K5/07G03F7/031
    • Benzophenone derivatives of formula (I) wherein R1, R2 and R3 are each independently of the others hydrogen or C 1 -C 4 alkyl, cyclopentyl or cyclohexyl; R 4 , R5 and R 6 are each independently of the others hydrogen, C 1 -C 4 alkyl, cyclopentyl or cyclohexyl; R 7 and R 8 are each independently of the other hydrogen, C 1 -C 4 alkyl, cyclopentyl or cyclohexyl with the provisos that (i) at least one radical R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 is other than hydrogen; (ii) when all radicals R 4 , R 5 , R 6 , R 7 and R 8 are hydrogen and only one radical R 1 , R 2 , R 3 is C 1 -C 4 alkyl, that radical must be in the meta-position of the phenyl ring; and (iii) when all radicals R 1 , R 2 , R 3 , R 7 and R 8 are hydrogen and two of the radicals R 4 , R 5 and R 6 , are hydrogen and the remaining radical R 4 , R 5 or R 6 is C 1 -C 4 alkyl, that alkyl radical is not bonded in the para-position on the phenyl ring; are found to be especially suitable in photocurable compositions in respect of solubility, reactivity and a low level of yellowing.
    • 式(I)的二苯甲酮衍生物其中R 1,R 2和R 3各自独立地为氢或C 1 -C 4烷基,环戊基或环己基; R4,R5和R6各自独立地为氢,C1-C4烷基,环戊基或环己基; R7和R8各自独立地为另一个氢,C 1 -C 4烷基,环戊基或环己基,条件是(i)至少一个基团R 1,R 2,R 3,R 4,R 5,R 6,R 7,R 8不是氢; (ii)当所有基团R 4,R 5,R 6,R 7和R 8为氢且仅一个基团R 1,R 2,R 3为C 1 -C 4烷基时,该基团必须在苯环的间位; 和(iii)当所有基团R 1,R 2,R 3,R 7和R 8为氢且基团R 4,R 5和R 6中的两个为氢时,其余基团R 4,R 5或R 6为C 1 -C 4烷基时,该烷基不为 在苯环的对位上键合; 在溶解性,反应性和黄化程度方面都被认为特别适用于光固化组合物。