Title:
光硬化性組成物
Document Type and Number:
Japanese Patent JP2006522839
Kind Code:
A
Abstract:
Benzophenone derivatives of formula I R1, R2 and R3 are each independently of the others hydrogen or C1-C4alkyl, cyclopentyl or cyclohexyl; R4, R5 and R6 are each independently of the others hydrogen, C1-C4alkyl, cyclopentyl or cyclohexyl; R7 and R8 are each independently of the other hydrogen, C1-C4alkyl, cyclopentyl or cyclohexyl; with the provisos that (i) at least one radical R1, R2, R3, R4, R5, R6, R7, R8 is other than hydrogen; (ii) when all radicals R4, R5 , R6, R7 and R8 are hydrogen and only one radical R1, R2, R3 is C1-C4alkyl, that radical must be in the meta-position of the phenyl ring; and (iii) when all radicals R1, R2, R3, R7 and R8 are hydrogen and two of the radicals R4, R5 and R6 are hydrogen and the remaining radical R4, R5 or R6 is C1-C4alkyl, 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.
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Inventors:
Fuchs, andre
Hughler, Rinaldo
Bole, Thomas
Hughler, Rinaldo
Bole, Thomas
Application Number:
JP2006502015A
Publication Date:
October 05, 2006
Filing Date:
February 09, 2004
Export Citation:
Assignee:
Ciba Specialty Chemicals Holding Inc.
International Classes:
C08F2/50; C08K5/07; C09D4/00; C09D5/00; C09D11/00; C09J4/00; C09J11/06; C09K3/10; G03F7/031
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Fumio Shinoda