[EN] BIMOLECULAR PHOTOINITIATOR SYSTEMS<br/>[FR] SYSTEMES PHOTO-INITIATEURS BIMOLECULAIRES
申请人:CIBA SC HOLDING AG
公开号:WO2004104051A1
公开(公告)日:2004-12-02
Photoinititator systems comprising (b1) at least one aromatic aldehyde; (b2) at least one tertiary amine compound and/or a quaternary ammonium salt of a tertiary amine compound; and (b3) optionally a sensitizer compound are suitable for the photo polymerization of ethylenically unsaturated monomeric or oligomeric polymerizable compounds; wherein the aromatic aldehyde is a compound of formula I (1), wherein R1 and R2 independently of each other are hydrogen, C1-C4alkyl, formyl, or OR6; R3, R4 and R5 for example are hydrogen, C1-Cl2alkyl, C3-C8cycloalkyl, halogen, C1-C8alkanoyl, OR6, NR7R8, SR9, SOR9, SO2R9; benzoyl; phenyl which optionally is substituted; or R1 and R3 together, or R3 and R5 together for example form a group b, g, h, k or p which is optionally substituted; provided that at least one of the residues R3, R4 and R5 is SR9, or that R1 and R3 together, or R3 and R5 together form a group a, b, c, d, e, f, g, h, j, k, m, n or o; R6 for example is hydrogen, C1-C18alkyl or phenyl; R7 and R8 for examples are hydrogen or C1-C12alkyl; R9 is for example hydrogen, C1-C24alkyl, phenyl which is optionally substituted; and R10 is for example hydrogen, C1-C12alkyl or phenyl.