Patent EP-2450893-A1 (EP)
Inventor: BERNETH HORST DR
IPC: C09B69/06
Filed: 2010-11-08
Abstract: Photopolymer formulation comprises a polyol component, a polyisocyanate component, a writing monomer and a photoinitiator comprising a co-initiator and a dye (I), where (I) exhibits a water absorption of = 5%. Photopolymer formulation comprises a polyol component, a polyisocyanate component, a writing monomer and a photoinitiator comprising a co-initiator and a dye of formula (F1 +>An ->) (I), where (I) exhibits a water absorption of = 5%. F1 : a cationic dye, preferably acridine, xanthene, thioxanthene, phenazine, phenoxazine, phenothiazine, tri(het)arylmethane, preferably diamino-and triamino(het)arylmethane, mono-, di-, tri-methine cyanine, hemicyanine, merocyanine external cationic merocyanine, external cationic neutrocyanine, nullmethine, preferably naphtholactam or streptocyanine dyes; and An -> : anion, preferably P, B, S (preferably SO 3 ->), 8-25C, preferably 13-25C-alkane sulfonate, 3-18C, preferably 4-18C-perfluoroalkanesulfonate, 9-25C-alkanoate, 9-25C-alkeneoate, 8-25C, preferably 13-25C-alkyl sulfate, 8-25C, preferably 13-25C-alkenyl sulfate, 3-18C, preferably 4-18C-perfluoroalkylsulfate, polyethersulfate based on at least 4 equivalents of ethylene oxide and/or propylene oxide, bis-4-25C-alkyl, 5-7C-cycloalkyl, 3-8C-alkenyl, 7-11C-aralkyl-sulfosuccinate, bis-2-10C-alkyl sulfosuccinate substituted by at least 8 F, 8-25C-alkyl sulfoacetates, benzene sulfonate substituted by halo, 4-25C-alkyl, perfluoro-1-8C alkyl and/or 1-12C-alkoxycarbonyl, or naphthalene or biphenylsulfonate (optionally substituted by nitro, CN, OH, 1-25C-alkyl, 1-12C-alkoxy, amino, 1-12C-alkoxycarbonyl or Cl), or benzene, naphthalene or biphenyldisulfonate (optionally substituted by nitro, CN, OH, 1-25C-alkyl, 1-12C-alkoxy, 1-12C-alkoxy or Cl), benzoate (substituted by dinitro, 6-25C-alkyl, 4-12C-alkoxycarbonyl, benzoyl, toluoyl or chlorobenzoyl), naphthalene dicarboxylic acid anion, diphenyletherdisulfonate, sulfonated or sulfated, optionally at least mono-unsaturated 8-25C-fatty acid esters of aliphatic 1-8C-alcohol or glycerol, bis(sulfo-2-6C-alkyl)-3-12C-alkane dicarboxylic acid ester, bis(sulfo-2-6C-alkyl)itaconic acid ester, (sulfo-2-6C-alkyl)-6-18C-alkanoic acid ester, (sulfo-2-6C-alkyl)-acrylic or methacrylic acid esters, triscatecholphosphate optionally substituted with up to 12 halo, an anion of tetraphenylborate group, cyanotriphenylborate, tetraphenoxyborate, 4-12C-alkyl-triphenyl, phenyl or phenoxy residue optionally substituted by halo, 1-4C-alkyl and/or 1-4C-alkoxy, 4-12-alkyl trinaphthyl borate, tetra-1-20C-alkoxyborate, 7,8- or 7,9-dicarba-nido-undecaborate (1-) or (2-), one or two 1-12C-alkyl or phenyl optionally substituted by B or C, dodecahydro-dicarbadodecaborate-(2-) or B-1-12C-alkyl-C-phenyl-dodecahydro dicarbadodecaborate (1-), where in the case of polyvalent anions such as naphthalene disulfonate An ->is an equivalent of this anion, and the alkane and alkyl groups are optionally branched and/or optionally substituted by halo, CN, methoxy, ethoxy, methoxycarbonyl or ethoxycarbonyl. An independent claim is included for the dye (I) (in which An ->is sec-alkylbenzenesulfonate, secondary or linear alkylsulfate, n-alkylsulfate, sec.alkylsulfonate, sulfosuccinate, triscatecholphosphate, ester-sulfate or sulfonate).