초록 ▼

Bisacylphosphine oxides of the general formula [Figure] wherein R1 stands, for example, for a straight-chain or branched C1-18 alkyl radical, a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical, a cyclopentyl, cyclohexyl, phenyl, naphthyl, or biphenylyl radical substituted by F, Cl, B

Bisacylphosphine oxides of the general formula [Figure] wherein R1 stands, for example, for a straight-chain or branched C1-18 alkyl radical, a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical, a cyclopentyl, cyclohexyl, phenyl, naphthyl, or biphenylyl radical substituted by F, Cl, Br, I, C1-C12 alkyl and/or C1-C12 alkoxyl, or an S or N-containing 5-membered or 6-membered heterocyclic ring, and R2 and R3, which are the same or different, stand for a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical, a cyclopentyl, cyclohexyl, phenyl, naphthyl, or biphenylyl radical substituted by F, Cl, Br, I, C1-4 alkyl and/or C1-4 alkoxyl, or an S or N-containing 5-membered or 6-membered heterocyclic ring; or R2 and R3 are joined to form a ring which contains from 4 to 10 carbon atoms and which may be substituted by 1 to 6 C1-4 alkyl radicals. The compounds are prepared by oxidation of the corresponding bisacylphosphines. The compounds are suitable for use as initiators for the photopolymerization of compounds containing ethylenically unsaturated bonds.

대표청구항 ▼

A method of polymerizing a photopolymerizable composition comprising adding a bisacylphosphine oxide having the formula [Figure] I wherein R1 stands for a straight-chain or branched C1-18 alkyl radical, a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenyl radical, a cyclopentyl, cyclohexyl, phen

A method of polymerizing a photopolymerizable composition comprising adding a bisacylphosphine oxide having the formula [Figure] I wherein R1 stands for a straight-chain or branched C1-18 alkyl radical, a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenyl radical, a cyclopentyl, cyclohexyl, phenyl, naphthyl or biphenylyl radical substituted by F, Cl, Br, I, C1-C12 alkyl and/or C1-C12 alkoxyl, an S or N-containing 5-membered or 6-membered heterocyclic ring, or a radical of the formula: [Figure] II wherein n is 1 or 2, and R4, R5, R6 and R7 are H, C1-4 alkyl, C1-4 alkoxyl, F, Cl or Br; R2 and R3, which are the same or different, stand for a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical a cyclopentyl, cyclohexyl, phenyl, naphthyl or biphenylyl radical substituted by F, Cl, Br, I, C1-4 alkyl and/or C1-4 alkoxyl, or an S or N-containing 5-membered or 6-membered heterocyclic ring; or R2 and R3 are joined to form a ring containing 4 to 10 carbon atoms and being optionally substituted by 1 to 6 C1-4 alkyl radicals as a photoinitiator to a photopolymerizable composition and exposing the thus obtained mixture to light.