| 摘要 |
<p>A photopolymerizable composition having an improved sensitivity, which comprises a polymerizable compound having an ethylenically unsaturated bond and a photopolymerization initiator, wherein said photopolymerization initiator comprises a compound represented by general formula I
<Chemistry id="chema01" num="0001"><Image id="ia01" he="25" wi="114" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sup>1</Sup> and R<Sup>2</Sup> each represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, or an aralkyl group; X represent substituent having a Hammett's value of not more than 0.7; and Y represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an aralkyl group, an acyl group, or an alkoxycarbonyl group and a 1,3,5-triazine compound represented by general formula II
<Chemistry id="chema02" num="0002"><Image id="ia02" he="27" wi="68" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sup>3</Sup>, R<Sup>4</Sup> and R<Sup>5</Sup> each represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, or an aralkyl group; at least one of them being a mono-, di-, or tri-halogen-substituted methyl group.</p> |
