摘要 |
A photoinitiator is provided which exhibits excellent photosensitivity, yields colorless products, and is usable in thick layer UVcurable coating. A novel chemical compound is also provided which is usable for the photoinitiator. Photocurable composition is also provided which has these properties. The photoinitiator consists essentially of a compound having a molicular weight of 1000 or less, and having a chemical structure represented by the following formula (1), wherein R>3< and R>4< independently denote a specific alkyl group, and R>1< and R>2< independently de note an electron attracting group or a specific alkyl group, and weight percentage of a chemical structure element represented by the following formula (2), which is expressed in formula (1) based on the total molecular weight of the compound, is 17% to 54% by mass.
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申请人 |
DAINIPPON INK AND CHEMICALS, INC.;LACHOWICZ, ARTUR;GAUDL, KAI-UWE;FERBITZ, JENS;GRAHE, F., GERWALD;JING, YU;GUANGHUI, WU |
发明人 |
LACHOWICZ, ARTUR;GAUDL, KAI-UWE;FERBITZ, JENS;GRAHE, F., GERWALD;JING, YU;GUANGHUI, WU |