| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel piperazino compound useful as a photoinitiator. <P>SOLUTION: The compound of formula I (wherein, a substituent R<SP POS="POST">1</SP>is independently selected from among a 1-10C alkyl group and an arbitrarily substituted binzyl group; a substituent R<SP POS="POST">2</SP>is independently selected from among an alkyl group or a bonded nitrogen atom together with a nitrogen-containing heterocyclic group; Z is selected from among a 6-10C arylene group and a group of the formula, -(CHR<SP POS="POST">3</SP>)<SB POS="POST">n</SB>-; R<SP POS="POST">3</SP>is hydrogen, a hydroxyl group or a 1-4C alkyl group; n is 0-6, Y is carbonyl or -CH<SB POS="POST">2</SB>-; Q is a residue of a mono- or poly-hydroxyl compound; and x is an integer of 1-6), and its ester are useful as a multifunctional initiator in radiation-hardenable coating compositions. <P>COPYRIGHT: (C)2013,JPO&INPIT |
