| US 7,612,122 B2 | ||
| Piperazino based photoinitiators | ||
| Shaun Lawrence Herlihy, Chatham (United Kingdom); Brian Rowatt, Maidstone (United Kingdom); and Robert Stephen Davidson, Leicester (United Kingdom) | ||
| Assigned to Sun Chemical Corporation, Parsippany, N.J. (US) | ||
| Appl. No. 11/718,952 PCT Filed Nov. 09, 2005, PCT No. PCT/IB2005/004157 § 371(c)(1), (2), (4) Date Sep. 27, 2007, PCT Pub. No. WO2006/082477, PCT Pub. Date Aug. 10, 2006. |
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| Claims priority of application No. 0424831 (GB), filed on Nov. 10, 2005. | ||
| Prior Publication US 2008/0045620 A1, Feb. 21, 2008 | ||
| Int. Cl. C08F 2/46 (2006.01); C08F 2/50 (2006.01) | ||
| U.S. Cl. 522—150 [522/39; 522/90; 522/96; 522/100; 522/104; 522/107; 522/151; 522/153; 522/173; 522/178; 522/181; 544/392; 544/395] | 38 Claims |
1. A compound of formula (I):
 where:
the substituents R1 are individually selected from C1-C10 alkyl groups and optionally substituted benzyl groups;
the substituents R2 are individually selected from alkyl groups or, together with the nitrogen atom to which they are attached, represent a nitrogen-containing
heterocyclic group;
Z is selected from C6-C10 arylene groups and groups of formula —(CHR3)n—,
where R3 is a hydrogen atom, a hydroxy group or a C1-C4 alkyl group, and n is a number from 0 to 6;
Y is selected from carbonyl groups and the —CH2— group;
Q is selected from the residues of mono- or poly-hydroxy compounds having from 1 to 6 hydroxy groups; and
x is a number from 1 to 6;
and esters thereof.
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