Patent ID: 7354957
Filing Date: 2008-04-08
Classification: C07D,C08F,C09D

Abstract:
1. Photoinitiator compounds of formula (I): where: n is a number from 1 to 6; R A represents a group of formula —[O(CHR a is a number from 1 to 2; b is a number from 4 to 5; Q is a residue of ethylene glycol, propylene glycol, butylene glycol, glycerol, trimethylolpropane, di-trimethylolpropane, pentaerythritol or di-pentaerythritol; x is a number greater than 1 but no greater than the number of available hydroxyl groups in Q; and when x is a number greater than 1 but no greater than 2, y is a number from 1 to 10; or when x is a number greater than 2, y is a number from 3 to 10 and esters thereof in which a free hydroxyl group in Q has been esterified.