Patent ID: 6365652
Filing Date: 2002-04-02
Classification: C07D,C08K

Abstract:
A method of stabilizing a material which is subject to degradation by actinic radiation by incorporating into said material an amount of an actinic radiation stabilizer composition effective to stabilize the material against the effects of actinic radiation, wherein the actinic radiation stabilizer composition comprises a compound selected from the group consisting of (I), (IA), (II) and (III) whereineach X is independently selected from hydrogen and a blocking group; each of Y and Z is independently selected from an aryl ring of the formula (IV) each R is independently selected from a hydrogen, a hydrocarbyl group and a functional hydrocarbyl group; Râ€² is selected from a divalent hydrocarbyl group and a functional divalent hydrocarbyl group; each R1, R2, R4, R4â€² and R4â€³is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, â€”O(hydrocarbyl), â€”O(functional hydrocarbyl), â€”SR, halogen, â€”SO2R, â€”SO3R, â€”COOR, â€”COR, â€”OCOR, â€”NRR and cyano; and each R3 is independently selected from â€”R, â€”OR, â€”SR, halogen, â€”SO2R, â€”SO3R, â€”COOR, â€”COR, â€”NRR and cyano; wherein at least one R group of a 4-position â€”OR group is selected from a group of the formulae (V) (â€œamido groupâ€ ) and (VI) (â€œcarbamate groupâ€ ) whereinQ is selected from NR10 and O; R5 is selected from a direct bond and a hydrocarbylene group; R8 is a hydrocarbylene group; each R6 and R7 is independently selected from a hydrocarbyl group and a functional hydrocarbyl group; wherein at least one of R6 and R7 is a functional hydrocarbyl group; or R6 and R7 taken together form a group selected from a functional hydrocarbylene group, an unsaturated hydrocarbylene group and an activated unsaturated hydrocarbylene group; each R9 is selected from hydrogen, a hydrocarbyl group and a functional hydrocarbyl group; and R10 is selected from hydrogen and a hydrocarbyl group.