Patent ID: 6509399
Filing Date: 2003-01-21
Classification: C07D,C08K,C09K

Abstract:
A method of stabilizing a material which is subject to degradation by actinic radiation comprising:incorporating into the 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 of formula (II): whereinX is hydrogen or a blocking group; each R independently is a hydrocarbyl group of 1 to 21 carbon atoms; R1 is C1-C24 alkyl, C1-C24 branched alkyl, C2-C24 alkenyl, a cycloalkyl from 5-24 carbon atoms, an araalkyl from 7-24 carbon atoms, â€”COR9, â€”CO2R9, â€”CONHR9, â€”SO2R9, C1-C18 alkyl substituted with at least one hydroxy, C1-C18 alkoxy, C3-C18 alkenoxy, halogen, phenoxy, C1-C18 alkyl-substituted phenoxy, C1-C18 alkoxy-substituted phenoxy, halogen-substituted phenoxy, â€”COOH, â€”COOR9, â€”CONH2, â€”CONHR9, â€”CON(R9)(R10), â€”NH2, â€”NHR9, â€”N(R9)(R10), â€”NHCOR11, â€”N(R9)COR11, â€”NHCOOR11, â€”N(9)COOR11, â€”CN, â€”OCOR11, â€”OC(O)NHR9, â€”OC(O)N(R9)(R10), glycidyloxy, glycidyl, cyclohexyl optionally substituted with hydroxyl or â€”OCOR11, and C2-C50 alkyl interrupted by at least one oxygen atom or carbonyl group and optionally substituted by one or more substituents selected from the group consisting of hydroxy or C1-C12 alkoxy; wherein R9 and R10 each independently are C1-C12 alkyl, C3-C12 alkoxyalkyl, C4-C16 dialkylaminoalkyl, C5-C12 cycloalkyl, or R9 and R10 taken together are C3-C9 alkylene, C3-C9 oxoalkylene or C3-C9 azaalkylene; and R11 is C1-C18 alkyl, C2-C18 alkenyl, or phenyl; and R3 and R4 are each independently hydrogen, hydrocarbyl group of 1 to 21 carbon atoms, halogen, hydroxyl, cyano, â€”O(hydrocarbyl), â€”O(functional hydrocarbyl), â€”N(hydrocarbyl)(hydrocarbyl) and mixtures thereof.