Patent ID: 6737528
Filing Date: 2004-05-18
Classification: C07D,C08F

Abstract:
A vinylic hindered light stabilizer of the formula (I): whereinR1 is a (C1 to C8) alkyl, hydroxyalky, or cycloalkyl; R2 is hydrogen or methyl; R3 is vinyl; R5 is H or C1-C4 alkyl and X is O, NH or (C1-C8) alkylamino, provided that said compound is not 4-acrylamido-1,2,2,6,6-pentamethylpiperidine 4-methyl acrylamido-1,2,2,6,6-pentamentylpiperidine, 1-n,butyl-2,2,6,6-tetramethyl-4-acryloyloxypiperidine, 4(N-n-propyl)acrylamido-1,2,2,6,6 pentamethylpiperidine or 4(N-n-butyl)acrylamido-1,2,2,6,6 pentamethylpiperidine.