Patent ID: 7196135

Claim:
A phosphorus-free stabilizer composition comprising A) at least one 3-arylacrylate of the formula I where Ar is phenyl radical which contains at least one substitutent selected from C 1 –C 4 -alkoxy, R 1 is C 5 –C 16 -alkyl, R 2 is hydrogen or methyl; and R 3 is hydrogen, B) at least one acid-α-olefin copolymer composed of structural units of the formula III, where R 5 is a tetramethylpiperidinyl radical of the formula IV, R 6 is C 14 –C 28 -alkyl, R 7 is hydrogen or C 1 –C 6 -alkyl, and n ranges from 5 to 100; C) at least one phenol of the formula II where R 4 is C 1 –C 20 -alkoxycarbonyl-C 1 –C 4 -alkyl.