Patent ID: 7132467

Claim:
A composition comprising a) a polyolefin which is in permanent contact with chlorinated water, and b) as stabilizer at least a compound selected from the group consisting of i) an epoxidized fatty acid having 3 to 22 carbon atoms or an alkyl ester thereof having 1 to 18 carbon atoms; and iii) a compound containing at least one radical of the formula A1 or B1 wherein R 10 , R 11 , R 12 and R 13 , independently of one another, are hydrogen, C 1 –C 10 alkyl, C 2 –C 12 alkyl which is interrupted by oxygen; hydroxyl-substituted C 1 –C 10 alkyl; C 3 –C 6 alkenyl, C 5 –C 8 cycloalkyl, phenyl or C 7 –C 9 phenylalkyl, R 14 is hydrogen, C 1 –C 10 alkyl or phenyl, and R 15 and R 16 , independently of one another, are hydrogen, C 1 –C 10 alkyl, phenyl or C 7 –C 9 phenylalkyl.