C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
400/7074, 403/84
C07D 211/58 (2006.01) C08G 69/44 (2006.01) C08K 5/34 (2006.01) C08K 5/3435 (2006.01)
Patent
CA 1160220
ABSTRACT OF THE DISCLOSURE Compounds of the formula I Image I in which m is 0 or 1, n is 1 or 2, X is -OH, -OR3 or -NR4R5, R is H or CH3, R1 is an n-valent radical, R2 to R5 are monovalent radicals or hydrogen and Z is a divalent hydrocarbon group, and also salts of these compounds, are valuable light stabilisers for organic materials, especially for polymers. The compounds of formula I can be prepared from the corresponding 4-sec.- aminopiperidines by reaction with cyclic dicarboxylic acid anhydrides and appropriate further re- actions.
373961
Karrer Friedrich
Moser Paul
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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