Stabilising organic materials - esp polypropylene against ultraviolet rays using quinoline derivs

摘要

Organic materials, pref. polypropylene, also other plastics, monomers, polishes, creams and lotions, are stabilised against decomposition by UV rays by adding 0.01-5 (0.05-1) wt.% stabilisers having the general formula (I):- (where R1, R2 and R3 each are H, halogen, alkyl, cycloalkyl, or cycloalkyalkyl, alkoxy, cycloalkoxy or cycloalkylalkoxy, -CN or -COOR4 in which R4 is H, alkyl, cycloalkyl or cycloalkylalkyl or Ph opt. substd. by 3 alkyl gps. or an equiv. of a 2- or 3-valent cation; X1 and X2 each is H, halogen, OH, CN, alkyl, cycloalkyl or cycloalkyalkyl or alkoxy, cycloalkoxy or cycloalkylalkoxy), pref. cpds. (Ia) (where R'3 is H or -COOR4; X'1 and X'2 each is H, (cycloalkyl)alkyl or (cycloalkyl)-alkoxy and one X'1 or X'2 is not H), prepd. from cpds.