Polyalkylpiperidine-substituted lactams and use thereof as...

C - Chemistry – Metallurgy – 08 – K

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400/7085, 260/27

C08K 5/3435 (2006.01) C07D 401/14 (2006.01)

Patent

CA 2004145

Abstract of the Disclosure: Compounds of the formula (I) Image (I) where R1, R2, R3 and R4 are each alkyl or R1 and R2 or R3 and R4 are together tetra- or pentamethylene and R5 is hydrogen, alkanoyl, alkyl, cyanoalkyl, hydroxyalkyl, aminoalkyl or phenylalkyl, in which the phenyl nucleus may be substituted by C1-C4-alkyl, C1-C4-alkoxy or halogen, and the acid addition salts and hydrates of these com- pounds are useful stabilizers for organic materials, in particular plastics.

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