Derivatives of alkyl-substituted 4-hydroxy-methyl-...

Details Derivatives of alkyl-substituted 4-hydroxy-methyl-... Derivatives of alkyl-substituted 4-hydroxy-methyl-...

C - Chemistry, Metallurgy

07

D

400/3027, 400/50

C07D 211/22 (2006.01) C07D 211/48 (2006.01) C07F 9/58 (2006.01) C07F 9/59 (2006.01) C07F 9/6574 (2006.01) C08K 5/3435 (2006.01) C08K 5/57 (2006.01)

Patent

CA 1264743

T.3289 DERIVATIVES OF ALKYL-SUBSTITUTED 4-HYDROXY-METHYL-PIPERIDINE AND USE THEREOF AS STABILIZERS ABSTRACT OF DISCLOSURE Derivatives of 4-hydroxy-methyl-piperidine having general formula: Image (I) wherein: R1, R2, R3 and R4 may be alkyl or may form, with the carbon they are bound to, a cycloalkyl group or the group Image with R6, R7, R8 and R9 being hydrogen or alkyl; R5 may be H, alkyl, aryl, alkenyl, etc.; Y may be an organic or inorganic group or atom having a valence from 1 to 4 and n is an integer from 1 to 4. The use of the derivatives of the alkyl-substituted 4-hydroxy-methyl-piperidine of formula (I) as stabilizers of polymeric substances, and polymeric compositions stabilized with said piperdine derivatives. I This invention relates to new derivatives of alkyl- substituted 4-hydroxy-methyl-piperidine, to the use thereof as stabilizers of polymeric substances usually subject to worsen- ing owing to thermal and/or photo-oxidation, and to the polymeric compositions stabilized with said derivatives.

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