C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
400/7087, 260/27
C07D 401/12 (2006.01) C07D 211/58 (2006.01) C07D 401/14 (2006.01) C08K 5/34 (2006.01) C08K 5/3435 (2006.01)
Patent
CA 1302408
3-16470/+/CHM 30 Piperidine compounds for use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials Abstract of the disclosure The novel compounds of the formula (I) Image (I) in which n is 1 or 2, R1 is hydrogen, O*, OH, NO, CH2CN, C1-C8-alkyl, allyl, benzyl, OH-monosubstituted C2-C4-alkyl, C1-C18-alkyloxy, C5-C12- cycloalkyloxy or C1-C8-acyl, R2 is C1-C18-alkyl, C5-C12-cycloalkyl, C7-C12-phenylalkyl, C1-C12-alkoxy-monosubstituted C2-C4-alkyl, tetra- hydrofurfuryl or a group of the formula (II) Image (II) in which R1 is as defined above, and, if n - l, A is a group of the formula (III) Image (III) in which R1 is as defined above, R3 is as defined for R2 and p is an integer from 1 to 5, or, if n = 2, A is a group of the formula (IV), (V), (VI) or (VII) Image , Image (IV) (V) Image , Image (VI) (VII) in which p is as defined above, R4 is as defined above for R2, R5 is C2-C12-alkylene, C6-C15-cycloalkylene or xylylene, Z is a group of the formula (VIII) Image (VIII) in which R1, R2 and p are as defined above, R6 and R8 which can be identical or different are C1-C8-alkyl, cyclohexyl, benzyl or a group of the formula (II) and R7 is C2-C12-alkylene, C6-C15-cycloalkylene or xylylene, or the group Image is a heterocyclic radical of the formula (IX) or (X) Image , Image (IX) (X) in which each R9 independently is hydrogen or methyl, r is zero or 1 and R2 is as defined above, are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.
565969
Borzatta Valerio
Cantatore Giuseppe
Masina Franca
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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