4-imino-n-alkoxy or oxy-polyalkyl-piperidine compounds and...

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 211/94 (2006.01) C08F 4/00 (2006.01)

Patent

CA 2443718

The present invention relates to selected 4-imino-N-alkoxy-polyalkyl- peperidine compounds preparation, a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) a 4-imino-N-alkoxy- polyalkyl-piperidine compound. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of 4- imino-N-alkoxy-polyalkyl-piperidine compounds for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator, as well as a process for polymerization are also subjects of the present invention.

L'invention concerne la préparation de composés 4-imino-N-alcoxy-polyalkyl-pipéridine de formule (I) et un procédé amélioré pour leur préparation, ainsi qu'une composition polymérisable comprenant a) au moins un monomère éthyléniquement insaturé et, b) un composé 4-imino-N-alcoxy-polyalkyl-pipéridine. Selon d'autres aspects, l'invention concerne un procédé de polymérisation de monomères éthyléniquement insaturés, et l'utilisation de composés 4-imino-N-alcoxy-polyalkyl-pipéridine pour la polymérisation contrôlée. En outre, l'invention concerne les dérivés N-oxyle intermédiaires, une composition des dérivés N-oxyle avec des monomères éthyléniquement insaturés et un initiateur à radical libre, ainsi qu'un procédé de polymérisation.

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