Substance mixtures comprising vinyl-containing compounds and...

C - Chemistry – Metallurgy – 07 – F

Patent

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Details

C07F 15/02 (2006.01) C07B 63/04 (2006.01) C07C 7/20 (2006.01) C07C 15/46 (2006.01) C07C 51/50 (2006.01) C07C 57/075 (2006.01) C07C 67/62 (2006.01) C07C 69/15 (2006.01) C07C 69/54 (2006.01) C07C 231/22 (2006.01) C07C 233/03 (2006.01) C07C 253/32 (2006.01) C07C 255/08 (2006.01) C07D 201/18 (2006.01) C07D 207/267 (2006.01) C07D 223/10 (2006.01) C08F 4/00 (2006.01)

Patent

CA 2256379

The invention concerns substance mixtures containing: (A) compounds containing vinyl groups; (B) an active amount of a mixture which inhibits premature polymerization of the compounds containing vinyl groups and contains: (i) at least one N-oxyl compound of a secondary amine which does not carry any hydrogen atoms on the .alpha.-carbon atoms; and (ii) at least one iron compound; (C) optionally nitro compounds; and (D) optionally co-stabilizers. The invention further concerns a process for inhibiting the premature polymerization of compounds (A) containing vinyl groups, and the use of mixture (B), optionally mixed with nitro compounds (C) and/or co-stabilizers (D), for inhibiting the premature polymerization of radically polymerizable compounds and for stabilizing organic materials against the harmful effect of radicals.

L'invention concerne des mélanges de substances contenant: (A) des composés comprenant des groupes vinyle, (B) une quantité efficace d'un mélange inhibant la polymérisation prématurée des composés contenant des groupes vinyle, qui comprend (i) au moins un composé N-oxyle d'une amine secondaire qui ne porte pas d'atome d'hydrogène sur les atomes d' alpha -C, ainsi que (ii) au moins un composé ferreux, (C) éventuellement des composés nitro, ainsi que (D) éventuellement des costabilisants. L'invention concerne également un procédé permettant d'inhiber la polymérisation prématurée de composés (A) contenant des groupes vinyle, ainsi que l'utilisation du mélange (B), éventuellement en mélange avec des composés nitro (C) et/ou des costabilisants (D), pour inhiber la polymérisation prématurée de composés à polymérisation par voie radicalaire et pour stabiliser des matériaux organiques à l'encontre de l'action nuisible de radicaux.

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