Solid mixtures of alpha-hydroxycarbonyl derivatives of...

Details Solid mixtures of alpha-hydroxycarbonyl derivatives of... Solid mixtures of alpha-hydroxycarbonyl derivatives of...

C - Chemistry, Metallurgy

07

C

C07C 49/83 (2006.01) C07C 45/81 (2006.01) C08F 2/50 (2006.01) G03F 7/031 (2006.01)

Patent

CA 2442997

The present invention refers to solid mixtures of alpha hydroxycarbonyl derivatives of alpha-methylstyrene oligomers containing at least 90 % of the dimer isomers, the dimer isomer ratio being between 2.5 and 7, to their preparation and to their use as photoinitiators in photopolymerisation.

La présente invention concerne des mélanges solides de dérivés alpha-hydroxycarbonyle d'oligomères d'alpha-méthylstyrène contenant au moins 90 % des isomères dimériques, le rapport de ces isomères dimériques étant compris entre 2,5 et 7. L'invention concerne également leur préparation et leur utilisation comme photoamorceurs dans la photopolymérisation.

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