Method for free-radical polymerization of ethylenically...

Details Method for free-radical polymerization of ethylenically... Method for free-radical polymerization of ethylenically...

C - Chemistry, Metallurgy

08

F

C08F 2/00 (2006.01) C08F 4/04 (2006.01) C08F 4/32 (2006.01)

Patent

CA 2574563

The invention relates to a method for radical polymerization of one or several ethylenically unsaturated compounds, characterized in that it consists in providing at least 80.8 per cent by weight ethylenically unsaturated compounds in relation to the total weight of the ethylenically unsaturated compounds, adding at least one polymerization initiator for radical polymerization in at least two steps, wherein more polymerization initiator is added in the second step than in the first.

L'invention concerne un procédé pour effectuer la polymérisation radicalaire d'un ou de plusieurs composés éthyléniquement insaturés. Ce procédé est caractérisé en ce qu'il consiste : à fournir, par rapport au poids total des composés éthyléniquement insaturés, au moins 80,0 % en poids des composés éthyléniquement insaturés, et ; à ajouter, au cours d'au moins deux étapes, au moins un initiateur de polymérisation pour la polymérisation radicalaire, la quantité d'initiateur de polymérisation ajoutée lors de la deuxième étape étant supérieure à la quantité d'initiateur de polymérisation ajoutée lors de la première étape.

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