Substantially anhydrous blowing agent and process for...

Details Substantially anhydrous blowing agent and process for... Substantially anhydrous blowing agent and process for...

C - Chemistry, Metallurgy

08

J

C08J 9/10 (2006.01) C07C 281/20 (2006.01)

Patent

CA 2304561

It provides a blowing agent which is significantly inhibited from solidification and is exceedingly useful as a blowing agent satisfactory in flowability, dispersibility into resins, and the like, even after the lapse of a prolonged period of time, and a process for producing the same. The blowing agent o-f the present invention is substantially anhydrous blowing agent, and it is obtained by treating a blowing agent with a surface-treating agent capable of removing water from the blowing agent, followed by optionally heating during or after the treatment.

L'invention concerne un agent moussant présentant des propriétés remarquables de solidification régulée, et qui conserve une fluidité et une dispersibilité élevées dans une résine, même après stockage prolongé; et un procédé de production de celui-ci. L'agent est sensiblement anhydre et son procédé de production comporte l'étape consistant à traiter un agent moussant au moyen d'un agent de traitement de surface capable d'éliminer l'eau de l'agent moussant, et, si nécessaire, chauffer l'agent moussant au cours du traitement ou après celui-ci.

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