A water-free preparation process for multimodal...

Details A water-free preparation process for multimodal... A water-free preparation process for multimodal...

C - Chemistry, Metallurgy

08

J

C08J 9/04 (2006.01) C08J 9/00 (2006.01)

Patent

CA 2426013

Prepare a multimodal thermoplastic polymer foam having a distribution of large and small cells in a substantial absence of water by using a blowing agent stabilizer. Multimodal foams of the present invention have blowing agent stabilizer predominantly located proximate to large cells. The resulting multimodal foams have particular utility as thermal insulating materials.

L'invention concerne un procédé pour préparer sensiblement sans eau une mousse multimodale de polymères thermoplastiques qui présente une distribution de grandes et de petites cellules au moyen d'un stabilisant d'agent de gonflement. Dans les mousses multimodales selon la présente invention, le stabilisant d'agent de gonflement est situé de façon prépondérante à proximité des grandes cellules. Les mousses multimodales ainsi obtenues peuvent être utilisées en particulier comme matériaux d'isolation thermique.

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