To enhance the thermal insulation of polymeric foam by...

Details To enhance the thermal insulation of polymeric foam by... To enhance the thermal insulation of polymeric foam by...

C - Chemistry, Metallurgy

08

J

C08J 9/12 (2006.01) B29C 44/30 (2006.01) B29C 44/34 (2006.01) C08L 25/06 (2006.01)

Patent

CA 2486159

There is provided a closed cell polymeric foam material comprising: a polymer having a weight average molecular weight of from approximately 30,000 to 500,000; and a blowing agent, the blowing agent comprising at least one of a fully or partially halogenated hydrocarbon, an aliphatic alcohol, and carbon dioxide; wherein the cell orientation ratio of the polymeric foam material in the x/z direction is from approximately 0.5 to 0.97 and anisotropic ratio range is from 1.6 to 1.03.

L'invention porte sur des produits isolants spumeux et en particulier sur des mousses extrud~es de polystyr­ne ~ orientation am~lior~e des cellules et rapport d'anisotropie des cellules r~duit, et sur leur proc~d~ de production, en am~liorant les propri~t~s isolantes et en r~duisant les coÛts de fabrication. L'invention porte par ailleurs sur des produits isolants spumeux ~ r~sistance ~ la compression am~lior~e obtenus par r~duction de l'orientation des cellules et accroissement de leur rapport d'anisotropie.

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