TO ENHANCE THE THERMAL INSULATION OF POLYMERIC FOAM BY REDUCING CELL ANISOTROPIC RATIO AND THE METHOD FOR PRODUCTION THEREOF
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 ca...
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Sprache: | eng ; fre |
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Zusammenfassung: | 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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