1,1,1,2-tetrafluoroethane as a blowing agent in integral...

Details 1,1,1,2-tetrafluoroethane as a blowing agent in integral... 1,1,1,2-tetrafluoroethane as a blowing agent in integral...

C - Chemistry, Metallurgy

08

L

C08L 75/04 (2006.01) C08G 18/65 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2107274

It has been found that 1,1,1,2-tetrafluoroethane (HFC-134a) may be used alone or in combination with water as blowing agents in flexible integral skin foams. Foams prepared using HFC-134a alone or in combination with water exhibit physical characteristics such as resistance to abrasion and cracking on flex comparable to conventional chlorinated fluorocarbon blown foams. The foams of the present invention are suitable for use in shoe sole applications.

On a découvert que le 1,1,1,2-tétrafluoroéthane (HFC-134a) peut être utilisé seul ou en combinaison avec de l'eau comme agent d'expansion dans les pellicules externes incorporées à la mousse. Les mousses préparées à partir du HFC-134a seul ou en combinaison avec de l'eau affichent des caractéristiques physiques comme la résistance à l'abrasion et aux cassures comparables à celles des mousses expansées aux fluorocarbones chlorés classiques. Les mousses de la présente invention conviennent à la fabrication de semelles de chaussures.

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