Integral skin foams employing pentafluorobutane blowing agents

Details Integral skin foams employing pentafluorobutane blowing agents Integral skin foams employing pentafluorobutane blowing agents

C - Chemistry, Metallurgy

08

J

C08J 9/34 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2404583

It has been found that non-chlorinated pentafluorobutane blowing agents may be used alone or in combination with water in flexible integral skin foams. For example, foams prepared using 1,1,1,3,3-pentafluorobutane (HFC 365mfc) alone or in combination with water or other non-cholorinated hydrocarbons such as heptafluoropropane exhibit improved physical characteristics, such as resistance to abrasion and cracking, on flex comparable to conventional chlorinated fluorocarbon blown foam.

On a découvert qu'on peut utiliser des agents soufflants de pentafluorobutane non chlorés seuls ou combinés à de l'eau dans des mousses souples présentant une pellicule supérieure de densité plus élevée. Par exemple, les mousses préparées au moyen de 1,1,1,3,3,3-pentafluorobutane (HFC 365 mfc), seules ou combinées à de l'eau ou à d'autres hydrocarbures non chlorés tels que heptafluoropropane, présentent des caractéristiques physiques améliorées, telles que la résistance à l'abrasion et à la fissuration sur des spécimens comparables à des mousses soufflées classiques au fluorocarbone chloré.

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