Polyurethane water-blown integral skin system produced with...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 75/04 (2006.01) C08G 18/10 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C08G 18/63 (2006.01) C08G 18/76 (2006.01) C08J 9/12 (2006.01) C08J 9/34 (2006.01)

Patent

CA 2110749

The present invention relates to water blown integral skin polyurethane foams. These foams are prepared using a diphenylmethane diisocyanate:polytetrahydrofuran prepolymer. The polyurethane foams prepared with this prepolymer exhibit improved abrasion resistance and cold flex characteristics when compared to water blown integral skin foams prepared without the prepolymer. These foams are suitable for use in shoe sole applications.

La présente invention porte sur des mousses de polyuréthane à peau intégrée, soufflées à l'eau. Ces mousses sont préparées à l'aide d'un prépolymère de diisocyanate de méthylènediphényle:polytétrahydrofurane. Les mousses de polyuréthane préparées à l'aide de ce prépolymère possèdent une résistance à l'abrasion et des caractéristiques de flexion à froid améliorées, comparativement à des mousses à peau intégrée, soufflées à l'eau, préparées sans prépolymère. Ces mousses peuvent être utilisées pour les semelles de souliers.

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