Membranes of polyurethane based materials including...

Details Membranes of polyurethane based materials including... Membranes of polyurethane based materials including...

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) C08G 18/42 (2006.01) C08L 75/06 (2006.01) A43B 13/20 (2006.01) F15B 1/08 (2006.01)

Patent

CA 2614618

The invention provides membranes which can be employed in various applications as either monolayers or multi-layered laminates. The membrane includes a polyurethane including a polyester polyol and has a yellowness index of 4.0 or less. The membrane has an average wall thickness of 32 mils.

La présente invention consiste en des membranes qui peuvent être utilisées dans diverses applications en tant que complexes laminés monocouches ou multicouches. Cette membrane est composée d'un polyuréthane comportant un polyester de polyol et son indice de jaunissement est de 4,0 ou moins. La paroi de cette membrane est d'une épaisseur moyenne de 32 mils.

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