Use of cross-linked polyethylene and uhmw polyethylene in a...

Details Use of cross-linked polyethylene and uhmw polyethylene in a... Use of cross-linked polyethylene and uhmw polyethylene in a...

B - Operations, Transporting

32

B

B32B 27/32 (2006.01) B29C 53/66 (2006.01) B32B 1/08 (2006.01) B32B 27/08 (2006.01) F16L 11/04 (2006.01)

Patent

CA 2180784

A sandwich of a series of alternating layers of ultra high molecular weight polyethylene and cross-linked polyethylene have been found to offer much greater resistance to permeation than the same thickness of a mixture of ultra high molecular weight polyethylene and cross-linked polyethylene as well as improved bending crack resistance when measured in aromatic solvents or mineral acids, thus, affording a way to make improved hose and linings for tanks of wood or metal.

Il a été observé qu'un sandwich fait d'une série de couches alternantes de polyéthylène et de polyéthylène réticulé de poids moléculaire ultra élevé offrait une résistance plus grande à la perméation qu'un mélange de polyéthylène et de polyéthylène réticulé de poids moléculaire ultra élevé de même épaisseur; de plus, l'invention offre une résistance améliorée aux craquelures en flexion mesurée dans des solvants aromatiques ou des acides minéraux, ce qui permet de fabriquer des boyaux et des revêtements pour réservoirs de bois ou de métal améliorés.

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