Liner compositions

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/32 (2006.01) C08J 5/04 (2006.01) C08K 7/02 (2006.01) C08L 23/08 (2006.01) C08L 23/16 (2006.01)

Patent

CA 2320708

The subject invention provides a flexible, protective, integral liner comprising at least one first polymer which is a homogeneous linear or substantially linear ethylene/.alpha.-olefin interpolymer having a density of from 0.850 g/cm3 to 0.920 g/cm3, and at least one second polymer which is an ethylene/.alpha.-olefin interpolymer having a density of from 0.905 g/cm3 to 0.935 g/cm3, provided that the density of the second polymer is at least 0.002 g/cm3 greater than the density of the first polymer. In preferred embodiments, the liner will further comprise an ignition resistance additive. The liners of the invention exhibit an excellent balance of flexibility and strength, and, when an ignition resistance additive is employed, excellent ignition resistance.

L'invention concerne un revêtement intégral, protecteur, souple, comportant au moins un premier polymère consistant en un copolymère d'éthylène/ alpha -oléfine homogène linéaire ou sensiblement linéaire, d'une densité de 0,850 g/cm<3> à 0,920 g/cm<3>, et au moins un deuxième polymère consistant en un copolymère d'éthylène/ alpha -oléfine, d'une densité de 0,905 g/cm<3> à 0,935 g/cm<3>, à condition que la densité du deuxième polymère soit supérieure d'au moins 0,002 g/cm<3> à la densité du premier polymère. Dans des réalisations préférées, ce revêtement comporte également un additif ignifuge. Les revêtements de l'invention présentent un excellent équilibre entre souplesse et résistance, et, lors de l'utilisation d'un additif ignifuge, une excellente résistance à l'inflammation.

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