Blends of polyethylene for extrusion coating

Details Blends of polyethylene for extrusion coating Blends of polyethylene for extrusion coating

C - Chemistry, Metallurgy

08

L

C08L 23/06 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01) C09D 123/04 (2006.01) C09D 123/06 (2006.01) C09D 123/08 (2006.01)

Patent

CA 2283675

A blend of at least three different polyethylene-based components is described which can be extrusion coated onto a substrate to give a strong bond therewith with short curing times. The blend comprises a medium density polyethylene with a narrow molecular weight distribution, a low density polyethylene homopolymer with a broad molecular weight distribution, and a linear low density polyethylene copolymer.

L'invention concerne un mélange constitué d'au moins trois polyéthylènes différents, avec lequel on peut revêtir par extrusion un substrat de façon à former une liaison forte avec des temps de cuisson brefs. Le mélange comprend un polyéthylène de densité moyenne avec une distribution étroite des poids moléculaires, un homopolymère de polyéthylène de basse densité avec une distribution large des poids moléculaires, et un copolymère de polyéthylène de basse densité linéaire.

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