A foamable composition using high density polyethylene

Details A foamable composition using high density polyethylene A foamable composition using high density polyethylene

C - Chemistry, Metallurgy

08

L

C08L 23/06 (2006.01) C08J 9/00 (2006.01) C08J 9/14 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01) C08L 25/04 (2006.01) C08L 25/12 (2006.01) C08L 53/00 (2006.01)

Patent

CA 2327933

A polymeric composition for producing foam in which the polymeric composition comprises high density polyethylene, alkenyl aromatic polymer and, optionally, a resiliency modifier resin. The high density polyethylene is in an amount of from about 45 to about 90 weight percent of the polymeric composition. The high density polyethylene has a z-average molecular weight, M z, greater than about 1,000,000. The alkenyl aromatic polymer is in the amount of from about 3 to about 45 weight percent of the polymeric composition. The resiliency modifier resin is in the amount of from 0 to about 40 weight percent of the polymeric composition. The foam is produced in the absence of a significant amount of a stability control agent.

La présente invention concerne une composition polymérique productrice de mousse qui comprend du polyéthylène haute densité, un polymère aromatique d'alcènyle et, éventuellement, une résine modificatrice de résilience. Le polyéthylène haute densité représente environ 45 % à environ 90 % en poids de la composition polymérique. Le poids moléculaire moyen Mz du polyéthylène haute densité est supérieur à 1000000. Le polymère aromatique d'alcènyle représente environ 3 % à environ 45 % en poids de la composition polymérique. La résine modificatrice de résilience représente environ 0 % à environ 40 % en poids de la composition polymérique. La mousse est produite en l'absence d'une quantité significative d'un agent de stabilisation.

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