Blends of low density ethylene polymers with certain polyesters
AssigneeGulf Oil Corporation
InventorsKhalid A. Karim, James H. Rea
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Abstract
A compatible blend of polymers is disclosed and consists essentially of 100 parts by weight of a low density ethylene polymer and about 0.2 to 3 parts by weight of either poly(ethylene adipate) or poly(trimethylene adipate). The polymer blends have a lower sealing temperature than the low density ethylene polymer contained therein.
Claims9
A compatible blend of polymers consisting essentially of:
- (a) 100 parts by weight of an ethylene polymer, and
- (b) About 0.2 to 3 parts by weight of a polyester resin;
- said ethylene polymer being a homopolymer of ethylene or copolymer of ethylene with higher alpha-olefins, having a density of less than about 0.945 and a melt index in the range of about 0.5-20, said polyester being poly(ethylene adipate) or poly(trimethylene adipate).
A method for lowering the seal temperature of a film of a low density ethylene polymer which consists essentially of uniformly dispersing about 0.2 to 3 parts by weight of poly(ethylene adipate) or poly(trimethylene adipate) in 100 parts by weight of said ethylene polymer.
Dependencies are inferred from the claim text.