Eastman Chemical Company

Bruce Alexander Gillespie

Ray Edwards

Diane Hines Farnham

Bruce W Foster

A novel composition of at least three different polyethylene-based components is provided. The blend comprises a linear low density polyethylene, a high density polyethylene and a low density polyethylene. The composition can be used in extrusion coating, in preparing films, cast or blown included, and other applications, such as laminates.

Blends containing linear low density polyethylene, high density polyethylene, and low density polyethylene particularly suitable for extrusion coating and films

An improved extrusion coating is described comprising at least two polyethylene homopolymers, one component being a low melt index medium density polyethylene homopolymer, and another component being a high melt index low density polyethylene homopolymer. Superior heat seal strengths are achieved with this blend.

Polyethylenes with enhanced heat seal properties

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.

Blends of polyethylene for extrusion coating

A process of producing a heat sealed extrusion coated polyethylene article is disclosed. This process entails heat sealing, at a temperature below 95.degree. C. two opposing extrusion coated polyethylene laminate surfaces thereby welding the surfaces to effect a heat seal. The polyethylene has a narrow molecular weight distribution, a low melt index, a low swell ratio, and a polydispersity index below 5.

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Overton, TX, United States of America

Bruce Alexander Gillespie