Back to results
US 5,344,714 AGranted
LLDPE composite film free of melt fracture
AssigneeMobil Oil Corporation
InventorTien-Kuei Su
Life of this patent
Estimating the term…
Abstract
In accordance with the invention a linear low density polyethylene is coextruded with a composition containing a LDPE and/or HDPE. The product film exhibits substantially no melt fracture and no surface defects.
Claims21
A linear low density polyethylene film composite which is formed by coextrusion and which is free of melt fracture, comprising
- A) a layer of linear low density polyethylene (LLDPE) blended with polystyrene which layer comprises at least 70 weight percent of the composite wherein the blend comprises 0.5 to 5 weight percent of polystyrene.
- B) a second lamina comprising less than 30 weight percent of the composite and containing a resin selected from the group consisting of high density polyethylene, low density polyethylene and admixtures thereof.
Dependencies are inferred from the claim text.