Polyethylene composition for stretched tape products
AssigneeBasell Polyolefine GmbH
InventorsFranco Sartori, Siegfried Grabowski
Life of this patent
Estimating the term…
Abstract
A polyethylene composition, in particular suitable for the preparation of monofilaments, mono-tapes and stretched tapes, is described. The polyethylene composition of the invention comprises 95.1%-99.5% by weight of polyethylene having a density above 0.930 g/cm3 and a polydispersity Mw/Mn from 2.0 to 5.9, and 4.9%-0.5% by weight of polybutene. The bubble stability and the me-chanical properties of the films prepared from this composition are advantageously improved. The use of a polyethylene composition comprising 90.0%-99.5% by weight of polyethylene having a density above 0.930 g/cm3, and 10.0%-0.5% by weight of polybutene, for preparing monofila-ments, monotapes or stretched tapes is also described.
Claims6
A polyethylene composition comprising:
- (a) 95.1%-99.5% by weight of polyethylene having a density above 0.930 g/cm3 and a polydispersity MW/Mn from 2.0 to 5.9, wherein the polyethylene has a MFR (190/5) from 1.5 g/10 min to 5.0 g/10 min;
- and
- (b) 4.9%-0.5% by weight of polybutene which has a MFR (190/2) from 1 g/10 min to 10 g/10 min.
Dependencies are inferred from the claim text.