Process for producing a performance enhanced single-layer blow-moulded container
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Abstract
A process for producing a single-layer blow-moulded container having improved mechanical, thermo-mechanical and barrier properties without loss of impact strength or stress-crack resistance is disclosed. The container is produced by direct extrusion of masterbatch with polyethylene matrix resin. The viscosity of the masterbatch (ηMB) and the viscosity of the polyethylene matrix resin (ηPE) are in the ratio of between 0.3 to 1.9 at a shear rate of between 10 to 100 1/s. The invention also relates to the single layer blow moulded container produced by that process.
56 Citations
35 Claims
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1-13. -13. (canceled)
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14. A process for producing a single-layer blow-moulded container comprising:
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providing a masterbatch consisting of maleated polyethylene and a modified nanoclay in the amount of 20% to 50% by weight of the masterbatch;
directly extruding the masterbatch in the amount of 5% to 20% by weight with a polyethylene matrix resin at a viscosity ratio of between 0.3 to 1.9 at a shear rate of between 10 to 100 1/s; and
at a temperature of between 150°
C. and 230°
C. to form the single-layer blow-moulded container. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification