Polyolefin bottles with glossy surface

Details Polyolefin bottles with glossy surface Polyolefin bottles with glossy surface

B - Operations, Transporting

65

D

B65D 1/00 (2006.01) B29C 49/06 (2006.01) B65D 1/02 (2006.01)

Patent

CA 2056839

A bottle having a glossy surface, with a gloss of at least 50 on its external surface. The bottle has its external surface formed from a polymer selected from linear polyethylene having a density of at least about 0.940 g/cm3, a melt index of less than 2.0 dg/min and a stress exponent of less than 1.5. Preferablythe polymer contains at lease 400 ppm of a fluoroelastomer processing aid. A process for making bottle with a glossy surface, consisting essentially of blow moulding polymer in continuous extrusion blow moulding apparatus or injection blow moulding apparatus, using a mould with a polished surface and a shear rate of less than 10 000 sec-1.

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