发明名称 |
Polyolefin bottles with glossy surface |
摘要 |
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. Preferably the 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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申请公布号 |
US5330808(A) |
申请公布日期 |
1994.07.19 |
申请号 |
US19910802179 |
申请日期 |
1991.12.04 |
申请人 |
DU PONT CANADA INC. |
发明人 |
DUFF, ALLAN W.;KRYSMANSKI, HEINZ P.;PLISHKA, HELGA A. |
分类号 |
B65D1/02;(IPC1-7):B65D23/00 |
主分类号 |
B65D1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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