发明名称 |
HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, CLOSURE DEVICES MADE THEREFROM, AND METHOD OF MAKING SUCH CLOSURE DEVICES |
摘要 |
The instant invention is a high-density polyethylene composition, method of producing the same, closure devices made therefrom, and method of making such closure devices. The high-density polyethylene composition according to the present invention comprises (a) a first component comprising a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.927 to 0.938 g/cm3, and a melt flow rate (I21) in the range of 4 to 10 g/10 minutes, and (b) a second component comprising a low molecular weight ethylene polymer having a density in the range of 0.960 to 0.975 g/cm3, and a melt index (I2) in the range of 100 to 1200 g/10 minutes; and wherein the high-density polyethylene composition has a melt index (I2) in the range of from 2 to 10 g/10 minutes, a density in the range of from 0.950 to 0.960 g/cm3, and a flow direction shrinkage to cross flow direction shrinkage ratio in the range of from 2 to 3.2, and an environmental stress crack resistance (ESCR) (F50) according to ASTM D-1693, condition B at 50 °C., and using 10 percent Branched Octylphenoxy Poly (Ethyleneoxy) Ethanol, in the range of equal to or greater than 50 hours. |
申请公布号 |
WO2010088265(A1) |
申请公布日期 |
2010.08.05 |
申请号 |
WO2010US22220 |
申请日期 |
2010.01.27 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC.;DAVIS, MARK;ELLEY-BRISTOW, DALE;MICHIE, WILLIAM;WHITED, STEPHANIE;HERMEL-DAVIDOCK, THERESA |
发明人 |
DAVIS, MARK;ELLEY-BRISTOW, DALE;MICHIE, WILLIAM;WHITED, STEPHANIE;HERMEL-DAVIDOCK, THERESA |
分类号 |
C08L23/04;B65D41/00 |
主分类号 |
C08L23/04 |
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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