发明申请
US20120022214A1 HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, CLOSURE DEVICES MADE THEREFROM, AND METHOD OF MAKING SUCH CLOSURE DEVICES
有权
高密度聚乙烯组合物,其制造方法,其制造的闭合装置以及制造这种封闭装置的方法
- 专利标题: HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF PRODUCING THE SAME, CLOSURE DEVICES MADE THEREFROM, AND METHOD OF MAKING SUCH CLOSURE DEVICES
- 专利标题(中): 高密度聚乙烯组合物,其制造方法,其制造的闭合装置以及制造这种封闭装置的方法
-
申请号: US13144465申请日: 2010-01-27
-
公开(公告)号: US20120022214A1公开(公告)日: 2012-01-26
- 发明人: Mark B. Davis , Dale M. Elley-Bristow , William J. Michie, JR. , Stephanie M. Whited , Theresa J. Hermel-Davidock
- 申请人: Mark B. Davis , Dale M. Elley-Bristow , William J. Michie, JR. , Stephanie M. Whited , Theresa J. Hermel-Davidock
- 申请人地址: US MI Midland
- 专利权人: Dow Global Technologies LLC
- 当前专利权人: Dow Global Technologies LLC
- 当前专利权人地址: US MI Midland
- 国际申请: PCT/US2010/022220 WO 20100127
- 主分类号: C08L23/08
- IPC分类号: C08L23/08
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.
公开/授权文献
信息查询