发明名称 |
POLYETHYLENE MOLDING MATERIAL AND PIPE PRODUCED THEREWITH HAVING MECHANICAL PROPERTIES |
摘要 |
A polyethylene molding material has a bimodal molecular weight distribution with an overall density of >=0.948 g/cm<3 >and a melt flow index MFI190/5 of <=0.2 dg/min. The molding material comprises from 35 to 65% by weight of low-molecular-weight ethylene hompolymer A having a viscosity number VNA in the range from 40 to 90 cm<3>/g, a melt flow index MFI190/2.16 A in the range from 40 to 2000 dg/min and a density dA of >=0.965 g/cm<3>. Also included is from 35 to 65% by weight of high-molecular-weight ethylene copolymer B having a viscosity number VNB in the range from 500 to 2000 cm<3>/g, a melt flow index MFI190/5 B in the range from 0.02 to 0.2 dg/min and a density dB in the range from 0.922 to 0.944 g/cm<3>. |
申请公布号 |
EP1192216(A1) |
申请公布日期 |
2002.04.03 |
申请号 |
EP20000945778 |
申请日期 |
2000.06.20 |
申请人 |
BASELL POLYOLEFINE GMBH |
发明人 |
BOEHM, LUDWIG;BERTHOLD, JOACHIM;ENDERLE, JOHANNES-FRIEDRICH;DAMM, ELKE;SCHULTE, ULRICH |
分类号 |
F16L9/12;C08L23/04;C08L23/06;C08L23/08;C09D123/04;(IPC1-7):C08L23/04 |
主分类号 |
F16L9/12 |
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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