发明名称 |
Polyethylene compositions for rotational molding |
摘要 |
Polyethylene blend compositions suitable for rotomolding, rotomolded articles, and processes for rotomolding articles are provided. The polyethylene compositions include a first polyethylene having a melt index of 0.4 to 3.0 g/10 min and a density of from 0.910 to 0.930 g/cm<3>; and a second polyethylene having a melt index of 10 to 30 g/10 min and a density of 0.945 to 0.975 g/cm<3>. The composition has a density of from 0.930 to 0.955 g/cm<3 >and a melt index of 1.5 to 12 g/10 min, and the first and second polyethylenes differ in density by from 0.030 to 0.048 g/cm<3>. These compositions exhibit improved physical properties, such as Environmental Stress Crack Resistance and Izod Impact Strength.
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申请公布号 |
US2004062942(A1) |
申请公布日期 |
2004.04.01 |
申请号 |
US20030666710 |
申请日期 |
2003.09.18 |
申请人 |
LUSTIGER ARNOLD;LOHSE DAVID J.;GRAHAM BLAIR A. |
发明人 |
LUSTIGER ARNOLD;LOHSE DAVID J.;GRAHAM BLAIR A. |
分类号 |
C08L23/08;(IPC1-7):B32B27/32 |
主分类号 |
C08L23/08 |
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