发明授权
US06388051B1 Process for selecting a polyethylene having improved processability
有权
选择具有改进加工性能的聚乙烯的方法
- 专利标题： Process for selecting a polyethylene having improved processability
- 专利标题（中）： 选择具有改进加工性能的聚乙烯的方法
-
申请号： US09741246申请日： 2000-12-20
-
公开(公告)号： US06388051B1公开(公告)日： 2002-05-14
- 发明人: Jinder Jow , Alfred Mendelsohn
- 申请人： Jinder Jow , Alfred Mendelsohn
- 主分类号： C08F21016
- IPC分类号： C08F21016
摘要：
A process for selecting and extruding a copolymer having improved extrusion processability comprising (a) selecting one or more copolymers of ethylene and one or more alpha-olefins having 3 to 12 carbon atoms, each of said copolymers having essentially no long chain branching and having (1) a melt index selected from the range of about 0.1 to about 20 grams per 10 minutes, and (2) a melt flow ratio having at least about a value determined by the following formula: 2.7183 to the power of {(1.477 minus [0.279 times the natural logarithm of the selected melt index]) divided by 0.29} and (b) extruding said copolymer around an electrical conductor.