发明授权
- 专利标题： Preparation of ethylene copolymers in fluid bed reactor
- 专利标题（中）： 在流化床反应器中制备乙烯共聚物
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申请号： US14414申请日： 1979-02-27
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公开(公告)号： US4302566A公开(公告)日： 1981-11-24
- 发明人: Frederick J. Karol , George L. Goeke , Burkhard E. Wagner , William A. Fraser , Robert J. Jorgensen , Nils Friis
- 申请人： Frederick J. Karol , George L. Goeke , Burkhard E. Wagner , William A. Fraser , Robert J. Jorgensen , Nils Friis
- 申请人地址： NY New York
- 专利权人： Union Carbide Corporation
- 当前专利权人： Union Carbide Corporation
- 当前专利权人地址： NY New York
- 主分类号： C08F2/34
- IPC分类号： C08F2/34 ; C08F210/16 ; C08F4/64
摘要：
Ethylene copolymers having a density of .gtoreq.0.91 to .ltoreq.0.96 and a melt flow ratio of .gtoreq.22 to .ltoreq.32 are readily produced in a low pressure gas phase process at a productivity of .gtoreq.50,000 pounds of polymer per pound of Ti with a particulate catalyst diluted with an inert carrier material and formed from selected organo aluminum compounds and a precursor composition of the formula:Mg.sub.m Ti.sub.1 (OR).sub.n X.sub.p [ED].sub.qwherein ED is a selected electron donor compound.m is .gtoreq.0.5 to .ltoreq.56n is 0 or 1p is .gtoreq.6 to .ltoreq.116q is .gtoreq.2 to .ltoreq.85R is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical, or COR' wherein R' is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical, andX is selected from the group consisting of Cl, Br, I, or mixtures thereof.
公开/授权文献
- USD363384S Recliner armchair 公开/授权日：1995-10-24
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