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1.发明公开High-rigidity, high-melt-viscoelasticity polypropylene and process for producing the same 失效高刚性，高schmelzviskoelastisches聚丙烯和过程及其制备。
公开(公告)号：EP0098077A1
公开(公告)日：1984-01-11
申请号：EP83303449.9
申请日：1983-06-15
申请人： Chisso Corporation
CPC分类号： C08F10/06 , Y10S526/905 , C08F4/655 , C08F4/6552
摘要： A superior high-rigidity and high-melt-viscoelasticity polypropylene for sheets to be post-processed and for blow moulding is produced by subjecting propylene to a multi-stage polymerization into polymer portions of two sections in the presence of a specified Ziegler Natta catalyst, the relationship between the intrinsic viscosities of the polymer portions of the respective sections being regulated within a specific range and also the amount ratio of the polymer portions of the respective sections being regulated.
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2.发明授权High-rigidity, high-melt-viscoelasticity polypropylene and process for producing the same 失效高刚性，高熔点粘弹性聚丙烯及其制造方法
公开(公告)号：EP0098077B1
公开(公告)日：1986-10-22
申请号：EP83303449.9
申请日：1983-06-15
申请人： Chisso Corporation
CPC分类号： C08F10/06 , Y10S526/905 , C08F4/655 , C08F4/6552
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公开(公告)号：EP0103987A3
公开(公告)日：1985-06-05
申请号：EP83304770
申请日：1983-08-17
申请人： Chisso Corporation
IPC分类号： C08F297/08
CPC分类号： C08F297/083 , C08L23/10 , C08L23/16 , C08L2205/02 , C08L2666/04
摘要： An ethylene-propylene block copolymer capable of producong foamed shaped articles with a uniform and fine foam structure even without adding resins comprises a propylene homopolymer portion and an ethylene-propylene (EP) copolymer portion and is characterised in that the homopolymer portion is obtained by polymerizing propylene in two stages so that the propylene homopolymer portion comprises a lower and a higher molecular weight portion, relative to the molecular weight of the propylene homopolymer portion; there is a specified relationship between the melt flow rates under defined conditions; the EP copolymer portion has an ethylene content of 60 to 95 % based on the copolymer portion; and the block copolymer has an ethylene content of 10 to 40 % based on the block copolymer.
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4.发明授权
公开(公告)号：EP0103987B1
公开(公告)日：1988-10-12
申请号：EP83304770.7
申请日：1983-08-17
申请人： Chisso Corporation
IPC分类号： C08F297/08
CPC分类号： C08F297/083 , C08L23/10 , C08L23/16 , C08L2205/02 , C08L2666/04
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5.发明公开
公开(公告)号：EP0103987A2
公开(公告)日：1984-03-28
申请号：EP83304770.7
申请日：1983-08-17
申请人： Chisso Corporation
IPC分类号： C08F297/08
CPC分类号： C08F297/083 , C08L23/10 , C08L23/16 , C08L2205/02 , C08L2666/04
摘要： An ethylene-propylene block copolymer capable of producong foamed shaped articles with a uniform and fine foam structure even without adding resins comprises a propylene homopolymer portion and an ethylene-propylene (EP) copolymer portion and is characterised in that the homopolymer portion is obtained by polymerizing propylene in two stages so that the propylene homopolymer portion comprises a lower and a higher molecular weight portion, relative to the molecular weight of the propylene homopolymer portion; there is a specified relationship between the melt flow rates under defined conditions; the EP copolymer portion has an ethylene content of 60 to 95 % based on the copolymer portion; and the block copolymer has an ethylene content of 10 to 40 % based on the block copolymer.
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