公开(公告)号：WO2008015113A2

公开(公告)日：2008-02-07

申请号：PCT/EP2007/057539

申请日：2007-07-20

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： GOVONI, Gabriele ,  COVEZZI, Massimo ,  PENZO, Giuseppe ,  CIARROCCHI, Antonio ,  DE LUCIA, Antonio

IPC: C08F210/06

CPC classification number: C08F297/08 ,  C08F210/06 ,  C08F297/083 ,  C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2308/00 ,  C08F2/001 ,  C08F2/34 ,  C08L2666/02 ,  C08L2666/06 ,  C08F210/16 ,  C08F2500/18 ,  C08F2500/17 ,  C08F2500/26

Abstract: A polymerization process for preparing heterophasic propylene copolymers in two or more gas-phase reactors connected in series, in the presence of a polymerization catalyst comprising a catalytic component based on a titanium compound supported on magnesium halide, the process comprising the following steps: - contacting said catalytic component with an organo-Aluminum compound at a temperature from 5°C to 30°C and a weight ratio propylene/(catalytic component) ranging from 0 to 2.0; - prepolymerizing the catalyst from A) with propylene, optionally in the presence of an inert hydrocarbon solvent; - polymerizing propylene, optionally with an another -olefin comonomer in an amount lower than 15% by weight, to prepare a semicrystalline polymer component; - successively copolymerizing two or more alpha-olefin comonomers C 2 -C 10 to prepare one or more olefin copolymers having a solubility in xylene higher than 15% by weight; the process being characterized in that the bulk density of the semi-crystalline component of step C) is adjusted at a value lower than 0.40 g/cm 3 .

Abstract translation: 在包含基于负载在卤化镁上的钛化合物的催化组分的聚合催化剂存在下，在两个或更多个串联连接的气相反应器中制备多相丙烯共聚物的聚合方法， 所述方法包括以下步骤： - 使所述催化组分与有机铝化合物在5℃至30℃的温度下接触，丙烯/（催化组分）的重量比为0至2.0; - 任选在惰性烃溶剂存在下，使来自A）的催化剂与丙烯预聚合; - 使丙烯，任选与低于15重量％的另一种α-烯烃共聚单体聚合，以制备半结晶聚合物组分; - 连续共聚两种或更多种α-烯烃共聚单体C 2 -C 10以制备一种或多种在二甲苯中的溶解度高于15重量％的烯烃共聚物; 该方法的特征在于，将步骤C）的半晶体组分的体积密度调节为低于0.40g / cm 3的值。

公开(公告)号：EP2046846B1

公开(公告)日：2011-05-25

申请号：EP07787787.6

申请日：2007-07-20

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： GOVONI, Gabriele ,  COVESSI, Massimo ,  PENZO, Giuseppe ,  CIARROCCHI, Antonio ,  DE LUCIA, Antonio

IPC: C08F297/08 ,  C08L23/10 ,  C08F210/06

CPC classification number: C08F297/08 ,  C08F210/06 ,  C08F297/083 ,  C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2308/00 ,  C08F2/001 ,  C08F2/34 ,  C08L2666/02 ,  C08L2666/06 ,  C08F210/16 ,  C08F2500/18 ,  C08F2500/17 ,  C08F2500/26

Abstract: A polymerization process for preparing heterophasic propylene copolymers in two or more gas-phase reactors connected in series, in the presence of a polymerization catalyst comprising a catalytic component based on a titanium compound supported on magnesium halide, the process comprising the following steps: - contacting said catalytic component with an organo-Aluminum compound at a temperature from 5°C to 30°C and a weight ratio propylene/(catalytic component) ranging from 0 to 2.0; - prepolymerizing the catalyst from A) with propylene, optionally in the presence of an inert hydrocarbon solvent; - polymerizing propylene, optionally with an another -olefin comonomer in an amount lower than 15% by weight, to prepare a semicrystalline polymer component; - successively copolymerizing two or more alpha-olefin comonomers C2-C10 to prepare one or more olefin copolymers having a solubility in xylene higher than 15% by weight; the process being characterized in that the bulk density of the semi-crystalline component of step C) is adjusted at a value lower than 0.40 g/cm3.

公开(公告)号：EP2046846A2

公开(公告)日：2009-04-15

申请号：EP07787787.6

申请日：2007-07-20

Applicant: Basell Poliolefine Italia S.r.l.

Inventor： GOVONI, Gabriele ,  COVEZZI, Massimo ,  PENZO, Giuseppe ,  CIARROCCHI, Antonio ,  DE LUCIA, Antonio

IPC: C08F210/06

CPC classification number: C08F297/08 ,  C08F210/06 ,  C08F297/083 ,  C08L23/10 ,  C08L23/142 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/02 ,  C08L2308/00 ,  C08F2/001 ,  C08F2/34 ,  C08L2666/02 ,  C08L2666/06 ,  C08F210/16 ,  C08F2500/18 ,  C08F2500/17 ,  C08F2500/26

Abstract: A polymerization process for preparing heterophasic propylene copolymers in two or more gas-phase reactors connected in series, in the presence of a polymerization catalyst comprising a catalytic component based on a titanium compound supported on magnesium halide, the process comprising the following steps: - contacting said catalytic component with an organo-Aluminum compound at a temperature from 5°C to 30°C and a weight ratio propylene/(catalytic component) ranging from 0 to 2.0; - prepolymerizing the catalyst from A) with propylene, optionally in the presence of an inert hydrocarbon solvent; - polymerizing propylene, optionally with an another -olefin comonomer in an amount lower than 15% by weight, to prepare a semicrystalline polymer component; - successively copolymerizing two or more alpha-olefin comonomers C2-C10 to prepare one or more olefin copolymers having a solubility in xylene higher than 15% by weight; the process being characterized in that the bulk density of the semi-crystalline component of step C) is adjusted at a value lower than 0.40 g/cm3.