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公开(公告)号：ES2056256T3
公开(公告)日：1994-10-01
申请号：ES90101949
申请日：1990-02-01
Applicant: BASF AG
Inventor： KERTH JUERGEN DR , SCHWAGER HARALD DR , ZOLK RALF DR
IPC: C08F2/34 , C08F10/00 , C08F210/06 , C08F297/08
Abstract: A process for the preparation of propylene-ethylene copolymers in an agitated fixed bed in which propylene is polymerised from the gas phase, initially in a first polymerisation zone at a pressure of from 20 to 40 bar and at a temperature of from 60 to 90 DEG C with feed of a Ziegler-Natta catalyst system, and, in a second polymerisation zone, at a pressure of from 7 to 35 bar and a temperature of from 40 to 70 DEG C, a mixture of olefins is polymerised onto the finely divided polymer discharged from the first polymerisation zone, is characterised in that, in the second polymerisation zone, a mixture of propylene, ethylene and a further alpha -olefin having 4 to 10 carbon atoms is polymerised on at a ratio between the partial pressures of propylene and ethylene in the range of from 100 : 20 to 100 : 120 and at a ratio between the partial pressures of propylene and the alpha -olefin in the range from 100 : 1 to 100 : 20, the pressure in the second polymerisation zone is chosen to be at least 5 bar below the pressure in the first polymerisation zone, and the weight ratio between the monomers reacted in the first and second polymerisation zones is such that it is in a range between 100 : 10 and 100 : 50.
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公开(公告)号：DE4308591A1
公开(公告)日：1994-09-22
申请号：DE4308591
申请日：1993-03-18
Applicant: BASF AG
Inventor： MARCZINKE BERND LOTHAR DR , MUELLER PATRIK DR , KERTH JUERGEN DR
IPC: C08F8/00 , C08F8/46 , C08F255/02 , C08J5/18 , C09J151/06 , D01F6/30 , C08L51/06
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公开(公告)号：DE4308587A1
公开(公告)日：1994-09-22
申请号：DE4308587
申请日：1993-03-18
Applicant: BASF AG
Inventor： MARCZINKE BERND LOTHAR DR , KERTH JUERGEN DR
IPC: C08F255/02 , C09J151/06 , C08L51/06 , D01F6/30
Abstract: Randomly distributed propylene copolymers containing from 0.1 to 15 % by weight of copolymerised C2-C10-alk-1-enes and which have been grafted by means of alpha , beta -ethylenically unsaturated carboxylic acids or carboxylic acid derivatives and which are obtainable by reacting the graft monomer with the randomly distributed propylene copolymer at pressures of from 1 to 300 bar, where, in the presence of from 0.005 to 0.5 % by weight of an initiator which decomposes to form free radicals, from 0.01 to 1.0 % by weight of the monomer to be grafted on, where both concentrations are based on the randomly distributed propylene copolymer, is mixed with the molten, randomly distributed propylene copolymer, and the grafting reaction is carried out at from 200 to 350 DEG C.
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公开(公告)号：DE59006212D1
公开(公告)日：1994-07-28
申请号：DE59006212
申请日：1990-10-29
Applicant: BASF AG
Inventor： KOELLE PETER DR , SCHWAGER HARALD DR , KERTH JUERGEN DR , ZOLK RALF DR
Abstract: Catalyst systems of the Ziegler-Natta catalyst type, containing, as active constituents, a) a titanium-containing solid component which contains titanium, magnesium, halogen and a carboxylic acid ester, and, as cocatalyst, b) an aluminium compound and c) optionally further electron-donor compounds, characterised in that they contain, as the carboxylic acid ester in the solid component a), an ester of a benzophenone-2-carboxylic acid of the formula I in which R is a hydrogen atom, a C1-C15-alkyl group or a halogen atom. These catalyst systems are particularly suitable for the preparation of polypropylene and copolymers of propylene with minor amounts of other alpha , beta -unsaturated olefinic compounds having 2 to 12 carbon atoms.
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公开(公告)号：DE58907214D1
公开(公告)日：1994-04-21
申请号：DE58907214
申请日：1989-08-19
Applicant: BASF AG
Inventor： ZOLK RALF DR , KERTH JUERGEN DR , HEMMERICH RAINER DR
Abstract: The invention relates to the preparation of polymers of propene by means of a Ziegler-Natta catalyst system comprising (1) a titanium component which is based on a finely divided, shaping silica gel and contains titanium, magnesium, chlorine and a benzenecarboxylic acid derivative, (2) an aluminium component and (3) a silane component, characterised in that the titanium component (1) used is obtained by (1.1) first (I) preparing a carrier from (Ia) a silica gel, (Ib) an organomagnesium compound, (Ic) a gaseous chlorinating agent and (Id) a certain phthalic acid derivative, by (1.1.1) first reacting (Ia) with (Ib), (1.1.2) then passing (Ic) into the product from (1.1.1) and introducing the phthalic acid derivative (Id) and isolating (I), (1.2) then preparing a solid-phase intermediate from (I), (II) an alkanol, and (III) titanium tetrachloride by (1.2.1) first reacting (I) with (II), (1.2.2) subsequently introducing (III) into the product from (1.2.1), (1.3) then extracting the solid-phase product from (1.2) with titanium tetrachloride or a mixture of titanium tetrachloride and ethylbenzene, and (1.4) finally washing the solid-phase product from (1.3) with a liquid hydrocarbon.
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Patent Agency Ranking
公开(公告)号：DE59004030D1
公开(公告)日：1994-02-10
申请号：DE59004030
申请日：1990-10-26
Applicant: BASF AG
Inventor： SCHWAGER HARALD DR , KOELLE PETER DR , KERTH JUERGEN DR , ZOLK RALF DR
Abstract: Catalyst systems of the Ziegler-Natta catalyst type, containing, as active constituents, a) a titanium-containing solid component which contains titanium, magnesium, halogen and a carboxylic acid ester, and, as cocatalyst, b) an aluminium compound and c) optionally further electron-donor compounds, characterised in that they contain in the solid component, as the carboxylic acid ester, a diester of a carboxylic acid of the formula Ia or Ib in which R , R , R and R are identical or different and are hydrogen, C1-C15-alkyl, C7-C15-alkylaryl or 5- to 7-membered cycloalkyl, which may itself carry C1- to C10-alkyl groups. These catalyst systems are particularly suitable for the preparation of polypropylene and copolymers of propylene with minor amounts of other alpha , beta -unsaturated olefinic compounds having 2 to 12 carbon atoms.
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公开(公告)号：DE58906250D1
公开(公告)日：1994-01-05
申请号：DE58906250
申请日：1989-09-21
Applicant: BASF AG
Inventor： FUNK GUIDO DR , WEBER SIEGFRIED DR , KERTH JUERGEN DR , HEMMERICH RAINER DR
Abstract: The invention relates to a process for the preparation of ultrahigh-molecular-weight ethylene polymers in the gas phase in an agitated bed of particulate polymer by continuously introducing the appropriate monomers into a polymerisation system at 60 to 120 DEG C and at from 5 to 60 bar in the presence of a reaction product of a titanium-containing catalyst and an antistatic, and an ultrahigh-molecular-weight ethylene polymer prepared by the above process.
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公开(公告)号：DE4206169A1
公开(公告)日：1993-09-02
申请号：DE4206169
申请日：1992-02-28
Applicant: BASF AG
Inventor： KERSTING MEINOLF DR , HUNGENBERG KLAUS-DIETER DR , KERTH JUERGEN DR
Abstract: A process for polymerizing C3-C10-alk-1-enes with the aid of a Ziegler-Natta catalyst system. A titanic solid component, which contains a compound of titanium, magnesium, a halogen and an electron donor compound (I), is first made to react with an aluminium compound and an additional electron donor compound (II). The reaction mixture is then inactivated by reaction with carbon dioxide. The catalyst system thus produced is then used, together with an aluminium compound, to polymerize C3-C10-alk-1-enes at temperatures of between 20 and 150 DEG C and pressures of between 1 and 100 bar, no further quantities of the electron donor compound (II) being needed for said polymerization.
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公开(公告)号：DE4130353A1
公开(公告)日：1993-03-18
申请号：DE4130353
申请日：1991-09-12
Applicant: BASF AG
Inventor： KERSTING MEINOLF DR , KERTH JUERGEN DR , HUNGENBERG KLAUS-DIETER DR , KOELLE PETER DR
Abstract: The present invention relates to a novel process for the preparation of Ziegler-Natta catalyst systems containing, as active constituents, a) a titanium-containing solid component which contains titanium, magnesium, halogen and a carboxylic ester and, as cocatalyst, b) an aluminium compound and c) optionally a further electron-donor compound. The invention furthermore relates to Ziegler-Natta catalyst systems obtainable by this process, to the preparation of polymers of propylene with the aid of these catalyst systems, to polymers obtainable by this preparation method, and to films and mouldings made from these polymers.
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公开(公告)号：DE4019456A1
公开(公告)日：1992-01-02
申请号：DE4019456
申请日：1990-06-19
Applicant: BASF AG
Inventor： SCHWAGER HARALD DR , KERTH JUERGEN DR , SCHWEIER GUENTHER DR
IPC: C08L53/00
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