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公开(公告)号：DE4205932A1
公开(公告)日：1993-09-02
申请号：DE4205932
申请日：1992-02-27
Applicant: BASF AG
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公开(公告)号：DE4204260A1
公开(公告)日：1993-08-19
申请号：DE4204260
申请日：1992-02-13
Applicant: BASF AG
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公开(公告)号：DE4130299A1
公开(公告)日：1993-03-18
申请号：DE4130299
申请日：1991-09-12
Applicant: BASF AG
Inventor： LITTMANN DIETER DR , EVERTZ KASPAR DR , SCHLUND RUEGER DR , MUEHLENBERND THOMAS DR , KONRAD RAINER DR , KLIMESCH ROGER DR , KERTH JUERGEN DR , SCHWEIER GUENTHER DR
IPC: C08F4/60 , C08F4/602 , C08F4/642 , C08F4/6592 , C08F4/68 , C08F10/00 , C08F10/02 , C08F10/06 , C08F110/06 , C08F210/06
Abstract: A process is disclosed for producing homopolymers of propylene or copolymers of propylene with other olefins or their mixtures. Polymerisation is carried out under pressures from 100 to 3000 bars and at temperatures from 100 to 330 DEG C, using as catalyst a metallocene catalyst system.
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Patent Agency Ranking
公开(公告)号：AT76881T
公开(公告)日：1992-06-15
申请号：AT87117350
申请日：1987-11-25
Applicant: BASF AG
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45.发明专利
公开(公告)号：AT70541T
公开(公告)日：1992-01-15
申请号：AT87107541
申请日：1987-05-23
Applicant: BASF AG
Inventor： KONRAD RAINER DR , MUELLER-MALL RUDOLF , SCHWEIER GUENTHER DR
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公开(公告)号：DE3838491A1
公开(公告)日：1990-05-17
申请号：DE3838491
申请日：1988-11-12
Applicant: BASF AG
Inventor： SAIVE ROLAND DR , FUNK GUIDO DR , SCHMIDT-THUEMMES JUERGEN DR , KONRAD RAINER DR , BAUER PETER
IPC: C08F6/00 , C08F2/00 , C08F2/14 , C08F2/34 , C08F4/68 , C08F6/06 , C08F8/00 , C08F8/14 , C08F10/02 , C08F210/16
Abstract: The invention relates to a process for the preparation of low-pressure ethylene polymers by polymerising the monomers in the presence of a Ziegler catalyst system, in which process the solid ethylene polymer obtained is reacted in the melt with additives which are able to form acids by esterification. The ester-forming additives are preferably epoxide compounds.
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公开(公告)号：DE3640803A1
公开(公告)日：1988-06-09
申请号：DE3640803
申请日：1986-11-28
Applicant: BASF AG
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公开(公告)号：DE3609828A1
公开(公告)日：1987-09-24
申请号：DE3609828
申请日：1986-03-22
Applicant: BASF AG
Inventor： KONRAD RAINER DR , WARZELHAN VOLKER DR , GROPPER HANS DR , SCHWEIER GUENTHER DR
Abstract: Ethene polymers are prepared by Phillips catalysis using (1) a supported catalyst which is loaded with chromium and titanium and (2) a co-catalyst, (1) having been obtained by preparing (1.1) a chromium- and titanium-loaded catalyst intermediate from (1.1.a) a silicate carrier material, (1.1.b) a selected chromium compound and (1.1.c) a selected titanium compound and then (1.2) heating said catalyst intermediate in an oxygen-containing gas stream, the (1) used having been obtained by, in general terms, (1.1) preparing in the first stage (1.1.1) a suspension from (1.1.1.1) a finely divided silicate carrier material and (1.1.1.2) a liquid alkane, (1.1.2) then (1.1.2.1) combining the suspension resulting from (1.1.1.) with (1.1.2.2.) a finely divided chromium trioxide, (1.1.3) thereupon (1.1.3.1) combining the suspension obtained from (1.1.2) with (1.1.3.2) an alkanol, (1.1.4) thereafter (1.1.4.1) combining the suspension formed in (1.1.3) with (1.1.4.2) a titanium compound of the formula Ti(OR)4, where R is alkyl, aryl or cycloalkyl, and (1.1.5) finally evaporating the suspension obtained in (1.1.4) to dryness, and then (1.2) in the second stage first (1.2.1) treating the catalyst intermediate obtained in the first state (1.1) with a nitrogen stream, thereupon (1.2.2) heating the intermediate obtained in (1.2.1) in an oxygen-containing gas stream, and finally (1.2.3) treating the intermediate obtained in (1.2.2) with a nitrogen stream; and as (2) with an alkyllithium.
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