公开(公告)号：EP0721475B1

公开(公告)日：1997-04-23

申请号：EP94927642.2

申请日：1994-09-23

申请人： BASF AKTIENGESELLSCHAFT

发明人： MÜLLER, Hans-Joachim ,  WENDEROTH, Bernd ,  BERGER, Albin ,  LITTMANN, Dieter ,  KLIMESCH, Roger ,  OPPENLÄNDER, Knut ,  MARCZINKE, Bernd, Lothar ,  RÜHL, Thomas ,  HEIDER, Marc

IPC分类号： C08F210/02

CPC分类号： C10L1/2366 ,  C08F210/02 ,  C10L1/2368 ,  C08F218/04 ,  C08F220/34 ,  C08F226/06 ,  C08F220/00

摘要： Ethylene-based copolymers suitable as viscosity improvers for petroleum distillates of a) 50 to 94 wt. % ethylene; b) 3 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c) 3 to 20 wt. % one or more aminoalkylene acrylates of general formula (I) in which R1 is hydrogen or methyl, the radicals R?2 and R3¿ may be the same or different and stand for hydrogen or a C¿1?-C6 alkyl radical and A?1¿ is a straight-chained or branched C¿2?-C10 alkylene radical; and d) 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a) to c), in which such copolymers are excluded in which monomer b) is vinyl acetate and have a number average molecular weight of 5000 to 50000; or of a') 50 to 95.5 wt. % ethylene; b') 4 to 30 wt. % one or more vinyl esters of C2-C6 monocarboxylic acids; c') 0.5 to 20 wt. % one or more vinyl imidazoles of general formula (II) in which the radicals R?4, R5 and R6¿ may be the same or different and are hydrogen or a C¿1?-C6 alkyl radical, or 0.5 to 20 wt. % one or more aminoalkyl vinyl ethers of general formula (III) in which the substituents are: R?7, R8: C¿1-C6 alkyl; R?9, R10, R11¿: hydrogen or C¿1?-C6 alkyl; A?2: C¿2-C6 alkylene; and d') 0 to 10 wt. % one or more monomers which can be copolymerised with monomers a') to c'). The invention also relates to the use of these copolymers as viscosity improvers for petroleum middle distillates and to pretroleum distillates containing them.

公开(公告)号：EP0603232B1

公开(公告)日：1996-04-10

申请号：EP92918593.2

申请日：1992-09-02

申请人： BASF Aktiengesellschaft

发明人： LITTMANN, Dieter ,  EVERTZ, Kaspar ,  SCHLUND, Rueger ,  MUEHLENBERND, Thomas ,  KONRAD, Rainer ,  KLIMESCH, Roger ,  KERTH, Juergen ,  SCHWEIER, Guenther

IPC分类号： C08F10/06 ,  C08F4/602

CPC分类号： C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F2/06 ,  C08F2500/02 ,  C08F210/16

摘要： 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° C, using as catalyst a metallocene catalyst system.

公开(公告)号：EP0603232A1

公开(公告)日：1994-06-29

申请号：EP92918593.0

申请日：1992-09-02

申请人： BASF Aktiengesellschaft

发明人： LITTMANN, Dieter ,  EVERTZ, Kaspar ,  SCHLUND, Rueger ,  MUEHLENBERND, Thomas ,  KONRAD, Rainer ,  KLIMESCH, Roger ,  KERTH, Juergen ,  SCHWEIER, Guenther

IPC分类号： C08F4 ,  C08F10 ,  C08F110 ,  C08F210

CPC分类号： C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F2/06 ,  C08F2500/02 ,  C08F210/16

摘要： Procédé pour la fabrication d'homopolymérisats du propylène ou de copolymérisats du propylène avec d'autres oléfines ou leurs mélanges, dans lequel on polymérise à des pressions de 100 à 3000 bar et à des températures de 100 à 330° C et on utilise comme catalyseur un système catalyseur métallocène.