公开(公告)号：JPH1171415A

公开(公告)日：1999-03-16

申请号：JP18748298

申请日：1998-07-02

Applicant: BASF AG

Inventor： KERSTING MEINOLF DR ,  LUTZ GERALD DR ,  LANGHAUSER FRANZ DR

IPC: B01J19/18 ,  C08F2/00 ,  C08F2/34 ,  C08F2/38 ,  C08F4/648 ,  C08F4/659 ,  C08F10/00 ,  C08F10/06 ,  C08F297/08

Abstract: PROBLEM TO BE SOLVED: To provide a polymerization method of 2-8C alk-1-ene with a Ziegler- Natta catalyst composition for reducing or completely inhibiting coagulation the formation of deposition and sludge of the polymer particles. SOLUTION: A 2-8C 1-alkene is polymerized in the presence of a Ziegler- Natta catalyst composition in a cascade comprising at least two reactors. In a reactor 1, which may be linked to one or a plurality of reactors in the upstream, homopolymer or copolymer of l-alkenes is formed. The polymerization reaction mixture is discharged form the reactor l, and transferred to the subsequent reactor 2. The polymerization in the reactor 2 and the reactors that may be linked to the reactor 2 is carried out in the presence of a liquid or dissolved controlling agent for control the catalytic activity. The controlling agent is discharged from the reactor l and then added to the polymerization reaction mixture prior to being introduced in the reactor 2.

公开(公告)号：JPH1171432A

公开(公告)日：1999-03-16

申请号：JP14730498

申请日：1998-05-28

Applicant: BASF AG

Inventor： KERSTING MEINOLF DR ,  SCHOENE WERNER ,  LANGHAUSER FRANZ DR

IPC: C08F2/34 ,  C08F4/02 ,  C08F4/642 ,  C08F4/654 ,  C08F4/658 ,  C08F10/00 ,  C08F210/06 ,  C08F210/16

Abstract: PROBLEM TO BE SOLVED: To obtain a copolymer having high rigidity and a low chlorine content, by copolymerizing propylene with ethylene and a specified alkene in the absence of a liquid reaction medium under conditions in which the ratio among the partial pressures of the respective monomers is specified. SOLUTION: Propylene is copolymerized with ethylene and a 4-10 C 1-alkene in the absence of a liquid reaction medium under conditions in which the ratio of the partial pressure of propylene to that of ethylene is 20:1 to 100:1, and the ratio of the partial pressure of the 1-alkene to that of the ethylene is 2.5:1 to 20:1 in the presence of a Ziegler/Natta catalyst containing a titanium- containing solid component containing a halogen-containing magnesium, an electron donor and an inorganic oxide carrier, an aluminum compound and an electron donor mixture in a gas phase under a pressure of 15-40 bar at a temp. of 50-100 deg.C for 0.5-5 hr to obtain a random propylene copolymer having a number-average molecular weight of 20,000-50,000, a melt flow index of 0.1-100 g/10 min and a melting point (DSC) of 135 deg.C or below.

公开(公告)号：DE19506286A1

公开(公告)日：1996-08-29

申请号：DE19506286

申请日：1995-02-23

Applicant: BASF AG

Inventor： FISCHER JOACHIM DR ,  GRAVE ISIDOOR DE DR ,  FINK GUENTER ,  HUNGENBERG KLAUS-DIETER DR ,  KERSTING MEINOLF DR

IPC: C08F2/34 ,  C08F210/06 ,  C08F210/16 ,  C08J9/16 ,  C08L23/10 ,  C08L23/16 ,  C08F4/646 ,  C08J9/14 ,  C08J9/30

Abstract: The invention concerns statistical propylene copolymers in which 0.1-20 wt.% is accounted for by polymerisation-incorporated ethylene and the xylene-soluble components (XL) satisfy the inequation (I) XL >/= 3,8 + 1,2 [C2], in which [C2] represents the proportion by weight of the polymerisation-incorporated ethylene; and the proportion in wt.% of isotactic triads [mm] or isotactic pentads [mmmm] as determined by C nuclear magnetic resonance spectroscopy lies within the range determined by the inequations (IIa) 96.0 wt.% >/= [mm] and (IIb) 94.0 wt.% >/= [mmmm]. The statistical propylene copolymers are suitable for use as foam particles and moulded parts.

公开(公告)号：DE59205285D1

公开(公告)日：1996-03-21

申请号：DE59205285

申请日：1992-08-08

Applicant: BASF AG

Inventor： KERSTING MEINOLF DR ,  MUELLER PATRIK DR ,  SCHWAGER HARALD DR ,  KOELLE PETER DR ,  WEBER SIEGFRIED DR ,  MUELLER HANS-JOACHIM DR

IPC: C08F4/02 ,  C08F4/647 ,  C08F10/00

公开(公告)号：DE4316049A1

公开(公告)日：1993-12-09

申请号：DE4316049

申请日：1993-05-13

Applicant: BASF AG

Inventor： KERSTING MEINOLF DR ,  HUNGENBERG KLAUS-DIETER DR ,  MUELLER PATRIK DR ,  KOELLE PETER DR

IPC: C08F2/34 ,  C08F4/642 ,  C08F4/649 ,  C08F210/06 ,  C08L23/14

Abstract: Copolymers of propylene (prop) and hex-1-ene (hex) are claimed (I). (I) are obtd. by copolymerisation at 10-50 br and 50-100 deg. C for 1-5 hrs. (mean residence time) in the presence of a Ziegler-Natta catalyst system comprising a solid, Ti-contg. component (A), an Al component (B) and an electron donor (C). The temp. at the given pressure is high enough to prevent condensn. of the monomer mixt. in the gas space and the ratio of partial pressures (prop):(hex) = (1:1)-(120:1). USE/ADVANTAGE - Enables the prodn. of propylene/hex-1-ene copolymers (I), which are useful for the mfr. of film (e.g, for use in the food industry), tubes, coatings, fibres hollow mouldings, injection moulded prods. and moulded prods. for use in cars. (I) are statistical copolymers with mol. wt of 10,000-500,000 and MFI 0.1-100 (pref. 0.2-50) g/10 mins., esp. contg. 0.1-10 wt. % hexene and with a low heptane-solubles content. The claims also include films and moulded prods. made from (I).

公开(公告)号：DE59502141D1

公开(公告)日：1998-06-18

申请号：DE59502141

申请日：1995-02-24

Applicant: BASF AG

Inventor： ZOLK RALF DR ,  WERNER RAINER ALEXANDER DR ,  KERSTING MEINOLF DR

IPC: C08F4/642 ,  C08K3/34 ,  C08L23/12

公开(公告)号：AT166094T

公开(公告)日：1998-05-15

申请号：AT95102636

申请日：1995-02-24

Applicant: BASF AG

Inventor： ZOLK RALF DR ,  WERNER RAINER ALEXANDER DR ,  KERSTING MEINOLF DR

IPC: C08F4/642 ,  C08K3/34 ,  C08L23/12

公开(公告)号：DE19545497A1

公开(公告)日：1997-06-12

申请号：DE19545497

申请日：1995-12-06

Applicant: BASF AG

Inventor： HUEFFER STEPHAN DR ,  KERSTING MEINOLF DR ,  WERNER RAINER ALEXANDER DR ,  SCHERER GUENTER DR ,  SEELERT STEFAN DR ,  MUELLER PATRIK DR ,  KERTH JUERGEN DR

IPC: C08F4/02 ,  C08F4/642 ,  C08F4/654 ,  C08F4/656 ,  C08F10/00 ,  C08F110/06 ,  C08L23/12 ,  D01F6/06

Abstract: The Ziegler-Natta type catalyst system (I) comprises as active constituents: (a) a Ti-contg. solid component comprising a Ti cpd., a Mg cpd., a halogen, silica gel as support and a carboxylic ester as electron donor; (b) an Al cpd. as cocatalyst; and opt (c) a further electron donor cpd. as a further cocatalyst, where the silica gel has a mean particle dia. of 5-200 mu m, a mean particle dia. of the prim. particles of 1-10 mu m, and voids or channels having a mean dia. of 1-10 mu m whose macroscopic proportion in the total particle is 5-20 vol.%. Also claimed are: (1) prodn. of (I) comprising reacting (a), (b) and opt. (c) at 0-150 deg C and 1-100 bar pressure; (2) prepn. of propylene polymers, comprising polymerising propylene and opt. comonomers at 20-150 deg C and 1-100 bar pressure in the presence of (I); and (3) a propylene polymer, partic. a homopolymer, so obtd.

公开(公告)号：DE4128134A1

公开(公告)日：1993-02-25

申请号：DE4128134

申请日：1991-08-24

Applicant: BASF AG

Inventor： KERSTING MEINOLF DR ,  MUELLER PATRIK DR ,  SCHWAGER HARALD DR ,  KOELLE PETER DR ,  WEBER SIEGFRIED DR ,  MUELLER HANS-JOACHIM DR

IPC: C08F4/02 ,  C08F4/647 ,  C08F10/00

公开(公告)号：ES2086143T5

公开(公告)日：2000-04-01

申请号：ES93102307

申请日：1993-02-15

Applicant: BASF AG

Inventor： KERSTING MEINOLF DR ,  KERTH JURGEN DR ,  HUNGENBERG KLAUS-DIETER DR ,  MULLER PATRIK DR ,  KOELLE PETER DR

IPC: C08F4/658 ,  C08F2/34 ,  C08F2/40 ,  C08F4/60 ,  C08F4/642 ,  C08F10/00 ,  C08F210/16 ,  C08F297/08 ,  D01F6/30

Abstract: >A process for the preparation of propylene-ethylene copolymers by two-step polymerisation from the gas phase in an agitated fixed bed by means of a Ziegler-Natta catalyst system which, in addition to a titanium-containing solids component, also contains, as cocatalyst, an aluminium compound, where the Ziegler-Natta catalyst system used is one which, after the reaction of the titanium-containing solids component with the cocatalyst, is deactivated by reaction with carbon dioxide.