公开(公告)号：DE4012239A1

公开(公告)日：1991-10-17

申请号：DE4012239

申请日：1990-04-14

Applicant: BASF AG

Inventor： DE GRAVE ISIDOOR DR ,  FISCHER JOACHIM DR ,  KOEGEL WOLFRAM ,  TATZEL HERMANN ,  GRAALMANN ONNO DR ,  KERTH JUERGEN DR ,  WERNER RAINER ALEXANDER DR

IPC: C08J9/14 ,  C08J9/16 ,  C08J9/18 ,  C08L23/14 ,  B29C67/20

Abstract: Novel foams having a density of from 0.01 to 0.1 g/cm3, based on a copolymer comprising ethylene, propylene and a C4- to C8- alpha -olefin, and having a torsion modulus of from 100 to 800 N/mm2 have high tensile, compressive and flexural strengths and at the same time high elongation at break.

公开(公告)号：AT66005T

公开(公告)日：1991-08-15

申请号：AT88114424

申请日：1988-09-03

Applicant: BASF AG

Inventor： ZOLK RALF DR ,  KERTH JUERGEN DR ,  HEMMERICH RAINER DR

IPC: C08F4/58 ,  C08F4/60 ,  C08F4/64 ,  C08F10/06

公开(公告)号：AT65508T

公开(公告)日：1991-08-15

申请号：AT88114754

申请日：1988-09-09

Applicant: BASF AG

Inventor： KERTH JUERGEN DR ,  ZOLK RALF DR ,  HEMMERICH RAINER DR

IPC: C08F4/58 ,  C08F4/60 ,  C08F4/64 ,  C08F4/658 ,  C08F10/00 ,  C08F10/06

公开(公告)号：DE4001157A1

公开(公告)日：1991-07-18

申请号：DE4001157

申请日：1990-01-17

Applicant: BASF AG

Inventor： SCHWAGER HARALD DR ,  KERTH JUERGEN DR ,  ZOLK RALF DR ,  KOELLE PETER DR ,  WERNER RAINER DR

IPC: C08F2/34 ,  C08F4/642 ,  C08F297/08

Abstract: Propylene-ethylene copolymers (I) are claimed; (I) are obtd. by 2-stage, gas-phase polymerisation in an agitated solid bed, with a Ziegler-Natta catalyst system contg. Ti-contg. solid components and Al cpd. as co-catalyst; process comprises (i) polymerisation of propylene at 20-40 bar, 60-90 deg.C and a residence time of 1-5 hrs., to give 0.05-2 kg PP/mmol Al cpd., then (ii) polymerisation of a mixt. of propylene and ethylene (ratio of partial pressures P:E = (0.5:1):(5:11) at 5-30 bar (at least 7 bar below the pressure in stage (i), 30-100 deg.C and a residence time of 1-5 hrs.; (a) the wt. ratio between the monomers reacted in stages (i) and (ii) is (2.5:1)-(20:1), or (b) (ii) polymerisation is carried out in the presence of a 1-8C alkanol (II), in which case the above wt. ratio (1:1)-(20:1). The above process is claimed as such. Pref., (II) is a 1-4C alkanol. USE/ADVANTAGE - Useful for the prodn. of film, tubing, coatings, fibre, hollow mouldings, injection moulded articles and moulded pts. for vehicles. Film and moulded prods. produced from (I) are claimed as such. Provides EP copolymers (I) with good rigidity, improved free flowing properties, a satisfactory level of notch impact strength, high bulk density and a low content of catalyst residues.

公开(公告)号：AT62697T

公开(公告)日：1991-05-15

申请号：AT88106087

申请日：1988-04-16

Applicant: BASF AG

Inventor： KERTH JUERGEN DR ,  ZOLK RALF DR ,  WERNER RAINER ALEXANDER DR ,  SCHWEIER GUENTHER DR

IPC: C08F4/58 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C08F10/06

公开(公告)号：DE3730022A1

公开(公告)日：1989-03-16

申请号：DE3730022

申请日：1987-09-08

Applicant: BASF AG

Inventor： ZOLK RALF DR ,  KERTH JUERGEN DR ,  HEMMERICH RAINER DR

IPC: C08F4/58 ,  C08F4/60 ,  C08F4/64 ,  C08F10/06

公开(公告)号：ES2100581T3

公开(公告)日：1997-06-16

申请号：ES94100352

申请日：1994-01-12

Applicant: BASF AG

Inventor： MARCZINKE BERND LOTHAR DR ,  MUELLER HANS-JOACHIM DR ,  KERTH JUERGEN DR ,  KLIMESCH ROGER DR

IPC: C07C2/34 ,  C08F4/642

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：DE19525178A1

公开(公告)日：1997-01-16

申请号：DE19525178

申请日：1995-07-11

Applicant: BASF AG

Inventor： FISCHER DAVID DR ,  LANGHAUSER FRANZ DR ,  KERTH JUERGEN DR ,  SCHWEIER GUENTHER DR ,  BRINTZINGER HANS-HERBERT PROF ,  SCHMIDT KATRIN

IPC: C07F17/00 ,  C07F19/00 ,  C07B55/00

Abstract: The invention concerns a process for converting the achiral meso form of an ansa-metallocene complex into the chiral racemic form, the conversion being carried out photochemically in the presence of a chiral auxiliary reagent.

公开(公告)号：ES2091837T3

公开(公告)日：1996-11-16

申请号：ES91111280

申请日：1991-07-06

Applicant: BASF AG

Inventor： SCHWAGER HARALD DR ,  MUEHLENBERND THOMAS DR ,  MARCZINKE BERND LOTHAR DR ,  KERTH JUERGEN DR ,  MUELLER HANS-JOACHIM DR

IPC: C08F8/42 ,  C08F8/46 ,  C08F255/02

Abstract: Propylene copolymers which contain up to 35% by weight of other C2- to C10-alk-1-enes and are grafted with alpha , beta -ethylenically unsaturated carboxylic acids or carboxylic acid derivatives can be obtained by reacting the monomer to be grafted with a propylene copolymer at a pressure of from 1 to 500 bar, where from 0.01 to 1.0% by weight, based on the propylene copolymer, of the monomer to be grafted is added to the molten propylene copolymer in the absence of an initiator which decomposes to form free radicals, and the grafting reaction is carried out at a temperature of from 210 to 350 DEG C. The propylene copolymers according to the invention can be converted into crosslinked or crosslinkable propylene copolymers by admixing with organic crosslinking agents.