公开(公告)号：JPH1060018A

公开(公告)日：1998-03-03

申请号：JP14438297

申请日：1997-06-03

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  AUMUELLER ALEXANDER DR ,  KOCH ANDREAS DR ,  DECKERS ANDREAS DR ,  SCHAUS ECKARD DR ,  KLIMESCH ROGER DR ,  KINGMA AREND JOUKE DR ,  WEBER WILHELM DR

IPC: C08F2/34 ,  C07B63/04 ,  C07C7/20 ,  C07C11/04 ,  C07C51/50 ,  C08F2/38 ,  C08F2/40 ,  C08F10/00 ,  C08F210/02

Abstract: PROBLEM TO BE SOLVED: To enable precipitate formation to be diminished due to too rapid polymerization of the subject monomer during its compression by conducting the compression in the presence of a sterically hindered amine derivative. SOLUTION: An ethylene-based unsaturated monomer is compressed under a pressure of 200-5,000 bar in the absence of any polymerization initiator but in the presence of a sterically hindered amine derivative. In this case, it is preferable that 0.0001-0.1wt.%, based on the monomer, of an N-oxyl compound of e.g. the formula (R is an alkyl, cycloalkyl, aralkyl, etc.) in combination with the amine derivative, the temperature during the compression is 20-140 deg.C, and an auxiliary stabilizer is used.

公开(公告)号：DE19647564A1

公开(公告)日：1998-05-20

申请号：DE19647564

申请日：1996-11-18

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  SCHAUS ECKARD DR ,  KLIMESCH ROGER DR ,  WEBER WILHELM DR

IPC: C08F2/00 ,  C08F4/38 ,  C08F210/02 ,  C08F220/04 ,  C08F222/02 ,  D21H19/58 ,  C08J3/03 ,  C09J5/02 ,  C05G3/00 ,  C05G3/10

Abstract: A copolymer (I) of ethylene and an alpha , beta -unsaturated carboxylic acid is prepared at 50-250 degrees C and 500-5000 bar in a stirred autoclave (l:d ratio greater than 5:1). The monomer mixture is added in at least two portions. The initial portion contains 20-90% less alpha , beta -unsaturated carboxylic acid than later additions and a peroxide polymerisation initiator or mixture of initiators with a low decomposition temperature.

公开(公告)号：DE19622441A1

公开(公告)日：1997-12-11

申请号：DE19622441

申请日：1996-06-05

Applicant: BASF AG

Inventor： SUTORIS HEINZ FRIEDRICH DR ,  AUMUELLER ALEXANDER DR ,  KOCH ANDREAS DR ,  DECKERS ANDREAS DR ,  SCHAUS ECKARD DR ,  KLIMESCH ROGER DR ,  KINGMA AREND JOUKE DR ,  WEBER WILHELM DR

IPC: C08F2/34 ,  C07B63/04 ,  C07C7/20 ,  C07C11/04 ,  C07C51/50 ,  C08F2/38 ,  C08F2/40 ,  C08F10/00 ,  C08F210/02 ,  C08F210/06 ,  C08F220/06 ,  C08F236/06 ,  C08L23/06 ,  C08L23/12 ,  C08L23/20 ,  C08L33/02 ,  C08L23/02

Abstract: A process is claimed for the compression of ethylenic monomers to a pressure of 200-5000 bar, carried out in the absence of a polymerisation initiator and in the presence of a sterically hindered amine derivative (I). Also claimed is (i) a process for the production of copolymers by compressing the comonomers as above and then polymerising at 50-350 degrees C with addition of initiator, and (ii) copolymers obtained by this process.

公开(公告)号：DE19737306A1

公开(公告)日：1999-03-04

申请号：DE19737306

申请日：1997-08-27

Applicant: BASF AG

Inventor： GONIOUKH ANDREI DR ,  DECKERS ANDREAS DR ,  SCHAUS ECKARD DR ,  KLIMESCH ROGER DR ,  WEBER WILHELM DR

IPC: C08F4/629 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/64 ,  C08F4/6592 ,  C08F4/68 ,  C08F10/00 ,  C08F110/02 ,  C08F210/16 ,  C07F17/00

Abstract: The invention relates to a catalyst preparation suitable for the (co)polymerisation of Alk-1-enes. To obtain said preparation a metallocene complex is mixed with a C3-20-Alk-1-ene in an inert solvent and the resulting mixture is reacted in a controlled manner with a compound forming metallocene ions. The mixture obtained is diluted with an inert, non-polar, essentially aliphatic solvent. In addition, the catalyst preparation is possibly applied to a particulate substrate material.

公开(公告)号：DE19719517A1

公开(公告)日：1998-11-12

申请号：DE19719517

申请日：1997-05-09

Applicant: BASF AG

Inventor： GONIOUKH ANDREI DR ,  SCHAUS ECKARD DR ,  KLIMESCH ROGER DR ,  DECKERS ANDREAS DR ,  WEBER WILHELM DR

IPC: C08F2/06 ,  C08F4/629 ,  C08F4/642 ,  C08F4/6592 ,  C08F4/68 ,  C08F10/00 ,  C08F110/02 ,  C08F4/623 ,  C07F17/00

Abstract: The invention relates to a catalyst solution for the polymerization of alpha -olefins obtained by: reacting a metallocene compound with an activator compound, which is able to react with the metallocene compound in such a way that a ligand is displaced from the central atom and the resulting cationic complex is stabilized by a non-coordinating anion as ion pair; adding one or several alpha -olefins at a molar ratio of metallocene compound: alpha -olefins of between 1: 1 and 1: 100; and mixing the resulting product with at least 10 volume parts of an aliphatic hydrocarbon.

公开(公告)号：DE19644269A1

公开(公告)日：1998-04-30

申请号：DE19644269

申请日：1996-10-24

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  SCHAUS ECKARD DR

IPC: C08F10/02 ,  C08F210/02 ,  C08G2/26 ,  C08G2/30

Abstract: Process for preparing polyethylene waxes containing keto groups (I) by telomerisation of ethylene with aldehyde at pressures of 500-5000 bar and temperatures of 100-280 degrees C, using a mol ratio ethylene : aldehyde of 5:1 to 50:1, preferably 5:1 to 20:1 and especially 5:1 to 15:1.