公开(公告)号：NO149434C

公开(公告)日：1984-04-25

申请号：NO772309

申请日：1977-06-30

Applicant: BASF AG

Inventor： TREPTOW WOLFRAM ,  WUNSCH GERD ,  KIENER VOLKER ,  MEYER HERMANN ,  CSIZI GOTTHARD

IPC: C25B1/46 ,  C25B9/19 ,  C25B13/04 ,  C25B9/00

Abstract: In an electrolysis cell with anodes and cathodes which are provided with openings, the cathode chamber is separated from the anode chamber by a diaphragm. The latter consists of a porous layer of oxides or oxidic compounds of the elements of sub-group 4B of the periodic table, of aluminum, of the rare earths or of chromium. The diaphragm is applied to that side of one of the electrodes which faces the counter-electrode.

公开(公告)号：NO772838A

公开(公告)日：1978-02-28

申请号：NO772838

申请日：1977-08-15

Applicant: BASF AG

Inventor： BOEHN HUGO ,  TREPTOW WOLFRAM ,  WUNSCH GERD ,  KIENER VOLKER ,  MEYER HERMANN ,  CSIZI GOTTHARD

IPC: C25B11/04 ,  C25B11/06 ,  C25B11/10 ,  C25B

CPC classification number: C25B11/0478 ,  C25B11/041

公开(公告)号：CA1003954A

公开(公告)日：1977-01-18

申请号：CA183558

申请日：1973-10-17

Applicant: BASF AG

Inventor： KNELLER ECKART ,  KOESTER EBERHARD ,  WUNSCH GERD ,  DEIGNER PAUL ,  GRAW DIETER

IPC: C09D5/23 ,  C09D7/12 ,  G03G5/16 ,  G11B5/02 ,  G11B5/62 ,  G11B5/64 ,  G11B5/70 ,  G11B5/706 ,  G11B23/28

Abstract: The invention relates to a method of recording magnetic signals on magnetic recording media containing an exchange-anisoptropic material at a temperature lower than, equal to or higher than the Neel temperature of this magnetic material. After the recording has been made, the magnetic recording medium is heated to a temperature equal to, or higher than, the Neel temperature, then cooled down to a temperature below the Neel temperature and the recording temperature, following which it is provided with an indicator which betrays re-heating.

公开(公告)号：BR9307637A

公开(公告)日：1999-08-31

申请号：BR9307637

申请日：1993-12-02

Applicant: BASF AG

Inventor： STABEL UWE ,  WUNSCH GERD ,  WOERZ HELMUT ,  FRIED ANDREAS ,  KOTKAMP RUEDIGER

IPC: C07C7/00 ,  C07C7/04 ,  C07C13/465 ,  C07C15/44 ,  C07C15/46 ,  C08J11/14 ,  C08L25/02 ,  C10G7/00 ,  C10G9/00 ,  C10G70/04

Abstract: In a process for the recovery of a polymerizable useful fraction, consisting of styrene, methylstyrenes, vinyltoluenes, indene, methylindenes and fractions whose boiling points are between styrene and methylindenes, from the crack gases of a steam cracker, the sidestream of the crack gas column is divided, by means of a distillation unit, into the useful fraction and into fractions which are recycled to the crack gas column.

公开(公告)号：MX9307879A

公开(公告)日：1994-06-30

申请号：MX9307879

申请日：1993-12-13

Applicant: BASF AG

Inventor： FRIED ANDREAS ,  KOTKAMP RUEDIGER ,  STABEL UWE ,  WUNSCH GERD ,  WOERZ HELMUT

IPC: C07C7/00 ,  C07C7/04 ,  C07C13/465 ,  C07C15/44 ,  C07C15/46 ,  C08J11/14 ,  C08L25/02 ,  C10G7/00 ,  C10G9/00 ,  C10G70/04 ,  C08F212/08

Abstract: In a process for the recovery of a polymerizable useful fraction, consisting of styrene, methylstyrenes, vinyltoluenes, indene, methylindenes and fractions whose boiling points are between styrene and methylindenes, from the crack gases of a steam cracker, the sidestream of the crack gas column is divided, by means of a distillation unit, into the useful fraction and into fractions which are recycled to the crack gas column.

公开(公告)号：PL298637A1

公开(公告)日：1994-06-27

申请号：PL29863793

申请日：1993-04-19

Applicant: BASF AG

Inventor： STABEL UWE ,  WUNSCH GERD ,  WOERZ HELMUT ,  FRIED ANDREAS ,  KOTKAMP RUEDIGER

IPC: C07C7/00 ,  C07C7/04 ,  C07C13/465 ,  C07C15/44 ,  C07C15/46 ,  C08J11/14 ,  C08L25/02 ,  C10G7/00 ,  C10G9/00 ,  C10G70/04

Abstract: In a process for the recovery of a polymerizable useful fraction, consisting of styrene, methylstyrenes, vinyltoluenes, indene, methylindenes and fractions whose boiling points are between styrene and methylindenes, from the crack gases of a steam cracker, the sidestream of the crack gas column is divided, by means of a distillation unit, into the useful fraction and into fractions which are recycled to the crack gas column.

公开(公告)号：FI931712A

公开(公告)日：1994-06-15

申请号：FI931712

申请日：1993-04-15

Applicant: BASF AG

Inventor： STABEL UWE ,  WUNSCH GERD ,  WOERZ HELMUT ,  FRIED ANDREAS ,  KOTKAMP RUEDIGER

IPC: C07C7/00 ,  C07C7/04 ,  C07C13/465 ,  C07C15/44 ,  C07C15/46 ,  C08J11/14 ,  C08L25/02 ,  C10G7/00 ,  C10G9/00 ,  C10G70/04

Abstract: In a process for the recovery of a polymerizable useful fraction, consisting of styrene, methylstyrenes, vinyltoluenes, indene, methylindenes and fractions whose boiling points are between styrene and methylindenes, from the crack gases of a steam cracker, the sidestream of the crack gas column is divided, by means of a distillation unit, into the useful fraction and into fractions which are recycled to the crack gas column.

公开(公告)号：CA955880A

公开(公告)日：1974-10-08

申请号：CA130343

申请日：1971-12-16

Applicant: BASF AG

Inventor： BECK FRITZ ,  FUCHS HUGO ,  KAHR KURT ,  WUNSCH GERD

IPC: C01B21/14

公开(公告)号：DE59201249D1

公开(公告)日：1995-03-09

申请号：DE59201249

申请日：1992-04-02

Applicant: BASF AG ,  LINDE AG

Inventor： FRITZ PETER MATTHIAS ,  WALSER FRANZ ,  BOELT HEINZ ,  STABEL UWE ,  WUNSCH GERD

IPC: C07C5/32

公开(公告)号：MX9201433A

公开(公告)日：1992-10-01

申请号：MX9201433

申请日：1992-03-30

Applicant: LINDE AG ,  BASF AG

Inventor： BOELT HEINZ ,  WUNSCH GERD ,  WALSER FRANZ ,  STABEL UWE ,  FRITZ PETER MATTHIAS

IPC: C07C5/32 ,  C07B35/06