公开(公告)号：AT92906T

公开(公告)日：1993-08-15

申请号：AT89104092

申请日：1989-03-08

Applicant: DEGUSSA

Inventor： LOTZE MARION DR ,  MEHNER HANS ,  KLEINSCHMIT PETER DR

IPC: A47G19/00 ,  C03C17/10 ,  C04B41/51 ,  C04B41/88

公开(公告)号：AT90713T

公开(公告)日：1993-07-15

申请号：AT90117246

申请日：1990-09-07

Applicant: DEGUSSA

Inventor： KISS AKOS DR ,  SPEER DIETRICH DR ,  KLEINSCHMIT PETER DR ,  HORST JENNY

IPC: C09C1/56 ,  C09C1/00

公开(公告)号：AT84281T

公开(公告)日：1993-01-15

申请号：AT89108273

申请日：1989-05-09

Applicant: DEGUSSA

Inventor： PAULI INGO DR ,  KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

IPC: C01B33/12 ,  C01B33/18

公开(公告)号：DE58902872D1

公开(公告)日：1993-01-14

申请号：DE58902872

申请日：1989-07-14

Applicant: DEGUSSA

Inventor： KLEINSCHMIT PETER DR ,  KISS AKOS DR ,  SPEER DIETRICH DR

IPC: C01G31/02 ,  C09C1/00 ,  C09C1/28

公开(公告)号：BR9200203A

公开(公告)日：1992-10-06

申请号：BR9200203

申请日：1992-01-23

Applicant: DEGUSSA

Inventor： HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

IPC: B01J23/20 ,  C01G33/00 ,  C03C1/00 ,  C04B35/495

公开(公告)号：DE59000169D1

公开(公告)日：1992-07-23

申请号：DE59000169

申请日：1990-04-25

Applicant: DEGUSSA

Inventor： SEXTL GERHARD DR ,  STRACK HANS DR ,  FUSS ILONA ,  REUTER ROLAND ,  KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

IPC: C04B38/00 ,  E04B1/74 ,  F16L59/02 ,  F16L59/06

公开(公告)号：DE58901691D1

公开(公告)日：1992-07-23

申请号：DE58901691

申请日：1989-09-04

Applicant: DEGUSSA

Inventor： PAULI INGO DR ,  KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/04 ,  C01F7/02 ,  C01F7/30 ,  C09K3/14

Abstract: Aluminium oxide which is amorphous according to X-ray diffraction, has an extremely high water content and has a specific surface area (BET) in accordance with DIN 66 131 of > 10 m /g, a mean particle size of >/= 0.1 mu m and a water content of > 10% gives, through calcination, an aluminium oxide which comprises >/= 90% by weight of alpha -aluminium oxide and has a specific surface area (BET) in accordance with DIN 66 131 of > 5 m /g and a mean particle size of >/= 0.1 mu m. … The aluminium oxide which is amorphous according to X-ray diffraction can be prepared by reacting steam and vapour-form aluminium trichloride in a molar ratio of 1.5 to 10:1, preferably 7 +/- 1 : 1 = H2O : AlCl3 at a temperature of 200 to 1000 DEG C, preferably 600 +/- 50 DEG C, and at a resonance time of > 1 second, preferably 3.5 +/- 1 second, and at a pressure of 100 +/- 10 mm water column.

公开(公告)号：DE58900956D1

公开(公告)日：1992-04-16

申请号：DE58900956

申请日：1989-11-10

Applicant: DEGUSSA

Inventor： PAULI INGO DR ,  KLEINSCHMIT PETER DR ,  SCHWARZ RUDOLF DR

IPC: C01B33/18

公开(公告)号：DE3866677D1

公开(公告)日：1992-01-16

申请号：DE3866677

申请日：1988-10-08

Applicant: DEGUSSA

Inventor： KRIECHBAUM GANGOLF DR ,  KLEINSCHMIT PETER DR ,  PEUCKERT DORIS DR

IPC: C04B35/48 ,  C01G25/00 ,  C01G25/02 ,  C04B35/486

Abstract: A novel crystalline zirconium oxide powder has a BET specific surface of less than 30 (pref. 10-20) sq.m./g., a primary particle size of 0.1-0.5 microns, a monoclinic crystal structure and opt. a content of 1-10 wt. % Y2O3 and/or 1-10 wt. % MqO. Prodn. of the powder involves addinq an aq. Zr salt soln., opt. contg. Y and/or Mq ions, with stirrinq to an aq. base soln., e.q. caustic soda with an NaOH excess correspondinq to 0.5 mol/lNaOH, hydrothermally treating the reaction mixt. at 200-400 deg. C, filtering off the resulting product, water washinq free of chloride and drying at 10O-120 deg. C.

公开(公告)号：CS273607B2

公开(公告)日：1991-03-12

申请号：CS418085

申请日：1985-06-11

Applicant: DEGUSSA

Inventor： KERNER DIETER DR ,  KLEINSCHMIT PETER DR ,  PARKHOUSE ALAN ,  WOLFF SIEGFRIED

IPC: C08K9/06 ,  C08L21/00 ,  C09C3/12 ,  C09C1/28

Abstract: The invention is directed to the modification of synthetic, silicatic fillers with water insoluble sulfur containing organosilicon compounds. For this purpose, the fillers are converted into an aqueous suspension and treated with the organosilicon compounds, optionally in the presence of an emulsifier. The thus modified filler in vulcanized rubber mixtures results in a clear improvement in the industrial properties of the rubber.