公开(公告)号：TR9802573A3

公开(公告)日：1999-06-21

申请号：TR9802573

申请日：1998-12-10

Applicant: DEGUSSA AKTIENGESELLSCHAFT

Inventor： HEINZ ESCH ,  ROBERT KUHLMANN ,  MATTHIAS NEUMULLER ,  DR. KARIN OTTO ,  DR. RALF RAUSCH ,  KLAUS-PETER THOMAS

IPC: A61K8/21 ,  A61K8/25 ,  A61Q11/00 ,  A61K7/18

CPC classification number: A61Q11/00 ,  A61K8/25

公开(公告)号：MXPA01011394A

公开(公告)日：2004-05-21

申请号：MXPA01011394

申请日：2001-11-08

Applicant: DEGUSSA

Inventor： ROBERT KUHLMANN

IPC: A23K1/175 ,  B01J21/08 ,  B01J32/00 ,  B01J35/10 ,  C01B33/12 ,  C01B33/143 ,  C01B33/193 ,  C08K3/36

Abstract: La invencion se refiere a acidos silicicos de precipitacion secados en lapsos cortos, con estructura elevada, a un procedimiento para su obtencion y a su utilizacion. Los acidos silicicos de precipitacion se caracterizan por los siguientes parametros fisico-quimicos: pH (al 5% en agua) (ISO 787-9) 3-8 Superficie BET (DIN 66131) m2/s 400-600 Absorcion de DBP (DIN 53601, g/100g 380-420 referido a la sustancia seca) Densidad de masa apisonada (ISO 787-11) g/l 100-200 Residuo de tamizado ALPINE > 63 ° (ISO 8130-1) % 0.1-40.

公开(公告)号：CH531989A

公开(公告)日：1972-12-31

申请号：CH1319768

申请日：1968-09-03

Applicant: DEGUSSA

Inventor： EDITH EISENMENGER ,  KUEHNERT OTTO DR ,  ROBERT KUHLMANN ,  PETER NAUROTH ,  TUERK GUENTER DR

IPC: C01B33/154 ,  C01B33/193 ,  C09C1/28 ,  C09C1/30 ,  C09C3/10 ,  C09D7/00 ,  C09D167/00 ,  C01B33/00

公开(公告)号：TR199802573A3

公开(公告)日：1999-06-21

申请号：TR9802573

申请日：1998-12-10

Applicant: DEGUSSA AKTIENGESELLSCHAFT

Inventor： HEINZ ESCH ,  ROBERT KUHLMANN ,  MATTHIAS NEUMULLER ,  DR. KARIN OTTO ,  DR. RALF RAUSCH ,  KLAUS-PETER THOMAS

IPC: A61K8/21 ,  A61K8/25 ,  A61Q11/00 ,  A61K7/18

公开(公告)号：PH30936A

公开(公告)日：1997-12-23

申请号：PH48754

申请日：1994-08-05

Applicant: DEGUSSA

Inventor： HEINZ ESCH ,  ROBERT KUHLMANN ,  MATTIAS NEUMUELLER ,  KARIN OTTO ,  RALF RAUSCH

IPC: A61K8/00 ,  A61K8/25 ,  A61Q11/00 ,  C01B33/193 ,  A61K7/16 ,  A61K7/18 ,  C09K3/14 ,  C01B33/12

Abstract: Precipitated silica having a BET surface area of 10-130 m /g, a CTAB surface area of 10-70 m /g, a mean particle diameter of 5-20 mu m, a Cu abrasion in 10% strength glycerol (glycerine) dispersion of 4-50 mg and a thickening behaviour in CMC solution (20% strength dispersion) of 300-3500 mPa.s is prepared by simultaneously adding alkali metal silicate (weight ratio SiO2: alkali metal oxide = 2.5-3.9:1) and a mineral acid to an initial charge of water which has been adjusted to a pH of from 7.0 to 9.9 or from 10.0 to 10.7 by addition of water, keeping the pH constant between 7.0 and 9.9 or 10.0 and 10.7, with the initial precipitation temperature being 50-90 DEG C and a viscosity increase commencing at the latest after 25% of the precipitation time, setting the pH to /= 160 g/l to 240 g/l, separating off the solid by filtration and washing, drying and milling it. The precipitated silica can be used as abrasive and/or thickening component in toothpastes.