公开(公告)号：AT291000T

公开(公告)日：2005-04-15

申请号：AT02001656

申请日：2002-01-24

Applicant: DEGUSSA

Inventor： LINDNER GOTTLIED-GEORG ,  KUHLMANN ROBERT ,  DREXEL CLAUS-PETER DR

IPC: C01B33/12 ,  A23K1/175 ,  B01J21/08 ,  C01B33/193 ,  C08K3/36 ,  C08L101/00 ,  C09D1/00 ,  C09D201/00 ,  C11D3/12 ,  C11D7/20 ,  H01M2/16 ,  A61K7/16

Abstract: Precipitated silica has the following properties: (1) BET surface area = 50-700m /g; (2) DBP absorption = 100-450g/100g; (3) choline chloride absorption for a 75 wt.% aqueous solution = 150-400g/100g; (4) CTAB surface area = 50-350m /g; and (5) DBP/choline chloride absorption ratio = below 1.07. An Independent claim is also included for production of the precipitated silica.

公开(公告)号：BR0303455A

公开(公告)日：2004-09-08

申请号：BR0303455

申请日：2003-09-04

Applicant: DEGUSSA

Inventor： SCHUBERT JUERGEN ,  KUHLMANN ROBERT ,  CHRISTIAN HANS DIETER

IPC: C01B33/143 ,  C01B33/12 ,  C01B33/193 ,  C09C1/30 ,  C09C3/08 ,  C09C3/10 ,  C09D5/00 ,  C09D7/00 ,  C09D7/12 ,  C09D201/00 ,  C08K3/34

Abstract: A precipitated silica has a Brunauer-Emmett-Teller (BET surface area) of 350-550 m2/g; DBP number of 320-400 g/100 g, where DBP number is a measure of porosity; d50 of 5-15 microns (i.e. 50% of the measured particles, based on volume, are smaller than this volume); and tamped density of 20-90 g/l.

公开(公告)号：DE10112441A1

公开(公告)日：2002-09-19

申请号：DE10112441

申请日：2001-03-15

Applicant: DEGUSSA

Inventor： LINDNER GOTTLIEB-GEORG ,  KUHLMANN ROBERT ,  DREXEL CLAUS-PETER

IPC: C01B33/12 ,  A23K1/175 ,  B01J21/08 ,  C01B33/193 ,  C08K3/36 ,  C08L101/00 ,  C09D1/00 ,  C09D201/00 ,  C11D3/12 ,  C11D7/20 ,  H01M2/16 ,  A23K1/16 ,  A61K7/16

Abstract: Precipitated silica has the following properties: (1) BET surface area = 50-700m /g; (2) DBP absorption = 100-450g/100g; (3) choline chloride absorption for a 75 wt.% aqueous solution = 150-400g/100g; (4) CTAB surface area = 50-350m /g; and (5) DBP/choline chloride absorption ratio = below 1.07. An Independent claim is also included for production of the precipitated silica.

公开(公告)号：HU0105126A2

公开(公告)日：2002-07-29

申请号：HU0105126

申请日：2001-11-23

Applicant: DEGUSSA

Inventor： KUHLMANN ROBERT ,  MEIER KARL

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

Abstract: A precipitated silica having the following physico-chemical characteristics:

公开(公告)号：PL350841A1

公开(公告)日：2002-06-03

申请号：PL35084101

申请日：2001-11-23

Applicant: DEGUSSA

Inventor： KUHLMANN ROBERT ,  MEIER KARL

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

Abstract: A precipitated silica having the following physico-chemical characteristics:

公开(公告)号：DK0798266T4

公开(公告)日：2002-03-18

申请号：DK97104764

申请日：1997-03-20

Applicant: DEGUSSA

Inventor： SIRAY MUSTAFA DR ,  STORECK ARNOLD DR ,  KUHLMANN ROBERT ,  NEUMUELLER MATHIAS

IPC: A61K8/25 ,  A61Q11/00 ,  C01B33/193

公开(公告)号：BG62998B1

公开(公告)日：2001-01-31

申请号：BG10300598

申请日：1998-12-09

Applicant: DEGUSSA

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

IPC: A61K8/21 ,  A61K8/25 ,  A61Q11/00 ,  A61K7/16 ,  A61K7/18

Abstract: The acids can be applied by adding them to substances for maintaining oral hygiene - in tooth pastes, topic fluoride preparation, dental materials or medical chewing gums. They have specific, delayed release of the active substance. They are produced by adding the active substance in the preparation of the sedimental silicic acid in the known manner. 4 claims, 2 figures

公开(公告)号：BR9805265A

公开(公告)日：2000-04-11

申请号：BR9805265

申请日：1998-12-10

Applicant: DEGUSSA

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

IPC: A61K8/21 ,  A61K8/25 ,  A61Q11/00 ,  A61K7/18 ,  A61P1/02

Abstract: A precipitated silica which contains an active substance with a characteristic, delayed release of active substance is prepared by adding the active substance during preparation of the precipitated silica. The precipitated silica containing the active substance may be added to oral hygiene agents such as toothpastes, topical fluoride preparations, dental materials or medicinal chewing gums.

公开(公告)号：BG103005A

公开(公告)日：1999-07-30

申请号：BG10300598

申请日：1998-12-09

Applicant: DEGUSSA

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

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

Abstract: The acids can be applied by adding them to substances formaintaining oral hygiene - in toothpastes, topic fluoridepreparation, dental materials or medical chewing gums. They havespecific, delayed release of the active substance. They areproduced by adding the active substance in the preparation of thesedimented silicic acid in the known manner.4 claims

公开(公告)号：DE19803066A1

公开(公告)日：1999-06-24

申请号：DE19803066

申请日：1998-01-28

Applicant: DEGUSSA

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

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

Abstract: Precipitated silica that contains an active agent and provides delayed release of the active agent is new. Also claimed is a process for preparing a product as above, in which precipitated silica is produced in known manner and a moderately to sparingly water-soluble active agent is added to the precipitation medium or the precipitate suspension or is dried together with the washed and optionally redispersed silica paste or is ground together with the dried material.