公开(公告)号：CA2355501A1

公开(公告)日：2002-02-23

申请号：CA2355501

申请日：2001-08-21

Applicant: DEGUSSA

Inventor： SCHUBERT JURGEN ,  PUTZ HANS-DIETER ,  PICKEL MICHAEL ,  HELLWIG KLAUS-DIETER

IPC: C09D1/04 ,  C09C1/30 ,  C09C3/04 ,  C09C3/10 ,  C09C3/12 ,  C09D7/12 ,  C09D201/00 ,  C09D191/06

Abstract: Disclosed is a process for covering or impregnating silica with a wax, at a temperature above the melting range and below the decomposition temperature of the wax in air. Covering silica with a wax in this way, the process is simplified and use of a dispersing agent in avoided. The silica covered with the wax is useful as a matting agent for coatings.

公开(公告)号：CA2364987A1

公开(公告)日：2003-06-14

申请号：CA2364987

申请日：2001-12-14

Applicant: DEGUSSA

Inventor： SCHUBERT JURGEN ,  HELLWIG KLAUS-DIETER ,  MULLER ASTRID

IPC: C01B33/12 ,  B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C01B33/143 ,  C01B33/193 ,  C09C1/30 ,  C09C3/06 ,  C09D129/04 ,  D21H19/40 ,  C01B33/187 ,  C08K3/36

Abstract: The invention relates to aluminum-doped precipitated silicas where the silica particles have a BET surface area of more than 300 m2/g and the aluminum is distributed in the silica particles, to a process for preparing the doped silicas, and to their use. Colored coating formulation for paper, comprising the doped precipitate d silica.

公开(公告)号：SG164273A1

公开(公告)日：2010-09-29

申请号：SG2001043165

申请日：2001-07-16

Applicant: DEGUSSA

Inventor： SCHUBERT JURGEN ,  HELLWIG KLAUS-DIETER ,  PICKEL MICHAEL ,  PUTZ HANS-DIETER

IPC: C01B33/12 ,  C09C1/30

Abstract: The invention relates to a process for covering or impregnating silica with wax, wherein covering of the silica is carried out at a temperature above the melting range and below the decomposition temperature of the wax in air. Use of the silica covered with wax as a matting agent. FIGURE: NONE

公开(公告)号：NZ511223A

公开(公告)日：2002-10-25

申请号：NZ51122301

申请日：2001-04-20

Applicant: DEGUSSA

Inventor： SCHUBERT JURGEN ,  HELLWIG KLAUS-DIETER ,  PICKEL MICHAEL ,  PUTZ HANS-DIETER

IPC: C01B33/12 ,  C09C1/30 ,  C09C1/28 ,  C09D7/02 ,  C09D191/06

Abstract: A process for covering or impregnating silica with wax, where covering of the silica is carried out at a temperature above the melting range and below the decomposition temperature of the wax in air. The silica covered with wax can be used as matting or dulling agent

公开(公告)号：TR200102679A2

公开(公告)日：2002-05-21

申请号：TR200102679

申请日：2001-09-27

Applicant: DEGUSSA

Inventor： SCHUBERT JURGEN ,  HELLWIG KLAUS-DIETER ,  MUELLER ASTRID

IPC: C01B33/12 ,  B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C01B33/143 ,  C01B33/193 ,  C09C1/30 ,  C09C3/06 ,  C09D129/04 ,  D21H19/40 ,  C01B ,  C08K ,  C09D

Abstract: Al-doped precipitated silica particles have a BET surface area above 300 m /g and uniformly distributed Al. An Independent claim is also included for production of the doped silica in which an Al salt solution is added in step (a) and (c) of the following process: (a) heating a water/Na silicate mixture to 70-86 degrees C and neutralizing the Na silicate with H2SO4; (b) ageing the solution for 30-120 minutes; (c) adjusting to pH 3-7 by addition of H2SO4; and (d) filtering and spray drying and milling the washed filter cake.

公开(公告)号：NZ513801A

公开(公告)日：2001-09-28

申请号：NZ51380101

申请日：2001-08-27

Applicant: DEGUSSA

Inventor： SCHUBERT JURGEN ,  HELLWIG KLAUS-DIETER ,  PICKEL MICHAEL ,  PUTZ HANS-DIETER

IPC: C09D1/04 ,  C09C1/30 ,  C09C3/04 ,  C09C3/10 ,  C09C3/12 ,  C09D7/12 ,  C09D201/00 ,  C01B33/149 ,  C09D7/02 ,  C09D191/06 ,  C09C1/28

Abstract: A method for coating silicic acid with wax involves applying the coating to the silicic acid in air at a temperature above the melting range but below the decomposition point of the wax.