公开(公告)号：DE10204470C1

公开(公告)日：2003-08-14

申请号：DE10204470

申请日：2002-02-05

Applicant: DEGUSSA

Inventor： LORTZ WOLFGANG ,  BATZ-SOHN CHRISTOPH

IPC: B01J13/00 ,  B01F3/04 ,  B01F3/12 ,  B01F5/02 ,  B01F5/10 ,  B01J14/00 ,  B01J19/26 ,  B01F5/18

Abstract: The production of a finely divided stable dispersion of solids having an average particle size of 10 nm to 10 microns comprises injecting at least two streams of a pre-dispersion via high pressure pumps through a nozzle into a reactor chamber enclosing a reactor housing, introducing water vapor into the reactor chamber via an opening so that a vapor atmosphere mainly consisting of water vapor is produced in the chamber, and removing the finely dispersion and vapor and/or partially condensed vapor consisting mainly of water on the gas inlet side from the reactor chamber. An Independent claim is also included for a device for carrying out the process. Preferred Features: The pre-dispersion comprises water or organic compounds as the liquid phase. The pre-dispersion contains a dispersing agent and/or surface-active substances. The water vapor has a temperature of the boiling temperature of water at the pressure prevailing on the gas inlet side.

公开(公告)号：DE10203047A1

公开(公告)日：2003-08-07

申请号：DE10203047

申请日：2002-01-26

Applicant: DEGUSSA

Inventor： SCHARFE THOMAS ,  BATZ-SOHN CHRISTOPH ,  LORTZ WOLFGANG

IPC: B41J2/01 ,  B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C08K3/22 ,  C08K3/34 ,  C08L101/02 ,  C09C1/30 ,  C09C3/00 ,  C09D11/037 ,  C09D17/00 ,  D21H19/36 ,  C09D5/02 ,  C09D1/02 ,  C08K9/08

Abstract: In dispersions of mixed oxide particles containing silicon dioxide and cationic polymer, the amount of cationic polymer can be 25% decreased by doping the silicon dioxide with 0.25 wt.% aluminum oxide without affecting the positive surface charge on the particles. A stable aqueous dispersion contains flame-hydrolytically prepared mixed oxide particles containing silicon dioxide and aluminum oxide or titanium dioxide, with a BET (Brunauer Emmett Teller) surface area between 5 and 600 m2/g, which shows a negative zeta potential, and a dissolved cationic polymer of weight average mol. wt. less than 100,000 g/mole, the dispersion having a positive zeta potential. Independent claims are also included for the following: (1) a process for preparation of the dispersion involving predispersion and final dispersion, where before predispersion the cationic polymer is included in an aqueous medium or is added during dispersion, or the mixed oxide particles and cationic polymer are added alternately; (2) a brushing on paint for formation of an ink acceptance layer using the dispersion and at least one hydrophilic binder; (3) a process for preparation of the brushing on paint by addition of the dispersion to a solution of hydrophilic binder, optionally with addition of other additives, followed by dilution to the required ratio of mixed oxide and binder and the desired total solids content; (4) an ink take up medium using a brushing on paint; and (5) a method for preparation of the ink take up medium involving application of the brushing on paint to a carrier and drying.

公开(公告)号：DE10205280C1

公开(公告)日：2003-07-03

申请号：DE10205280

申请日：2002-02-07

Applicant: DEGUSSA

Inventor： LORTZ WOLFGANG ,  PERLET GABRIELE ,  BATZ-SOHN CRISTOPH ,  WILL WERNER

IPC: B24B37/00 ,  C01B33/18 ,  C09G1/02 ,  C09K3/14 ,  H01L21/304 ,  H01L21/3105 ,  C09G1/04

Abstract: In aqueous dispersion for chemical-mechanical polishing of oxide surfaces, containing a powder of pyrogenic silica doped with alumina by means of an aerosol, the powder contains 0.01-3, preferably 0.2-1.5 weight percent (wt.%) alumina and the average particle diameter of the dispersion is not more than 0.1 microns. An Independent claim is also included for production of the dispersion by dispersing the doped silica in an aqueous medium with an energy input of not less than 200 kJ/m3.

公开(公告)号：AU2002337125A1

公开(公告)日：2003-04-22

申请号：AU2002337125

申请日：2002-09-23

Applicant: DEGUSSA

Inventor： HABERMANN HERBERT ,  BATZ-SOHN CHRISTOPH ,  HEMME INA ,  DIENER UWE ,  MORTERS MARTIN ,  LORTZ WOLFGANG

IPC: C01F7/02 ,  C01F7/30 ,  C03C19/00 ,  C09C1/04 ,  C09D17/00 ,  C09G1/02 ,  C09K3/14 ,  H01L21/02 ,  H01L21/304 ,  H01L21/306 ,  H01L21/321 ,  C01F7/16

Abstract: Aluminium oxide doped with a divalent metal oxide, produced by flame hydrolysis and which has no spinell structures or alpha-aluminium detectable in an x-ray diffractogram. It is produced by a pyrogenic process in which, during the flame hydrolysis of aluminium halogenides, an aerosol, which contains an aqueous solution of a divalent metal salt is added to the gas mixture. The doped aluminium oxides can be used in aqueous dispersions for chemical-mechanical polishing.

公开(公告)号：DE10065027A1

公开(公告)日：2002-07-04

申请号：DE10065027

申请日：2000-12-23

Applicant: DEGUSSA

Inventor： LORTZ WOLFGANG ,  MANGOLD HELMUT ,  BATZ-SOHN CHRISTOPH ,  PERLET GABRIELE ,  WILL WERNER

IPC: A61K8/18 ,  A61K8/25 ,  A61Q1/02 ,  C01B33/141 ,  C01B33/18 ,  C03C17/25 ,  C09C1/68 ,  C09G1/02 ,  C09K3/14 ,  D21H19/40 ,  H01L21/304 ,  H01L21/306 ,  C09D1/02 ,  B01F3/12

Abstract: A pyrogenic process is used to prepare alkali-doped silica particles. Particles produced by this process exhibit homogeneous doping, reduced agglomeration, greater stability and higher removal rates. Aqueous dispersions containing alkali-doped pyrogenic silica with average particle size less than 100 nm are used for polishing surfaces (CMP).

公开(公告)号：CA2351162A1

公开(公告)日：2001-12-22

申请号：CA2351162

申请日：2001-06-21

Applicant: DEGUSSA

Inventor： KAUFMANN MARITA ,  KARL ALFONS ,  BERGEMANN KLAUS ,  LORTZ WOLFGANG ,  STUBBE ANDREAS ,  GLAUM HOLGER

IPC: B41J2/01 ,  B41M5/00 ,  B41M5/50 ,  B41M5/52 ,  C09C1/56 ,  C09C3/08 ,  C09D4/00 ,  C09D11/00 ,  C09D11/02 ,  C09D201/00 ,  C09D201/02 ,  C09D11/08

Abstract: The invention relates to a printed media coating, wherein at least one constituent of the ink is bonded to at least one constituent of the media coating via a chemical bond. A process for the production of the printed media coating and the use thereof are furthermore described.

公开(公告)号：PL332562A1

公开(公告)日：1999-10-25

申请号：PL33256299

申请日：1999-04-16

Applicant: DEGUSSA

Inventor： GOEBEL THOMAS ,  LORTZ WOLFGANG ,  LITTMANN KLAUS ,  GERHARD-ABOZARI EVA

IPC: C08K5/54 ,  C04B41/49 ,  C04B41/64 ,  C07F7/18 ,  C04B41/50

公开(公告)号：PT91423B

公开(公告)日：1995-05-31

申请号：PT9142389

申请日：1989-08-10

Applicant: DEGUSSA

Inventor： SAX BEATA-M ,  LEONHARDT WOLFGANG ,  KISS AKOS ,  LORTZ WOLFGANG ,  ROEBKE WOLFGANG ,  DIETRICH CLAUS

IPC: C11D3/08 ,  C01B39/02 ,  C01B39/14 ,  C11D3/12 ,  C01B33/34

Abstract: Na A-type zeolite powder characterised by a median particle size (= 50% point) of 1.6 to 3.2 mu m measured with a Cilas 715 granulometer. This zeolite powder is employed as phosphate substitute in liquid detergents.

公开(公告)号：IN172712B

公开(公告)日：1993-12-09

申请号：IN551CA1989

申请日：1989-07-12

Applicant: DEGUSSA

Inventor： SAX BEATA MARIA ,  LEONHARDT WOLFGANG ,  KISS AKOS ,  LORTZ WOLFGANG ,  ROEBKE WOLFGANG ,  DIETRICH CLAUS

IPC: C11D3/08

公开(公告)号：NO174109B

公开(公告)日：1993-12-06

申请号：NO893222

申请日：1989-08-10

Applicant: DEGUSSA

Inventor： SAX BEATA-M ,  LEONHARDT WOLFGANG ,  KISS AKOS ,  LORTZ WOLFGANG ,  ROEBKE WOLFGANG ,  DIETRICH CLAUS

IPC: C11D3/08 ,  C01B39/02 ,  C01B39/14 ,  C11D3/12 ,  C01B33/34

Abstract: Na A-type zeolite powder characterised by a median particle size (= 50% point) of 1.6 to 3.2 mu m measured with a Cilas 715 granulometer. This zeolite powder is employed as phosphate substitute in liquid detergents.