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公开(公告)号:JPH10130004A
公开(公告)日:1998-05-19
申请号:JP10852997
申请日:1997-04-25
Applicant: DEGUSSA
Inventor: MANGOLD HELMUT DR , HARTMANN WERNER DR , AKAM RICHARD
IPC: B24D3/00 , C01B13/18 , C01F17/00 , C01G23/04 , C01G23/07 , C01G25/02 , C08K3/22 , C09K3/14 , H01L21/304
Abstract: PROBLEM TO BE SOLVED: To provide a fine mixture of cerium oxide with at least one of a metal oxide and a metalloid oxide. SOLUTION: At least one of a metal oxide and a metalloid oxide each having 30-400m /g specific surface area produced by thermal decomposition is vigorously mixed with a cerium compd. convertible into cerium oxide by decomposition at an elevated temp. and the cerium compd. is converted into cerium oxide by thermal decomposition to produce the objective fine mixture of 0.001-95wt.% cerium oxide with at least one of the metal oxide and metalloid oxide produced by thermal decomposition.
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公开(公告)号:EP0803471A3
公开(公告)日:1998-09-16
申请号:EP97104499
申请日:1997-03-17
Applicant: DEGUSSA
Inventor: MANGOLD HELMUT DR , HARTMANN WERNER DR , AKAM RICHARD
CPC classification number: C09K3/14 , C01B13/185 , C01P2006/10 , C01P2006/12 , C01P2006/82 , C08K3/22 , C09K3/1454
Abstract: Eine feinteilige Ceroxid-Metall/Metalloidoxid-Mischung, enthaltend pyrogen hergestelltes Metall/Metalloidoxid und 0,001 bis 95 Gew.-% Ceroxid, mit einer spezifischen Oberfläche der erhaltenen Mischung zwischen 10 und 400 m
2 /g wird hergestellt, indem man pyrogen hergestelltes Metall/Metalloidoxid mit einer spezifischen Oberfläche zwischen 30 und 400 m
2 /g mit einer bei erhöhter Temperatur zum Oxid zersetzbaren Cerverbindung mischt und die Cerverbindung thermisch zum Oxid zersetzt.
Die Ceroxid-Metall/Metalloidoxid-Mischung kann als Poliermittel oder Füllstoff eingesetzt werden.-
公开(公告)号:DE59711892D1
公开(公告)日:2004-10-14
申请号:DE59711892
申请日:1997-03-17
Applicant: DEGUSSA
Inventor: MANGOLD DR , HARTMANN DR , AKAM RICHARD
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公开(公告)号:CA2203468A1
公开(公告)日:1997-10-26
申请号:CA2203468
申请日:1997-04-23
Applicant: DEGUSSA
Inventor: AKAM RICHARD , HARTMANN WERNER , MANGOLD HELMUT
IPC: B24D3/00 , C01B13/18 , C01F17/00 , C01G23/04 , C01G23/07 , C01G25/02 , C08K3/22 , C09K3/14 , H01L21/304 , C01F15/00 , C08K3/34 , C08K3/38
Abstract: A finely-divided cerium oxide-metal/metalloid oxide mixture containing pyrogenically-produced metal/metalloid oxide and 0.001 to 95 wt.% cerium oxide. The resulting mixture, having a specific surface area between 10 and 400 m2/g, is produced by mixing the pyrogenically-produced metal/metalloid oxide (having a specific surface area between 30 and 400 m2/g) with a cerium compound which is decomposable to the oxide at elevated temperature, and the cerium compound then is thermally decomposed to the oxide. The cerium oxide-metal/metalloid oxide mixture can be used as a polishing agent or as a polymer filler material.
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公开(公告)号:DE102009022516A1
公开(公告)日:2010-12-02
申请号:DE102009022516
申请日:2009-05-25
Applicant: EVONIK DEGUSSA GMBH
Inventor: FRIEDEL MANUEL , GIESSLER-BLANK SABINE , HORN PETER , AKAM RICHARD
Abstract: Gegenstand der Erfindung ist ein Verfahren zur Herstellung hydrophoben Sandes, der hydrophobe Sand selbst und dessen Verwendung. Sand jeder Teilchengröße unterhalb 2000 µm Sandpartikel-Größe lässt sich mit erfindungsgemäßen Silanisierungsmittel-Emulsionen wasserabweisend ausrüsten. Dazu werden von 0,19 · 10bis 5 · 10g eines Silanisierungsmittels pro minnerer Oberflächeerfindungsgemäß eingesetzt.
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公开(公告)号:CA2203468C
公开(公告)日:2001-08-07
申请号:CA2203468
申请日:1997-04-23
Applicant: DEGUSSA
Inventor: MANGOLD HELMUT , HARTMANN WERNER , AKAM RICHARD
IPC: B24D3/00 , C01B13/18 , C01F17/00 , C01G23/04 , C01G23/07 , C01G25/02 , C08K3/22 , C09K3/14 , H01L21/304 , C01F15/00 , C08K3/34 , C08K3/38
Abstract: A finely-divided cerium oxide-metal/metalloid oxide mixture containing pyrogenically-produced metal/metalloid oxide and 0.001 to 95 wt.% cerium oxide. The resulting mixture, having a specific surface area between 10 and 400 m2/g, is produced by mixing the pyrogenically-produced metal/metalloid oxide (having a specific surface area between 30 and 400 m2/g) with a cerium compound which is decomposable to the oxide at elevated temperature, and the cerium compound then is thermally decomposed to the oxide. The cerium oxide-metal/metalloid oxide mixture can be used as a polishing agent or as a polymer filler material.
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公开(公告)号:DE19616780A1
公开(公告)日:1997-11-06
申请号:DE19616780
申请日:1996-04-26
Applicant: DEGUSSA
Inventor: MANGOLD HELMUT DR , HARTMANN WERNER DR , AKAM RICHARD
IPC: B24D3/00 , C01B13/18 , C01F17/00 , C01G23/04 , C01G23/07 , C01G25/02 , C08K3/22 , C09K3/14 , H01L21/304 , C01B33/113 , C01B35/00 , C01G23/00 , C01G25/00 , C04B35/622 , C09G1/02
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