PREPARATION OF STABILIZED ALUMINA HAVING ENHANCED RESISTANCE TO LOSS OF SURFACE AREA AT HIGH TEMPERATURES - Patent 0630356

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EP 0 630 356 A1

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(43)	Date of publication:
	28.12.1994 Bulletin 1994/52

(21)	Application number: 93907334.0

(22)	Date of filing: 10.03.1993

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International Patent Classification (IPC):

C01F 7/ 02^{( . )}

(86)	International application number:
	PCT/US1993/002104

(87)	International publication number:
	WO 1993/017968 (16.09.1993 Gazette 1993/22)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IT LI NL SE

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Priority:

12.03.1992 US 19920849747
12.03.1992 US 19920849882

(71)	Applicant: VISTA CHEMICAL COMPANY
	Houston, TX 77079 (US)

(72)	Inventors:
	DECKER, Lewis, Bernard, Jr. Lago Vista, TX 78645 (US) McLAUGHLIN, Kevin, J. Austin, TX 78729 (US)

(74)	Representative: Ruschke, Hans Edvard, Dipl.-Ing. Patentanwälte
	Ruschke & Partner, Pienzenauerstrasse 2 D-81679 München D-81679 München (DE)

(54)	PREPARATION OF STABILIZED ALUMINA HAVING ENHANCED RESISTANCE TO LOSS OF SURFACE AREA AT HIGH TEMPERATURES