PROCESS AND APPARATUS FOR PRODUCING CALCIUM SULFATE MICROFIBERS - Patent 0416089

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EP 0 416 089 A1

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(43)	Date of publication:
	13.03.1991 Bulletin 1991/11

(21)	Application number: 90905820.0

(22)	Date of filing: 14.03.1990

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International Patent Classification (IPC):

C30B 29/ 62^{( . )}
B01J 19/ 24^{( . )}
C04B 14/ 38^{( . )}

B01J 19/ 18^{( . )}
C01F 11/ 46^{( . )}
C30B 7/ 00^{( . )}

(86)	International application number:
	PCT/US1990/001406

(87)	International publication number:
	WO 1990/011256 (04.10.1990 Gazette 1990/23)

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

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Priority:

16.03.1989 US 19890324854

(71)	Applicant: UNITED STATES GYPSUM COMPANY
	Chicago, Illinois 60606 (US)

(72)	Inventors:
	LYNN, Michael, R. Palatine, IL 60016 (US) WITTBOLD, James, R. Des Plaines, IL 60018 (US) REHDER, Thomas, E. Mundelein, IL 60060 (US)

(74)	Representative: Johnson, Terence Leslie, et al
	Edward Evans & Co. Chancery House 53-64 Chancery Lane London WC2A 1SD London WC2A 1SD (GB)

(54)	PROCESS AND APPARATUS FOR PRODUCING CALCIUM SULFATE MICROFIBERS