METHODS OF AND SYSTEMS FOR ADDING A HIGH VISCOSITY GYPSUM ADDITIVE TO A POST-MIXER AQUEOUS DISPERSION OF CALCINED GYPSUM - Patent 1874705

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EP 1 874 705 A1

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(43)	Date of publication:
	09.01.2008 Bulletin 2008/02

(21)	Application number: 05739963.6

(22)	Date of filing: 27.04.2005

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International Patent Classification (IPC):

C04B 11/00^(2006.01)

(86)	International application number:
	PCT/US2005/014504

(87)	International publication number:
	WO 2006/115497 (02.11.2006 Gazette 2006/44)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	HR LV

(71)	Applicant: UNITED STATES GYPSUM COMPANY
	Chicago, IL 60661-3637 (US)

(72)	Inventors:
	WITTBOLD, James, R. Des Plaines, IL 60018 (US) SONG, W., David Gurnee, IL 66031 (US)

(74)	Representative: Johnson, Terence Leslie
	Marks & Clerk 90 Long Acre London, WC2E 9RA London, WC2E 9RA (GB)

(54)	METHODS OF AND SYSTEMS FOR ADDING A HIGH VISCOSITY GYPSUM ADDITIVE TO A POST-MIXER AQUEOUS DISPERSION OF CALCINED GYPSUM