METHOD FOR MANUFACTURE OF LIGHTWEIGHT FROTHED MINERAL WOOL PANEL - Patent 0297132

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EP 0 297 132 A1

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(43)	Date of publication:
	04.01.1989 Bulletin 1989/01

(21)	Application number: 88901140.0

(22)	Date of filing: 11.01.1988

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International Patent Classification (IPC):

D21H 13/ 36^{( . )}
D21H 13/ 40^{( . )}
D21H 17/ 36^{( . )}
D21H 27/ 00^{( . )}

D21F 11/ 00^{( . )}
D21H 13/ 44^{( . )}
D21H 17/ 45^{( . )}
D21J 1/ 20^{( . )}

(86)	International application number:
	PCT/US1988/000136

(87)	International publication number:
	WO 1988/005100 (14.07.1988 Gazette 1988/15)

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

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Priority:

08.01.1987 US 19870001579

(71)	Applicant: USG Interiors, Inc.
	Chicago Illinois 60606 (US)

(72)	Inventors:
	IZARD, David, Graham Wauconda, IL 60084 (US) ENGLERT, Mark, Howard Buffalo Grove, IL 60089 (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)	METHOD FOR MANUFACTURE OF LIGHTWEIGHT FROTHED MINERAL WOOL PANEL