THERMAL DIMENSIONAL STABILITY TREATMENT OF VITREOUS SHEET MATERIAL BY CONTACTING WITH A MOLTEN ALKALI METAL SALT - Patent 1021382

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EP 1 021 382 A1

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(43)	Date of publication:
	26.07.2000 Bulletin 2000/30

(21)	Application number: 98944903.8

(22)	Date of filing: 18.09.1998

(51)	International Patent Classification (IPC)⁷: C03C 21/00

(86)	International application number:
	PCT/BE9800/137

(87)	International publication number:
	WO 9915/471 (01.04.1999 Gazette 1999/13)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

23.09.1997 GB 9720230

(71)	Applicant: GLAVERBEL
	1170 Bruxelles (BE)

(72)	Inventors:
	PALIN, Nello B-5150 Soye (BE) BAUDIN, Pol B-6140 Fontaine-l'Evêque (BE) POELS, Jean-Pierre B-1495 Villers-la-Ville (BE)

(74)	Representative: Vandenberghen, Lucienne et al
	Glaverbel - Center R. & D.,Department Industrial Property,Rue de l'Aurore, 2 6040 Jumet 6040 Jumet (BE)

(54)	THERMAL DIMENSIONAL STABILITY TREATMENT OF VITREOUS SHEET MATERIAL BY CONTACTING WITH A MOLTEN ALKALI METAL SALT