IMPROVEMENTS TO PROCESSES FOR MANUFACTURING PAPER PRODUCTS BY IMPROVING THE PHYSICO-CHEMICAL BEHAVIOUR OF THE PAPER STOCK - Patent 1490551

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EP 1 490 551 A2

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(88)	Date of publication A3:
	18.12.2003

(43)	Date of publication:
	29.12.2004 Bulletin 2004/53

(21)	Application number: 03710066.6

(22)	Date of filing: 03.03.2003

(51)	International Patent Classification (IPC)⁷: D21H 23/10

(86)	International application number:
	PCT/IB2003/000818

(87)	International publication number:
	WO 2003/074788 (12.09.2003 Gazette 2003/37)

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

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Priority:

07.03.2002 FR 0202880

(71)	Applicant: L'air Liquide, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude
	75321 Paris Cedex 07 (FR)

(72)	Inventors:
	MUGUET, Michel F-78180 Montigny Le Bretonneux (FR) DE RIGAUD, Jean-Mathieu F-44100 Nantes (FR)

(74)	Representative: Conan, Philippe Claude
	L'Air Liquide SADirection de la Propriété Intellectuelle75, quai d'Orsay 75321 Paris Cédex 07 75321 Paris Cédex 07 (FR)

(54)	IMPROVEMENTS TO PROCESSES FOR MANUFACTURING PAPER PRODUCTS BY IMPROVING THE PHYSICO-CHEMICAL BEHAVIOUR OF THE PAPER STOCK