FIXATION OF OPTICAL BRIGHTENING AGENTS ONTO PAPERMAKING FIBER - Patent 1848856

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EP 1 848 856 A1

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(43)	Date of publication:
	31.10.2007 Bulletin 2007/44

(21)	Application number: 06735601.4

(22)	Date of filing: 21.02.2006

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International Patent Classification (IPC):

D21C 9/00^(2006.01)

(86)	International application number:
	PCT/US2006/006011

(87)	International publication number:
	WO 2006/089274 (24.08.2006 Gazette 2006/34)

(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 LV MC NL PL PT RO SE SI SK TR

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Priority:

19.02.2005 US 654712 P

(71)	Applicant: INTERNATIONAL PAPER COMPANY
	Stamford, CT 06921 (US)

(72)	Inventor:
	NGUYEN, Xuan Truong Cincinnati, Ohio 45249 (US)

(74)	Representative: Kunz, Herbert et al
	Hammonds Karl-Scharnagl-Ring 7 80539 München 80539 München (DE)

(54)	FIXATION OF OPTICAL BRIGHTENING AGENTS ONTO PAPERMAKING FIBER