METHOD FOR REDUCING THE EXTRACTIVES CONTENT OF HIGH-YIELD PULPS AND METHOD FOR PRODUCING BLEACHED HIGH-YIELD PULPS - Patent 1718801

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EP 1 718 801 A2

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(88)	Date of publication A3:
	08.12.2005

(43)	Date of publication:
	08.11.2006 Bulletin 2006/45

(21)	Application number: 05717239.7

(22)	Date of filing: 23.02.2005

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International Patent Classification (IPC):

D21C 9/08^(2006.01)

D21C 9/16^(2006.01)

(86)	International application number:
	PCT/FI2005/000112

(87)	International publication number:
	WO 2005/080672 (01.09.2005 Gazette 2005/35)

(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

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Priority:

24.02.2004 FI 20040282

(71)	Applicant: Kemira Oyj
	00180 Helsinki (FI)

(72)	Inventors:
	PARÉN, Aarto FI-65230 Vaasa (FI) JÄKÄRÄ, Jukka FI-33410 Tampere (FI)

(74)	Representative: Svensson, Johan Henrik et al
	Berggren Oy Ab, P.O. Box 16 00101 Helsinki 00101 Helsinki (FI)

(54)	METHOD FOR REDUCING THE EXTRACTIVES CONTENT OF HIGH-YIELD PULPS AND METHOD FOR PRODUCING BLEACHED HIGH-YIELD PULPS