PROCESS FOR PREPARING A HIGH PURITY CHEMICAL-FREE MICROCRYSTALLINE CELLULOSE FROM A CHEMICALLY PRODUCED CELLULOSE - Patent 1082348

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EP 1 082 348 A1

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(43)	Date of publication:
	14.03.2001 Bulletin 2001/11

(21)	Application number: 98921305.3

(22)	Date of filing: 14.05.1998

(51)	International Patent Classification (IPC)⁷: C08B 15/08, D21C 9/00

(86)	International application number:
	PCT/CA9800/479

(87)	International publication number:
	WO 9960/027 (25.11.1999 Gazette 1999/47)

(84)	Designated Contracting States:
	AT DE ES FI FR GB IT SE

(71)	Applicant: Kemestrie Inc.
	Sherbrooke,Québec J1L 2C8 (CA)

(72)	Inventors:
	JOLLEZ, Paul Sherbrooke, Québec J1J 1G9 (CA) CHORNET, Esteban Sherbrooke, Québec J1L 1T3 (CA)

(74)	Representative: Ahner, Francis et al
	Cabinet Régimbeau20, rue de Chazelles 75847 Paris cedex 17 75847 Paris cedex 17 (FR)

(54)	PROCESS FOR PREPARING A HIGH PURITY CHEMICAL-FREE MICROCRYSTALLINE CELLULOSE FROM A CHEMICALLY PRODUCED CELLULOSE