PROCESS FOR BLEACHING OF LIGNO-CELLULOSIC MATERIAL - Patent 0500813

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EP 0 500 813 A1

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(43)	Date of publication:
	02.09.1992 Bulletin 1992/36

(21)	Application number: 91903930.0

(22)	Date of filing: 24.01.1991

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International Patent Classification (IPC):

D21C 9/ 10^{( . )}
D21C 9/ 16^{( . )}

D21C 9/ 14^{( . )}

(86)	International application number:
	PCT/SE1991/000051

(87)	International publication number:
	WO 1991/011554 (08.08.1991 Gazette 1991/18)

(84)	Designated Contracting States:
	AT BE ES FR SE

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Priority:

31.01.1990 SE 19900000340

(71)	Applicant: EKA NOBEL AB
	S-445 01 Bohus (SE)

(72)	Inventors:
	ANDERSSON, Lennart S-416 61 Göteborg (SE) BLOM, Christian S-433 75 Partille (SE)

(74)	Representative: Schöld, Zaid
	Eka Nobel AB Patent Department Box 11556 S-100 61 Stockholm S-100 61 Stockholm (SE)

(54)	PROCESS FOR BLEACHING OF LIGNO-CELLULOSIC MATERIAL