PULPING OF LIGNOCELLULOSE WITH AQUEOUS ALCOHOL AND ALKALINE EARTH METAL SALT CATALYST - Patent 0056409

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EP 0 056 409 A1

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(43)	Date of publication:
	28.07.1982 Bulletin 1982/30

(21)	Application number: 81902305.0

(22)	Date of filing: 24.07.1981

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International Patent Classification (IPC):

D21C 3/ 20^{( . )}

(86)	International application number:
	PCT/EP1981/000105

(87)	International publication number:
	WO 1982/000483 (18.02.1982 Gazette 1982/06)

(84)	Designated Contracting States:
	AT DE FR SE

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Priority:

25.07.1980 CA 19800359443

(71)	Applicant: Bau- und Forschungsgesellschaft Thermoform A.G.
	Murten/ Fribourg (CH)

(72)	Inventors:
	PASZNER, Laszlo Vancouver Britisch Columbia (CA) CHANG, Pei-Ching Vancouver Britisch Columbia (CA)

(74)	Representative: Hansmann, Axel, et al
	Patent- und Rechtsanwälte Hansmann, Vogeser, Dr. Boecker, Alber, Dr. Strych, Liedl Albert-Rosshaupter-Strasse 65 D-81369 München D-81369 München (DE)

(54)	PULPING OF LIGNOCELLULOSE WITH AQUEOUS ALCOHOL AND ALKALINE EARTH METAL SALT CATALYST