RETENTION AIDS FOR MECHANICAL PULPS - Patent 0680532

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EP 0 680 532 A1

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(43)	Date of publication:
	08.11.1995 Bulletin 1995/45

(21)	Application number: 94904545.0

(22)	Date of filing: 18.01.1994

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International Patent Classification (IPC):

D21H 17/ 36^{( . )}
D21H 17/ 48^{( . )}

D21H 17/ 37^{( . )}
D21H 21/ 10^{( . )}

(86)	International application number:
	PCT/CA1994/000021

(87)	International publication number:
	WO 1994/017243 (04.08.1994 Gazette 1994/18)

(84)	Designated Contracting States:
	DE GB SE

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Priority:

19.01.1993 GB 19930000939

(71)	Applicant: DORSET INDUSTRIAL CHEMICALS LTD.
	Chateauguay, Quebec J6J 4Z2 (CA)

(72)	Inventors:
	PELTON, Robert Dundas, Ontario L9H 3R3 (CA) HAMIELEC, Archie, E. Burlington, Ontario L7R 3X5 (CA) XIAO, Huining Hailton, Ontario L8S 1A8 (CA)

(74)	Representative: West, Alan Harry, et al
	R.G.C. Jenkins & Co. 26 Caxton Street London SW1H 0RJ London SW1H 0RJ (GB)

(54)	RETENTION AIDS FOR MECHANICAL PULPS