SCALE INHIBITION BY SQUEEZE APPLICATION OF A PHOSPHONOMETHYLATED POLYAMINE INHIBITOR - Patent 0896650

(19)

(11)

EP 0 896 650 A1

(12)

(43)	Date of publication:
	17.02.1999 Bulletin 1999/07

(21)	Application number: 96942929.0

(22)	Date of filing: 10.12.1996

(51)

International Patent Classification (IPC):

C09K 8/ 12^{( . )}

C09K 8/ 528^{( . )}

(86)	International application number:
	PCT/US1996/019519

(87)	International publication number:
	WO 1997/021905 (19.06.1997 Gazette 1997/26)

(84)	Designated Contracting States:
	DE DK GB IT NL

(30)

Priority:

14.12.1995 US 19950572562

(71)	Applicant: BAKER HUGHES INCORPORATED
	Houston, Texas 77027 (US)

(72)	Inventors:
	JACKSON, George, E. Liverpool L23 8UP (GB) MCLAUGHLIN, Kevin Ormshirk, Lancashire L40 5TF (GB) POYNTON, Neil Chorley, Lancashire PR7 3EQ (GB) PRZYBYLINSKI, John, L. St. Louis, MO 63119 (US)

(74)	Representative: Seaborn, George Stephen
	c/o Edward Evans & Co. Chancery House 53-64 Chancery Lane London WC2A 1SD London WC2A 1SD (GB)

(54)	SCALE INHIBITION BY SQUEEZE APPLICATION OF A PHOSPHONOMETHYLATED POLYAMINE INHIBITOR