COMPOSITIONS AND METHODS FOR TREATING CLEANING SOLVENTS - Patent 0717789

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EP 0 717 789 A1

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(43)	Date of publication:
	26.06.1996 Bulletin 1996/26

(21)	Application number: 95925520.0

(22)	Date of filing: 06.07.1995

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International Patent Classification (IPC):

C11D 3/ 37^{( . )}
C11D 7/ 50^{( . )}
C11D 7/ 24^{( . )}

C11D 7/ 34^{( . )}
C23G 5/ 024^{( . )}

(86)	International application number:
	PCT/US1995/008462

(87)	International publication number:
	WO 1996/001915 (25.01.1996 Gazette 1996/05)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

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Priority:

07.07.1994 US 19940271190

(71)	Applicant: SAFETY-KLEEN CORP.
	Elgin, IL 60123-7857 (US)

(72)	Inventors:
	KIANY, Esfandiar Chicago, IL 60657 (US) BLAIR, Bruce Sycamore, IL 60178 (US) O'DONNELL, Anne Orland Park, IL 60462 (US) KUNKEL, Stephen Lee Wheeling, IL 60090 (US)

(74)	Representative: W.P. Thompson & Co.
	Coopers Building, Church Street Liverpool L1 3AB Liverpool L1 3AB (GB)

(54)	COMPOSITIONS AND METHODS FOR TREATING CLEANING SOLVENTS