IMPROVED DEVELOPER SYSTEMS FOR HYDRAZINE CONTAINING FILMS - Patent 0569580

(19)

(11)

EP 0 569 580 A1

(12)

(43)	Date of publication:
	18.11.1993 Bulletin 1993/46

(21)	Application number: 92925425.0

(22)	Date of filing: 02.12.1992

(51)

International Patent Classification (IPC):

G03C 1/ 06^{( . )}
G03C 5/ 29^{( . )}

G03C 1/ 295^{( . )}
G03C 5/ 30^{( . )}

(86)	International application number:
	PCT/US1992/010219

(87)	International publication number:
	WO 1993/011456 (10.06.1993 Gazette 1993/14)

(84)	Designated Contracting States:
	DE FR GB IT

(30)

Priority:

02.12.1991 US 19910801346

(71)	Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
	Wilmington Delaware 19898 (US)

(72)	Inventor:
	PANGRATZ, William, Robert Middletown, NJ 07748 (US)

(74)	Representative: von Kreisler, Alek, Dipl.-Chem.
	Patentanwälte von Kreisler-Selting-Werner Postfach 10 22 41 D-50462 Köln D-50462 Köln (DE)

(54)	IMPROVED DEVELOPER SYSTEMS FOR HYDRAZINE CONTAINING FILMS