PREVENTION OF GEL FORMATION DURING USE OF AND PRESERVING/REGENERATING ACTIVITY OF NAFION-TYPE POLYMERIZATION CATALYST - Patent 0866822

(19)

(11)

EP 0 866 822 A1

(12)

(43)	Date of publication:
	30.09.1998 Bulletin 1998/40

(21)	Application number: 96944233.0

(22)	Date of filing: 05.12.1996

(51)

International Patent Classification (IPC):

C08G 65/ 20^{( . )}
C08G 65/ 30^{( . )}

C08G 65/ 26^{( . )}

(86)	International application number:
	PCT/US1996/019354

(87)	International publication number:
	WO 1997/021755 (19.06.1997 Gazette 1997/26)

(84)	Designated Contracting States:
	BE DE NL

(30)

Priority:

14.12.1995 US 19950572408

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

(72)	Inventors:
	SCHULTZ, James, A. Swedesboro, NJ 08085-1730 (US) DORAI, Suriyanarayan Missouri City, TX 77459-2309 (US)

(74)	Representative: R.A. KUHNEN & P.A. WACKER
	Patentanwaltsgesellschaft mbH Alois-Steinecker-Strasse 22 85354 Freising 85354 Freising (DE)

(54)	PREVENTION OF GEL FORMATION DURING USE OF AND PRESERVING/REGENERATING ACTIVITY OF NAFION-TYPE POLYMERIZATION CATALYST