PIPE OF THERMOPLASTIC MATERIAL AND A METHOD AND DEVICE FOR EXTRUDING SUCH A PIPE - Patent 0866935

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EP 0 866 935 A1

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

(21)	Application number: 96940166.0

(22)	Date of filing: 11.12.1996

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International Patent Classification (IPC):

B29C 47/ 06^{( . )}
B29D 24/ 00^{( . )}

B29C 47/ 20^{( . )}
F16L 9/ 18^{( . )}

(86)	International application number:
	PCT/NL1996/000482

(87)	International publication number:
	WO 1997/022827 (26.06.1997 Gazette 1997/27)

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

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Priority:

15.12.1995 NL 19951001914

(71)	Applicant: WAVIN B.V.
	8011 CW Zwolle (NL)

(72)	Inventors:
	VAN DONGEREN, Jan, Peter NL-7691 AR Bergtenheim (NL) STOFFELSMA, Jan, Uilke NL-7772 XC Hardenberg (NL)

(74)	Representative: Brookhuis, Hendrik Jan Arnold, et al
	van Exter Polak & Charlouis B.V. P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)

(54)	PIPE OF THERMOPLASTIC MATERIAL AND A METHOD AND DEVICE FOR EXTRUDING SUCH A PIPE