APPARATUS FOR TWO-STAGE FUSION OF FACE-TO-FACE POLYMERIC SHEETS

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EP 0 904 191 A1

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(43)	Date of publication:
	31.03.1999 Bulletin 1999/13

(21)	Application number: 97922708.0

(22)	Date of filing: 07.05.1997

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International Patent Classification (IPC):

B32B 37/ 10^{( . )}
B29C 65/ 02^{( . )}
B29D 7/ 01^{( . )}
B29K 67/ 00^{( . )}

B29C 63/ 02^{( . )}
B29D 7/ 00^{( . )}
B29K 27/ 06^{( . )}
B29L 9/ 00^{( . )}

(86)	International application number:
	PCT/US1997/007727

(87)	International publication number:
	WO 1997/043110 (20.11.1997 Gazette 1997/50)

(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:

13.05.1996 US 19960645230

(71)	Applicants:
	MINNESOTA MINING AND MANUFACTURING COMPANY St. Paul, Minnesota 55133-3427 (US) Atlantek, Inc. Wakefield, RI 02879 (US)

(72)	Inventors:
	CORPUS, Paul, V. Wakefield, RI 02879 (US) FIELD, Gary Portsmouth, RI 02871 (US) FOSSUM, Douglas, K. Saint Paul, MN 55133-3427 (US)

(74)	Representative: Hill, Richard, et al
	Wilson, Gunn, M'Caw, 41-51 Royal Exchange, Cross Street Manchester M2 7BD Manchester M2 7BD (GB)

(54)	APPARATUS FOR TWO-STAGE FUSION OF FACE-TO-FACE POLYMERIC SHEETS