(19)

(11)

EP 0 197 923 A1

(12)

(43) Date of publication: 22.10.1986 Bulletin 1986/43 (21) Application number: 84903857.0 (22) Date of filing: 11.10.1984

(51) International Patent Classification (IPC):  B27N 3/ 00( . ) C08L 97/ 02( . ) B29C 35/ 02( . ) E04C 2/ 16( . ) (86) International application number: PCT/US1984/001639 (87) International publication number: WO 1986/002292 (24.04.1986 Gazette 1986/09)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (71) Applicants: EGGAN, Bernadine A. Lake Forest, IL 60045 (US) MIZE, David L. Vienna, IL 62995 (US) BULLOCK, Ralph Carlyle, IL 62231 (US)	(72) Inventor: BULLOCK, Ralph Carlyle, IL 62231 (US) (74) Representative: Downey, William Gerrard  Wilson, Gunn, M'Caw & Co., 41-51 Royal Exchange, Cross Street Manchester M2 7BD Manchester M2 7BD (GB)