(19)

(11)

EP 0 131 619 A1

(12)

(43) Date of publication: 23.01.1985 Bulletin 1985/04 (21) Application number: 84900680.0 (22) Date of filing: 13.01.1984

(51) International Patent Classification (IPC):  C08K 3/ 36( . ) E01C 19/ 10( . ) E01C 7/ 18( . ) (86) International application number: PCT/US1984/000040 (87) International publication number: WO 1984/002709 (19.07.1984 Gazette 1984/17)

(84) Designated Contracting States: AT BE CH DE FR GB LI NL SE (30) Priority: 14.01.1983 US 19830457984 (71) Applicant: MANVILLE SERVICE CORPORATION Denver Colorado 80217 (US)	(72) Inventor: KIETZMAN, John, Howard Golden, CO 80401 (US) (74) Representative: Grättinger, Günter  Patentanwalt Almeidaweg 35 Postfach 16 49 D-8130 Starnberg D-8130 Starnberg (DE)