(19)

(11)

EP 0 468 002 A1

(12)

(43) Date of publication: 29.01.1992 Bulletin 1992/05 (21) Application number: 91901406.0 (22) Date of filing: 14.12.1990

(51) International Patent Classification (IPC):  B05D 7/ 14( . ) H05K 3/ 06( . ) G03F 7/ 16( . ) B05D 3/ 06( . ) (86) International application number: PCT/US1990/007468 (87) International publication number: WO 1991/008840 (27.06.1991 Gazette 1991/14)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 15.12.1989 US 19890451658 15.12.1989 US 19890451680 07.12.1990 US 19900621361 (71) Applicant: W.R. GRACE & CO.-CONN. Columbia, MD 21044 (US)	(72) Inventors: BROWNE, Alan, Robert Columbia, MD 21045 (US) BECKNELL, Alan, Frederick Jessup, MD 20794 (US) HART, Daniel, Joseph Baltimore, MD 21228 (US) ELZUFON, Betsy Owings Mills, MD 21117 (US) (74) Representative: UEXKÜLL & STOLBERG  Patentanwälte Beselerstrasse 4 D-22607 Hamburg D-22607 Hamburg (DE)