(19)

(11)

EP 0 656 987 A1

(12)

(43) Date of publication: 14.06.1995 Bulletin 1995/24 (21) Application number: 93919225.0 (22) Date of filing: 31.08.1993

(51) International Patent Classification (IPC):  C04B 24/ 26( . ) C04B 28/ 02( . ) C09K 8/ 487( . ) C04B 24/ 32( . ) C09K 8/ 46( . ) (86) International application number: PCT/EP1993/002348 (87) International publication number: WO 1994/005896 (17.03.1994 Gazette 1994/07)

(84) Designated Contracting States: BE CH DE DK FR GB LI (30) Priority: 04.09.1992 US 19920940429 04.09.1992 US 19920940430 04.09.1992 US 19920940553 04.09.1992 US 19920940581 04.09.1992 US 19920940608 (71) Applicant: BASF CORPORATION Parsippany, New Jersey 07054 (US)	(72) Inventor: SRIDHAR, Gopalkrishnan Woodhaven, MI 48183 (US) (74) Representative: Langfinger, Klaus-Dieter, Dr., et al  BASF Aktiengesellschaft, Patentabteilung ZDX - C 6 D-67056 Ludwigshafen D-67056 Ludwigshafen (DE)