(19)

(11)

EP 1 264 019 A2

(12)

(88) Date of publication A3: 31.01.2002 (43) Date of publication: 11.12.2002 Bulletin 2002/50 (21) Application number: 01920379.3 (22) Date of filing: 15.03.2001

(51) International Patent Classification (IPC)7: D01G 1/10, D01D 5/00 (86) International application number: PCT/US0108/230 (87) International publication number: WO 0106/8962 (20.09.2001 Gazette 2001/38)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 15.03.2000 US 189531 P (71) Applicant: SHELL OIL COMPANY Houston,Texas 77252-2463 (US)	(72) Inventors: CASEY, Paul, Karol Katy, TX 77449 (US) DANGAYACH, Kailash Houston, TX 77079 (US) OLIVERI, Linda, Harvey Katy, TX 77450 (US) SHIFFLER, Donald, Albert Kinston, NC 28504 (US) (74) Representative: Zeestraten, Albertus Wilhelmus Joannes  Shell International B.V.,Intellectual Property Services, IPG/3,P.O. Box 384 2501 CJ The Hague 2501 CJ The Hague (NL)