(19)

(11)

EP 1 301 258 A2

(12)

(88) Date of publication A3: 28.03.2002 (43) Date of publication: 16.04.2003 Bulletin 2003/16 (21) Application number: 01946017.9 (22) Date of filing: 31.05.2001

(51) International Patent Classification (IPC)7: B01D 19/00 (86) International application number: PCT/US0117/563 (87) International publication number: WO 0109/1877 (06.12.2001 Gazette 2001/49)

(84) Designated Contracting States: BE DE ES FR GB IT NL Designated Extension States: AL LT LV MK RO SI (30) Priority: 31.05.2000 US 208183 P (71) Applicant: KRATON Polymers Research B.V. 1031 CM Amsterdam (NL)	(72) Inventors: FLORES, Joe, Jerry Sugar Land, TX 77479 (US) JEAN, Rong-Her Sugar Land, TX 77479 (US) MA, Chin-Yan, George Sugar Land, TX 77479 (US) (74) Representative: Kortekaas, Marcel C. J. A.  KRATON Polymers Research B.V.,Intellectual Property Services,P.O. Box 37666 1030 BH Amsterdam 1030 BH Amsterdam (NL)