EP 0617743 B1 19990714 - DIRT-REPELLENT MONOFILAMENT FOR PAPER MACHINE FILTERS, PROCESS FOR ITS PRODUCTION AND ITS USE
Title (en)
DIRT-REPELLENT MONOFILAMENT FOR PAPER MACHINE FILTERS, PROCESS FOR ITS PRODUCTION AND ITS USE
Title (de)
SCHMUTZABWEISENDES MONOFILAMENT FUER PAPIERMASCHINENSIEBE, VERFAHREN ZU DESSEN HERSTELLUNG UND VERWENDUNG
Title (fr)
MONOFILAMENT ANTISALISSURES POUR TAMIS DE MACHINE A PAPIER, SON PROCEDE DE FABRICATION ET SON APPLICATION
Publication
Application
Priority
- CH 273492 A 19920901
- CH 9300206 W 19930817
Abstract (en)
[origin: US5472780A] PCT No. PCT/CH93/00206 Sec. 371 Date Apr. 29, 1994 Sec. 102(e) Date Apr. 29, 1994 PCT Filed Aug. 17, 1990 PCT Pub. No. WO94/05835 PCT Pub. Date Mar. 17, 1994.The soil-repellent monofilament for paper machine wire-cloths consists of at least 85% by weight of polyethylene terephthalate having a viscosity index (V.I.) of at least 96 dl/g and an added copolymer prepared from alkenes and perfluoroalkenes having a melting point from 255 DEG to 275 DEG C. To make the soil-repellent monofilament 1.5 to 5% by weight of tetrafluoroethylene is included by addition to the polymer melt of polyethylene terephthalate prior to extrusion. The soil-repellent monofilament produced by this method has a soiling index of <2 after 5 soiling and cleaning cycles.
IPC 1-7
IPC 8 full level
C08L 67/02 (2006.01); C08L 67/00 (2006.01); D01F 6/62 (2006.01); D01F 6/92 (2006.01); D21F 7/08 (2006.01)
CPC (source: EP US)
D01F 6/92 (2013.01 - EP US); Y10S 162/903 (2013.01 - EP US); Y10T 428/2913 (2015.01 - EP US); Y10T 428/2915 (2015.01 - EP US); Y10T 428/2929 (2015.01 - EP US); Y10T 428/2969 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9405835 A1 19940317; AT E182185 T1 19990715; AU 4696793 A 19940329; AU 670313 B2 19960711; CA 2122372 A1 19940317; CA 2122372 C 20030325; DE 59309695 D1 19990819; EP 0617743 A1 19941005; EP 0617743 B1 19990714; JP 2000000067 U 20000929; JP H07500884 A 19950126; US 5472780 A 19951205; US 5514472 A 19960507
DOCDB simple family (application)
CH 9300206 W 19930817; AT 93917512 T 19930817; AU 4696793 A 19930817; CA 2122372 A 19930817; DE 59309695 T 19930817; EP 93917512 A 19930817; JP 2000001614 U 20000317; JP 50671993 A 19930817; US 24066494 A 19940429; US 51353095 A 19950810