DIPPED CORD MADE OF MELT SPUN FILAMENT YARNS OF AN ALTERNATING COPOLYMER AND A PROCESS FOR MANUFACTURING SAID CORD

摘要

Claimed are dipped cords made from melt-spun filament yarns of an alternating copolymer of alkenes and carbon monoxide having a cord twist factor in the range of 120 to 250 and a - breaking tenacity BT ~ 750 mN/tex, - TASE-2 > 70 mN/tex, and - HAS-2'-180.degree.C (5 mN/tex) < 3.6%, and the manufacture of these cords by subjecting drawn filament yarns to a dipping treatment. Preference is given to dipped cords, having a - breaking tenacity BT ~ 850 mN/tex, - TASE-2 > 75 mN/tex, which are obtainable from yarns wherein after dipsimulation the aspect ratio of the crystals 2A002/(A210+A310) varies between 2.3 and 2.7. The cords were found to be pre-eminently suitable to reinforce rubber articl es such as car tyres.