发明名称 Tire core made from an improved polyester filament yarn
摘要 The method of making a pre-adherized polyester filament yarn with adhesion properties for rubber includes applying a pre-adherizing agent to a polyester filament yarn having a boiling water shrinkage value of <20% while spinning it at not less than 3200 m/min, heat treating the pre-adherized polyester filament yarn with hot air on a bobbin for several days at from 50 DEG to 90 DEG C., and then subjecting the conditioned POY to a single drawing step in which the take-off speed is 1.7 to 2.2 times faster than the inlet speed. Impregnated tire cord made from the polyester filament yarn so treated has a tensile strength of 60 to 70 cN/tex and a tempered shrinkage test value at 190 DEG C. of less than 3.5%, an adhesive power of 18 to 25 daN to rubber, an appearance grade of 2.5-4.0 and a dimensional stability value of greater than 24,000 cN/tex2.
申请公布号 US5576105(A) 申请公布日期 1996.11.19
申请号 US19960609455 申请日期 1996.03.01
申请人 RHONE - POULENC VISCOSUISSE S.A. 发明人 REINTHALER, PETER;MUELLER, ARMIN
分类号 B60C9/00;C08J5/06;D01F6/62;D01F11/08;D06M15/693;(IPC1-7):D02G3/00 主分类号 B60C9/00
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