发明名称 |
High strength polyester yarn for improved fatigue resistance |
摘要 |
High strength polyester multifilament yarn of improved dimensional stability, which has the proper combination of an intrinsic viscosity of at least 0.90, relatively low work loss and a high degree of toughness, is incorporated as tire cord into a rubber tire for reinforcement to provide an important improvement in fatigue life and retained fatigue strength. The continuous melt-spin process comprises the steps of feeding prepolymer to a first finisher vessel to achieve at least 0.4 intrinsic viscosity transferring polymer to a second finisher vessel for a period sufficient to achieve an intrinsic viscosity of at least 0.95, and supplying this polymer to an extrusion spinnerette.
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申请公布号 |
US4975326(A) |
申请公布日期 |
1990.12.04 |
申请号 |
US19880280764 |
申请日期 |
1988.12.07 |
申请人 |
ALLIED-SIGNAL INC. |
发明人 |
BUYALOS, EDWARD J.;MILLURE, DAVID W.;NEAL, JAMES G.;ROWAN, HUGH H. |
分类号 |
B60C9/00;D01F6/62 |
主分类号 |
B60C9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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