发明名称 |
PROCESS FOR PRODUCING 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 |
CA2002165(C) |
申请公布日期 |
2000.09.12 |
申请号 |
CA19892002165 |
申请日期 |
1989.11.03 |
申请人 |
ALLIED-SIGNAL, INC. |
发明人 |
BUYALOS, EDWARD J.;MILLURE, DAVID W.;NEAL, JAMES G.;ROWAN, HUGH H. |
分类号 |
C08G63/78;B60C9/00;C08J5/06;D01F6/62;D02G3/48;(IPC1-7):D01F6/62;B29D30/00 |
主分类号 |
C08G63/78 |
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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