Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1990-09-27
1991-07-23
Kendell, Lorraine T.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152527, 152556, 428364, 428373, 428395, 428293, 428295, 57902, B60C 900
Patent
active
050335235
ABSTRACT:
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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Buyalos Edward J.
Millure David W.
Neal James G.
Rowan Hugh H.
Allied-Signal Inc.
Kendell Lorraine T.
Thrower William H.
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