RADIAL TIRE WITH IMPROVED ENDURANCE
PURPOSE:To prevent corrosion of a steel belt due to rainwater by using an open twist steel cord with a specific rate of elongation, for a belt layer steel cord, and by using a blended rubber which is formed by matching a specific amount of a liquid rubber having an active radical, for a buried rubbe...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English |
Published |
06.09.1983
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | PURPOSE:To prevent corrosion of a steel belt due to rainwater by using an open twist steel cord with a specific rate of elongation, for a belt layer steel cord, and by using a blended rubber which is formed by matching a specific amount of a liquid rubber having an active radical, for a buried rubber. CONSTITUTION:3-5 filament strings of a belt layer steel cord which is composed of a rubber coated steel cord surrounding the crown outer circumferential part of carcass are twisted and made into an open twisted steel cord 1 with 0.1-0.4% rate of elongation extersive in 0.2-5kg loading range per cord, for this usage. A blended rubber obtained by matching a liquid rubber with viscosity average molecular weight of 500-50,000 having a polarity functional group such as hydroxyl group, with polymer molecules such as polybutadiene etc., in 2- 30wt% in comparison with other rubber components, is used as a buried rubber. By the above-said composition, both the uniformity and the endurance of tire can be improved. |
---|---|
Bibliography: | Application Number: JP19820031125 |