Pneumatic tire
A technology for pneumatic tires and treads, applied to tire parts, tires, wheels, etc., can solve problems such as insufficient countermeasures, and achieve the effect of preventing sharp decline
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[0044] Set tire size to 205 / 65R15 and tire construction to figure 1 With the structures shown, a conventional tire (corresponding to Example 1 in JP-A-2003-183623 ) and a tire of the present invention using an adhesive sealant as the puncture prevention layer were manufactured. In addition, in each tire, the thickness of the puncture prevention layer was set to 5 mm, and as the gel sheet of the tire of the present invention, a gel sheet mainly composed of ethylene-styrene copolymer (penetration: 60 , Oscar C-type hardness: 15, compression permanent strain rate 8%).
[0045] After assembling each tire on the rim, fill it with an air pressure of 210kPa, and run it continuously at a speed of 90km / h for 8 hours through an indoor roller testing machine, and then investigate the left and right ends of the puncture prevention layer on the inner surface of the tire after running. Offset (movement) condition.
[0046] As a result, in the conventional tire, the width of the puncture p...
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