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Tires

  • US 20010042580A1
  • Filed: 05/14/2001
  • Published: 11/22/2001
  • Est. Priority Date: 02/04/2000
  • Status: Active Grant
First Claim
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1. In a tire arranging a composite body consisting of a continuous phase made of a resin and many closed cells in an inside of a hollow doughnut-shaped tire, an improvement wherein the composite body has a cell content of 80.00 vol % to 98.75 vol % and an internal pressure at 25°

  • C. in the closed cell included therein is not less than 150 kPa as an absolute pressure.

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