Patent ID: 6736176
Filing Date: 2004-05-18
Classification: B60C,Y02T,Y10T

Abstract:
A tire comprising:a plurality of foamed hollow polymer particles arranged in an inside of a hollow doughnut-shaped tire, said foamed hollow polymer particles forming a composite body consisting of a continuous phase made of a polymeric material formed by shell portions of the foamed hollow polymer particles, and a gas encapsulated in a substantially spherically shaped closed cell thereof, wherein the composite body has a cell content of 80.00 vol % to 98.75 vol %, and an internal pressure at 25Â° C. in the closed cells of the composite body is not less than 150 kPa as an absolute pressure, wherein the continuous phase of the composite body is made of a resin having a polar functional group in their molecule and wherein the resin having a polar functional group in their molecule is at least one of a polyvinyl alcohol resin, an acrylonitrile copolymer, a vinylidene chloride copolymer, an acrylonitrile/styrene resin, a polyester resin and a nylon resin.