FLOOR MATERIAL AND SHOCK-ABSORBING MATERIAL TO BE USED FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a floor material in which microcapsules as a cushioning material are dispersed as micro balloons in rubber in order to reduce the weight and compressive displacement and enhance shock-absorbing effect and a shock- absorbing material using it. SOLUTION: At least a base material 2, a shock-absorbing material 3, and a surface material 4 are laminated to form a floor material 1. The shock- absorbing material includes isobuthane and/or isopenthane in an isolation wall and 0.2-20 pts.wt. of a kind of micro capsule containing polyacrylonitrile.methacrylonitrile copolymer and/or polymethacrylonitrile.methacrylonitrile.methylmethacrylate copolymer as the isolation wall material to 100 pts.wt. of rubber. The microcapsules are are dispersed in rubber as microballoons. The shock-absorbing material is a vulcanized material having a specific gravity of 0.2-0.8.