| 摘要 |
<p>PURPOSE:To prepare a puncture sealing composition useful as tubeless tires and having excellent sealing properties in a wide temperature range, by compounding a copolymer or a specific acrylate and glycidyl compound with a hardener for epoxy resins. CONSTITUTION:(A) 100 parts by weight of a copolymer consisting of (a) 2-ethylhexyl acrylate and/or n-butyl acrylate and (b) a glycidyl compound (e.g. glycidyl methacrylate, etc.) (preferably 0.8-3 parts by weight on the basis of 100 parts by weight of the acrylates) is compounded with (B) preferably 0.5-5 parts by weight of a hardener for epoxy resins (e.g. diethylenetriamine, etc.). The compound is sprayed into a tire at room temperature to 160 deg.C and cured. EFFECT: Application processability is improved and flow is suppressed even at high temperature, therefore the compound is useful as a sealant for buildings and a sealing material for fuel tanks.</p> |
