MITE-REPELLING POLYURETHANE FOAM, MITE-REPELLING POLYURETHANE ELASTOMER AND MITE-REPELLING POLYURETHANE COATING MATERIAL

摘要

PURPOSE:To provide the subject polyurethane foam, polyurethane elastomer and polyurethane coating composition containing a pyrethrin dispersed therein and having excellent mite-repelling properties. CONSTITUTION:(A) A mite-repelling polyurethane foam composed of (A1) a polyol, (A2) an organic isocyanate, (A3) a catalyst, (A4) a foaming agent and (A5) a pyrethrin (preferably synthetic pyrethrin such as allethrin) which is the insecticidal component contained in the ovary of a pyrethrum so that the component (A5) may be contained in an amount of 0.03-7 pts.wt. based on 100 pts.wt. of the total quantity of (A1) and (A2). (B) A mite-repelling polyurethane elastomer composed of (A1), (A2), (A3), (A5) and a crosslinking agent so that the component (A5) may be contained in an amount of 0.03-7 pts.wt. based on 100 pts.wt. of the total quantity of (A1), (A2) and a crosslinking agent. (C) A mite- repelling polyurethane coating composition composed of a coating base material containing (A1) and (A2) and (A5) so that the component (A5) may be contained in an amount of 0.03-7 pts.wt. based on 100 pts.wt. of the total amount of (A1) and (A2).