| 摘要 |
PURPOSE:To obtain a pasty vermin-controlling agent to be filled in the passage such as cleavage and drain pipe, etc., of vermin such as cockroach, fly, etc., by kneading a vermin-controlling agent with a diisocyanate prepolymer having ether bond or ester bond. CONSTITUTION:The objective vermin-controlling paste can be produced by kneading a vermin-controlling agent with a diisocyanate prepolymer having ether bond [especially a prepolymer of formula I (m is 3-5; n is 10-25) and preferably having a molecular weight of 700-2,000] or a diisocyanate prepolymer having ester bond (especially a prepolymer of formula II and preferably having a molecular weight of 1,200-2,500]. The controlling agent hardens in contact with moisture in air. It can be filled in a cleavage, etc., in a manner similar to coking material or sealing material, applied to the surroundings of precision apparatuses or vending machines and easily released after use.
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