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Reaction type hotsutomeruto adhesion agent composition
Reaction type hotsutomeruto adhesion agent composition
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机译:反应型热熔胶粘剂组合物
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摘要
PURPOSE:To obtain the title composition which can develop adhesive power when in use without deterioration of the initial adhesive strength, by using as its principal constituents a thermoplastic rubber and a urethane prepolymer containing a specified mixed polyol and polyisocyanate. CONSTITUTION:An adhesive composition composed mainly of a thermoplastic rubber and a urethane prepolymer containing a polyisocyanate and a mixed polyol comprising a hydroxyl-terminated hydrocarbon polyol and a polyoxybutylene glycol. The urethane prepolymer content of the composition is preferably 20-70wt%. The weight ratio of the hydroxyl-terminated hydrocarbon polyol to the polyoxybutylene glycol is preferably 80/20-20/80.
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