| 摘要 |
PROBLEM TO BE SOLVED: To provide a one-pack moisture-curing sealing material which is excellent in weatherability, storage stability, cured properties, coating staining properties and coating adhesion and improved in curing rate and above all, does not require priming. SOLUTION: A one-pack moisture-curing type sealing material comprises (A) an acrylic polymer-containing isocyanate-terminated urethane prepolymer which can be obtained by reacting an acrylic polymer-containing polyol having been obtained by polymerizing an acrylate ester in a polyoxyalkylene ether type polyol with a polyisocyanate and (B) aγ-isocyanate alkylalkoxy-silane, and, if necessary, further (C) a polyethylene glycol diester and/or (D) a bis (morpholinoethyl ether).
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