| 摘要 |
PURPOSE:To provide the titled coating composition capable of forming a thick coating film, and containing a film-forming component and a specific amount of an anti-sagging agent obtained by the reaction of a specific aminosilane compound, a hydroxylmonoamine and a polyisocyanate. CONSTITUTION:(A) An aminosilane of formula (R is C3H6 or C2H4NHC3H6; R' is CH3 or C2H5; n is 2 or 3) (preferably gamma-aminopropyltrimethoxysilane, etc.) is made to react with (B) a hydroxylmonoamine (preferably 2-aminoethanol) and (C) a polyisocyanate (preferably hexamethylene diisocyanate or its cyclic trimer). Preferably, the molar ratio of A/B is 3/97-80/20 and the ratio of the NCO group of the component C to the primary amino group of the components A and B is 0.8-1.2. The objective composition is produced by using a film-forming component together with 0.1-15wt% anti-sagging agent comprising the above reaction product.
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