COATING COMPOSITION FOR WOODEN BUILDING MATERIAL AND METHOD FOR PREVENTING SCUFFING OF WOODEN SUBSTRATE FOR BUILDING MATERIAL USING THE SAME

摘要

PURPOSE: To obtain a coating compsn. for a wooden building material which is useful for making the conventionally unavoidable grinding step as simple as possible and lowers the degree of grinding to thereby prevent the scuffing of the substrate of the building material by compounding an ultraviolet-curable coating material with a specific silane coupling agent. ;CONSTITUTION: This compsn. contains 100 pts.wt. ultraviolet-curable coating material and 0.1-5 pts.wt. silane coupling agent represented by formula I or II [wherein each R¹ is independently methyl or ethyl; and R² is vinyl, γ- methacryloxypropyl, γ-glycidoxypropyl, β-(3,4-epoxycyclohexyl)ethyl, γ- aminopropyl, N-β-aminoethyl-γ-aminopropyl, N-phenyl-γ-aminopropyl, γ- chloropropyl, or γ-mercaptopropyl] and may further contain up to 50 pts.wt. polyisocyanate.;COPYRIGHT: (C)1996,JPO