| 摘要 |
<p>PURPOSE:The titled composition, suitable for coating a tinplate etc., having improved adhesivity to a metal and air-drying properties, and comprising a dicyclopentadiene-modified unsaturated alkyd reacted or mixed with a specific compound. CONSTITUTION:A composition comprising (A) a compound obtained by adding (b) a monoepoxycompound having a beta,gamma-unsaturated ether group, e.g. allyl glycidyl ether, to the carboxyl group of (a) a dicyclopentadiene-modified unsaturated alkyd or (B) a mixture of an unsaturated alkyd prepared by the ring-opening copolymerization of (c) an alpha,beta-unsaturated dicarboxylic acid anhydride, e.g. maleic anhydride, with (d) the compound (b) with (a). A condensation product of maleic anhydride and phthalic anhydride with diethylene glycol and dicyclopentadiene through dehydration may be used as (a).</p> |
