| 摘要 |
PURPOSE:To obtain a graft-modified alkyd resin having improved dispersibility of pigment and segregation in color mixing without using a pigment dispersant, by graft polymerizing a vinyl monomer containing phosphorus atom. to an alkyd resin. CONSTITUTION:The objective modified alkyd resin can be produced by using (A) an alkyd resin having unsaturated point to cause graft-copolymerization with the component B, preferably a condensation reaction product produced by using 0.01-5wt.% of an unsaturated dicarboxylic acid as a raw material for the production of an alkyd resin and grafting the component A with (B) a phosphorus atom-containing vinyl monomer, e.g. a compound of formula (R<1> is H or methyl; R<2> and R<3> are H, 1-8C alkyl, alkyl ether, etc.; A is 1-14C alkylene or alkylene having at least one ether bond) in an amount of 0.01-5%, preferably 0.05-3%, more preferably in combination with a nitrogen atom.- containing vinyl monomer.
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