| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a modified hydrocarbon resin having improved abrasion resistance and wettability and desirably used as a binder of a printing ink by reacting a specified unsaturated hydrocarbon with a fatty acid, anα,β- ethylenically unsaturated carboxylic acid, a divalent-metal compound, an alcohol and a natural resin under specified conditions. SOLUTION: This resin is obtained by a reaction among a 4-10C di or poly- unsaturated linear, branched or cyclic hydrocarbon or a mixed or non-mixed oligomer thereof (A) having a degree of oligomeration of 2-10, a fatty acid and/or a fatty acid ester (B), anα,β-ethylenically unsaturated carboxylic acid or anhydride thereof (C), a divalent-metal compound (D), an alcohol (E) and a natural resin or a natural resin acid (F). This reaction is performed in two or more stages. Component A is reacted with either of components B and F in the first stage, and formed polymer is reacted with at least one of components C, D and E in the subsequent stages.</p> |
