| 摘要 |
PURPOSE:To obtain the title composition having excellent initial drying characteristics, initial water resistance, blocking resistance, and storage stability, by dissolving or dispersing a specified copolymer resin in water. CONSTITUTION:3-65wt% (semi)drying oil fatty acid is reacted with a vinyl monomer containing alicyclic oxirane groups, represented by, e.g., formulas I-III (wherein R1 is H or methyl; R2 is a 1-6C divalent aliphatic saturated hydrocarbon group; R3 is a 1-10C divalent hydrocarbon group) at 60-220 deg.C to give a modified unsaturated monomer (A). 100pts.wt. monomer mixture comprising 5-98pts.wt. component A, 0-20pts.wt. ethylenically unsaturated carboxylic acid (B) of formula IV or V [wherein R4 is H or a lower alkyl; R5 and R4 or carboxyl; R6 is H or a (carboxy) lower alkyl; m is 1-6], and 0-95pts.wt. alpha,beta-ethylenically unsaturated monomer (C) other than components A and B (e.g., methyl acrylate) is copolymerized in the presence of an inert solvent at 0-180 deg.C for 1-20hr to give a copolymer resin having a number- average molecular weight of 500-1,000,000. This copolymer resin is then neutralized for dissolving or dispersing it in water.
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