A new quick-drying alkyd resin was synthesized by using oleic acid,benzoic acid,pentaerythritol and phthalic anhydride as raw materials and xylene as solvent,modified by trimethylolpropane and trimellitic anhydride.The best process conditions was obtained by studying the effects of different conditions on the drying,oxidation resistance and hardness of quick drying alkyd resin.The optimum polymerization temperature was about 230℃,excess of alcohol was about 1.2.The modified alkyd varnish has a hardness of 0.5,a surface dry time of 0.22 h and s...