Synonyms: Castor oil, polymer with dipropylene glycol, glycerol, maleic anhydride and phthalic anhydride;Castor oil, dipropylene glycol, glycerol, maleic anhydride, phthalic anhydride polymer;castor oil, polymer with dipropylene glycol, glycerol, maleic anhydride and pht;castor oil/maleic-phthalic anhydride/glycerol alkyd resin