| 摘要 |
Chelate-forming, anticorrosive epoxy coating compns. contained amine hardener mixed with 5-30% phenol carboxylic acid deriv. in an org. solvent. For example, modified aniline epoxy resin 450 parts was mixed with talc 200 parts, sedimentary barium sulfate 350 to give main component, and polyamide resin(amine value 450±20) 1000 parts and gallic acid 100 parts were reacted at 140-150≦̸C under the inert gas to give chelateforming epoxy coatings. The base compn. was mixed with the hardener soln. in 100:45 ratio, spray-coated on steel, and dried at 20≦̸C for 7 days to give a coating having good water and cold water spray resistance.
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