Emulsion Paint of Aromatic Petroleum Resin II. Improvement On Poor Corrosion Resistance of Emulsion Paint Film

Abstract

Poor corrosion resistance of an emulsion paint film using the emulsion produced from an industrially produced aromatic petroleum resin with a thermally denaturated linseed oil, as corrosion inhibitor for metal plates, was improved much better by use of a suitable nonionic emulsifier Emulgen A-90 rather than cationic and anionic ones as wetting agent for pigments and by addition of a solvent as BuOAc as transient plasticiser in a little amount to the emulsion paint. It was also found that gloss of emul sion paint film formed was better than that without a solvent, which indicates more uniform film formation related to the affinity improvement between oil particles and pigments by plasticization of oil particles in addition of the solvent to the emulsion paint.