HIGH DIFFUSING POWER PAINT COMPOSITION FOR CATHODE ELECTRODEPOSITION OF CHEMICAL- AND WEAR-RESISTANT COATINGS WITH HIGH HARDNESS AND ANTICORROSION PROTECTION Russian patent published in 2013 - IPC C09D5/44 C09D163/10 

FIELD: chemistry.

SUBSTANCE: invention relates to aqueous compositions for making thin, chemical-resistant coatings by cathode electrodeposition on articles with an irregular shape, used in acidic media in abrasive load conditions (pumps, oil engineering etc). The composition is a paint system which contains the following components in the given ratios: 100 epoxy amine adduct as binder, 28-32 pigment paste (100%), 16-17 fluorinated rubber latex SKF-264V (60-70%), 2.5-3.1 powdered polyphenylene sulphide, 10-12 fluoroplastic dispersion F-4DV (55%), 0.4 acetic acid (100%) as a neutralising agent, 3.5-4.1 butylene glycol, 4.5-5.1 phenoxypropanol, 0.0018-0.0021 oxyethylated nonylphenol OP-10, demineralised water - the balance up to 1 litre. The epoxy amine adduct is modified by partially blocked toluene diisocyanate. The pigment paste is stabilised with the epoxy amine adduct. The polyphenylene sulphide used is modified with graphite and silicon carbide, which is pre- hydrophilised with the oxyethylated nonylphenol.

EFFECT: invention enables to obtain thin coatings with a uniform thickness, having chemical resistance, wear resistance, high hardness and anticorrosion protection.

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