METHOD OF PRODUCING ANTICORROSION COMPOSITION Russian patent published in 1995 - IPC

FIELD: protection of metallic article against corrosion. SUBSTANCE: method involves mixing 1/4-3/4 part of film-forming agent in organic solvent at 60-70 C in the presence of 5-75 mas. p. atactic polypropylene up to gel formation, dispersing other part of film-forming agent solution with pigment followed by combining pigment paste with gel. Properties of proposed coating: water absorption is 0.8-1.3% impact strength is 50 cm; bending elasticity is 1 mm; film adhesion by method of grate cuts is 1 point; critical surface tension is 35-48 erg/cm²; stability in 3% NaCl solution is 150-365 days. EFFECT: enhanced quality of composition. 1 tbl