FILM-FORMING COMPOSITIONS OBTAINED FROM ACYCLIC CARBONATES OR POLYAMINES, PREPARATION METHOD THEREOF AND COATED ARTICLE Russian patent published in 2010 - IPC C09D5/44 C08G59/56 C08L79/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a film-forming composition capable of electrodeposition. The film-forming composition is a product of reacting a) a polyamine which contains a primary amine group and a secondary amine group and b) an acyclic carbonate. The polyamine does not contain a polyfunctional amine which contains at least one primary or secondary amine group another functional group containing active hydrogen. The polyamine contains diethylene triamine, dipropylene triamine and/or bis-hexamethylene triamine. The acyclic carbonate contains dimethylcarbonate, diethylcarbonate, methylethylcarbonate, dipropylcarbonate, methylpropylcarbonate and/or dibutylcarbonate. The film-forming composition also contains an acrylic polymer. The acrylic polymer is obtained from ethylene-unsaturated monomers containing an epoxy group, and/or grafted copolymers of acrylic polymers and polyepoxides. Described also is a method of preparing a film-forming composition and a metal substrate partially coated with the film-forming composition. The method of preparing the film-forming composition involves mixing polyamine which contains a primary amine group and a secondary amine group and an acyclic carbonate. Mixing is done at temperature between 22°C and 100°C.

EFFECT: film-forming composition capable of electrodeposition enables to obtain a coating with good physical and mechanical properties.

19 cl, 4 tbl, 20 ex