Method of producing an aqueous coating composition

Details Method of producing an aqueous coating composition Method of producing an aqueous coating composition

C - Chemistry, Metallurgy

09

D

C09D 163/10 (2006.01) C08F 283/10 (2006.01) C09D 151/08 (2006.01)

Patent

CA 2115448

Abstract Process for the preparation of an aqueous coating com- position, aqueous coating compositions, and the use thereof for coating packaging containers The present invention relates to a process for the preparation of an aqueous coating composition con- taining a carboxyl-containing epoxy resin having an acid number in the range from 5 to 200 mg of KOH/g and having an epoxide equivalent weight in the range from 1000 to 40,000, optionally crosslinking agents, organic solvents, optionally conventional assistants and addi- tives, and optionally pigments and fillers. The organic binder solution is neutralized using a tertiary amine in the temperature range from 60°C to 120°C. This is followed by dispersion in water, with the proviso that at least 95% of the epoxide groups of the epoxy resin have been reacted. The aqueous coating compositions prepared by the process are preferably used for coating cans.

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