BIOCIDAL POWDER COMPOSITION Russian patent published in 2019 - IPC C09D5/14 C09D5/03 C09D163/00 C09D167/00 

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for applying polymer powder coatings containing bactericidal and biocidal additives. Disclosed are compositions based on epoxy carboxyl-containing polyester resins, mixtures thereof and polyhexamethyleneguanidine hydrochloride as a biocidal ingredient. Biocidal powder coating composition consists of solid epoxy resin based on bisphenol A with an epoxy equivalent of 715–930 g/mol and/or a carboxyl-containing polyester with an acid number of 26–53 mg KOH/g, a hardener if necessary, a dispensing regulator, benzoin, a pigment and/or filler, and also contains a biocidal additive - polyhexamethylene guanidine hydrochloride together with dicyandiamide in the following ratio, wt. parts: epoxy diane resin 0–83.1, carboxyl-containing polyester 0–85.4, polyhexamethyleneguanidine hydrochloride 4.5–8, dicyandiamide 1.5–7.4, pigments 0–40, fillers 0–12, dispensing regulator 0.5–2.1, hardener if necessary 1.7–4.5, benzoin 0.2–0.7.

EFFECT: technical result is providing coatings of metal and non-metal surfaces of articles and structures in places susceptible to contamination, or mass accumulation of people.

1 cl, 2 tbl, 10 ex