FIRE-RETARDANT INTUMESCENT PAINT WITH INCREASED LIMIT OF FIRE RESISTANCE Russian patent published in 2020 - IPC C09D5/18 

FIELD: paint industry.

SUBSTANCE: invention relates to paint materials intended for protection of various metal structures, structures and materials, and can be used in construction industry, transport and in other areas where protection of surfaces from fire is required. Composition including vinyl chloride copolymer VKhVD 40 or copolymer of vinyl chloride with vinyl acetate, alkyd varnish semi-finished PF-053 or analogues, resin alkyd Resial 030, copolymer Acrylon, intumescent additives: chlorinated paraffin wax KhP-470, ammonium polyphosphate, micronised pentaerythritol, melamine; thixotropic additive, titanium dioxide pigment P and organic solvents: butyl acetate, white spirit and toluene and applied by airless or combined spraying, forms a fire-retardant intumescent coating with an increased fire-resistance limit of up to 150 minutes, can be applied at negative temperatures (up to -15 °C) with preservation of decorative properties and formation of spray thickness in 1 pass to thickness of 1.5–2 mm.

EFFECT: disclosed is fire-retardant intumescent paint with increased fire resistance.

1 cl, 4 tbl