Flame retardant for mesh sheets and flameproof mesh sheet including the same
AssigneesKyowa Kabushiki Kaisha, Saiji Nozaki
InventorsSaiji Nozaki, Kuniaki Kamiya
Life of this patent
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Abstract
A flame retardant including red phosphorus in an amount of 1.5 to 15 parts by weight and an ammonium polyphosphate compound in an amount of 10 to 70 parts by weight, based on 100 parts by weight of the solid content of an aqueous dispersion of an ethylene-vinyl acetate-acrylate copolymer having an ethylene content of 2 to 30 wt %, a vinyl acetate content of 40 to 88 wt %, an acrylate content of 10 to 50 wt % and a resin solid content of 35 to 75 wt %. The flame retardant is useful to flameproof mesh sheets.
Claims14
A flame retardant useful for mesh sheets comprising a halogen free aqueous dispersion of an ethylene-vinyl acetate-acrylate copolymer, red phosphorus in an amount of 1.5 to 15 parts by weight and an ammonium polyphosphate compound in an amount of 10 to 70 parts by weight, based on 100 parts by weight of the solid content of the aqueous dispersion of the ethylene-vinyl acetate-acrylate copolymer, wherein the copolymer has an ethylene content of 2 to 30 wt %, a vinyl acetate content of 40 to 88 wt %, an acrylate content of 10 to 50 wt %, and a resin solid content of 35 to 75 wt %.
A flame retardant useful for mesh sheets prepared by mixing a halogen free aqueous dispersion of an ethylene-based .alpha.-olefin copolymer having a resin solid content of 20 to 45 wt % with an aqueous dispersion of a halogen free ethylene-vinyl acetate-acrylate copolymer having an ethylene content of 2 to 30 wt %, a vinyl acetate content of 40 to 88, an acrylate content of 10 to 50 wt % and a resin solid content of 35 to 75 wt %, in a solid content weight ratio of 10:90 to 70:30, and adding red phosphorus in an amount of 1.5 to 15 parts by weight and an ammonium polyphosphate compound in an amount of 10 to 70 parts by weight, based on 100 parts by weight of the total resin solid content.
A flame retardant useful for mesh sheets prepared by mixing a halogen free aqueous dispersion of a polyurethane having a resin solid content of 25 to 75 wt % with a halogen free aqueous dispersion of an ethylene-vinyl acetate-acrylate copolymer having an ethylene content of 2 to 30 wt %, a vinyl acetate content of 40 to 88 wt %, an acrylate content of 10 to 50 wt % and a resin solid content of 35 to 75 wt %, in a solid content weight ratio of 10:90 to 90:10, and adding red phosphorus in an amount of 1.5 to 15 parts by weight and an ammonium polyphosphate compound in an amount of 10 to 70 parts by weight, based on 100 parts by weight of the total resin solid content.
A flame retardant useful for mesh sheets prepared by mixing a halogen free aqueous dispersion of an ethylene-based .alpha.-olefin copolymer having a resin solid content of 20 to 45 wt % and a halogen free aqueous dispersion of a polyurethane having a resin solid content of 25 to 75 wt % with a halogen free aqueous dispersion of an ethylene-vinyl acetate-acrylate copolymer having an ethylene content of 2 to 30 wt %, a vinyl acetate content of 40 to 88 wt %, an acrylate content of 10 to 50 wt % and a resin solid content of 35 to 75 wt %, in a solid content weight ratio of 10:10:80 to 50:70:10 and adding red phosphorus in an amount of 1.5 to 15 parts by weight and an ammonium polyphosphate compound in an amount of 10 to 70 parts by weight, based on 100 parts by weight of the total resin solid content.
Dependencies are inferred from the claim text.