It would be helpful to provide a styrene-based resin molded body that has excellent dielectric constant, dielectric loss tangent, and color tone, and with little degradation in properties due to usage environment. The present disclosure is a styrene-based resin composition containing a styrene-based resin (A1) having styrene-based monomer units as repeating units. The styrene-based resin composition includes 6 μg or less of a catechol derivative contained in the styrene-based resin (A1) per gram of the styrene-based resin (A1), and the total amount of dimers of the styrene-based monomer units and trimers of the styrene-based monomer units contained in the styrene-based resin (A1) is 5000 μg or less per gram of the styrene-based resin (A1). The styrene-based resin composition has a dielectric constant of 3 or less and a dielectric loss tangent of 0.02 or less.

Provided herein is a polymer composition comprising a polyhydroxyamino ether (e.g., a crosslinked polyhydroxyamino ether) and printed circuit boards comprising the same.

Provided herein is a polymer composition comprising a polyhydroxyamino ether (e.g., a crosslinked polyhydroxyamino ether) and printed circuit boards comprising the same.

A first composition is disclosed that includes a fire-resistant thermoplastic resin. The fire-resistant thermoplastic resin includes 1-20 wt % of an aryl phosphate, includes 1-20 wt % of a phosphate polymer, and 60%-98% of a (meth)acrylic polymer, including units from at least one monomer, wherein the monomer is chosen from methyl methacrylate, acrylic acid, methacrylic acid, acrylic acid esters, methacrylic acid esters, acrylonitrile and maleic anhydride. The first composition may further include a fabric or a composite material that is embedded with the fire-resistant thermoplastic resin. In some instances, the aryl-phosphate and the phosphonate polymer synergistically reduce an effective heat of combustion, a peak heat release, or a flame time as compared to a second composition that contains only one of the aryl phosphate or the phosphonate polymer.

A first composition is disclosed that includes a fire-resistant thermoplastic resin. The fire-resistant thermoplastic resin includes 1-20 wt % of an aryl phosphate, includes 1-20 wt % of a phosphate polymer, and 60%-98% of a (meth)acrylic polymer, including units from at least one monomer, wherein the monomer is chosen from methyl methacrylate, acrylic acid, methacrylic acid, acrylic acid esters, methacrylic acid esters, acrylonitrile and maleic anhydride. The first composition may further include a fabric or a composite material that is embedded with the fire-resistant thermoplastic resin. In some instances, the aryl-phosphate and the phosphonate polymer synergistically reduce an effective heat of combustion, a peak heat release, or a flame time as compared to a second composition that contains only one of the aryl phosphate or the phosphonate polymer.

The present invention concerns a non-dust blend comprising tris(2-t-butylphenyl) phosphite.

The present invention concerns a non-dust blend comprising tris(2-t-butylphenyl) phosphite.

Provided are a flame retardant composition for expandable styrene resin with which an extrusion-foamed molded article having excellent flame retardancy and excellent heat resistance can be produced; a styrene-based resin composition; and an extrusion-foamed molded article of the styrene-based resin composition. The flame retardant composition for expandable styrene resin of the present invention comprises at least B1) tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether), (C) a zinc-modified hydrotalcite, and (D) a phosphoric acid ester-based compound, the component (B1) being contained in an amount of 10 to 98 mass % based on the total amount of the component (B1) and the component (D).

Provided are a flame retardant composition for expandable styrene resin with which an extrusion-foamed molded article having excellent flame retardancy and excellent heat resistance can be produced; a styrene-based resin composition; and an extrusion-foamed molded article of the styrene-based resin composition. The flame retardant composition for expandable styrene resin of the present invention comprises at least B1) tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether), (C) a zinc-modified hydrotalcite, and (D) a phosphoric acid ester-based compound, the component (B1) being contained in an amount of 10 to 98 mass % based on the total amount of the component (B1) and the component (D).

A polycarbonate resin composition comprising, 100 mass parts of (A1) a polycarbonate resin that contains a polycarbonate resin having a structural unit of the following general formula (1) and (A2) a polycarbonate resin having a structural unit of the general formula (2) in a mass ratio (A1)/(A2) of 100/0 to 10/90; 3 to 20 mass parts of a phosphorus flame retardant (B); 2 to 20 mass parts of a silicone flame retardant (C); and 3 to 100 mass parts of an inorganic filler (D), wherein the phosphorus flame retardant (B) is a phosphazene compound and/or a condensed phosphate ester, [C1] ##STR00001##