In various aspects, the disclosure relates to polycarbonate compositions exhibiting improved impact strength, both multi axial and notched Izod, as well as thin-walled flame resistance while free or substantially free of bromine or chlorine flame retardant additives. The polycarbonate compositions may comprise non-bonding glass fiber, butyl tosylate, and/or a phosphorous based stabilizer.

The current disclosure provides reinforced aerogel compositions that are durable and easy to handle, have favorable performance in aqueous environments, have favorable insulation properties, and have favorable, reaction to fire, combustion and flame-resistance properties. Also provided are methods of preparing or manufacturing such reinforced aerogel compositions. In certain embodiments, the composition has a silica-based aerogel framework, reinforced with an open-cell macroporous framework, and includes one or more fire-class additives, where the silica-based aerogel framework comprises at least one hydrophobic-bound silicon and the composition or each of its components has desired properties.

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 that provides a flame-retardant synthetic resin composition excellent in flame retardance and in longitudinal and lateral balance in terms of mold shrinkage factor, and a flame-retardant synthetic resin composition using the same and a molded body thereof. A flame retardant composition contains 0.005 to 5 parts by mass of component (B) based on 100 parts by mass of component (A), wherein component (A) is phosphoric acid salt-based flame retardant and component (B) is one or more compounds each having a structure represented by the following general formula (1):

##STR00001##

In the formula, R.sup.1 to R.sup.4 each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R.sup.5 represents a direct bond or an alkanediyl group having 1 to 4 carbon atoms, M.sup.1 represents any of an alkali metal, an alkali earth metal, zinc, aluminum and a hydrogen atom, n is 1 and m is 0 when M.sup.1 represents an alkali metal or a hydrogen atom, n is 2 and m is 0 when M.sup.1 represents an alkali earth metal or zinc, and n is 1, 2 or 3 and m is an integer represented by 3-n when M.sup.1 represents aluminum.

A flame-retardant rubber composition containing the following components (A) to (E) and an outer diaphragm for rail vehicles are provided. The outer diaphragm composed of a cross-linked body of the flame-retardant rubber composition. Accordingly, the present disclosure ensures excellent rubber properties such as tensile strength and elongation at break, and exhibits good flame-retardancy. (A) Excluding (B) below, at least one selected from the group consisting of a diene-based rubber, an olefin-based rubber, a urethane rubber, and a silicone rubber. (B) An acid-modified polyolefin. (C) A metal hydroxide. (D) A phosphinic acid metal salt. (E) A cross-linking agent of component (A).

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##

The present invention relates to a fire, smoke and toxicity retardant (FST) polyamide thermoplastic mass usable for 3D printing which comprises at least one non-halogenated organic flame retardant in combination with at least one particulate inorganic flame retardant. Moreover, the present invention refers to uses of such FST polyamide thermoplastic mass for 3D printing. The invention further relates to methods of preparing a three-dimensionally shaped product by means of 3D printing based on such FST polyamide thermoplastic mass.

A resin composition, including resin and peroxide, is provided. The resin includes liquid rubber resin, polyphenylene ether resin, and a crosslinking agent. The sum of the liquid rubber resin, the polyphenylene ether resin, and the crosslinking agent is 100 parts by mass. The amount of the peroxide used is between 0.1 phr and 5 phr. The peroxide is composed of tertiary butyl cumyl peroxide and an inorganic compound.

A resin composition, including resin and peroxide, is provided. The resin includes liquid rubber resin, polyphenylene ether resin, and a crosslinking agent. The sum of the liquid rubber resin, the polyphenylene ether resin, and the crosslinking agent is 100 parts by mass. The amount of the peroxide used is between 0.1 phr and 5 phr. The peroxide is composed of tertiary butyl cumyl peroxide and an inorganic compound.

The invention relates to a method for producing an object by means of a fused deposition modeling method (FDM), from a construction material, wherein the construction material comprises a polycarbonate and a di-glycerol ester. The invention also relates to the use of a polycarbonate with improved flowability comprising a diglycerol as construction material in an additive fused deposition modeling method.