The present application relates to a field of a flame retardant polystyrene, and specifically discloses a preparation method for a flame retardant polystyrene. The preparation method for a flame retardant polystyrene includes the following steps: predissolving a brominated flame retardant containing a first active functional group in a reaction system of a styrene monomer to form a homogeneous solution; then, performing an end capping reaction by an olefin monomer containing a second active functional group to introduce a double bond at an end of the brominated flame retardant, so that it can be bonded to a polystyrene molecular chain by copolymerizing; performing a prepolymerization in a reactor to obtain a prepolymer; performing a post polymerization in the reactor or by extruding, to obtain a special material or a flame retardant masterbatch of the flame retardant polystyrene.

The present invention relates to a polyolefin composition comprising (a) a hindered amine light stabilizer of formula (1) as defined herein, (b) a hydrotalcite or an inorganic oxide, and (c) a hydroxylamine stabilizer or an amine oxide stabilizer, a flame retardant article comprising such composition, and to the use of components (b) and (c) for reducing odor in a polyolefin composition comprising a component (a).

Provided is a flame-resistant airbag having a low rate of combustion. The flame-resistant airbag is obtained by forming, on a cloth substrate, a cured film of a composition containing: (A) 100 parts by mass of a liquid organopolysiloxane containing an alkenyl group bonded to a silicon atom; (B) 5 to 100 parts by mass of a three-dimensional network-structured organopolysiloxane resin in which 0.05 to 0.15 mol/100 g alkenyl groups are bonded only to D units, the ratio of M units to T and/or Q units is 0.65 to 1.40, and hydroxyl group content is 0.040 mol/100 g or less; (C) 0.1 to 50 parts by mass micropulverized silica having a specific surface area of at least 50 m.sup.2/g; (D) an organohydrogen polysiloxane comprising a hydrogen atom bonded to a silicon atom, in an amount such that the number of hydrogen atoms bonded to silicon atoms in component (D) is 1 to 10 per total 1 alkenyl group bonded to a silicon atom in components (A) and (B); (E) an effective amount of a platinum group metal catalyst; and (F) 0.1 to 10 parts by mass of an organic silicon compound. The composition is applied in an amount of 5 to 150 g/m.sup.2.

The disclosure provides a forming method of a halogen-free flame-retardant material. The method includes the followings. A twin-screw extruder including a first zone and a second zone is used. A mixture in the first zone is mixed, melted and heated to form a molten mixture. The mixture includes a halogen-free flame retardant, a wear-resistant modifier, a thermoplastic elastomer, and an antioxidant. In addition, a silane-modified nano-silica aqueous suspension is introduced into the second zone to mix the silane-modified nano-silica aqueous suspension with the molten mixture from the first zone. The first zone and the second zone are continuously connected regions.

A resin composition is provided. The resin composition includes the following constituents: (A) an epoxy resin; (B) an amino group-containing hardener; and (C) a compound of formula (I), ##STR00001##
wherein, R.sup.11 to R.sup.16 and A1 to A2 in formula (I) are as defined in the specification, and the amount of the compound (C) of formula (I) is about 10 parts by weight to about 85 parts by weight per 100 parts by weight of the epoxy resin (A).

Provided is a textile made of filament yarn comprising a polymer composition that is durable and reusable having permanent or near-permanent antiviral properties and that includes a polymer, a metal ion, preferably a zinc and/or copper ion, and an optional phosphorus compound, wherein fibers and/or fabric formed from the polymer composition demonstrate antiviral properties and wherein the polymer is hygroscopic. The present disclosure also describes methods of forming the polymer compositions and methods of preparing fibers from the polymer composition.

Hoses include a tube, a reinforcement layer disposed outwardly from the tube, and a cover layer disposed outwardly from the reinforcement layer. The cover layer may be based on a first elastomeric blend of a first chlorinated polyethylene and chlorosulphonated polyethylene, a first flame-resistant composition, and a peroxide/sulfur curing system. The tube may be based upon a second elastomeric blend of a second chlorinated polyethylene and ethylene vinyl acetate rubber, a second flame-resistant composition, and a peroxide curing system. The first flame-resistant package and the second flame-resistant package includes one or more ingredients selected from the group consisting of antimony oxide, zinc molybdate/magnesium silicate complex, magnesium aluminum hydroxy carbonate, and aluminum trihydroxide. In some aspects, the hoses meet the testing performance requirements of EN 45545-2, HL2/R22 category standard, and EN854 type 2TE standard.

The present invention relates to flame-retardant moulding compositions comprising glass fibre and siloxane-containing polycarbonate block cocondensate, and also to a process for the production of these moulding compositions. The invention further relates to the use of these flame-retardant moulding compositions in injection-moulding and extrusion applications.

The disclosure concerns blended thermoplastic compositions comprising (a) from about 50 wt % to about 80 wt % of a polycarbonate component; (b) from greater than 0 wt % to about 12 wt % of an impact modifier component; (c) from about 10 wt % to about 40 wt % of a filler; and (d) from about 5 wt % to about 15 wt % of a flame retardant component comprising an oligomeric phosphate ester, wherein the oligomeric phosphate ester is a free flowing powder at 23° C.; wherein the blended thermoplastic composition has a ductility of 100% at 10° C. when measured by a Notched Izod Impact test performed according to ASTM D256; wherein the combined weight percent value of all components does not exceed 100 wt %; and wherein all weight percent values are based on the total weight of the composition.

Flame retardant polybutylene succinate (PBS) compounds using a non-halogenated intumescent flame retardant system are disclosed.