Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

The invention relates to a phosphorous containing monomer and a process thereof. Furthermore, the invention relates to a phosphorous containing polymer comprising said monomer and a production process thereof. The phosphorous containing polymer of the invention is useful as flame-retardant polymer. Additionally, the invention relates to a thermoplastic polymer composition comprising said phosphorous containing polymer and optionally a further thermoplastic polymer. The thermoplastic polymer composition can be used for the production of molded articles or yarns having excellent flame-retardant properties in order to ensure adequate fire protection.

A structural flame retardant high strength low exothermic polymer grouting material for consolidating, belonging to a technical field of polyurethane material, is produced by combined the polyether polyol and the modified isocyanate in a weight ratio of 100:(100-160), leading to internal reaction temperature ≤100° C., strength ≥60 mPa, bonding ≥3 mPa, oxygen index ≥28% while no halogen and no effect on water quality, odor level (80° C.) ≤3.5, and fog test ≤5 mg (which means no physical additive flame retardant is diffused into the environment). In particular, with no halogen, which is known as environmental hormones, in the plasticizers, there will be less combustion smoke, wherein the present invention will not release corrosive or irritating hydrogen halide gas, nor produce toxic carcinogens polybrominated benzoxins and polybrominated dibenzofurans, thereby avoiding the long-term impact of the material on the environment.

Provided is a flame-retardant resin composition containing a thermoplastic resin and a polysaccharide, wherein the polysaccharide includes an acidic polysaccharide composed of one or more selected from the group consisting of a polysaccharide having an acidic functional group, a derivative of the polysaccharide having an acidic functional group in which a site other than the acidic functional group is modified, and a salt thereof; and a total number of the acidic functional group and the salt thereof per monosaccharide unit in the acidic polysaccharide is in the range of 0.2 to 1.5.

The present invention provides an epoxy compound which is 2,2′,7,7′-tetraglycidyloxy-1,1′-binaphthalene. Also, the present invention provides a method for producing [1,1′-binaphthalene]-2,2′,7,7′-tetraol, the method including a step of bringing a crude product produced by dimerization reaction of naphthalene-2,7-diol or a naphthalene-2,7-diol derivative into contact with an aromatic solvent; a step of separating [1,1′-binaphthalene]-2,2′,7,7′-tetraol dissolved in the aromatic solvent from insoluble substances; and a step of removing the solvent from a solution of [1,1′-binaphthalene]-2,2′,7,7′-tetraol. The present invention also provides a method for producing an epoxy compound, the method including reacting [1,1′-binaphthalene]-2,2′,7,7′-tetraol or [1,1′-binaphthalene]-2,2′,7,7′-tetraol monohydrate with epihalohydrin.

The present invention relates to flame-retardant moulding compositions comprising 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 present disclosure concerns foamed thermoplastic compositions exhibiting improved multi-axial impact strength. The foamed thermoplastic compositions can be employed in a number of requiring impact strength and flame performance.

The present invention provides a flame-retardant engineering plastic and a preparation method thereof. The flame-retardant engineering plastic contains a halogen-free flame retardant represented by the formula I as a component of raw materials. The addition of the flame retardant gives good flame retardancy and excellent mechanical properties to the engineered plastic. The engineering plastic is prepared by the raw materials comprising the following components in parts by mass: 40-60 parts of PC, 20-40 parts of epoxy resin, 10-20 parts of ABS and 5-15 parts of flame retardant. The engineering plastic prepared by the present invention has a bending strength which can be up to 82.4-84 MPa, a tensile strength of up to 65.7-66.6 MPa, a notched impact strength of up to 26.3-27 J/m, a melt index of 12.6-15, and an oxygen index of 26.2-27.5%, and thus has excellent mechanical properties and good flame retardancy.

A composite material having at least two layers of reinforcing fibers impregnated with a curable resin; an interlaminar region formed between adjacent layers of reinforcing fibers; and a combination of polymeric toughening particles and fire-retardant particles in the interlaminar region.

Disclosed is a composition that can impart a drip preventing effect together with an excellent heat release suppressing effect to a resin, and that enables the resin to exhibit an excellent color tone, by being mixed with the resin. The composition includes a component (A) and/or a component (B), and a component (C). It is preferable that the composition contains the component (C) in an amount of 0.1 to 50 parts by mass relative to 100 parts by mass of a total of the components (A) and (B). The component (A) is a (poly)phosphate compound represented by General Formula (1). ##STR00001## The component (B) is a (poly)phosphate compound represented by General Formula (3). ##STR00002## The component (C) is a hydrous magnesium silicate.