A polymer composite material includes a blend of one or more thermoplastic polymers and one or more bio-based flame retardant additives, wherein the one or more bio-based flame retardant additives are present in an amount of 35 to 100 parts per 100 parts by weight of the one or more thermo-plastic polymers. A method of forming the polymer composite material includes: blending the one or more thermoplastic polymers and the one or more bio-based flame retardant additives together at a temperature between 140° C. and 230° C. to form the polymer composite material; forming an article from the polymer composite material; and cooling the formed article.

A polymer composite material includes a blend of one or more thermoplastic polymers and one or more bio-based flame retardant additives, wherein the one or more bio-based flame retardant additives are present in an amount of 35 to 100 parts per 100 parts by weight of the one or more thermo-plastic polymers. A method of forming the polymer composite material includes: blending the one or more thermoplastic polymers and the one or more bio-based flame retardant additives together at a temperature between 140° C. and 230° C. to form the polymer composite material; forming an article from the polymer composite material; and cooling the formed article.

A fireproof composition is constituted as an aqueous composition and has at least one sugar and magnesium chloride. The fireproof composition can be used for application to products to protect against fire, and can also be used for extinguishing forest, domestic, and/or industrial fires. A method for the preparation of the fireproof composition includes dissolving the at least one sugar and the magnesium chloride in water to form a solution, and adjusting the pH of the solution to between 6.0 and 7.5.

A fireproof composition is constituted as an aqueous composition and has at least one sugar and magnesium chloride. The fireproof composition can be used for application to products to protect against fire, and can also be used for extinguishing forest, domestic, and/or industrial fires. A method for the preparation of the fireproof composition includes dissolving the at least one sugar and the magnesium chloride in water to form a solution, and adjusting the pH of the solution to between 6.0 and 7.5.

Compositions, structures and methods are described that improve fire retardant characteristics of various material, and which can be used for protecting structures, devices, or components therein. In one example, a mixture suitable for imparting heat or cold blocking properties to an object is produced. The mixture includes a catalyst comprising particles that are 8 microns or less in diameter, a charring agent comprising particles that are 8 microns or less in diameter, and a blowing agent comprising particles that are 8 microns or less in diameter. The catalyst, the charring agent and the blowing agent are mixed together in equal portions by weight to produce the mixture suitable for imparting heat or cold blocking properties to an object.

Compositions, structures and methods are described that improve fire retardant characteristics of various material, and which can be used for protecting structures, devices, or components therein. In one example, a mixture suitable for imparting heat or cold blocking properties to an object is produced. The mixture includes a catalyst comprising particles that are 8 microns or less in diameter, a charring agent comprising particles that are 8 microns or less in diameter, and a blowing agent comprising particles that are 8 microns or less in diameter. The catalyst, the charring agent and the blowing agent are mixed together in equal portions by weight to produce the mixture suitable for imparting heat or cold blocking properties to an object.

A flame-retardant electric cable has a core including at least one electric conductor, an electrically insulating coating and an outermost layer made from a substantially thermoplastic, low smoke zero halogen flame-retardant polymer composition. The composition includes a polymeric base made of at least one polyethylene homopolymer or copolymer having a density of 0.94 g/cm.sup.3 at most. The composition further includes 60-64% by weight of a metal hydroxide, at least 2% by weight of an ammonium coated montmorillonite having average particle dimensions of from 5 to 20 μm, and a polysiloxane.

A flame-retardant electric cable has a core including at least one electric conductor, an electrically insulating coating and an outermost layer made from a substantially thermoplastic, low smoke zero halogen flame-retardant polymer composition. The composition includes a polymeric base made of at least one polyethylene homopolymer or copolymer having a density of 0.94 g/cm.sup.3 at most. The composition further includes 60-64% by weight of a metal hydroxide, at least 2% by weight of an ammonium coated montmorillonite having average particle dimensions of from 5 to 20 μm, and a polysiloxane.

The invention relates to an anti-vibration device (100), for example intended for a railroad application, comprising: a first frame (10), a second frame (20), a shock absorbing structure (30) for the vibrations, situated between the two frames (10, 20), and at least one fire barrier layer (40) at least partially covering the shock absorbing structure (30);
characterized in that said at least one fire barrier layer (40) is a polychloroprene-based elastomer including at least one fire retardance agent chosen from among alumina trihydrate or magnesium hydroxide.

A flame retardant product that contains an aqueous solution that includes a hydroxylated carbon-based component, an intumescent agent suitable for at least partially or even completely dehydrating the hydroxylated carbon-based component in such a way as to generate, under the effect of heat, a carbonaceous foam, and a thixotropic agent, selected to have a viscosity that increases as a result of water being added in the absence of shear. The solution has a sufficient concentration of the hydroxylated carbon-based component and the intumescent agent so that an addition of water to said solution increases the viscosity thereof in the absence of shear. The content by weight of the hydroxylated carbon-based component is greater than 10%.