Abstract: Intumescent coating composition comprising a polyisocyanate, a polyfunctional isocyanate-reactive compound and an intumescent ingredient, wherein the intumescent ingredient contains at least one or more compounds containing phosphorus, nitrogen and boron atoms and the weight ratio phosphorus to nitrogen in said intumescent ingredient is between 0.5/1 to 1.5/1 and the amount of boron is from 1 to 5 wt % based on the coating composition.

Abstract: The invention relates to a formulation suitable to provide polyurethane, the formulation comprising (a) at least one polyurethane forming mixture; (b) at least one phosphate component selected from the group consisting of ammonium polyphosphate (APP) and melamine phosphates, and mixtures thereof, and; (c) at least one metal or metalloid oxide particle having a maximum particle size of less than 300 ?m, wherein the metal or metalloid is selected from the group consisting of Mg, and Al, and wherein said at least one phosphate component is present in an amount ranging from 20 to 45% by weight based on 100% by weight of the formulation.

Abstract: Intumescent coating composition comprising a polyisocyanate, a polyfunctional isocyanate-reactive compound and an intumescent ingredient, wherein the intumescent ingredient contains at least one or more compounds containing phosphorus, nitrogen and boron atoms and the weight ratio phosphorus to nitrogen in said intumescent ingredient is between 0.5/1 to 1.5/1 and the amount of boron is from 1 to 5 wt % based on the coating composition.

Abstract: A method of preparing a transparent polymer material includes mixing mineral nanoparticles selected from nanoparticles of alkaline-earth metal carbonates, alkaline-earth metal sulfates, metallic oxides, oxides of metalloids, and siloxanes, and a composition A including at least one thermoplastic polymer in the molten state selected from polycarbonate (PC), polystyrene (PS) and polymethyl methacrylate (PMMA) in order to obtain a master-batch, the mixture of step i) including at least 25% and at most 75% by weight of the mineral nanoparticles. The master-batch obtained in step i) is mixed with a composition B of a thermoplastic polycarbonate matrix (PCm) in the molten state, to obtain a transparent polymer material including at most 10% by weight of the mineral nanoparticles, preferably at most 5% by weight of the mineral nanoparticles.

Abstract: A process for protecting a metal, wood or plastics substrate exposed to fire risk from hydrocarbons, comprising coating the substrate with an intumescent composition comprising a polydimethylsiloxane (A) of degree of polymerisation at least 300 siloxane units, said polydimethylsiloxane containing reactive hydroxyl or hydrolysable groups bonded to silicon, and a crosslinking agent (B) containing hydrolysable groups reactive with the reactive groups of (A) in the presence of moisture, expandable graphite and a titanate catalyst for the reaction between the reactive hydroxyl or hydrolysable groups of polydimethylsiloxane (A) and the crosslinking agent (B).

Abstract: The invention relates to a formulation suitable to provide polyurethane, the formulation comprising (a) at least one polyurethane forming mixture; (b) at least one phosphate component selected from the group consisting of ammonium polyphosphate (APP) and melamine phosphates, and mixtures thereof, and; (c) at least one metal or metalloid oxide particle having a maximum particle size of less than 300 ?m, wherein the metal or metalloid is selected from the group consisting of Mg, and Al, and wherein said at least one phosphate component is present in an amount ranging from 20 to 45% by weight based on 100% by weight of the formulation.

Abstract: The invention relates to a flame-proofed polymer composition that can be obtained from one or more ?-olefin/vinyl acetate copolymers, having a vinyl acetate content of 40 to 90 wt %, relative to the total weight of the ?-olefin/vinyl acetate copolymers, and from a synergistic flame-proofing material combination, containing, as component A, a phosphinic acid salt of the formula (I), where R1, R2 are C1-C6-alkyl, preferably C1-C4-alkyl, linear or branched; M is calcium, aluminum, zinc ions; m is 2 or 3; and as component B, a metal hydroxide, preferably aluminum hydroxide (ATH); and, as component C, a melamine compound.

Abstract: Fire-retardant polyamide cast items including an intumescent coating are described. The case items can have excellent fire-retardant properties and can include at least one fire-retardant system in the polyamide matrix. The items can also have an intumescent coating on at least one surface.

Abstract: The present invention provides a method of preparing a transparent polymer material, the method comprising steps i) and ii) in any order, the steps consisting in: i) mixing: mineral nanoparticles having a form factor strictly greater than 1.0; and a polymer matrix comprising a quantity of at least 80% by weight of a polycarbonate (PC) first thermoplastic polymer and of a second transparent thermoplastic polymer other than the first thermoplastic polymer, in order to obtain a mixture; and ii) heating the polymer matrix to the molten state, on its own or in the mixture; to obtain the transparent, polymer material, the mixture of step i) comprising a quantity of mineral nanoparticles having a form factor strictly greater than 1.0 that is strictly less than 5% by weight.

Abstract: A polylactide-based polymer or copolymer (PLA) compositions with improved flame retardancy properties as obtained by conventional melt-blending of PLA polyester matrix (1) with both calcium sulfate (2) and organo-modified layered silicates (OMLS) (3). Combination of CaSO4 and OMLS exhibits synergistic effects on PLA flame retardancy by both significantly increasing the time to ignition and decreasing the heat release rate per unit area, and promoting non-dripping properties. Moreover, all other properties of PLA remain almost unchanged or are improved as regards to pristine PLA, especially thermal and mechanical properties.

Abstract: The present invention provides a method of preparing a transparent polymer material, the method comprising steps i) and ii) in any order, the steps consisting in: i) mixing: mineral nanoparticles having a form factor strictly greater than 1.0; and a polymer matrix comprising a quantity of at least 80% by weight of a polycarbonate (PC) first thermoplastic polymer and of a second transparent thermoplastic polymer other than the first thermoplastic polymer, in order to obtain a mixture; and ii) heating the polymer matrix to the molten state, on its own or in the mixture; to obtain the transparent, polymer material, the mixture of step i) comprising a quantity of mineral nanoparticles having a form factor strictly greater than 1.0 that is strictly less than 5% by weight.

Abstract: A method of preparing a transparent polymer material includes mixing mineral nanoparticles selected from nanoparticles of alkaline-earth metal carbonates, alkaline-earth metal sulfates, metallic oxides, oxides of metalloids, and siloxanes, and a composition A including at least one thermoplastic polymer in the molten state selected from polycarbonate (PC), polystyrene (PS) and polymethyl methacrylate (PMMA) in order to obtain a master-batch, the mixture of step i) including at least 25% and at most 75% by weight of the mineral nanoparticles. The master-batch obtained in step i) is mixed with a composition B of a thermoplastic polycarbonate matrix (PCm) in the molten state, to obtain a transparent polymer material including at most 10% by weight of the mineral nanoparticles, preferably at most 5% by weight of the mineral nanoparticles.

Abstract: A polylactide-based polymer or copolymer (PLA) compositions with improved flame retardancy properties as obtained by conventional melt-blending of PLA polyester matrix (1) with both calcium sulfate (2) and organo-modified layered silicates (OMLS) (3). Combination of CaSO4 and OMLS exhibits synergistic effects on PLA flame retardancy by both significantly increasing the time to ignition and decreasing the heat release rate per unit area, and promoting non-dripping properties. Moreover, all other properties of PLA remain almost unchanged or are improved as regards to pristine PLA, especially thermal and mechanical properties.

Abstract: The present invention relates to aminoplast-membrane single-core or multi-core microcapsules whose core is comprised of at least two organic and/or inorganic compounds. The invention also relates to methods of preparing said microcapsules.

Abstract: The present invention is related to a multifilament continous textile yarn made by melt spinning of a nanocomposite comprising as components at least one polymer and carbon nanotubes, and to its uses, in particular in the textile industry.