Abstract: The present invention relates to hydrogenated block copolymers of vinyl aromatic polymer blocks and conjugated diene polymer blocks having specific molecular weights, compositions, molecular structures and architectures, such that improved processability, mechanical and optical properties are attained. The hydrogenated block copolymer can be further added with different hydrogenated block copolymers to enhance the desired properties.

Abstract: The present invention relates to hydrogenated block copolymers of vinyl aromatic polymer blocks and conjugated diene polymer blocks having specific molecular weights, compositions, molecular structures and architectures, such that improved processability, mechanical and optical properties are attained. The hydrogenated block copolymer can be further added with different hydrogenated block copolymers to enhance the desired properties.

Abstract: The invention relates to a fire-resistant polyurethane material comprising a foamed polyurethane main body, a fire-resistant inorganic powder and a hollow structure. The density of the hollow structure is lower than about 0.1 g/cm3 and the material of the hollow structure is selected from the group consisting of polymer, glass and ceramic. The fire-resistant polyurethane material according to the invention has excellent fire-resistant effects. The invention also provides a fire-resistant structure.

Abstract: The invention relates to a fire-resistant polyurethane material comprising a foamed polyurethane main body, a fire-resistant inorganic powder and a hollow structure. The density of the hollow structure is lower than about 0.1 g/cm3 and the material of the hollow structure is selected from the group consisting of polymer, glass and ceramic. The fire-resistant polyurethane material according to the invention has excellent fire-resistant effects. The invention also provides a fire-resistant structure.

Abstract: A flame-retardant coating material and a flame-retardant substrate are provided. The flame-retardant coating material comprises: a polyurethane resin, an isocyanate compound has a plurality of isocyanate (—NCO) groups, and at least one metal hydroxide. The isocyanate groups of the isocyanate compound are linked to the polyurethane resin and the metal hydroxide, respectively. The flame-retardant coating material is halogen-free and can provide flame-retardant property and comply with environmental protection regulations.

Abstract: An electret diaphragm and a speaker using the same are provided. The electret diaphragm includes an electret layer, a bonding layer adhered to a surface of the electret layer, and an aluminum (Al) electrode layer adhered on the bonding layer. The electret layer at least includes ethylene group polymer. A material of the bonding layer is ethylene-ethyl-acrylate (EEA) or ethylene-vinyl acetate (EVA).

Abstract: A fire-resistant coating material comprising an organic/inorganic composite is disclosed. The organic/inorganic composite includes an organic component of polymer, monomer, oligomer, prepolymer, or copolymer having a first reactive functional group; inorganic particles; and optional additives. The inorganic particles possess a second reactive functional group, originally or after surface modification, which react with the first reactive functional group of the organic component to form chemical bonds. The organic/inorganic composite can be with admixed with a suitable continuous phase, depending on the type of the organic component, to provide a fire-resistant coating material.

Abstract: The invention discloses a fire-resistant composite comprising inorganic particles well dispersed in a polymer, oligomer or copolymer having reactive functional groups. The inorganic particles also contain reactive functional groups, originally or after surface modification, that can react with the corresponding reactive functional groups of the organic component to form organic/inorganic composite materials. When the composite material is burned or exposed to fire, the organic component forms a char layer and the inorganic particles radiate absorbed heat. The inorganic particles also strengthen the mechanical properties of the structure through the reaction between inorganic and organic materials. The invention also discloses a fire-resistant plate containing the organic/inorganic component.

Abstract: The invention provides a fire resistant material and a formulation thereof. The formulation comprises a liquid suspension of a modified inorganic particle and an organic component. The modified inorganic particle comprises an inorganic particle with hydroxyl groups and a surface modifier coupled to the inorganic particle via a urethane linkage, wherein the surface modifier has an ethylenically unsaturated end group. The organic component comprises a monomer, oligomer, prepolymer, polymer, or combinations thereof, capable of reacting with the ethylenically unsaturated end group.

Abstract: The invention provides a fire resistant material and a formulation thereof. The formulation comprises a liquid suspension of a modified inorganic particle and an organic component. The modified inorganic particle comprises an inorganic particle with hydroxyl groups and a surface modifier coupled to the inorganic particle via a urethane linkage, wherein the surface modifier has an ethylenically unsaturated end group. The organic component comprises a monomer, oligomer, prepolymer, polymer, or combinations thereof, capable of reacting with the ethylenically unsaturated end group.

Abstract: An electret diaphragm and a speaker using the same are provided. The electret diaphragm includes an electret layer, a bonding layer adhered to a surface of the electret layer, and an aluminum (Al) electrode layer adhered on the bonding layer. The electret layer at least includes ethylene group polymer. A material of the bonding layer is ethylene-ethyl-acrylate (EEA) or ethylene-vinyl acetate (EVA).

Abstract: The invention provides a fire resistant material and a formulation thereof. The formulation comprises a liquid suspension of a modified inorganic particle and an organic component. The modified inorganic particle comprises an inorganic particle with hydroxyl groups and a surface modifier coupled to the inorganic particle via a urethane linkage, wherein the surface modifier has an ethylenically unsaturated end group. The organic component comprises a monomer, oligomer, prepolymer, polymer, or combinations thereof, capable of reacting with the ethylenically unsaturated end group.

Abstract: This invention discloses a hybrid electret. The hybrid electret comprises at least a first dielectric layer and at least a second dielectric layer, and the first dielectric layer and the second layer are alternatively stacked. The first dielectric layer comprises at least a polymer and the second dielectric layer comprises at least a polymer, and the polymer of the first dielectric layer differs from the polymer of the second dielectric layer.

Abstract: A multilayer fire-resistant material is provided, which comprises two or more layers formed of homogeneous or heterogeneous materials, with at least one layer being an organic/inorganic composite. The organic/inorganic composite comprises an organic component of a polymer, oligomer, or copolymer having a first reactive functional group, and inorganic particles having a second reactive functional group. The inorganic particles are chemically bonded to the organic component via a reaction between the first and the second reactive functional groups.

Abstract: Disclosed are modified inorganic particles and methods of preparing the same. The modified inorganic particle comprises an inorganic particle with hydroxyl groups, and a surface modifier coupled to the inorganic particle via a urethane linkage, wherein the surface modifier has an ethylenically unsaturated end group. The method comprises providing an inorganic particle with hydroxyl groups; providing a surface modifier with an isocyanate group at one end and an ethylenically unsaturated group at the other end; and mixing the inorganic particle with the surface modifier for reaction such that the surface modifier is coupled to the inorganic particle.

Abstract: Disclosed are modified inorganic particles and methods of preparing the same. The modified inorganic particle comprises an inorganic particle with hydroxyl groups, and a surface modifier coupled to the inorganic particle via a urethane linkage, wherein the surface modifier has an ethylenically unsaturated end group. The method comprises providing an inorganic particle with hydroxyl groups; providing a surface modifier with an isocyanate group at one end and an ethylenically unsaturated group at the other end; and mixing the inorganic particle with the surface modifier for reaction such that the surface modifier is coupled to the inorganic particle.

Abstract: The invention provides a fire resistant material and a formulation thereof. The formulation comprises a liquid suspension of a modified inorganic particle and an organic component. The modified inorganic particle comprises an inorganic particle with hydroxyl groups and a surface modifier coupled to the inorganic particle via a urethane linkage, wherein the surface modifier has an ethylenically unsaturated end group. The organic component comprises a monomer, oligomer, prepolymer, polymer, or combinations thereof, capable of reacting with the ethylenically unsaturated end group.

Abstract: A multilayer fire-resistant material is provided, which comprises two or more layers formed of homogeneous or heterogeneous materials, with at least one layer being an organic/inorganic composite. The organic/inorganic composite comprises an organic component of a polymer, oligomer, or copolymer having a first reactive functional group, and inorganic particles having a second reactive functional group. The inorganic particles are chemically bonded to the organic component via a reaction between the first and the second reactive functional groups.

Abstract: The present invention is an ignition resistant polymeric composite comprising a) a polymeric substrate; b) a flame retardant intermixed with the polymeric substrate; and c) a partially oxidized plasma polymerized organosilicon layer adhered to the substrate. The ignition resistant composite can readily achieve a V-0 rating in a UL-94 flammability test using a substantially lower concentration of flame retardant than is commonly incorporated into substrates to achieve the same result. Consequently, the present invention addresses the need to maintain the integrity of a substrate incorporated with flame retardant to reduce the levels of environmentally suspect materials.

Abstract: Coupled polymers are prepared by a process comprising heating an admixture containing (1) at least one polyolefin comprising ethylene and optionally at least one comonomer and (2) a coupling amount at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer; particularly where the polyolefin is the product of polymerization of ethylene and optionally at least one other alpha-olefin in the presence of a single site catalyst.