The present invention relates to flame retardant polyamide-based compositions or moulding materials and to articles of manufacture of the electricals or electronics industries producible therefrom, in particular charging components, containing at least one polyamide, aluminium oxide, magnesium hydroxide and at least one organic epoxide.

A sound-absorbing material includes an open-cell, filled silicone foam having a density of less than 155 kg/m.sup.3 and a porosity of at least 70%, wherein the silicone foam has an average cell size of less than 2300 micrometers, determined in a direction parallel to the rise direction, and an average cell size of less than 800 micrometers, determined in a direction perpendicular to the rise direction, each determined by optical microscopy.

The present invention relates to compostable biopolymer compositions having desirable mechanical properties, strength and transparency. The present invention also relates to compostable biopolymer films and biopolymer sheets having desirable thermoformability, flexibility, mechanical properties, reduced haze that have wide ranging applications as alternatives to single use plastics in the medical and surgical field. The compositions of the present invention are blow molded, injection molded, extruded or the polymer films or sheets comprising the biopolymer compositions may be thermoformed to prepare wide ranging single use appliances and devices.

A polymeric composition includes 10 wt % to 80 wt % of a silane-grafted ethylene polymer based on a total weight of the polymeric composition. The silane-grafted ethylene polymer has a silane content of 0.40 mol % to 1.50 mol % based on a total moles of the silane-grafted ethylene polymer and the ethylene polymer used to make the silane-grafted ethylene polymer has a polar comonomer content of less than 15 wt % based on a total weight of the ethylene polymer. The polymeric composition also includes 10 wt % to 80 wt % of a flame-retardant filler based on a total weight of the polymeric composition.

The invention relates to a curable fluoroelastomer composition having low swelling tendency, comprising: A) a curable fluoroelastomer; B) a curing system; and C) 0.1 wt.-% to 30 wt.-% of a nitrogen-containing polymer, selected from polyimide, polyimide, mixtures and/or copolymers thereof, each relative to the total weight of fluoroelastomer and nitrogen-containing polymer, the nitrogen-containing polymer being present in particulate form of an average particle size in the range of 0.15 to 70 m and/or in fiber form having an average fiber diameter in the range of 0.15 to 70 m.

A polymeric composition includes a first ethylene-based polymer having a density of 0.93 g/cc to 0.97 g/cc as measured according to ASTM D792, a second ethylene-based polymer having a density of 0.93 g/cc to 0.97 g/cc as measured according to ASTM D792, wherein the second ethylene-based polymer has a melt index (I2) of 3.0 g/10 minute or greater as measured according to ASTM D1238, wherein the combination of the first and second ethylene-based polymers has a Relaxation Spectrum Index value of 10 to 25, a polydispersity index of 10 or greater as measured according to Gel Permeation Chromatography, and a dynamic oscillatory shear viscosity at 100 radians per second of 500 Pa.Math.S or less as measured according to ASTM D4440-15. The polymeric composition also includes a compatibilizer and a flame retardant filler.

The present invention relates to a polyamide composition, which comprises A) 20% to 90% by weight of an aliphatic polyamide having a melting temperature of no higher than 245 C. and an intrinsic viscosity in the range of 90 ml/g to 240 ml/g as measured according to ISO 307. B) 3% to 12% by weight of red phosphorus. C) 3% to 12% by weight of magnesium hydroxide. D) 3% to 12% by weight of an impact modifier, and E) 0 to 50% by weight of a reinforcing agent, each being based on the total weight of the polyamide composition, and also to use of the polyamide composition for producing plastic articles requiring thermal aging resistance at a high temperature.

There are provided a flame retardant element for suppressing flame propagation when a fire occurs during the use of a lithium secondary battery, thereby ensuring safety of the secondary battery while in use, a method for manufacturing the flame retardant element, and a secondary battery module and a secondary battery pack comprising the flame retardant element. The proposed flame retardant element is a composite pad having a stack of at least two polymer resin single layers including fire extinguishing materials having different fire extinguishing and flame retardant mechanisms, the composite pad includes a first polymer resin single layer and a second polymer resin single layer, and the first polymer resin single layer includes the fire extinguishing material which takes effect in a lower temperature range than the second polymer resin single layer.

A black elastomer molded article according to the present technology is provided with an affixing surface to which an adherend having light transmission property is affixed in a removable manner, wherein the black elastomer molded article includes a thermoplastic elastomer, a black substance, and a softening agent and has an FP hardness of 85 or less, a reflectance (Ym value) of the affixing surface being 5.0% or less, a surface roughness (Ra) of the affixing surface being 1.0 m or less, and an adhesive force (with respect to SUS) of the affixing surface being from 1.0 N/mm to 8.0 N/mm.

An anti-bacterial and flame-retardant wall covering structure is provided. The wall covering structure includes a fiber substrate, two polyolefin substrates, and an anti-bacterial layer. The two polyolefin substrates are formed on both side surfaces of the fiber substrate to form a sandwich laminate. A polyolefin composition of each of the polyolefin substrates includes a first polyolefin resin material, a second polyolefin resin material, and a flame-retardant additive material. The first polyolefin resin material is a polyethylene resin, and the second polyolefin resin material is a polypropylene resin that includes a propylene block copolymer. Based on a total weight of the polyolefin composition being 100 parts by weight, a content of the propylene block copolymer is not less than 5 parts by weight. The anti-bacterial layer is formed on a surface of the sandwich laminate and includes a fluorine-containing polymer.