A xylylenediamine-based polyamide resin/fiber composite material and molding are provided that do not exhibit a decline in properties under high temperatures and high humidities, and that exhibit a high elastic modulus and present little warping, and exhibit better recycle characteristics, a better moldability, and a better productivity than for thermosetting resins. The polyamide resin-type composite material comprises a fibrous material (B) impregnated with a polyamide resin (A) wherein at least 50 mole % of diamine structural units derived from xylylenediamine, and having a number-average molecular weight (Mn) of 6,000 to 30,000, and containing a component of a molecular weight of not more than 1,000 at 0.5 to 5 mass %.

A multilayer sheet including: a base layer including a polycarbonatesiloxane-arylate; and a cap layer disposed on a side of the base layer, wherein the cap layer includes poly(ethylene terephthalate), poly(vinyl fluoride), poly(vinylidene fluoride), a silicone hardcoat, or a combination comprising at least one of the foregoing.

A unit cell injection mold for fabricating a unit cell of a fuel cell, in which an integrated frame of the unit cell formed by injecting a polymer resin onto an insert, in which a membrane electrode assembly and a gas diffusion layer are integrated, is formed, the unit cell injection mold includes an upper mold, a lower mold engaged with the upper mold to define an inner space between the lower mold and the upper mold, the inner space including an injection area into which the insert is accommodated and an insert area into which the polymer resin is injected to form the frame, and elastic protrusions formed from an elastic material, the elastic protrusions being disposed on the upper mold and the lower mold to face each other, wherein the elastic protrusions clamp the insert to divide the inner space into the insert area and the injection area to prevent the polymer resin from entering the insert area.

A sheet material (30) is constituted by an FBL to which one surface (36a) of a fire-retardant urethane material (36) is melted and fused and an outer cover (34) to which the other surface (36b) of the fire-retardant urethane material (36) is melted and fused.

The present invention provides a flame retardant composition including a flame retardant that is extracted from a plant and can exhibit high flame retardancy. The flame retardant composition includes a flame retardant compound represented by Formula (1) and polybutylene terephthalate. The content of the flame retardant compound is 12% by weight or more and 15% by weight or less based on the total weight of the flame retardant compound and the polybutylene terephthalate.

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In Formula (1), R.sub.1 to R.sub.3 represent substituents.

The present invention relates to a lightweight sound-absorbing and fire-resistant insulation panel including: a binder; expanded graphite; and swelling clays, and the swelling clays are formed of honeycomb-shaped layered clays containing water molecules in interlayers and have particle sizes in the range of 50 to 200 m. Further, the expanded graphite is present in an amount of from 10 to 100 parts by weight per 100 parts by weight of the swelling clays. According to the present invention, the insulation panel is made of the expanded graphite and the honeycomb-shaped swelling clays, thus providing excellent lightweightness, sound absorption, insulation, fire resistance and flame retardancy, and further, the insulation panel is manufactured without having any sintering, thus providing simple manufacturing processes and lowering production costs.

A masterbatch, which includes a polyester resin (A) containing a structural unit derived from terephthalic acid (A-1) and a structural unit derived from an aliphatic diol (A-2); and a polyester resin (B) containing a structural unit derived from 2,5-furandicarboxylic acid (B-1) and a structural unit derived from 1,2-ethanediol (B-2). A proportion of the polyester resin (B) relative to a total mass of the polyester resin (A) and the polyester resin (B) is 45 mass % to 90 wt %. An intrinsic viscosity of the masterbatch is 0.50 dl/g to 1.20 dl/g.

Powder for the production of mouldings in a layer-by-layer process in which areas of a powdered layer are selectively melted, sintered, fused, or solidified, wherein the powder consists of the following components: a) 60-99% by weight of a thermoplastic polyamide with a melting temperature smaller than 175 C.; b) 1-40% by weight of a mineral inorganic flame retardant; c) 0-25% by weight of additives;
wherein the components a)-c) add up to 100% by weight of the total material of the powder.

Polymerizable liquids for 3D printing applications are described herein which, in some embodiments, impart flame resistant and/or flame retardant properties to articles printed from the liquids. The polymerizable liquids may also impart desirable mechanical properties to the articles. In some embodiments, a polymerizable liquid comprises a curable isocyanurate component in an amount of at least 5 wt. %, based on total weight of the polymerizable liquid, and a brominated acrylate ester component. Additionally, methods of printing three-dimensional articles using said polymerizable liquids are described herein.

A flame retardant composition contains the flame retardant described in Claim 1, aromatic polyester, a styrene polymer, rubber having a siloxane bond, and a fluorine compound.