This disclosure describes compositions, kits, methods, systems, and three-dimensional parts. According to an example, described herein is a threedimensional printing composition comprising: a polymeric powder build material comprising a thermoplastic polymer powder composition, wherein the thermoplastic polymer powder composition comprises: (a) at least 50 wt % of a C3 polyolefin, or a mixture of two or more polyolefins including at least 60 wt % of a C3 polyolefin based on the total weight of the mixture of the two or more polyolefins, (b) 0.1 to 1 wt % antioxidants, (c) 0.1 to 5 wt % flow aids, (d) 0-10 wt % of a surface modifying agent, (e) 0.05-wt %-10 wt % antistatic agents, (f) 2 wt % to 40 wt % filler, wherein the total of (a) to (f) is 100 wt %.

Polyamide moulding composition in particular for railway applications consisting of: (A) from 50 to 90% by weight of a polyamide matrix consisting of (A1) polyamide 12 and optionally (A2) up to 85% by weight of polyamide elastomer based on polyamide 12; (B) from 7 to 28% by weight of flame retardant consisting of (B1) at least one metal phosphinate, and also optionally (B2) up to 40% of a nitrogen-containing synergist and/or at least one nitrogen- and phosphorus-containing flame retardant; (C) from 3 to 15% by weight of plasticizer; (D) from 0 to 15% by weight polyolefin; (E) from 0 to 10% by weight of additives and/or particulate fillers, with exclusion of fibrous reinforcing materials;
where the entirety of (C) and (D) is from 3 to 20% by weight, based on the entire moulding composition, and where the entirety of (A) to (E) provides 100% by weight.

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. ##STR00001##
In Formula (1), R.sub.1 to R.sub.3 represent substituents.

A resin composition, containing an ethylene-vinyl acetate copolymer (A); and 15 to 30 mass parts of a bromine-based flame retardant (B), 5 to 15 mass parts of antimony trioxide (C), 6 to 12 mass parts of a benzimidazole-based aging retardant (D), 2 to 4 mass parts of a phenol-based aging retardant (E), 2 to 4 mass parts of a thioether-based aging retardant (F), 0.5 to 2 mass parts of a copper inhibitor (G), and 3 to 6 mass parts of a crosslinking aid (H), with respect to 90 to 100 mass parts of the ethylene-vinyl acetate copolymer (A); a vehicle wire harness; and, a method of producing a vehicle wire harness.

Method for producing a fiber tape including spreading a strand of fibers into a spreaded fiber layer, immersing the spreaded fiber layer in a solution, and forming a fiber tape from the spreaded fiber layer by applying heat and/or pressure to the spreaded fiber layer.

Provided are resin foam particles that enable shaping of a sound absorbing member having excellent sound absorption performance through a resin foam shaped product. Also provided is a laminate that includes a resin foam shaped product as a base material and with which high sound absorption performance can be obtained even when the laminate is a thin material. The resin foam particles contain a resin and have a recessed external part. A ratio .sub.0/.sub.1 of density of the resin .sub.0 and true density .sub.1 of the resin foam particles is 2 to 20, and a ratio .sub.1/.sub.2 of true density .sub.1 of the resin foam particles and bulk density .sub.2 of the resin foam particles is 1.5 to 4.0.

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising (i) providing an A-side reactant stream that includes an isocyanate containing compound; (ii) providing a B-side reactant stream that includes a polyol and a physical blowing agent, where the physical blowing agent includes pentane, butane, and optionally a blowing agent additive that has a Hansen Solubility Parameter (.sub.t) that is greater than 17 MPa.sup.0.5; and (iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

An environmental-friendly fuel is provided which comprises 65 wt % to 95 wt % of a plurality of fine granules of recycled material mixed with 5 wt % to 35 wt % of a halogen-free flame retardant. The plurality of fine granules of recycled material are pulverized from waste polyurethane foamed material recovered from discarded objects.

A device for storage, generation, transmission, distribution and/or other use of electrical energy, comprising a flame retardant molded article, comprising a polymer matrix containing a crosslinked aliphatic polyketone (PK) in combination with at least one flame retardant and to a method for improving the flame retardant properties of molded articles for electrical devices. In addition electric vehicles, battery energy storage systems, power tools and devices for power generation and to parts therof, comprising a flame retardant molded article, comprising a polymer matrix containing a crosslinked aliphatic polyketone (PK) in combination with at least one flame retardant.

An optical fiber cable includes: a core including optical fibers; a reinforcing wrap that surrounds the core; and a sheath that accommodates the core and the reinforcing wrap. The reinforcing wrap includes an overlapping portion. A first end portion of the reinforcing wrap overlaps a second end portion of the reinforcing wrap at a portion of the reinforcing wrap in a circumferential direction of the optical fiber cable in a cross-sectional view.