42results about How to "Sufficient flame retardancy" patented technology

To provide a thermoplastic resin composition capable of affording a molded article which has excellent flame retardancy and compressive strength, which has good dimensional accuracy and which has good appearance. A thermoplastic resin composition including (A) 0.5 to 99.9 mass % of an aromatic polycarbonate-polyorganosiloxane copolymer terminated with an aromatic compound, (B) 0 to 99.5 mass % of an aromatic polycarbonate terminated with an aromatic compound, (C) 0.1 to 5 mass % of fine silica, and (D) 0 to 2 mass % of a polytetrafluoroethylene resin, and a molded article thereof, which are compounded together.

A flame-retardant resin composition which is inexpensive and is excellent in cold resistance, wear resistance and hot water resistance; and an insulating electric wire and a wire harness both utilizing the composition. Specifically disclosed is a flame-retardant resin composition which comprises a propylene polymer containing an ethylene unit in an amount of 1 to 15 wt% and magnesium hydroxide produced by using a natural mineral as a raw material. The composition preferably contains magnesium hydroxide in an amount of 50 to 200 parts by weight relative to 100 parts by weight of the polymer component in the composition. Further, the composition preferably contains a styrene-based thermoplastic elastomer. The propylene polymer preferably has a Charpy impact value of 3 to 8 KJ / m at -20 DEG C. An insulating electric wire can be produced by coating the outer region of a conductive material with the flame-retardant resin composition. A wire harness can be produced by using the insulating electric wire.

The invention relates to elongated articles and polymer compositions used for preparing the elongated articles. The elongated articles comprise an inner structure / one or more elements including a static / moving current medium or communication medium; and a halogen-free polymer composition surrounding the element(s). The polymer composition includes a linear very low density polyethylene (VLDPE) composition and one or more polyolefin-elastomers. In addition, the polymer composition includes a flame retardant filler.

A non-halogenous insulated wire [possessing sufficient flame retardancy and excellent heat resistance, wear resistance and flexibility, ]and a wiring harness including the wire. The wire includes a conductor, an inside coat of one or more layers and an outermost coat, wherein the outermost coat is in the range of 10 to 100 μm in thickness and is made from a resin composition including an olefin resin with a melting point of 180 ° C. or more and / or an olefin resin having a —Si(XI) (X 2) (X 3) group, by 20 wt% or more, and at least one of the layers of the inside coat is made from a resin composition including (A) an olefin resin with a melting point of 180 ° C. or more by 50-5 to part weight, (B) an olefin resin by 50 to 95 part weight, and (C) a metallic hydrate by 30 to 250 part weight.

A nonaqueous secondary battery comprising: a positive electrode; a negative electrode; and a nonaqueous electrolyte solution, wherein the nonaqueous electrolyte solution contains at least a cyclic nitrogen-containing compound represented by the general formula (1):wherein X represents an optionally branched divalent group derived from a chain saturated hydrocarbon and having 1 to 5 carbon atoms, ═C═CH2, ═C═O, ═C═S═O, ═O or ═S; and A1 and A2 may be the same or different and each represent an optionally substituted methylene group, ═C═O or ═SO2.

A nonaqueous secondary battery, comprising: a positive electrode; a negative electrode; and a nonaqueous electrolyte solution, the nonaqueous electrolyte solution containing as a flame retardant a compound of the general formula (I):wherein R1 and R2, which are the same or different, each represents a group that is selected from a hydrogen atom, a lower alkyl, lower alkenyl, lower alkoxy, lower alkoxycarbonyl, lower alkylcarbonyl, lower cycloalkyl or aryl group, and that may have a substituent, or R1 and R2 taken together are a methylene group that may have a substituent, or R1 and R2 taken together form a ring structure containing a nitrogen atom to which R1 and R2 are attached, the ring structure being a five-membered or six-membered hydrocarbon ring that may have one or two oxo groups, or a five-membered or six-membered heterocycle that may further contain a nitrogen atom; n is 0 or 1; when n is 0, R3 is a group that is selected from a hydrogen atom, a halogen atom, a lower alkyl, lower alkenyl, lower alkoxy, lower alkoxycarbonyl, lower alkylcarbonyl, lower cycloalkyl or aryl group, and that may have a substituent; and when n is 1, R3 and R4 are as defined for R1 and R2.

The invention relates to an epoxy resin system for producing telegraph poles and a preparation method of the epoxy resin system. The epoxy resin system comprises a component A and a component B. The component A comprises 25-50% of bisphenol-A epoxy resin, 3-25% of hydantoin epoxy resin, 20-40% of flame-retardant additives, 10-25% of slow-release agents and 1-3% of functional assistants. The component B comprises 90-97% of curing agents, 1-5% of accelerants and 1-5% of assistants. The epoxy resin system has high heat insulation performance and excellent mechanical property, especially excellent bending performance, has enough flame retardance, and has high wettability to facilitate filament winding; gel reaction can be achieved quickly at the high temperature, and accordingly, production efficiency is improved; the epoxy resin system does not release harmful gases in the production process, thereby being beneficial to environment protection.