Abstract: A laser-weldable flame-retardant resin composition (for a member located in a transmitting side) comprises (A) a polyester-series resin and (B) at least one phosphinic acid compound selected from the group consisting of a salt of a phosphinic acid, a salt of a diphosphinic acid, and a polymer thereof (preferably, a metal salt). The resin composition may have a laser light transmittance of not less than 15% for a molded product comprising the resin composition and having a thickness of 2 mm. The resin composition may further contain a fluorine-containing resin, a nitrogen-containing flame retardant (e.g., a salt of a triazine compound with cyanuric acid and/or isocyanuric acid), and/or a filler (e.g., a glass fiber), and others. Such a resin composition realizes both of laser-weldability (laser transmissivity) and flame retardancy at high levels.

Abstract: The invention provides a resin composition which gained flame-retardancy by a non-halogen based flame-retardant, having excellent small-warping performance without deteriorating excellent moldability and various characteristics (mechanical characteristics, electrical characteristics, and long-term environmental characteristics) which are inherent advantageous properties of polybutylene terephthalate resin. Specifically, to (A) 100 parts by weight of polybutylene terephthalate-based resin, there are mixed: (B) 10 to 100 parts by weight of a polymer of one or more types selected from the group consisting of modified polyester and styrene-based resin; (C) 10 to 100 parts by weight of specific phosphinic acid salt and/or diphosphinic acid salt and/or a polymer thereof; and (D) 20 to 200 parts by weight of glass fiber having an average cross-sectional area ranging from 100 to 300 square micrometers.

Abstract: To provide a flame-retardant thermoplastic polyester resin composition having excellent flame-retarding properties even without any halogen flame retardant, and also good mechanical properties and moldability and an excellent heat residence stability. The composition comprises (A) 100 parts by weight of a thermoplastic polyester resin, (B) 5 to 40 parts by weight of a specific phosphinic acid salt and/or a specific diphosphinic acid salt and/or a polymer thereof, and (C) 1 to 35 parts by weight of a nitrogen-containing organic substance.

Abstract: To provide a flame-retardant polyester resin composition excellent in moldability and capable of keeping its excellent contact properties stable for a long period of time when it is molded into an electric component such as a relay or switch.100 parts by weight of a polyester resin (a) comprising as the main constituents an aromatic or aliphatic dicarboxylic acid and an aliphatic diol, each end of which is substituted with a monofunctional compound having a carboxyl or hydroxyl group, the amount of the hydroxyl end group being 40 meq/kg or below, is blended with 1 to 50 parts by weight of a specified halogenated phenoxy compound (B), 0.1 to 30 parts by weight of an antimony compound (C), and 0 to 150 parts by weight of an inorganic filler (D).

Abstract: A flame-retardant polybutylene terephthalate resin composition, suitable for use as a support structure for an electrical contact includes (A) 100 parts by weight of a polybutylene terephthalate base resin having an intrinsic viscosity of 0.75 to 1.5 dl/g; (B) between 1 to 50 parts by weight of a halogenated phenoxy compound; (C) between 0.1 to 30 parts by weight of an antimony compound containing antimony pentaoxide and an alkali metal oxide; (D) between 0.01 to 10 parts by weight of a fatty acid ester of a polyhydric alcohol, and optionally (E) an inorganic filler.

Abstract: A hot-melt adhesive comprising a special polyamideimide or polyamide is excellent in heat resistance and adhesive strength and usable for providing substrates for printed circuit boards.

Abstract: A solvent-soluble polyimide obtained from an exo-form dicarboxylic acid anhydride with an aromatic diamine, e.g. 2,2,-bis[4-(4-aminophenoxy)phenyl]propane is improved in film-forming properties and transparency, and particularly suitable for producing an orientation controlling film in a liquid crystal display device.