Abstract: The present invention provides resin compositions containing thermoplastic resins. Thermoplastic resins employable for the compositions are polyolefin resins, polyester resins, polystyrene resins, polyamide resins and polyphenylene ether resins. The present invention can be particularly effected by using polyamide, particularly, specific aromatic polyamides.In the present invention, the resin compositions can be improved in various chemical and physical properties such as flame-retardance, moldability, color tone, heat stability, mechanical strength by the use of other resin component and stabilizers such as halogenated organic compounds, modified polyolefins, antimony compounds, phosphorus-containing compounds, amine- or phosphorus-type stabilizers.

Abstract: A polyamide resin composition which comprises: (A) an aromatic polyamide resin comprising preferably a terephthalic acid component and a diamine component comprising at least one of an aliphatic diamine component and an alicyclic diamine component; (B) a fibrous reinforcement; and (C) at least one additive selected from the group consisting of a salt of the group I, II and III metals of the periodic table of a higher fatty acid salt and an acid ester, a partially saponified ester and a metal salt of an aliphatic carboxylic acid of 26-32 carbons.The resin composition is of high fluidity and mold-releasing properties as well as of high heat resistance and rigidity, so that the composition can be molded with decomposition of the resins.

Abstract: A composition comprising (I) a thermally stable polyamide such as an aromatic polyamide, (II) a halogenated polystyrene or a halogenated polyphenylene oxide, and (III) sodium antimonate has excellent fire retardancy and excellent thermal stability during molding. The thermal stability of the composition is further enhanced by including (IV) a hydrotalcite-type complex hydroxide or (V) magnesium oxide and/or zinc oxide.