THERMOPLASTIC POLYESTER RESIN COMPOSITION AND MOLDED ARTICLE

    公开(公告)号:PH12021550508A1

    公开(公告)日:2021-10-04

    申请号:PH12021550508

    申请日:2021-03-09

    Abstract: A thermoplastic polyester resin composition obtained by blending, with respect to (A) 100 parts by weight of a non-liquid-crystalline thermoplastic polyester resin: (B) 45-150 parts by weight of a thermoplastic resin that is different than the non-liquid-crystalline thermoplastic polyester resin and has a dielectric loss tangent of 0.005 or less at a frequency of 5.8 GHz as measured by the cavity resonance perturbation method; (C) 2-20 parts by weight of a compatibilizing agent having at least one reactive functional group selected from epoxy groups, acid anhydride groups, oxazoline groups, isocyanate groups, and carbodiimide groups; and (D) 0.2-5 parts by weight of at least one compound selected from tertiary amines, amidine compounds, organic phosphines and salts thereof, imidazoles, and boron compounds, wherein the thermoplastic polyester resin composition contains a total of 50-150 parts by weight of the (B) thermoplastic resin and the (C) compatibilizing agent per 100 parts by weight of the (A) non-liquid-crystalline thermoplastic polyester resin, and the weight ratio (B)/(C) of the (B) thermoplastic resin and the (C) compatibilizing agent is 8-50. A molded article that excels in low dielectric properties, mechanical properties, and metal bondability can be obtained.

    POLYAMIDE RESIN COMPOSITION FOR USE IN COMPONENTS FOR ENGINE COOLING WATER SYSTEM AND COMPONENT THEREFROM

    公开(公告)号:JP2002114905A

    公开(公告)日:2002-04-16

    申请号:JP2000306901

    申请日:2000-10-06

    Abstract: PROBLEM TO BE SOLVED: To provide a polyamide resin composition having excellent mechanical properties, heat resistance, moldability, dimension stability and chemical resistance that is used for the components in contact with cooling water in an engine room. SOLUTION: This polyamide resin composition comprises 100 pts.wt. of a polyamide resin comprising 5-40 wt.% of a polyamide resin composed of (A) (a) 80-40 wt.% of a hexamethylene terephthalamide unit and (b) 20-60 wt.% of at least one structural unit selected from the group consisting of a hexamethylene adipamide unit, a hexamethylene isophthalamide unit and a caproamide unit and (B) 95-60 wt.% of polyhexamethylene adipamide and/or polycaproamide, and (C) 20-150 pts.wt. of an inorganic filler. The composition is used for the components for an engine cooling water system.

    RESIN COMPOSITION FOR WELDING AND MOLDED PRODUCT THEREFROM

    公开(公告)号:JP2000290476A

    公开(公告)日:2000-10-17

    申请号:JP9952299

    申请日:1999-04-07

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyester resin composition excellent in moldability, heat resistance, toughness, chemical resistance, abrasion resistance, surface smoothness of a molded product and the like in balance, and also suitable for welding. SOLUTION: This composition contains 0.02-50 pts.wt. at least one kind of compound selected from a hydrocarbon-based compound, an alkylene-bis-fatty acid amide-based compound, a fatty acid ester-based compound, a fatty acid and a metal salt thereof, a glycol-based compound, a polyester elastomer-based compound, a polyamide elastomer-based compound, a polyolefin-based compound and an epoxy-based compound based on 100 pts.wt. thermoplastic polyester.

    SYNTHETIC RESIN-MADE HOLLOW MOLDED PRODUCT AND ITS MANUFACTURE

    公开(公告)号:JP2000280353A

    公开(公告)日:2000-10-10

    申请号:JP9038099

    申请日:1999-03-31

    Abstract: PROBLEM TO BE SOLVED: To manufacture efficiently a synthetic resin-made hollow molded product of an excellent quality while the hollow molded product having a high fracture-resistance strength against an internal pressure load can be manufactured by a two-stage injection molding method even through there is a joining line disposed inside the hollow molded product. SOLUTION: This hollow molded product is provided wherein a plurality of synthetic resin-made divided pieces formed by injection molding are joined mutually by their joining parts. In this case, a passage part 3 (3a, 3b) formed by synthetic resin allowed to flow in for mutual fusion welding of the joining parts is disposed between the mutual joining parts, and the passage part is elongated in a longitudinal direction of the joining part, and has a branched passage part 3 branched in a direction crossing the longitudinal direction of the joining part.

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