Polyamide resin composition
    4.
    发明授权

    公开(公告)号:US12098278B2

    公开(公告)日:2024-09-24

    申请号:US17440345

    申请日:2020-03-12

    IPC分类号: C08L77/02 C08K3/34 C08K5/098

    摘要: The present invention is a polyamide resin composition which contains 50 to 90% by mass of a crystalline polyamide resin (A) and 9 to 49% by mass of a talc (B). The average particle size of secondary particles of the talc (B) in the polyamide resin composition is 30 μm or less. The polyamide resin composition has an exothermic peak present on a high temperature side of a maximum exothermic peak of a crystallization temperature during cooling in a cooling process of measurement by means of a differential scanning calorimeter. Variations in physical characteristics such as a molding shrinkage, mechanical characteristics, and a heat distortion temperature of the polyamide resin composition are suppressed among different production machines or different production lots. Consequently, characteristics within desired ranges are stably obtained.

    RESIN MATERIAL, AQUEOUS SOLUTION, AND ADHESIVE

    公开(公告)号:US20240309248A1

    公开(公告)日:2024-09-19

    申请号:US18658494

    申请日:2024-05-08

    申请人: KURARAY CO., LTD.

    摘要: The present invention provides a resin material that comprises an ethylene-modified vinyl alcohol polymer as a main component, and that excels in hue, water solubility, and aqueous-solution viscosity stability. The present invention also provides an aqueous solution and an adhesive comprising such a resin material. The present invention relates to a resin material comprising an ethylene-modified vinyl alcohol polymer and sodium acetate, wherein:



    the ethylene-modified vinyl alcohol polymer has an ethylene unit content of 1 10 mol % or more and less than 15 mol %, a viscosity-average degree of polymerization of 200 or more and less than 3,000, and a degree of saponification of 80 mol % or more and less than 99.9 mol %, and comprises 0.0005 mol % or more and 0.10 mol % or less of a propyl group at one end of the polymer, and
    the sodium acetate content is 0.05 mass % or more and less than 2 mass %.

    Electrically Conductive Compositions Including Carbon Fiber-Filled Semi-Crystalline Polymers

    公开(公告)号:US20240279438A1

    公开(公告)日:2024-08-22

    申请号:US18570777

    申请日:2022-06-22

    IPC分类号: C08K7/06 C08K3/34 C08K5/098

    摘要: A thermoplastic composition includes: (a) a thermoplastic polymer component including a crystalline or semi-crystalline polymer: (b) carbon fiber: (c) from about 0.01 wt % to about 10 wt % of at least one nucleating agent including a non-electrically conducting filler, an organic nucleation agent, or a combination thereof; and (d) from 0 wt % to 30 wt % of an amorphous polymer. The carbon fiber has a nominal fiber diameter of from about 3 micron (μm) to about 13 μm. The composition has a surface resistivity that is at least 50% lower than that of a substantially identical reference composition that does not include the at least one nucleating agent. The combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the thermoplastic composition.