Kia has been granted a patent for a thermoplastic resin composition with high rigidity and low thermal expansion. The composition includes polypropylene composite resin, elastomer, and inorganic filler. The patented product has a flexural modulus of 2,500 MPa or more and a coefficient of linear thermal expansion of 60 µm/m·° C. or less. GlobalData’s report on Kia gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Kia, Battery management systems was a key innovation area identified from patents. Kia's grant share as of January 2024 was 41%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11884802B2) discloses a thermoplastic resin composition designed for high-performance applications. The composition includes a polypropylene composite resin, an elastomer comprising ethylene-a-olefin, and an inorganic filler. The polypropylene elastomer within the composition has specific melt index parameters, contributing to a flexural modulus of 2,500 MPa or more and a coefficient of linear thermal expansion of 60 µm/m·° C. or less. The composition also features a specific mass ratio of crystalline polypropylene, ethylene-propylene copolymer, and polypropylene elastomer, along with the inclusion of specific types of elastomers and inorganic fillers.
Moreover, the thermoplastic resin composition can further include various additives such as antioxidants, ultraviolet absorbers, and nucleating agents. The composition's melt index is specified to be 35 g/10 min or more, ensuring its suitability for molding processes. The patent also extends to molded articles made from this composition, highlighting their impressive tensile strength of 17 MPa or more and a heat deflection temperature of 120° C. or higher. These molded articles find application in automobile exterior materials like side sill moldings, door moldings, and roof racks, emphasizing the versatility and robustness of the patented thermoplastic resin composition.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
