Bridgestone has patented a rubber composition for tires containing whey protein, reinforcing carbon black filler, and rubber. The composition excludes titanium dioxide, with specific requirements for whey protein characteristics. This innovation aims to enhance tire performance and durability. GlobalData’s report on Bridgestone 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 Bridgestone, Anti-skid tyre treads was a key innovation area identified from patents. Bridgestone's grant share as of May 2024 was 44%. Grant share is based on the ratio of number of grants to total number of patents.
A recently granted patent (Publication Number: US11999830B2) discloses a novel tire rubber composition that includes at least one rubber, a reinforcing carbon black filler, and a whey protein powder component. The composition excludes titanium dioxide or titanium oxide filler and is designed to enhance the performance of tires. The whey protein component must meet specific criteria related to protein chain molecular weight, protein composition, and degree of hydrolysis. The rubber can be selected from a wide range of options, including synthetic polyisoprene rubber, natural rubber, and various other types commonly used in tire manufacturing.
Furthermore, the patent includes various claims related to the tire rubber composition, such as the inclusion of a cure package, reinforcing silica filler, cellulose ester, and starch. The composition aims to improve the overall properties of tires, including reducing the rheometric torque measured at 160 °C. The presence of whey protein in the composition is intended to provide specific benefits, such as reducing ?M by at least 10% compared to compositions lacking whey protein. The amount of whey protein powder component required in the composition is specified, along with the types of rubber that can be used in conjunction with the whey protein. Overall, the patent outlines a unique tire rubber composition that leverages whey protein to enhance tire performance and properties.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
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.
