MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202617077346 A) filed by Sumitomo Chemical Advanced Technologies LLC, D. B. A.; and Sumitomo Chemical Company, Limited on June 23, 2026, for Rubber Compositions Containing Phloroglucinol Acetate Or Butyrate For Use In Tire Tre Ads Of Heavy Vehicles.
Inventors include Keita, Mari Diata V; and Nobuoka, Toshihiro.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: A silane-based additive, rubber formulations including the additive and tires having tread portions made with the additive, together with methods of forming those products, are provided. Uncured rubber formulations in accordance with preferred embodiments of the invention comprise (1) a rubbery primary polymer or polymer blend, such as natural rubber and/or synthetic rubber; (2) reinforcing silica filler; (3) methylene donor compound; (4) a silane containing one or more moieties of the aforementioned network forming polymer, and (5) modified phloroglucinol. In particular networks which can be generated in-situ are preferred. The cured rubber formulation should comprise the silica, having the load-bearing-path reinforcing interpenetrating polymer network coupled thereto, within the rubber matrix, and not directly to the rubber chains via sulfidic linkages.
Disclaimer: Curated by HT Syndication.
