MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202641067001 A) filed by Tvs Srichakra Limited on May 28, 2026, for A Puncture-Safe Off-Highway Tyre (oht) With Sealant Layer And Method Of Manufacturing The Same.
Inventors include K Ghouse Basha; and Nerinjampilly Illam Jayaraj Chandrasekharan.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The present invention relates to a puncture-safe off-highway tyre (OHT) incorporating a sealant-liner sandwich layer designed to seal puncture sites and prevent air loss. The puncture-safe off-highway tyre comprises a base inner liner layer (1) over the drum; a sealant sandwich layer (3); a second liner layer (2) positioned over the sealant sandwich layer which is pre vulcanized; one or more carcass plies (4) applied over the second liner; and a tread package (5) applied over the plies. A sealant compound is extruded and laminated onto a inner-liner sheet to form a composite layer, which is applied centrally over the base inner liner during tyre building. A second liner is applied over the sealant layer to prevent gel migration, followed by ply construction and tread application. The cured tyre has improved adhesion, no sealant leakage, and enhanced puncture-sealing performance.
Disclaimer: Curated by HT Syndication.
