MUMBAI, India, Jan. 23 -- Intellectual Property India has published a patent application (202511124578 A) filed by Mohd Dilawar Bhat; Sahreen Hussain; Mohamad Khubaib Bhat; Fakhr Un Nisa; Syed Ezan Nawaz; Zaheeb Mohammad Bhat; Shujaat Hussain Buch; and Jawaaz Ahmad, Srinagar, Jammu & Kashmir, on Dec. 10, 2025, for 'intumescent nano-coating for structural steel with adaptive thermal expansion control.'
Inventor(s) include Mohd Dilawar Bhat; Sahreen Hussain; Mohamad Khubaib Bhat; Fakhr Un Nisa; Syed Ezan Nawaz; Zaheeb Mohammad Bhat; and Shujaat Hussain Buch.
The application for the patent was published on Jan. 23, under issue no. 04/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to an intumescent nano-coating composition and system for enhancing the fire resistance and thermo-mechanical stability of structural steel. The coating comprises a polymeric binder combined with ammonium polyphosphate, carbon-forming components, blowing agents, and nano-ceramic fillers that provide reinforcement and controlled thermal expansion. Upon exposure to elevated temperatures, the coating undergoes an intumescence reaction, forming a thermally insulating and mechanically stable char that reduces heat transfer to the underlying steel substrate. The nano-fillers regulate micro-crack propagation and improve char integrity, while the thermally adaptive binder accommodates differential expansion to minimize delamination. The invention further provides a multilayer coating structure including a primer, nano-intumescent layer, and optional topcoat, along with a controlled manufacturing and application process. Fire-testing demonstrates improved temperature-rise profiles and extended fire-endurance performance relative to conventional coatings. The system is suitable for protecting steel structures in building, industrial, and infrastructure applications."
Disclaimer: Curated by HT Syndication.
