MUMBAI, India, June 22 -- Intellectual Property India has published a patent application (202641070240 A) filed by D Somasundaran; Dr. S. Guhanathan; Dr. S V Gomathi; Pawar Praveen; and B. S. Pavan on June 04, 2026, for “a Novel Thermally Stable 3,4-Dihydropyrimidinone-Based Organophosphorus Vinyl Polymer System For Fire-Resistant Structural Coatings And Infrastructure Protection”.
Inventors include D Somasundaran; Dr. S. Guhanathan; Dr. S V Gomathi; Pawar Praveen; B. S. Pavan; and Shaik Sandani Basha.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: The present invention relates to a novel thermally stable and flame-retardant polymer system developed through the functional integration of **3,4- Dihydropyrimidinone derivatives with **Organophosphorus Compounds in a vinyl polymer matrix. The invention is specifically designed for application as a high- performance protective coating for structural materials such as concrete and steel used in infrastructure systems. The developed polymer composition is synthesized by incorporating organophosphorus-functionalized 3,4-dihydropyrimidinone intermediates into a polymerizable vinyl framework, followed by controlled polymerization to form a crosslinked network structure. This functional modification enhances intermolecular bonding, thermal degradation resistance, and mechanical integrity of the polymer. The presence of phosphorus-containing groups promotes the formation of a stable intumescent char layer during fire exposure, thereby reducing heat transfer, suppressing flame propagation, and minimizing smoke generation. The coating system exhibits excellent adhesion to structural substrates, improved durability under environmental conditions, and resistance to thermal and chemical degradation. The material demonstrates self-extinguishing behavior and maintains structural integrity under elevated temperatures, making it suitable for fire protection in buildings, bridges, tunnels, and industrial installations. The invention provides a scalable and environmentally safer alternative to conventional fire-retardant coatings by reducing toxic emissions and enhancing overall performance. The proposed polymer system addresses critical challenges in fire safety and infrastructure protection, thereby contributing to the development of advanced, sustainable, and resilient construction materials.
Disclaimer: Curated by HT Syndication.
