MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202541134042 A) filed by Ms. M Vijayalakshmi; Mr. A. Prashanth; Ms. N. Rajeswari; Ms. Paturu Jyothi Manasa; Dr. A. Jyotsna; Dr. V. N. S. R. Venkateswara Rao; Ms. N. Ramanamma; Dr. Sapthagiri Vienala; Mr. Pokala Sharath Power; and Ms. Katabatthini Deepika, Hyderabad, Telangana, on Dec. 31, 2025, for 'self-healing polymer formulations for advanced high-durability coatings in extreme environments.'

Inventor(s) include Ms. M Vijayalakshmi; Mr. A. Prashanth; Ms. N. Rajeswari; Ms. Paturu Jyothi Manasa; Dr. A. Jyotsna; Dr. V. N. S. R. Venkateswara Rao; Ms. N. Ramanamma; Dr. Sapthagiri Vienala; Mr. Pokala Sharath Power; and Ms. Katabatthini Deepika.

The application for the patent was published on Jan. 9, under issue no. 02/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to self-healing polymer coating systems based on dynamic covalent networks formed through reversible Diels-Alder cycloaddition reactions between furan and maleimide functional groups. These coatings are designed to autonomously or stimulus-responsively repair mechanical damage such as cracks and scratches, thereby significantly extending service life and reducing maintenance requirements. The invention discloses advanced formulation strategies for epoxy, polyurethane, acrylic, and hybrid thermoset matrices incorporating reversible crosslinks, optionally combined with irreversible bonds to enhance mechanical stability, adhesion, and durability. The coatings further integrate functional nanofillers to impart additional properties including corrosion resistance, transparency, electrical conductivity, flame retardancy, antibacterial activity, and photothermal responsiveness. Emphasis is placed on sustainable material design, solvent reduction, biobased precursors, and scalable processing techniques. The invention also addresses standardized healing assessment methodologies and alternative energy-efficient activation mechanisms, enabling practical industrial implementation of multifunctional, high-performance, self-repairable coatings for demanding environments."

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