MUMBAI, India, Sept. 5 -- Intellectual Property India has published a patent application (202441012339 A) filed by Hindustan Petroleum Corporation Limited, Bengaluru, Karnataka, on Feb. 21, 2024, for 'development of novel and cost-effective thermal insulating coating to mitigate corrosion under insulation.'
Inventor(s) include Ajay Krishnan M; Megha Basik; Amrutha M S; and Balasubramaniam Ravi.
The application for the patent was published on Sept. 5, under issue no. 36/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a composition for mitigating corrosion under insulation, said composition comprising: (a) 20 wt.% to 60 wt.% of an epoxy resin; (b) 10 wt.% to 30 wt.% of a curing agent comprising a mixture of (b1) an aromatic compound selected from the following formula and/or I II wherein, Y is an alkyl group containing 1 to 4 carbon atoms, X is hydrogen or an alkyl group containing 1 to 4 carbon atoms, and R and R', independent of each other, are selected from alkyl group containing 1 to 4 carbon atoms, and alkylthio group containing 1 to 4 carbon atoms, and (b2) an aliphatic compound; (c) 1.0 wt.% to 15 wt.% of glass microspheres; (d) 10 wt.% to 40 wt.% of corrosion resistant fillers; (e) 0.1 wt.% to 1.0 wt.% of a fluorine-containing dispersant; and (f) 10 wt.% to 40 wt.% of a solvent, wherein the wt.% is based on the total weight of the composition. The present disclosure also relates to a process for preparing the composition for mitigating corrosion under insulation."
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