MUMBAI, India, Sept. 5 -- Intellectual Property India has published a patent application (202347051331 A) filed by Henkel Ag & Co. Kgaa, Dusseldorf, Germany, on July 31, 2023, for 'improved cr (iii)-based passivation for zinc-aluminium coated steel.'

Inventor(s) include Jadhav, Aditi; Vijay, Meenu; Das, Niranjan; and Wagh, Komal.

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 application is directed to an aqueous passivation composition for the treatment of zinc or zinc alloy coatings, said composition having a pH of from 6.5 to 9 and comprising, based on the weight of the composition: from 5 to 60 wt.% of a) at least on...