MUMBAI, India, Aug. 22 -- Intellectual Property India has published a patent application (202517074231 A) filed by Chemetall Gmbh, Frankfurt, Germany, on Aug. 4, for 'composition for phosphatizing of ferrous surfaces and method making use thereof.'
Inventor(s) include Schneider, Ralf.
The application for the patent was published on Aug. 22, under issue no. 34/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to an acidic aqueous composition, which is free or essentially free of both fluoride anions and nickel cations, and which comprises at least constituents a1) to a5), which are different from one of another, namely phosphate anions as a1), nitrate anions as a2), zinc cations as a3), copper cations as a4), and magnesium cations as a5), a concentrate to produce said composition by dilution with water, a use of the composition for at least partial phosphatizing ferrous surfaces of substrates, a method of phosphatizing at least one ferrous surface of at least one substrate, the method comprising at least step 1), namely contacting the at least one ferrous surface at least in portion with the inventive aqueous acidic composition for phosphatizing the at least one surface, a substrate having at least one phosphatized surface and being obtainable by said method of phosphatizing, and a method of cold forming said substrate having at least one ferrous surface, the method comprises a step of subjecting said substrate having at least one phosphatized surface to a cold forming process."
The patent application was internationally filed on Jan. 10, 2024, under International application No.PCT/EP2024/050460.
Disclaimer: Curated by HT Syndication.
