MUMBAI, India, March 7 -- Intellectual Property India has published a patent application (202437091675 A) filed by Chempolis Oy, Oulu, Finland, on Nov. 25, 2024, for 'method for preparing lignin-phenol-formaldehyde resins of controlled viscosity.'
Inventor(s) include Wikberg, Hanne; Setala, Harri; and Widsten, Petri.
The application for the patent was published on March 7, under issue no. 10/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a method for solubilising a lignin material and controlling its molecular weight, in order to prevent the potential decrease in its reactivity, and thereby controlling the viscosity of both the lignin material and the obtained condensation p...