GENEVA, April 19 -- KEMIRA OYJ (Energiakatu 400180 Helsinki) filed a patent application (PCT/FI2024/050537) for "DRAINAGE AID FOR USE IN BLEACHING PROCESS OF CELLULOSIC FIBRES" on Oct 10, 2024. With publication no. WO/2025/078727, the details related to the patent application was published on Apr 17, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
Inventor(s): OKKONEN, Markus (c/o Kemira OyjKiviharjunlenkki 1C90220 Oulu)
Abstract:
A method for improving drainage in an acidic stage of the bleaching process of cellulosic fibres, followed by at least one washer stage, in which method a polymer comprising...