MUMBAI, India, Aug. 8 -- Intellectual Property India has published a patent application (202517061213 A) filed by Kemira Oyj, Helsinki, on June 26, for 'water soluble amphoteric emulsion terpolymers, methods of making, and methods of use as retention and dewatering aids.'
Inventor(s) include Hietaniemi, Matti; Luo, Yuping; Riser, Jennifer; Robinson, Ronald; Jackson, Logan; and Chen, Junhua.
The application for the patent was published on Aug. 8, under issue no. 32/2025.
According to the abstract released by the Intellectual Property India: "The present invention provides novel amphoteric emulsion polymers, aqueous compositions containing these amphoteric emulsion polymers, methods for making, and applications thereof for improving retention and vacuum and press dewatering in the manufacturing of paper or board. In particular, the present invention relates to the use amphoteric emulsion polymers, with and without silica, in papermaking processes and other processes which may involve the use of hard water during polymer makedown and/or the treatment of compositions comprising recycled and unbleached high-yield fibers and/or the treatment of compositions comprising colloidal materials and hydrophobic agglomerates and particles. More particularly, the present disclosure relates to the use of these novel amphoteric emulsion polymers as drainage aids, broke fixatives, retention/drainage cationic boosters for colloidal silica retention and drainage programs, and flocculants in water quantity and quality management (WQQM) applications."
The patent application was internationally filed on Dec. 28, 2023, under International application No.PCT/US2023/086225.
Disclaimer: Curated by HT Syndication.
