This inventor holds 1 USPTO granted patent. Top assignee: Kemira Oy. Active years: 1997.
Company Filing History:
Years Active: 1997
Title: The Innovative Contributions of Tore Anders Duvnas
Introduction
Tore Anders Duvnas is a notable inventor based in Maksamaa, Finland. He has made significant contributions to the field of paper production through his innovative patent. His work focuses on improving the efficiency and quality of paper manufacturing processes.
Latest Patents
Duvnas holds a patent for a process for producing paper. This invention involves adding auxiliary agents to an aqueous fiber suspension, which may contain a filler. The auxiliary agents include a cationic long-chain polyacrylamide and an aluminum salt. The process enhances retention and dewatering during the sheet-forming stage. The fiber suspension is subjected to shearing forces before the addition of a polymeric aluminum salt or an aluminum salt. This method ensures that the pH remains within the range of 7-9, facilitating the formation of aluminum hydroxy particles with anionic surface charges in situ.
Career Highlights
Duvnas is associated with Kemira Oy, a company known for its expertise in chemical solutions for various industries, including paper production. His work at Kemira Oy has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in the field.
Collaborations
Duvnas collaborates with Lars Harald Petander, working together to enhance the processes and technologies related to paper production.
Conclusion
Tore Anders Duvnas is a significant figure in the paper production industry, with a patent that showcases his innovative approach to improving manufacturing processes. His contributions continue to influence the field and demonstrate the importance of innovation in industrial applications.