Celso Toyoshima
Technical Application Manager

Celso Toyoshima is currently the Applied Technology Manager for polyurethane foam applications in Latin America.  He received a Bachelor’s degree in Chemical Engineering from the Universidade de São Paulo, and began his career in the polyurethane industry in 1997, providing technical service for a main raw material supplier.  Celso joined Evonik in 2009 to lead the technical activities of the Comfort & Insulation laboratory in Americana Brazil to screen and develop new surfactants, catalysts and additives that improve the processing and quality of polyurethane foam.

Presentation details:

April 10 2019 | 16:00

Silicone surfactants with low levels of cyclics which optimise blow efficiency of flexible block foam 

  • Introduction of the development of a new low VOC silicone surfactant optimized to increase the gas yield of conventional flexible slabstock foam.
  • Data from lab studies and machine trials that show reduced top-to-bottom density spreads and increased block heights when using this new surfactant in both discontinuous (cylinder and box) as well as continuous block foam processes.  
  • How flexible foam manufacturers will be able to improve their chemical conversion efficiencies and produce foam at a lower cost by unit volume.



 June 29th, 2021


June 30th, 2021


July 1st, 2021