Yokohama team acknowledged for cashew nut shell innovation
Back in the late 1980s and early 1990s, a group of four men working for Yokohama Rubber developed a bead filler compound for high performance tyres based on polymerised cardanol, a chemical derived from liquid extracted out of cashew nut shells. Cashew based products were already in use to improve bleeding on the surface of green rubber, but the cardanol based product developed by Shineru Shinoda, Masayoshi Daio, Hideki Ishida and Tetsuji Kawazura providing an extremely high hardness after vulcanisation while at the same time keeping the viscosity of the compound low during processing. Some two decades later, on February 4, 2011, the Yokohama Rubber team’s efforts were acknowledged with their receipt of the “Mortimer T. Harvey Award 2010” from Cardolite Corporation, a leading manufacturer of cashew nutshell liquid products.