The composite is based on a double network structure developed by Hokkaido University ‘s GUN Cheng Ping. It is prepared by tough polymerization of rubber materials and improves fuel economy and strength. Bridgestone claims to have achieved a completely new rubber material that improves the tire’s fuel economy characteristics by 15%, and the strength about five times. The studies at Hokkaido University were supported by JST.

JST news release, June 25, 2018