Bridgestone Corp. (TYO: 5108) announced on Dec. 13 that it has successfully synthesized a next-generation polyisoprene rubber (IR). The material features a narrowly controlled molecular structure and uses the company’s proprietary new gadolinium (Gd) polymerization catalyst. The new catalyst enables industrial applications for which conventional Gd catalysts have so far been unsuitable. Although IR is the synthetic rubber most closely...
