Asahi Rubber Develops Adhesive-Free PTFE Laminate for Synthetic Rubber Jun. 9, 2017 Asahi Rubber Inc. (TYO:5162) has developed a technology for laminating chlorinated isobutylene-isoprene rubber (CIIR) and styrene-butadiene rubber (SBR) with polytetrafluoroethylene…... Please subscribe to read the full story. Subscribe Free Trial