Kyoraku Boosts Fuel Efficiency With Insulating Foam Ducts Oct. 14, 2016 Filed Under: Products Tagged With: Automotive, foam ducts, Kyoraku, PE, polyethylene, polypropylene, PPKyoraku Co. Ltd. has announced test results showing that use of its ducts made of polypropylene (PP) foam in automotive…... Please subscribe to read the full story. Subscribe Free Trial Related Articles:Inoac Readies to Hit Market With Newly Developed ProductsYokohama Rubber Cuts Weight of Automotive Air Conditioning…Japanese Government Takes Aim at Commercialization of…Aftermath of US Hurricane Damage Spells Trouble for…Renewables-Derived Synthetic Fuel Garners Attention as…Joint Research Finds Ionic SIS to Have Better Impact…