Deing Sheng focuses on cyclopentane, isopentane, PU foam material, R-600a eco-friendly refrigerant, etc. Cyclopentane/Isopentane is a new foaming agent for PU rigid polyurethane foam, used for replacing CFCS which is harmful for atmospheric ozone and broadly used in producing CFC-free refrigerator, freezer, and pipe insulation. With the coming of the ODS-disabled requirements in Montreal Convention, CFCs & HCFCs won’t be allowed soon. At that time, cyclopentane/isopentane must will be the star in polyurethane foam field. It can also be used for organic synthesis or as dissolvent.