The composition, premix - for the preparation and process for the manufacture of polyurethane foam or polyurethane modified polyurethane foam or polyurethane modified, and.Thermal insulating material

摘要

"Composition, premix - for the preparation and process for the manufacture of polyurethane foam or polyurethane modified polyurethane foam or polyurethane modified, and.Thermal insulating material.A composition comprising 1,1,1,3,3, pentafluoro butane (HFC - 365mfc) and 1,1,1,3,3 - pentafluoro - Propane (HFC - 245fa) in a ratio by weight of HFC - 365mfc / HFC - 245fa 60: 40 to 75: 25.