The first polyols used for rigid polyurethane (PU) foams were low molecular ... The polyether polyols proved to be superior in rigid PU foam fabrication, when the isocyanate index was low, around ...
According to Agropene's calculations, polyurethane foam rubber accounts for a 105 ... it's now using responsibly sourced cotton and recycled polyester, and IKEA plans to use only renewable and ...