news N,N,N’,N”,N”-Penmethyldipropylene triamine: an ideal water-based polyurethane catalyst option to facilitate green production N,N,N’,N”,N”-Penmethyldipropylene triamine: an ideal water-based polyurethane catalyst option to fac... 03/1215N N”-Penmethyldipropylene triamine: an ideal water-based polyurethane catalyst option to facilitate green production