news Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation... 04/0725Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation