news Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation... 04/0721Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation