news Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation... 04/075Enhancing Catalyst Efficiency: 4-Dimethylaminopyridine (DMAP) in Polyurethane Rigid Foam Formulation