news Enhancing Reaction Selectivity with Trimethylaminoethyl Piperazine Amine Catalyst in Rigid Foam Manufacturing Enhancing Reaction Selectivity with Trimethylaminoethyl Piperazine Amine Catalyst in Rigid Foam Manu... 04/0617Enhancing Reaction Selectivity with Trimethylaminoethyl Piperazine Amine Catalyst in Rigid Foam Manufacturing