cost-effective use of tetramethylimidazolidinediylpropylamine (tmbpa) in mass-produced insulation materials abstract: tetramethylimidazolidinediylpropylamine (tmbpa) is a tertiary amine catalyst commonly employed in the production of polyurethane (pu) foams, a widely used class of insulation materials. this article explores the cost-effective utilization of tmbpa in mass-produced insulation materials, focusing on its role in catalyzing the blowing and gelling...