Tetramethylimidazolidinediylpropylamine (TMBPA): A Comprehensive Review of its Role in Reducing Blowing Agent Emissions Introduction Tetramethylimidazolidinediylpropylamine (TMBPA), often used as a catalyst in polyurethane (PU) and polyisocyanurate (PIR) foam production, has garnered significant attention due to its ability to reduce the emissions of blowing agents. The production of these foams typically relies on blowing agents to...