Catalyst compositions useful in the production of low or no amine emission flexible polyurethane foam as well as rigid insulating polyurethane foam produced with systems containing polyether, polyester, Mannich polyols as well as organic-halogen containing flame retardants and blowing agents, are disclosed. The catalysts are characterized by the presence of amine compositions containing unsaturated aliphatic substituent together with secondary hydroxyl groups able to bind to polyurethane polymers and render a low odor and no or low amine emissions finished product.

A polyisocyanurate and/or polyurethane (PIR/PUR) comprising material having improved Flame. Smoke and/or Toxicity (FST) retardancy is disclosed and a method for forming said PIR/PUR comprising material. The PIR/PUR material is comprising at least 0.2 wt % of compounds having a number average equivalent weight<160 g/mol and at least one non-polymerized ethylenically unsaturated moiety based on the total weight of the PIR/PUR comprising material, and optionally 0.01 wt % up to 1 wt % of one or more radical initiator compounds based on the total weight of the PIR/PUR comprising material.