Isocyanate trimerization catalyst for making polyisocyanurate comprising foams

The invention discloses an isocyanate trimerization catalyst for making polyisocyanurate comprising foams. A trimerization catalyst composition suitable for making a polyisocyanurate comprises (insulation) foam, said composition comprising at least a trimerization catalyst compound selected from one or more organic salts from alkoxides wherein said organic salt is selected from alkali metal, earth alkali metal, a transition metal such as Ti and/or quaternary ammonium organic salts. 适合用于制造含聚异氰脲酸酯（隔热）泡沫体的三聚催化剂组合物，所述组合物至少包含三聚催化剂化合物，所述三聚催化剂化合物选自来自醇盐的种或多种有机盐，其中所述有机盐选自碱金属、碱土金属、过渡金属（例如Ti）和/或季铵有机盐。