98766 ⎘
Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen; Processes; Catalysts containing secondary or tertiary amines or salts thereof in vaporous state
Polyurethaner-based binder for producing cores and casting molds using isocyanates containing a uretonimine and/or carbodiimide group, a mold material mixture containing said binder, and a method using said binder