[EN] ISOCYANATO TERMINATED PRECURSOR AND METHOD OF MAKING THE SAME<br/>[FR] PRÉCURSEUR TERMINÉ PAR UN ISOCYANATE ET PROCÉDÉ DE FABRICATION DE CE PRÉCURSEUR
申请人:RENOSOL SYSTEMS LLC
公开号:WO2009026426A1
公开(公告)日:2009-02-26
A method of making a polyurethan product, making an isocyanato terminated precursor for polyurethane and a compound, are disclosed. The method comprises heating an isocyanate containing about two or more isocyanato groups per molecule at a temperature of up to 80 degrees Celsius and at a pressure of about 1 atmosphere. The method further comprises mixing a modified vegetable oil comprising about two or more hydroxyl groups per molecule with the isocyanate at a molar equivalent ratio of at least 2:1 isocyanate to vegetable oil for a predetermined time period to form the isocyanato terminated precursor.