Bio-based method creates polyurethane without toxic chemicals

Diisocyanates are used in the preparation of all polyurethanes, ranging from the foams used in shoe soles to the thermoplastics used in cell phone cases. Diisocyanates are used in the preparation of all polyurethanes, ranging from the foams used in shoe soles to the thermoplastics used in cell phone cases. Biochemistry Polymers Phys.org – latest science and technology news stories