POLYSORB® is a high purity 1,4:3,6-dianhydro-D-glucidol, more commonly called isosorbide*. This sustainable, biodegradable, non-aromatic and bicyclic diol is obtained by dehydration of sorbitol, a derivative of starch, for which Roquette is one of the leading world producers.
With increasing interest in developing sustainable polymers for a broad range of applications, isosorbide has emerged as an attractive renewable feedstock for high-performance materials**.