Yes. POLYSORB® isosorbide is obtained from sorbitol, a starch derivative. Starch produced by Roquette comes mainly from maize or wheat. Thus, POLYSORB® isosorbide is a bio-based monomer.

Other questions - About Isosorbide

Does the 7 RIC (resin identification code) on plastic mean it contains POLYSORB® isosorbide?

See answer

What is the resin identification code (RIC) for isosorbide-based plastics?

See answer

What can be considered as a POLYSORB® isosorbide derivative?

See answer

Are POLYSORB® isosorbide-based polymers considered bio-based?

See answer

Is the higher heat resistance when using POLYSORB® isosorbide also valid in aromatic systems?

See answer

Is POLYSORB® isosorbide also a linear chain extender?

See answer

What are the USPs when compared directly to 1.4BDO?

See answer