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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

Is POLYSORB® isosorbide also a linear chain extender?

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

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What are the USPs when compared directly to 1.4BDO?

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

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

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What can be considered as a POLYSORB® isosorbide derivative?

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

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