December 5, 2012

Polyols from bio-PDO and succinic acid

DTL's biobased PDO production facility
This year seems to be a good year for expanding DuPont Tate & Lyle's (DTL) bio-based propanediol (PDO) applications. This week, the company announced that its Susterra bio-based PDO combined with bio-succinic acid supplied by Myriant, are now being used by Piedmont Chemical to produce 100% bio-based polyester polyols.

Polyester polyols (dicarboxylic acids + diols) are chemical intermediates used in the production of urethane foams, coatings, adhesives and sealants. The new polyols are said to be functionally equal and cost-competitive with petroleum-derived polyols. DTL said the bio-based polyols do not have green-price premiums.

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