Method of producing a polyester
AssigneeTopsoe A/S
InventorsEsben TAARNING, Lars Saaby PEDERSEN, Christian Mårup OSMUNDSEN, Matthias Josef BEIER
Life of this patent
Estimating the term…
Abstract
A method of producing a polyester, the method comprising: (a) providing a biomass based composition comprising ethylene glycol and having a UV transmittance at 275 nm determined in accordance with ASTM method E2193-16 of less than 40%; (b) contacting the biomass based composition with at least one reagent to form the polyester.
Claims21
A method of producing a polyester, the method comprising:
- (a) providing a biomass based composition comprising ethylene glycol and having a UV transmittance at 275 nm determined in accordance with ASTM method E2193-16 of less than 40%;
- and
- (b) contacting the biomass based composition with at least one reagent to form the polyester.
A biomass based composition comprising ethylene glycol having a UV transmittance at 275 nm determined in accordance with ASTM method E2193-16 of less than 40% and an APHA colour after heating determined according to ASTM D1209-05 of no greater than 20 mg/L PtCo.
Dependencies are inferred from the claim text.