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1. (WO2017004455) COMPOSITIONS DE POLYMÈRES PRODUITS À PARTIR D'ÉTHANOL D'ORIGINE BIOLOGIQUE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

What is claimed is:

1. A polymer composition comprising polyalkylene terephthalate polymer chains, the composition characterized in that, in at least a 10% of the polymer chains, at least two of the carbon atoms in each alkylene terephthalate repeat unit of the polymer chains are derived from ethanol and the polyalkylene terephthalate polymer chains consist of polyethylene terephthalate polymer chains having 10 carbon atoms in the polyethylene terephthalate repeat units; polytrimethylene terephthalate polymer chains having 11 carbon atoms in polytrimethylene terephthalate repeat units; or polybutylene terephthalate polymer chains having 12 carbon atoms in polybutylene terephthalate repeat units.

2. The polymer composition of claim 1 in at least a 10% of the polymer chains, at least four of the carbon atoms in each alkylene terephthalate repeat unit of the polymer chains are derived from ethanol.

3. The polymer composition of claim 1 or 2, wherein in the at least a 10% of the polymer chains at least two carbons atoms in each repeat unit are in the aromatic ring.

4. The polymer composition of claim 3 wherein at least one of the carbon atoms in the aromatic ring that is derived from ethanol is directly bonded to a carboxy group or to a hydrogen atom.

5. The polymer composition of claim 2, wherein the at least four carbon atoms derived from ethanol include two methylene carbon atoms in the alkylene moiety, and two of the carbon atoms in the aromatic ring of the terephthalate moiety.

6. The polymer composition of claim 3, wherein the at least two carbon atoms in the aromatic ring derived from ethanol are adjacent to each other in the ring and optionally one of the at least two carbon atoms in the aromatic ring derived from ethanol is directly bonded to a carboxy group.

7. The polymer composition of claim 3, wherein the composition contains a mixture of alkylene terephthalate repeat units that differ with respect to the position of the carbon atoms that are derived from ethanol in the aromatic rings.

8. The polymer composition of claim 1 or 2, wherein the poly alkylene terephthalate polymer chains characterized in that at least two of the carbon atoms in the repeat unit of the polymer chains are derived from ethanol comprise at least 20%, at least 30%, at least 50%, at least 75%, or at least 90% of all polyalkylene terephthalate polymer chains in the composition.

9. The polymer composition of claim 3, wherein the at least four carbon atoms derived from ethanol include the two methylene carbon atoms in the alkylene glycol unit, and two of the carbon atoms in the aromatic ring.

10. A polymer composition comprising polyethylene terephthalate polymer chains wherein at least two of the ten carbon atoms in at least 10% of the ethylene terephthalate repeat units in the polymer chains are derived from ethanol and optionally the at least two carbon atoms are in the aromatic ring.

11. The polymer composition of claim 10 wherein at four of the ten carbon atoms in at least 10% of the ethylene terephthalate repeat units in the polymer chains are derived from ethanol.

12. The polymer composition of claim 10 or 11 wherein the ethanol is derived from a biological source and/or the carboxy carbon atoms of the polyethylene terephthalate polymer chains are derived from carbon dioxide.

13. A polymer composition comprising polytrimethylene terephthalate polymer chains wherein at least two of the eleven carbon atoms in at least 10% of the trimethylene terephthalate repeat units in the polymer chains are derived from ethanol and optionally the at least two carbon atoms are in the aromatic ring.

14. The polymer composition of claim 13 wherein at four of the ten carbon atoms in at least 10% of the trimethylene terephthalate repeat units in the polymer chains are derived from ethanol.

15. The polymer composition of claim 13 or 14 wherein the ethanol is derived from a biological source and/or the carboxy carbon atoms of the polyethylene terephthalate polymer chains are derived from carbon dioxide.