Patent ID: 11866546
Assignee: ROQUETTE FRERES
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A thermoplastic polyester comprising:
at least one 1,4:3,6-dianhydro-L-iditol unit (A), in a molar amount ranging from 4 to 90 mol %, the molar amount being expressed relative to the total amount of diols in the thermoplastic polyester,
at least one linear aliphatic diol unit (B),
at least one aromatic dicarboxylic acid unit (C),
the thermoplastic polyester having a reduced viscosity in solution (25° C.; phenol (50 wt. %):ortho-dichlorobenzene (50 wt. %); 5 g of polyester/l) greater than 25 ml/g,
the thermoplastic polyester being free of any 1,4:3,6-dianhydrohexitol unit other than the 1,4:3,6-dianhydro-L-iditol unit (A), and
the thermoplastic polyester having an elongation at break of from 550% to 600%.