Process for the production of a polyester having a reduced crystallization temperature
AssigneesIfp Energies Nouvelles, Jeplan, Inc.
InventorsGuillaume BLANCKE, David CHICHE, Frederic FAVRE, Damien LEINEKUGEL LE COCQ, Adrien MEKKI-BERRADA
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Abstract
The present invention relates to a process for the production of a polyester, comprising: a) a stage of esterification of a mixture comprising a monomer A of formula 1 and a monomer B of formula 2 or a monomer A of formula 1, a monomer B of formula 2 and isophthalic acid, in which R1 is chosen from the group consisting of: —(CH2)n—, with n an integer of between 2 and 4, —(CH2—CHR2)—, with R2 chosen from linear or branched alkyl groups comprising between 1 and 6 carbon atoms (C1-C6) and a phenyl group, then b) a stage of polycondensation.
Claims19
A process for the production of a polyester, comprising:
- a) a stage of esterification of a mixture comprising a monomer A of formula 1 and a monomer B of formula 2 or a monomer A of formula 1, a monomer B of formula 2 and isophthalic acid, in order to obtain an oligomeric intermediate,
- in which R1 is chosen from the group consisting of:
- —(CH2)n—, with n an integer of between 2 and 4,
- —(CH2—CHR2)—, with R2 chosen from linear or branched alkyl groups comprising between 1 and 6 carbon atoms (C1-C6) and a phenyl group, and
- b) a stage of polycondensation of the oligomeric intermediate.
Dependencies are inferred from the claim text.