Synvina C.v.

Ate Duursma

Matheus Adrianus Dam

Joel Flores

Gerardus Johannes Maria Gruter

DeeDee Smith

Dee Dee Smith

René Aberson

Gerardus Johannes M Gruter

Rene Aberson

Polyamides are made from the polycondensation of monomers including from 15 to 80 mol % of 2,5-furandicarboxylic acid (FDCA), from 20 to 85 mol % of at least one aromatic dicarboxylic acid and from 50 to 100 mol % of at least one aliphatic diamine selected from those including 6 and 7 carbon atoms. A process allowing the synthesis of high molecular weight polyamides made from the above mentioned monomers is also described. Finally, compositions and articles including the same polyamides are also disclosed.

Polyamides containing the bio-based 2,5-furandicarboxylic acid

A furan-based polyamide is prepared by the following steps: (1) preparing a furan-based oligomer of formula (1) HN&#x2014;R&#x2014;(NH&#x2014;CO&#x2014;F&#x2014;CO&#x2014;NH&#x2014;R)&#x2014;NH(1) where R is a hydrocarbon moiety and F is a furan (cyclo-CHO) moiety and n represents the average degree of oligomerization, and where n is within the range of 1 to 10 by reacting 2,5-furandicarboxylic acid or its derivative with a diamine at a temperature of at most 100&#xb0; C.; (2) contacting the oligomer of step (1) with a bifunctional linker selected from an acid or a derivative thereof where the acid is furandicarboxylic acid or a non-aromatic dicarboxylic acid; provided that if the hydrocarbon moiety R is aromatic, then the bifunctional linker is an aromatic dicarboxylic acid or a derivative thereof, at a mole ratio of the oligomer to the difunctional linker within the range of 0.8 to 1.5 at polycondensation conditions, and (3) isolating the resulting polyamide.

Process for preparing a furan-based polyamide, a furan-based oligomer and compositions and articles comprising the furan-based polyamide

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Amersfoort, Netherlands

Ate Duursma