Process for the production of a polyester (co)polymer
AssigneeAvantium Knowledge Centre B.V.
InventorsGerardus Johannes Maria Gruter, Bing Wang, Robert-Jan Van Putten, Bruno Bottega Pergher
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for the production of a polyester (co)polymer, comprising the use of a diguaiacyl dicarboxylate ester as a chain extender, wherein the dicarboxylate is derived from a dicarboxylic acid selected from (hetero)aromatic dicarboxylic acids, and from C3-C18 aliphatic dicarboxylic acids which may be linear, cyclic or branched. The process is an efficient process for the production of novel and existing polyester (co)polymers with high molecular weight, and optionally without the need for the addition of a metal catalyst.
Claims15
A process for the production of a polyester (co)polymer, comprising the use of a diguaiacyl dicarboxylate ester as a chain extender, wherein the dicarboxylate is derived from a dicarboxylic acid selected from (hetero)aromatic dicarboxylic acids and from C3-C18 aliphatic dicarboxylic acids which are linear, cyclic or branched.
Dependencies are inferred from the claim text.