Linear polyesters based on heterocyclic dicarboxylic acids

Details Linear polyesters based on heterocyclic dicarboxylic acids Linear polyesters based on heterocyclic dicarboxylic acids

C - Chemistry, Metallurgy

08

G

402/166

C08G 63/68 (2006.01) C08G 63/685 (2006.01) C08G 73/06 (2006.01)

Patent

CA 1078094

LINEAR POLYESTERS BASED ON HETEROCYCLIC DICARBOXYLIC ACIDS Abstract of the Disclosure New homopolyesters and copolyesters are obtained by polycondensing dicarboxylic acid derivatives which contain a N,N-heterocyclic radical and which are manufactured from cyclic ureides and 4-halogenomethylbenzoic acid derivatives, and, if appropriate terephthalic acid or isophthalic acid derivatives, with alkanediols and/or N,N-heterocyclic diols. The new polyesters, which are distinguished by valuable tough- ness and high Tg values, are particularly suitable for use as "engineering plastics" materials.

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