Thermoplastic polyetherimide ester elastomers exhibiting improved thermal properties.

摘要

Polyetherimide ester elastomers exhibiting improved thermal properties prepared from (i) a diol mixture containing at least in excess of 50 mole percent of cyclohexane dimethanol, (ii) at least one dicarboxylic acid, and (iii) either a combination of at least one tricarboxylic acid and at least one poly(oxyalkylene)diamine, or at least one poly(oxyalkylene)diimide diacid. These elastomers are suitable for use in extrusion and molding applications requiring elastomers exhibiting good thermal properties, particularly high melt temperatures.