General Electric Company

Sabic Innovative Plastics IP B.v.

Paola Marchese

Daniel Joseph Brunelle

Corrado Berti

Martino Colonna

Maurizio Fiorini

Francesco Pilati

Massimo Messori

Elisabetta Marianucci

Laura Sisti

Annamaria Celli

Martino Collona

Poly(1,4-cyclohexanedicarboxylate)s, especially poly(1,4-cyclohexanedimethylene-1,4-cyclohexanedicarboxylate), are prepared from at least one relatively non-volatile diol, such as 1,4-cyclohexanedimethanol, and cyclohexane-1,4-dicarboxylic acid by an esterification process in the presence of a catalyst, at a maximum temperature of about 260&deg;. In one embodiment the procedure employs a two-step process, the second of which may be performed in the melt or in the solid state. A volatile diol such as ethylene glycol may also be present.

Method for preparing poly(cyclohexane-1,4-dicarboxylate)s from cyclohexane-1,4-dicarboxylic acid, and composition

Growing community of inventors

Bologna, Italy

Paola Marchese