PROCESS OF MAKING A POLY(TRIMETHYLENE TEREPHTHALATE) RESIN HAVING LOW CYCLIC DIMER CONTENT, AND COMPOSITIONS AND ARTICLES THEREFROM

A process for making a high viscosity poly(trimethylene terephthalate) (PTT) resin having a low cyclic dimer content of less than or equal to 1.1 wt % as determined with nuclear magnetic resonance analysis and an intrinsic viscosity in the range of 0.9 to 2.0 dL/g; the PTT resin composition provided...

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Bibliographische Detailangaben
Hauptverfasser: PENN ROBERT E, FRYE ELISHA DANIELLE, DOBRICK BRETT COLLIN, MESSMORE BENJAMIN WEAVER, KURIAN JOSEPH V
Format: Patent
Sprache:eng
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Zusammenfassung:A process for making a high viscosity poly(trimethylene terephthalate) (PTT) resin having a low cyclic dimer content of less than or equal to 1.1 wt % as determined with nuclear magnetic resonance analysis and an intrinsic viscosity in the range of 0.9 to 2.0 dL/g; the PTT resin composition provided by the process; and molded articles derived from the composition are disclosed.