Polyurethane Value Chain


The chemistry of converting BDO to THF and subsequently to PTMEG is show here:

The simplified process flow diagram for INVISTA’s THF/PTMEG process technology offered for license is shown here:

THF PTMEG Diagram 2

Reference List

Download a copy of the reference list (Adobe Acrobat required).


IPT's technology offerings include a Technology Package that comprises a Process and Basic Design Package (PBDP), technology & operating know-how, market knowledge and project execution resources.  The size of the plant can be configured to meet the needs of the client. IPT also offers on-going Technical Services and the potential to enter into off-take agreements with its licensees.

Key Features

  • Robust and efficient process from acetylene
  • Low capital cost for BDO
    • Active catalyst
    • High pressure hydrogenation
    • Efficient refining
  • Over 40 years of operating experience and technology improvement