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Materials
Chinese firm uses Invista process
by Jean-François Tremblay
May 9, 2016
| A version of this story appeared in
Volume 94, Issue 19
Invista has licensed its process for manufacturing polytetramethylene ether glycol to Xinjiang Blue Ridge Tunhe Chemical Industry, enabling the Chinese firm to start up a 46,000-metric-ton-per-year production line last month. PTMEG, also known as polytetrahydrofuran, is used in the production of stretchy fibers such as spandex. Invista had previously licensed its process for producing butanediol to Blue Ridge.
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