C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/30 (2006.01)
Patent
CA 2635006
The present invention relates to a process of manufacture of poly-trimethylene ether glycol, in which one or more inorganic compounds are utilized during certain purification steps to reduce phase separation time.
La présente invention concerne un procédé de fabrication de poly-triméthylène-éther-glycol, dans lequel un ou plusieurs composés inorganiques sont utilisés au cours de certaines étapes de purification afin de réduire la durée de séparation des phases.
Ng Howard C.
Sunkara Hari Babu
Wu Zhihong
Zheng Wei
E.i. Du Pont de Nemours And Company
Torys Llp
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