C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/209
C08G 63/183 (2006.01) C08G 63/83 (2006.01)
Patent
CA 2017255
TITLE Improved Process for the Production of Polyethyleneterephthalate from Dimethylterephthalate ABSTRACT A process for the removal of manganese catalyst from the bis glycol ester of terephthalic acid, by addlng terephthalic acid and/or isophthalic acid, and aeparating the precipitate.
E.i. Du Pont de Nemours And Company
Michel Robert E.
Sim & Mcburney
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