Main > POLYMERS > Oligomer > Ester Oligomer > Butylene Terephthalate Oligomer > Cyclic Butylene Terephthalate Olig. > Patent. > Literature > MacroCyclic Oligo(Ester). > Prepn. > TetraMethylene Glycol+ > Terephthaloyl Chloride Reaction. > Solvent: Dry Methylene Chloride. > Catalyst: Amine Selected from: > DiAzaBicyclo[2.2.2]Octane Etc. > Patent Assignee
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