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Main.POLYMERS.Oligomer.Ester Oligomer.Butylene Terephthalate Oligomer.Cyclic Butylene Terephthalate Olig..Patent..Literature.Poly(Ester). Composites..Prepn..MacroCyclic Oligo(Ester)..Mixed with Catalyst Selected from.2,2-Di-n-Bu-2-Stanna-1,3-Dioxa.Cycloheptane. Etc..Mixed with Filler (Chopped Fibers).(Satin Weave E-Glass Fabric.Coated with Epoxy-Silane Size Ag.).Whole Compn. so far is LIQUID..Thermal Polymn..(LIQUID Cyclic Oligo(Ester) Convert.to SOLID Linear Poly(Ester)).Patent Assignee |