Process for preparing macrocyclic polyesters

Details Process for preparing macrocyclic polyesters Process for preparing macrocyclic polyesters

1994-11-30

1995-08-29

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528272, 528283, 528298, 528308, 5283086, 524390, 524752, C08G 6382

Patent

active

054461227

ABSTRACT:
A method for making macrocyclic polyesters comprises the steps of supplying heat and contacting bis-hydroxyalkyl-terminated diesters or oligomers thereof with high boiling point solvents and esterification catalysts.

REFERENCES:
patent: 4086212 (1978-04-01), Bier et al.
patent: 4107149 (1978-08-01), Bier et al.
patent: 5039783 (1991-08-01), Brunelle et al.
patent: 5214158 (1993-05-01), Brunelle et al.

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