Process for esterification

Details Process for esterification Process for esterification

1995-02-21

1995-12-19

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528274, 528298, 528302, 528307, 528308, 5283086, 526 62, 526 64, 526 65, 526 67, 526 68, C08G 6302

Patent

active

054769191

ABSTRACT:
A method for the rapid esterification of dicarboxylic acids or the transesterification of lower alkyl carboxylic acid diesters with diols is disclosed. The method includes recycling of evaporated unreacted starting materials and can be carried out at elevated pressures. The resulting esterification or transesterification products can then be polymerized into polyesters, for example by a thin film polymerization method.

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Kumar et al. "Optimization of the Transesterification Stage of Polyethylene Terephthalate Reactors" Polymer Engineering and Science, vol. 24 (No. 3), pp. 185-193, (Feb. 1984).
Patkar and Jabarin "Effect of Diethylene Glycol (DEG) on the Crystallization Behavior of Poly(ethylene terephthalate) (PET)," Journal of Applied Polymer Science, vol. 47, pp. 1749-1763 (1993).

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