Process for the crystallization of polyester resins

Details Process for the crystallization of polyester resins Process for the crystallization of polyester resins

1995-11-20

1998-02-03

Acquah, Samuel A.

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

Synthetic resins

From carboxylic acid or derivative thereof

5283082, 5283083, 528481, 528492, 528502, 528503, C08G 6300, C08F 600

Patent

active

057145717

ABSTRACT:
Aromatic polyester resins are continuously crystallized in a fluid bed crystallizer, where the fluidizing gas (nitrogen) enters at a temperature not lower than 195.degree. C. and the average residence time is higher than 5 minutes.

REFERENCES:
patent: 3405098 (1968-10-01), Heighton et al.
patent: 5119570 (1992-06-01), Russemeyer et al.

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