Method for continuous production of high-molecular weight...

Details Method for continuous production of high-molecular weight... Method for continuous production of high-molecular weight...

2007-08-21

2007-08-21

Boykin, Terressa (Department: 1711)

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

Synthetic resins

From carboxylic acid or derivative thereof

C528S283000, C528S309100

Reexamination Certificate

active

11373937

ABSTRACT:
The invention relates to a method for producing high-molecular weight polyesters, such as e.g. polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polynaphthalene terephthalate (PEN), polytrimethylene terephthalate (PTT) and/or polyesters of other dicarboxylic acids and diols including copolymers thereof. The invention relates likewise to a device for implementing this method. The latter concerns a single-stage tower reactor with which a method, comprising only two reactors, is made available for the total process.

REFERENCES:
patent: 3544551 (1985-12-01), None

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