Continuous process for the production of ethylene terephthalate

Details Continuous process for the production of ethylene terephthalate Continuous process for the production of ethylene terephthalate

1976-10-26

1979-05-08

Danison, Walter C.

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

Synthetic resins

Effecting a change in a polymerization process in response...

528309, C08G 6322

Patent

active

041537661

ABSTRACT:
In a continuous process for the production of ethylene terephthalate polyesters, when the control value for the viscosity which relates to the degree of the polymerization in a polymerization vessel exceeds a predetermined value, a desired command value of the viscosity at the output of the preceding polymerization vessel is automatically revised.

REFERENCES:
patent: T861005 (1969-04-01), Cecchini
patent: 3438942 (1969-04-01), Scheller
patent: 3475392 (1969-10-01), McCoy et al.
patent: 3502622 (1970-03-01), Reichel et al.
patent: 3503937 (1970-03-01), Allen et al.
patent: 3878379 (1975-04-01), Moody et al.

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