Polymerization method and polymerization apparatus

Details Polymerization method and polymerization apparatus Polymerization method and polymerization apparatus

1998-02-27

1999-11-30

Acquah, Samuel A.

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

Synthetic resins

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

526 60, 526 61, 526 64, C08F 200, C08G 8500

Patent

active

059944811

ABSTRACT:
In a polymerization apparatus in which the power of a motor is transmitted to a stirrer via oil-lubricated transmission box and speed reduction gear, the temperature of the lubricating oil in the transmission box and speed reduction gear is maintained constant by means of a heat exchanger, the torque between the motor and the transmission box or the speed reduction gear is measured with a torque meter, the viscosity of a reaction mixture is calculated from the measured torque and the number of rotation of the stirrer, and the stirrer is kept revolving until the calculated viscosity of the reaction mixture reaches a prescribed value.

REFERENCES:
patent: 5312556 (1994-05-01), Chung et al.
patent: 5401427 (1995-03-01), Chung et al.
patent: 5552068 (1996-09-01), Griffith
patent: 5691283 (1997-11-01), Poat et al.

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