Process for the continuous demonomerization and postcondensation

Details Process for the continuous demonomerization and postcondensation Process for the continuous demonomerization and postcondensation

1984-10-09

1985-09-10

Griffin, Ronald W.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528323, 528326, C08F 600, C01F 700

Patent

active

045407746

ABSTRACT:
This invention relates to a process for carrying out continuous demonomerization and postpolymerization of Polyamide 6 melts and a reactor for carrying out this process. The reactor of this invention has a cylinder with a horizontal axis around which an interior rotor shaped like a cage rotates. The reactor can be partially filled with polymer melt. There is a multitude of elements along the periphery of the rotor which partly dip into the melt and serve to convey the melt through the reactor, generate new surfaces and mix and homogenize the melt as the polymer melt undergoes demonomerization and postpolymerization under vacuum.

REFERENCES:
patent: 2833750 (1958-05-01), Vickers
patent: 3578640 (1971-05-01), Twilley et al.
patent: 3579483 (1971-05-01), Twilley et al.
patent: 3786103 (1974-01-01), Takamatsu et al.

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