Method for continuous production of cross-linked polymer

Details Method for continuous production of cross-linked polymer Method for continuous production of cross-linked polymer

1985-10-24

1986-11-25

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F 210

Patent

active

046250018

ABSTRACT:
A method for the continuous production of a cross-linked polymer having a low proportion of large particles, comprising the steps of continuously feeding the aqueous solution of a monomer capable of being converted by aqueous solution polymerization into a water-containing cross-linked gel polymer and a polymerization initiator to a vessel provided with a plurality of mutually parallel rotary stirring shafts each fitted with stirring blades, finely dividing a water-containing gel polymer issuing from the polymerization in progress by the shearing force of stirring blades generated by the rotation of said stirring shafts while allowing the radical aqueous solution polymerization to proceed without interruption, and continuously discharging the resultant finely divided water-containing gel polymer out of said vessel.

REFERENCES:
patent: 2820777 (1958-01-01), Suen
patent: 3784597 (1974-01-01), Fujimoto
patent: 4172066 (1979-10-01), Zweigle

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