Vertical autoclave for bulk polymerization of vinyl chloride

Details Vertical autoclave for bulk polymerization of vinyl chloride Vertical autoclave for bulk polymerization of vinyl chloride

1979-04-23

1981-07-07

Henderson, C. A.

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

Synthetic resins

Polymerizing in two or more physically distinct zones

260 95R, 422135, 526 75, 526 88, 5263441, C08F 202, C08F 1406

Patent

active

042775850

ABSTRACT:
A vertical autoclave suitable for the bulk polymerization of vinyl chloride based polymers and copolymers embodying agitation means comprising at least one agitator (A) in the form of helicoidal ribbon about a rotatable shaft in the upper portion of the autoclave and an agitator (B) having a rotatable shaft passing through the bottom portion of the autoclave with at least one arm located adjacent to and having a profile corresponding to the bottom of the autoclave, and means for independently driving the agitators (A) and/or (B).

REFERENCES:
patent: 3354136 (1967-11-01), Crawford
patent: 3522227 (1970-07-01), Thomas
patent: 3759879 (1973-09-01), Floros
patent: 3987021 (1976-10-01), Rothert

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