Polymerizing vinyl chloride with lowering of scale formation

Details Polymerizing vinyl chloride with lowering of scale formation Polymerizing vinyl chloride with lowering of scale formation

1978-03-20

1979-12-25

Henderson, C. A.

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

Synthetic resins

Polymerizing in reactor of specified material, or in reactor...

526 74, 526202, 526218, 526238, C08F 218, C08F 1808, C08F 1406

Patent

active

041806344

ABSTRACT:
A method for polymerizing vinyl chloride in an aqueous suspension wherein polymer scale is prevented from depositing on walls and other surfaces in contact with monomer in a polymerization reactor. According to the method, one or more compounds selected from iodine salts of alkali metals and alkaline earth metals are added to the polymerization mixture. The effect of this method can be enhanced synergistically by coating a polar organic compound or an organic dye over the surfaces in contact with the monomer.

REFERENCES:
patent: 3467636 (1969-09-01), Nersasian

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