Treatment of interior surfaces of polymerization reactors to ret

Details Treatment of interior surfaces of polymerization reactors to ret Treatment of interior surfaces of polymerization reactors to ret

1977-02-28

1978-08-08

Smith, Ronald H.

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

Synthetic resins

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

427230, C08F 1000

Patent

active

041058410

ABSTRACT:
A process for retarding undesirable buildup of polymeric material on the internal surfaces of reactors used in the polymerization of substantially water-insoluble ethylenically unsaturated monomer, particularly vinyl chloride monomer, and for significantly reducing the tendency of reactor contents to foam during deoxygenation of such contents prior to subsequent polymerization reactions, such process comprising introducing sulfur trioxide into the reactor in an amount sufficient to provide at least about 0.045 grams of sulfur trioxide per gallon of reactor volume.

REFERENCES:
patent: 2136348 (1938-11-01), Wiley
patent: 2837506 (1958-06-01), Myers
patent: 2942037 (1960-06-01), Aldwyn
patent: 3778423 (1973-11-01), Reiter
patent: 3901755 (1975-08-01), Martin

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