Method for polymerizing ethylenically unsaturated monomers in or

Details Method for polymerizing ethylenically unsaturated monomers in or Method for polymerizing ethylenically unsaturated monomers in or

1976-08-12

1978-08-08

Henderson, Jr., Christopher A.

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

Synthetic resins

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

260880R, 526 72, 526 91, 526 93, 526319, 526328, 526340, 526341, 526343, 526346, C08F 216, C08F 200

Patent

active

041058399

ABSTRACT:
In the polymerization of at least one ethylenically unsaturated monomer other than vinyl chloride, deposition of polymer scale on the inner walls of a polymerization reactor and other surfaces coming into contact with the monomer is effectively prevented (regardless of the type of polymerization used, so long as it takes place in a heterogeneous phase) by coating the surfaces of the reactor with at least one compound selected from organic electron donor compounds and organic electron-acceptor compounds prior to polymerization; the compound or compounds having been or being brought into contact with an oxidizing agent, a reducing agent, an acid or a base, or having been or being irradiated with ultraviolet light.

REFERENCES:
patent: 3661867 (1972-05-01), Koyanagi
patent: 3669946 (1972-06-01), Koyanagi
patent: 3959235 (1976-05-01), Nishigaki
patent: 3962196 (1976-06-01), Weimer

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