Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in reactor of specified material – or in reactor...
Patent
1975-10-15
1977-07-26
Holler, Alan
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in reactor of specified material, or in reactor...
134 2, 528484, C08F 220, C08F 1406
Patent
active
040384730
ABSTRACT:
In the aqueous polymerization of vinyl chloride and vinylidene chloride polymers and copolymers in reactors having exposed metal surfaces, undesirable thin polymer build up is noted on the metal surface exposed to the polymerization media. Such polymer build up is substantially reduced if before the polymerization the reactor is first mechanically cleaned to remove visible polymer deposits and then cleaned of organic materials adsorbed on the metal surfaces; and thereafter between polymerization charges as required, by treatment with a hot-alkali detergent mixture to remove organic residues from the surface of said metal surfaces.
REFERENCES:
patent: 3145178 (1964-08-01), Dupre et al.
patent: 3145180 (1964-08-01), Dupre et al.
patent: 3515709 (1970-06-01), Nelson et al.
patent: 3669946 (1972-06-01), Koyanagi et al.
patent: 3865628 (1975-02-01), Callahan et al.
patent: 3915944 (1975-10-01), Burgess et al.
Holler Alan
Powell, Jr. J. Hughes
The B. F. Goodrich Company
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