Metal working – Method of mechanical manufacture – Electrical device making
Patent
1980-03-14
1981-08-25
Walton, Donald L.
Metal working
Method of mechanical manufacture
Electrical device making
H01M 616
Patent
active
042851220
ABSTRACT:
A homogeneous mass of particulate manganese dioxide which has been heat-treated to reduce its moisture content and treated with an organic solvent which substantially fills the pores of the manganese dioxide thereby reducing its affinity for absorbing moisture when exposed to a moisture environment for a fixed time period. The invention also relates to a process for producing the manganese dioxide.
REFERENCES:
patent: 3415687 (1968-12-01), Methlie
patent: 4133856 (1979-01-01), Ikeda et al.
patent: 4197366 (1980-04-01), Tamura et al.
O'Brien Cornelius F.
Union Carbide Corporation
Walton Donald L.
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