Stock material or miscellaneous articles – Structurally defined web or sheet – Longitudinal or transverse tubular cavity or cell
Patent
1985-07-01
1987-10-20
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Longitudinal or transverse tubular cavity or cell
428189, 4283159, 428543, 502 60, 502 64, 156643, 156644, 156655, 156657, 156DIG111, 427270, 427271, 427272, B05D 132, B32B 326, B32B 300, B01J 2904
Patent
active
047013664
ABSTRACT:
A high surface area substrate with controlled pore size and slot geometry is made by depositing at least two materials in alternating layers. The film is then broken up and one of the materials is etched away to produce a slotted surface structure. These slots can add size and shape selectively to separations and catalytic processes which because of the uniform and controllable dimensions (>5A) would be superior to that obtainable from zeolites and clays.
REFERENCES:
patent: 4407695 (1983-10-01), Deckman et al.
H. W. Deckman, J. H. Dunsmuir and B. Abeles, "Transmission Electron Microscopy of Hydrogenated Amorphous Semiconductor Superlattices", Appl. Phys. Lett., 46, 171, [1985].
H. W. Deckman and J. Dunsmuir, "Natural Lithography", Appl. Phys. Lett., 41, 377 [1982].
L. Esaki, R. Tsu, "Superlattice and Negative Differential Conductivity in Semiconductors, IBM J. Res. Develop, Jan. 1970, pp. 61-65.
Abeles Benjamin
Deckman Harry W.
Stephens Richard B.
Tiedje J. Thomas
Exxon Research and Engineering Company
Hantman Ronald D.
Lesmes George F.
Rucker Susan S.
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