Strong thin membrane structure for use as solar sail comprising

Details Strong thin membrane structure for use as solar sail comprising Strong thin membrane structure for use as solar sail comprising

1979-12-21

1982-03-23

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156176, 156233, 156247, 156281, 427 50, 427160, 427209, 427250, 427251, 4272555, 4272557, 427290, 427296, 427307, 428255, 428446, 428451, 428458, 428461, 4284735, 4284777, 428480, 428523, B05D 500, B05D 506, B32B 1508, B32B 3112, B32B 3300

Patent

active

043212999

ABSTRACT:
Production of strong lightweight membrane structure by applying a thin reflective coating such as aluminum to a rotating cylinder, applying a mesh material such as nylon over the aluminum coating, coating the mesh overlying the aluminum with a polymerizing material such as a para-xylylene monomer gas to polymerize as a film bound to the mesh and the aluminum, and applying an emissivity increasing material such as chromium and silicon monoxide to the polymer film to disperse such material colloidally into the growing polymer film, or applying such material to the final polymer film, and removing the resulting membrane structure from the cylinder. Alternatively, such membrane structure can be formed by etching a substrate in the form of an organic film such as a polyimide, or a metal foil, to remove material from the substrate and reduce its thickness, applying a thin reflective coating such as aluminum on one side of the substrate and applying an emissivity increasing coating such as chromium and silicon monoxide on the reverse side of the substrate.

REFERENCES:
Chemical Abstracts, 89, 25624G.
J. Polym. Sci. Polymer Symposium No. 62, "Electra and Photoresponsive Polymers", Polytech, Inst. of New York, N.Y., (1977).

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