Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1980-08-28
1982-07-20
Hoag, Willard E.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
65 41, 65 43, 156 82, 156 89, 156169, 156173, 156175, 1563082, 264 56, 264 80, 264285, 264332, 428105, 428113, 428219, 428220, 428296, 428391, 428392, 428426, C03B 2300, B32B 1702
Patent
active
043406270
ABSTRACT:
A method is described for the production of porous bodies from vitreous silica without the use of tools. Vitreous silica wool and/or threads are wound in layers on a form. After the coil has attained a certain minimum thickness, the threads of each succeeding layer are permanently bonded by heating the threads of the preceding layer at the points where the threads cross. The form is removed, and then the threads on the inside of the body are bonded together.
The bodies are used for the production of high-purity blocks of silicon for solar cells.
REFERENCES:
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patent: 3184092 (1965-05-01), George
patent: 3632460 (1972-01-01), Palfreyman
patent: 3645833 (1972-02-01), Figge
patent: 3673049 (1972-06-01), Giffen
patent: 3707415 (1972-12-01), Golladay et al.
patent: 3730795 (1973-05-01), Medney et al.
patent: 3794540 (1974-02-01), Griffith
patent: 4097293 (1978-06-01), Kometa et al.
Grzybowski Holger
Herzog Heinz
Mohn Heinrich
Schulke Karl-Albert
Heraeus Quarzschmelze GmbH
Hoag Willard E.
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