Method of producing effective porous glass shapes

Details Method of producing effective porous glass shapes Method of producing effective porous glass shapes

1984-11-30

1990-10-30

Schor, Kenneth M.

Glass manufacturing

Processes

Forming product or preform from molten glass

65 214, 65 31, C03B 37075, C03B 1910, C03C 1500

Patent

active

049666134

ABSTRACT:
Porous glass shapes with effective pores are produced by a method which also reduces the frequency of breakage of the glass shapes. The method includes: producing a plurality of the glass shapes, depositing a fluid chemical treatment with one or more carbonaceous materials on a substantial portion of the surfaces of the glass shapes, heat treating the glass shapes to phase separate components of the glass, leaching the phase separated glass shapes to remove leachable components to produce pores in the glass shapes, and removing any residual carbonaceous material. The various forms of glass shapes include particles, platelets, flakes, beads, fibers both solid and hollow, tubes and capillaries, which are essentially free of carbonaceous material.

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