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US 7,842,632 B2Granted
Pulling roll material for manufacture of sheet glass
AssigneeCorning Incorporated
InventorsDean Veral Neubauer, Maurice Lacasse
Life of this patent
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Abstract
A pulling roll for glass manufacture comprised of a high-temperature millboard material. The millboard comprises aluminosilicate refractory fiber, silicate, mica, and kaolin clay. A method of manufacturing a pulling roll is disclosed, together with a roll produced by the methods disclosed herein. The method comprises forming a pulling roll and densifying at least a portion of the pulling roll by exposing to the pulling roll to high temperatures.
Claims9
A millboard comprising:
- a. from about 5 to about 30 parts by weight aluminosilicate refractory fiber, said aluminosilicate refractory fiber having a length up to 5 microns;
- b. from about 10 to about 30 parts by weight silicate;
- c. from about 5 to about 25 parts by weight mica;
- and
- d. from about 10 to about 35 parts by weight kaolin clay;
- wherein the combination of a, b, c, and d comprises at least 85 weight percent of the millboard.
3 more elements
Dependencies are inferred from the claim text.