Glass manufacturing – Processes – Utilizing parting or lubricating layer
Patent
1986-12-01
1987-08-04
Kellogg, Arthur
Glass manufacturing
Processes
Utilizing parting or lubricating layer
65 601, 65 605, 65 6052, 65106, C03B 23023, C03C 804
Patent
active
046843892
ABSTRACT:
This specification is directed to a method of forming a glass sheet with an oil-base ceramic paint thereon, the method having the following steps. An oil-base ceramic paint is applied to the glass sheet. The oil-base ceramic paint includes normal ceramic paint components along with, as a new component thereof, finely divided zinc metal powder. The glass sheet is heated to a temperature which softens the glass sheet sufficiently so that the glass sheet can be formed. The glass sheet and the ceramic paint thereon are engaged with a fiberglass covered forming die to form the heated glass sheet to a desired shape. The forming die is removed from engagement with the glass sheet. The finely divided zinc metal powder addition to the ceramic paint is credited with being effective to prevent sticking of any of the ceramic paint to the forming die. The glass sheet is cooled to obtain a formed glass sheet with a ceramic paint thereon.
REFERENCES:
patent: 4160061 (1979-07-01), Okino et al.
patent: 4329379 (1982-05-01), Terneu et al.
patent: 4596590 (1986-06-01), Boaz
Ford Motor Company
Johnson William E.
Kellogg Arthur
Sadler Clifford L.
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