Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1992-04-01
1993-09-21
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156345, 156654, B44C 122, C03C 1500, C03C 2506
Patent
active
052465403
ABSTRACT:
A method of etching a glass sheet using a curtain coater includes supporting the sheet at its periphery and in a generally horizontal position such that it may sag under its own weight. Sagging causes the uppermost surface of the glass sheet to assume a generally concave form. Etchant solution applied to the uppermost surface flows over the glass to form a nonuniform layer on the uppermost surface. The layer has a minimum thickness at the periphery of the glass sheet. Etchant solution is applied to the glass using a curtain coater designed to handle a corrosive etchant solution. The sheet of glass is supported on a frame including a seal to prevent etchant solution from contacting a second surface of the glass.
REFERENCES:
patent: 4427488 (1984-01-01), Servais et al.
patent: 4505781 (1985-03-01), Cozac et al.
patent: 4624729 (1986-11-01), Bresciani et al.
patent: 4797316 (1989-01-01), Hecq et al.
patent: 4882214 (1989-11-01), Hecq
Burkle advertisement for "Lacquer Curtain Coding Machines", six pages.
Burkle advertisement for "Lacquer Curtain Coding Machine LZE80" two pages.
Black Bros. Roll Coders Catalog, pp. 2-12, copyright 1985.
Browne Robert E.
McDonough Thomas C.
Powell William A.
Tru Vue, Inc.
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