Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1989-07-24
1991-01-08
Simmons, David
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156662, 20419237, 65 315, 65 301, 65 31, C03C 1500, C03C 2506
Patent
active
049832557
ABSTRACT:
The invention relates to a process for removing metal ions, particularly sodium, potassium and/or aluminum ions, from the thin outermost layer of items of glass or ceramic materials with enrichment by silicon dioxide, the items being subjected for a pre-specified time to a plasma - low-pressure plasma or corona discharge-induced plasma - , hydrogen, nitrogen or a noble gas being used as discharge gas.
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Gruenwald Heinrich
Munro Hugh S.
Johnson Lori
Simmons David
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