Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1978-09-25
1979-12-04
Lazarus, Richard B.
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156344, H01J 950
Patent
active
041768914
ABSTRACT:
In a salvaging method for shadow mask containing glass cathode ray tubes whereby the glass funnel portion is separated from the face panel at the frit seal by etching the external portion of the seal and subsequently creating a thermal shock to fracture the frit seal by causing a temperature differential between the funnel and the panel, the improvement comprising protecting the mask with a chemically basic covering prior to separation to insulate the mask from any acidic material which might be present.
REFERENCES:
patent: 2843925 (1958-07-01), Logue et al.
patent: 2884312 (1959-04-01), Kuryla
patent: 3390033 (1968-06-01), Brown
Antonucci Ermen S.
Cadden Duane L.
Regenbrecht Albert
Schwartz Edward
GTE Sylvania Incorporated
Lazarus Richard B.
McNeill William H.
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