Permanent anti-adherent coating for glassmaking moulds and associated equipment
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United States of America Patent
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Feb 21, 1989
Grant Date -
N/A
app pub date -
Dec 23, 1987
filing date -
Dec 30, 1986
priority date (Note) -
Expired
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Abstract
In the production of moulded glass articles, difficulty arises from the risks of adhesion of the glass to the surfaces of the mould, which is made unserviceable, at least for a time. A permanent anti-adherent coating for glassmaking moulds is provided on the mould cavity surfaces, by a metal layer comprising a molybdenum alloy containing 30 to 55% Mo and less than 4% iron. The metal layer may also contain nickel and chromium in significant quantities.
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