Foundry binders
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 23, 1980
Issued Date -
N/A
app pub date -
Dec 19, 1978
filing date -
Jul 21, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a foundry binder comprising a polyisocyanate and a polyhydroxy composition, the polyisocyanate is modified by reaction with a drying oil. The composition is useful in a 'cold box' process.
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