Foundry binders
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 24, 1980
Grant Date -
N/A
app pub date -
Sep 26, 1977
filing date -
Jul 21, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A foundry composition for use in forming foundry moulds or cores comprises an aggregate mixed with a binder which includes a polyisocyanate, a polyfunctional phenol and an aliphatic polyol with the weight of the phenol exceeding that of the polyol. The composition may be used in a 'cold-box' process.
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