C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/152, 22/166,
C08G 18/50 (2006.01) B22C 1/22 (2006.01) C08G 18/32 (2006.01)
Patent
CA 1155997
ABSTRACT No Bake foundry cores and molds for casting metals are prepared by using a binder comprising a polyol generally derived from alkoxylating an amine compound and a polyisocyanate. The binder is especially useful for casting non-ferrous metals, for example, the casting of aluminum, magnesium and other light weight metals. The cores and molds produced for casting aluminum and other light weight metals exhibit excellent shakeout while retain- ing other desirable core and mold properties. In addition the binders of this invention would have been observed to have an autocatalytic nature.
329489
Ashland Oil Inc.
Gowling Lafleur Henderson Llp
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