C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 71/14 (2006.01) B22C 1/22 (2006.01)
Patent
CA 2194430
Broadly, the present invention relates to furan no-bake foundry binders where bisphenol A tar (BPAT) is used to replace a portion of the furfuryl alcohol and any conventional filler optionally included in for binder formulation. Reduction in the amount of furfuryl alcohol in the foundry binder formulation may lead to a reduction in the cost and an improvement in early strength of these formulations. Accordingly, in a furan no-bake foundry binder of a resin derived from a major proportion of furfuryl alcohol and optionally fillers, the improvement which comprises at least a fraction of said furfuryl alcohol being bisphenol A tar. Bisphenol A tar also can replace at least a fraction of any filler included in the binder formulation.
Chang Ken K.
Clingerman Michael C.
Lott Michelle L.
Schneider James T.
Ashland Licensing And Intellectual Property Llc
Ashland Oil Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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