Resol phenolic resin binder for hot coating of foundry sand

Details Resol phenolic resin binder for hot coating of foundry sand Resol phenolic resin binder for hot coating of foundry sand

C - Chemistry, Metallurgy

08

L

400/1702, 22/190

C08L 61/04 (2006.01) B22C 1/22 (2006.01) C08K 5/00 (2006.01) C08K 5/20 (2006.01) C08L 61/06 (2006.01)

Patent

CA 1119342

ABSTRACT OF THE DISCLOSURE A phenolic resin binder useful for hot coating foundry sand and comprising a mixture of a solid resol phenolic resin and a lubricant is provided in the form of beads or rods of diameter of about 0.5 to 7 mm and a length of about 0.5 to 30 mm. The beads or rods can be formed directly from a molten mixture of the com- ponents or the molten mixture can first be solidified and thereafter formed into such beads or rods. The process for the hot coating of foundry sand with the phenolic resin binder and the resulting foundry compositions, molds and cores are also disclosed.

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