B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
22/164, 22/190,
B22C 1/22 (2006.01) B22C 9/02 (2006.01) B22C 9/10 (2006.01) C08K 3/36 (2006.01) C08K 5/13 (2006.01)
Patent
CA 1115882
ABSTRACT OF THE DISCLOSURE Shell cores and molds are prepared more rapidly by the shell process using resin coated sands wherein the resin is a phenol-formaldehyde novalak resin but having a small amount, e.g. about 1 to about 10 percent by weight, of resorcinol incorporated therein whereby a significant reduction in the cycle time required to produce the cores or molds is achieved.
296763
Cremeans George E.
Luttinger Manfred
Nowacki Louis J.
Bereskin & Parr
Borden Inc.
Manley Bros. Of Indiana Inc.
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