Resin binders for foundry sand cores and molds

Details Resin binders for foundry sand cores and molds Resin binders for foundry sand cores and molds

1987-10-08

1989-07-18

Ivy, C. Warren

Metal founding

Process

Shaping a forming surface

523145, 523147, 524594, 164527, C08K 322, C08L 6114, C04B 2612, B22C 1122

Patent

active

048484423

ABSTRACT:
An alkoxy-modified phenolic resole resin providing an improved binder for foundry cores and molds. The resin has predominantly ortho-ortho benzylic ether bridges joining the phenolic nuclei in the resin and at least one alkoxymethylene group for every 20 phenolic nuclei.

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Whitehouse, et al., Phenolic Resins; pp. 66-69; Iliffe Books Ltd.; London 1967.

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