Method to improve flowability of alkaline phenolic resin coated

Details Method to improve flowability of alkaline phenolic resin coated Method to improve flowability of alkaline phenolic resin coated

1989-10-10

1991-12-31

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523146, 523147, C08J 6110

Patent

active

050773232

ABSTRACT:
A process for improving the flowability of resin coated sand which comprises the use of a flow promoter with the mixture of sand and resin. Also provided is a foundry mix comprising foundry sand, a resin binder and the flow promoter, as well as a process for making foundry cores and molds using the foundry mix. The resins are ester-curable alkaline phenolic resole resins. The flow promoter is selected from the group consisting of fatty acids, fatty alcohols, fatty amines, fatty amides and fatty alkanolamides.

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