Method of accelerating the breakdown of phenolic resin bonded co

Details Method of accelerating the breakdown of phenolic resin bonded co Method of accelerating the breakdown of phenolic resin bonded co

1983-10-12

1986-04-22

Hayes, Lorenzo B.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

164526, 164527, 523146, B22C 1122

Patent

active

045843287

ABSTRACT:
A method of accelerating the breakdown of phenolic resin bonded cores by means of adding a basic salt of alkali metals in powder form to phenolic resin coated sand is disclosed. The basic salt is selected from the group consisting of alkali metal carbonates, bicarbonates and organic acid salts, and mixtures thereof, and is microcapsulated with plastic.

REFERENCES:
patent: 3666703 (1972-05-01), Murata et al.
patent: 4459376 (1984-07-01), Matsushima et al.
patent: 4468486 (1984-08-01), Matsushima et al.

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