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US 12,157,162 B2Granted
Additive for forming sand mold, sand composition for forming sand mold, method for producing sand mold, and sand mold
AssigneesTakemoto Yushi Kabushiki Kaisha, Sintokogio, Ltd.
InventorsYusuke Kato, Tomohiro Aoki, Shumma Sato
Life of this patent
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Abstract
The additive composition of the present invention is one blended in a sand composition which is subjected to foaming to mold a sand mold, and includes (A) an alkylsulfonate metal salt having an alkyl group with 9 to 22 carbon atoms. The additive composition may further include at least one component selected from a group consisting of (B) an alkylsulfate metal salt, (C) a polyoxyalkylene alkyl ether sulfate metal salt, and (D) an alkylbenzene sulfonate metal salt.
Claims11
An additive composition for a foamed sand, the additive composition comprising:
- (A) an alkylsulfonate metal salt having an alkyl group with 9 to 22 carbon atoms and at least one component selected from a group consisting of:
- (B) an alkylsulfate metal salt;
- (C) a polyoxyalkylene alkyl ether sulfate metal salt;
- and (D) an alkylbenzene sulfonate metal salt.
1 more element
Dependencies are inferred from the claim text.