The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2026
Filed:
Feb. 09, 2022
Sintokogio, Ltd., Nagoya, JP;
Takemoto Yushi Kabushiki Kaisha, Gamagori, JP;
Yusuke Kato, Nagoya, JP;
Toshihiko Zenpo, Nagoya, JP;
Tomohiro Aoki, Nagoya, JP;
Shumma Sato, Gamagori, JP;
SINTOKOGIO, LTD., Nagoya, JP;
TAKEMOTO YUSHI KABUSHIKI KAISHA, Gamagori, JP;
Abstract
A sand mold-forming additive capable of making a sand mold-forming composition having excellent forming property and a sand mold having excellent moisture resistance is provided. The sand mold-forming additive contains 0.01-2.00 parts by weight of an inorganic alkali metal compound (B) per 100 parts by weight of anionic surfactant (A). The inorganic alkali metal compound (B) is at least one selected from sodium chloride and sodium sulfate. The ionic surfactant (A) is preferably at least one selected from alkyl sulfonic acid metal salts (A1), alkyl sulfuric acid metal salts (A2), and polyoxyalkylene alkyl ether sulfuric acid ester metal salts (A3).