Takemoto Yushi Kabushiki Kaisha

Sintokogio, Ltd.

Shumma Sato

Yusuke Kato

Tomohiro Aoki

Yusuke Nishi

Satoshi Oya

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.

Additive for forming sand mold, sand composition for forming sand mold, method for producing sand mold, and sand mold

Modifying agents for polyolefin resin films include a partial ester of a tri- to hexahydric polyol with a straight chain aliphatic carboxylic acid having 8 to 22 carbon atoms. The partial ester contains 70% by mass or more in total of monoesters and diesters. The mass ratio of the monoester content to the diester content is monoester/diester mass=30/70 to 86/14. This modifying agent for polyolefin resin films is applied to a polyolefin resin film in which the content of a diethanolamine compound having an alkyl group or alkenyl group having 8 to 22 carbon atoms or a diethanolamide compound having an alkyl group or alkenyl group having 8 to 22 carbon atoms is 0.02% by mass or less, and the content of an alkylsulfonic acid alkali metal salt is 0.004% by mass or less.

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Gamagori, Japan

Shumma Sato