Surfactant composition for foaming sand

Patent metadata

Field	Value
Publication number	US-12152189-B2
Application number	US-202017615385-A
Country	US
Kind code	B2
Filing date	Jun 4, 2020
Priority date	Jun 7, 2019
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A surfactant composition for a foamed sand including 80 to 99.8 mass % of a compound (A) represented by formula (1); 0.1 to 10 mass % of a compound (B) represented by formula (2); and 0.1 to 10 mass % of an amphoteric surfactant (C):R1O-(EO)n—SO3M1  (1)wherein R1 represents a hydrocarbon group having 6 to 22 carbons, EO represents oxyethylene group, n is 1 to 10, and M1 represents an alkali metal, an alkaline earth metal, ammonium or an organic ammonium;R2O—SO3M2  (2)wherein R2 represents a hydrocarbon group having 6 to 22 carbons, and M2 represents an alkali metal, an alkaline earth metal, ammonium or an organic ammonium.

First claim

The invention claimed is:

1. A surfactant composition for a foamed sand, said surfactant composition comprising:
80 to 99.8 mass % of a compound (A) represented by the following formula (1);
0.1 to 10 mass % of a compound (B) represented by the following formula (2); and
0.1 to 10 mass % of an amphoteric surfactant (C):
R 1 O-(EO) n —SO 3 M 1   (1)

wherein in the formula (1),
R 1 represents a hydrocarbon group having 6 to 22 carbons,
EO represents oxyethylene group,
n represents an average molar number added of said oxyethylene group, wherein n is a number from 1 to 10, and
M 1 represents an alkali metal, an alkaline earth metal, ammonium, or an organic ammonium;
R 2 O—SO 3 M 2   (2)

wherein in the formula (2),
R 2 represents a hydrocarbon group having 6 to 22 carbons, and
M 2 represents an alkali metal, an alkaline earth metal, ammonium, or an organic ammonium.

Assignees

• Nof Corp
• Toyota Motor Co Ltd

Inventors

• Sugaya Norihiro
• Komiya Hiroyuki
• Yamada Munehiro
• Watanabe Hirotsune
• Izumi Shogo

Classifications

• B22C1/10

  for influencing the hardening tendency of the mould material (influencing the hardening tendency of the binding agent only B22C1/16) · CPC title

• C09K23/04

  Sulfonates or sulfuric acid ester salts derived from polyhydric alcohols or amino alcohols or derivatives thereof (sulfated or sulfonated fatty oils C09K23/08) · CPC title

• C09K23/08

  Sulfation or sulfonation products of fats, oils, waxes, or higher fatty acids or esters thereof with monovalent alcohols · CPC title

• C09K23/18

  Quaternary ammonium compounds · CPC title

• B22C1/18

  of inorganic agents {(B22C1/162 takes precedence)} · CPC title