Lion Corporation

Kensuke Itakura

Masahiko Matsubara

Kenji Morimura

Takashi Kobayashi

Hideaki Watanabe

Masashi Hara

Hiroyuki Masui

Daisuke Negishi

Taku Nishio

Yohei Nogami

Yuki Nishiyama

Hiroshi Gotou

Yoichi Ebashi

Akitomo Morita

Madoka Suwa

A coated &#x3b1;-sulfofatty acid alkyl ester salt particle group containing &#x3b1;-sulfofatty acid alkyl ester salt particles (A) and a zeolite particle group-containing coating component (B) with which the particles (A) are coated, in which the zeolite particle group is a zeolite particle group (b1) having a mean particle size of equal to or greater than 0.8 &#x3bc;m and less than 3.8 &#x3bc;m.

Coated [alpha]-sulfofatty acid alkyl ester salt particle group, method for producing same, and powder detergent

The invention provides a fatty acid alkyl ester sulfonate metal salt mixture of (a) a fatty acid alkyl ester sulfonate metal salt having an endothermic peak area at 50 to 130&#xb0; C. of less than 50% relative to the whole endothermic peak area at 0 to 130&#xb0; C. as measured on a differential scanning calorimeter, and (b) a fatty acid alkyl ester sulfonate metal salt having an endothermic peak area at 50 to 130&#xb0; C. of 50% or more relative to the whole endothermic peak area at 0 to 130&#xb0; C. as measured on a differential scanning calorimeter, with a ratio of (a) to (b) by mass of 95/5 or less. The mixture of the invention is excellent in anti-caking properties.

Fatty acid alkyl ester sulfonate metal salt powder mixture and method for producing the same

The present invention relates to a method for producing an aqueous &#x3b1;-SF salt solution that maintains fluidity and has superior production adaptability. The method includes dissolving a solid component (a) in the form of an &#x3b1;-sulfo fatty acid alkyl ester salt and a component (b) in the form of an inorganic sodium salt and/or inorganic potassium salt in water, wherein component (a) is dissolved in water at a temperature of 50&#xb0; C. or higher while maintaining the following condition (i) or (ii):

Method for producing aqueous &#x3b1;-sulfo fatty acid alkyl ester salt solution

A process for producing powder, flakes, or pellets containing &#x3b1;-sulfo fatty acid alkylester salt in high concentrations, the process including: (1) a step of preparing a paste containing &#x3b1;-sulfo fatty acid alkylester salt; (2) a step of aging the thus obtained paste; (3) a step of making the aged paste into flakes or pellets containing equal to or less than 10 wt % of water and then optionally crushing the resulting flakes or pellets into a powder having an average particle diameter of 100-1500 &#x3bc;m; and (4) a step of aging The powder, flakes, or pellets.

Powders, flakes, or pellets containing salts of a sulfo fatty acid alkyl esters in high concentrations, process for production thereof, granulated detergents, and process for production thereof

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Tokyo, Japan

Kensuke Itakura