Lion Corporation

Masahiko Matsubara

Kensuke Itakura

Daisuke Negishi

Naoki Nakamura

Yutaka Abe

Hiroyuki Masui

Nobukazu Shogase

Kenji Morimura

Taku Nishio

Takao Matsuo

Toru Yoshii

Akitomo Morita

Yuki Nishiyama

Madoka Suwa

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

A solid fatty acid alkyl ester sulfonate metal salt is disclosed having an endothermic peak area between 50&#xb0; C. and 130&#xb0; C. of 50% or more relative to the whole endothermic peak area between 0&#xb0; C. and 130&#xb0; C. when determined using a differential scanning calorimter. A method for producing a fatty acid alkyl ester sulfonate metal salt powder is also disclosed, including a step of pulverizing the solid fatty acid alkyl ester sulfonate metal salt in a pulverizer, with the internal temperature of the pulverizer being adjusted to 30&#xb0; C. to 50&#xb0; C.

Solid fatty alkyl ester sulfonate metal salt and method for producing powder thereof with sharp particle size distribution

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

Masahiko Matsubara