Kao Corporation

Kazunori Aizawa

Osamu Tabata

Hiroshi Nagumo

Toyomi Koike

Kazuhito Miyoshi

Shinji Tsuyutani

Masaru Sakata

Kengo Shibata

Mitsugu Morishita

An anionic surfactant powder prepared by subjecting a mixture of an anionic surfactant and a solvent to microwave irradiation to remove at least a part of the solvent, and a process for preparing the anionic surfactant. The anionic surfactant powder can be suitably used for laundry detergents, detergents for tableware and kitchenware, foaming agents for toothpastes, powdery shampoos, emulsifying agents for polymerization, foaming agents for cement plaster and the like.

Process for removing solvent from anionic surfactant, and anionic surfactant powder produced thereby

A process for preparing a phosphoric ester having reduced odor, comprising contacting a phosphoric ester with at least one of an inert gas and steam at 100&deg; to 160&deg; C. in a packed tower; a process for preparing a phosphoric ester having reduced odor, comprising repeating a set of processes comprising (A) heating a phosphoric ester, and contacting the heated phosphoric ester with at least one of an inert gas and steam; and (B) cooling the phosphoric ester obtained in the step (A); a process for preparing a phosphoric ester having reduced odor, comprising adding water to a phosphoric ester, and distilling water from the phosphoric ester under reduced pressure; and a process for preparing a phosphoric ester having reduced odor, comprising reacting an organic hydroxy compound with a phosphorylation agent, while introducing an inert gas into the mixture of the organic hydroxy compound and the phosphorylation agent. The phosphoric ester is useful for, for instance, a shampoo, a cleaning agent, a facial cleansing agent, an emulsifier, and the like.

Process for preparing phosphoric ester

A method for producing an alkylglycoside by a reaction of a saccharide and a monohydric alcohol, the method comprising the steps of carrying out the reaction of the saccharide and the monohydric alcohol; adjusting a reaction mixture containing an unreacted monohydric alcohol and an alkylglycoside produced to a pH of 2 to 6.5; and removing the unreacted monohydric alcohol from the reaction mixture by distillation to obtain the alkylglycoside, wherein decoloration treatment may be carried out before removing the unreacted monohydric alcohol.

Method for producing alkylglycoside

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Wakayama, Japan

Kazunori Aizawa