Kao Corporation

Toshihiro Tanaka

Hiroshi Nagumo

Toshiya Hagihara

Hiroki Sawada

Takeshi Tomifuji

Yukinaga Yokota

Akimitsu Sakai

Yuichiro Kobayashi

Hideo Suzuki

Shin Koike

Yasuki Ohtawa

Takatoshi Murase

Jun Kono

Masato Nomura

Kaoru Ohmae

Takanori Nii

Keisuke Chiba

Tatsuhiro Imanaka

Hiroyuki Tamaura

Disclosed is a surfactant composition containing an alkyl sulfate ester salt derivative represented by the following general formula (1). R&#x2014;O&#x2014;(PO)&#x2014;SOm (1) (In the formula, R represents a linear alkyl group having 8-24 carbon atoms; PO represents a propyleneoxy group; n represents an average mole number of added PO that is a number satisfying 0&#x3c;n&#x2266;0.9; and M represents a cation.)

Surfactant composition

The invention relates to a surfactant composition containing an alkyl ether sulfate represented by the following formula (1):RO&#x2014;(PO)(EO)SOM&#x2003;&#x2003;(1)wherein R represents a linear alkyl group having 8 to 24 carbon atoms, PO and EO represent a propyleneoxy group and an ethyleneoxy group, respectively,anddenote the average numbers of added moles of PO and EO, respectively, and are numbers meeting: 0&#x3c;m&#x3c;1 and 0&#x3c;n&#x2266;2.3, respectively, and M represents a cation.

The present invention relates to a process for producing an alkyleneoxide adduct, including the steps of reacting an aliphatic alcohol containing a hydrocarbon group having 6 to 22 carbon atoms with an alkyleneoxide in the presence of a catalyst to obtain a reaction product containing an alkyleneoxide adduct; and subjecting the reaction product successively to acid treatment and reduction treatment, and an alkyleneoxide adduct having a carbonyl value of 5 &#x3bc;mol/g or less. The alkyleneoxide adduct is useful as a raw material of various anionic surfactants, and the anionic surfactants derived from the alkyleneoxide adduct are free from undesirable coloration.

Process for production of alkylene oxide adducts

The present invention relates to an oil or fat composition containing the following components (A) and (B):

Oil or fat composition

Alkoxylation catalyst, process for the preparation of the catalyst and

A working fluid composition for use in a refrigeration system which comprises a refrigerating oil comprising a compound having one or more ketone groups in the molecular structure as a base oil and a hydrofluorocarbon.

Working fluid composition having ketone-containing compound for use in

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Wakayama, Japan

Toshihiro Tanaka