Kao Corporation

Hiroshi Hori

Yohei Yoshikawa

Yoshinori Mitsuda

Yasuhiro Doi

Yoshifumi Nishimoto

Shogo Kamenoue

Shunsuke Koriki

Takashi Wakasa

Takashi Mizooku

Akiyoshi Kimura

Ryuya Arata

Jun Naganuma

Hiroya Shiba

Toku Fujioka

The present invention provides: an oil agent additive that is easily soluble in an oil agent and is outstandingly effective in reducing the friction coefficient; and an oil agent composition that contains the oil agent additive. This oil agent additive contains at least one compound represented by a Chemical Formula (1). (In the formula: Rand Rare each an aliphatic hydrocarbon group with a carbon number of 1-33; the total carbon number of Rand Ris 2-34; X is a single bond or an aliphatic hydrocarbon group with a carbon number of 1-5; and A is &#x2014;O&#x2014;CH&#x2014;CH(OH)&#x2014;CHOH or &#x2014;O&#x2014;CH(&#x2014;CH&#x2014;OH).)

Oil agent additive and oil agent composition

The present invention provides: a surfactant that has outstanding emulsifiability in oil, wetting properties with respect to matter, osmotic properties with respect to fiber products, and washability; and a surfactant composition that contains the surfactant. This surfactant contains at least one compound represented by a Chemical Formula (1). (In the formula: Ris a hydrogen atom or an aliphatic hydrocarbon group with a carbon number of 1-33; Ris an aliphatic hydrocarbon group with a carbon number of 1-33; the total carbon number of Rand Ris 1-34; X is a single bond or an aliphatic hydrocarbon group with a carbon number of 1-5; either Aor Ais &#x2014;OH; and the other is &#x2014;O&#x2014;CH&#x2014;CH(OH)&#x2014;CHOH or &#x2014;O&#x2014;CH(&#x2014;CH&#x2014;OH).)

Surfactant and surfactant composition

The present invention provides: a rust inhibitor that has excellent rust inhibiting and anti-corrosive properties, not only on iron members, but also on non-iron metal members, and can prevent rust and corrosion over long periods; a rust inhibitor composition that contains the rust inhibitor, a coating formation material; a coating obtained from the rust inhibitor, the rust inhibitor composition, or the coating formation material; and a metal component that comprises the coating. This rust inhibitor contains at least one compound represented by a Chemical Formula (1). (In the formula: Ris a hydrogen atom or an aliphatic hydrocarbon group with a carbon number of 1-33; Ris an aliphatic hydrocarbon group with a carbon number of 1-33; the total carbon number of Rand Ris 1-34; X is a single bond or an aliphatic hydrocarbon group with a carbon number of 1-5; either Aor Ais &#x2014;OH; and the other is &#x2014;O&#x2014;CH&#x2014;CH(OH)&#x2014;CHOH or &#x2014;O&#x2014;CH(&#x2014;CH&#x2014;OH).)

Rust inhibitor, rust inhibitor composition, coating formation material, coating, and metal component

The present invention provides a co-surfactant which, when used in combination with a surfactant, can reduce the size of the surfactant micelle and can enhance the functions of the surfactant, such as the expression of microemulsion formation performance. This co-surfactant contains at least one compound represented by chemical formula (1). (In the formula, Ris a hydrogen atom or a C-Caliphatic hydrocarbon group, Ris a C-Caliphatic hydrocarbon group, the total number of carbons of Rand Ris 6-34, X is a single bond or a C-Caliphatic hydrocarbon group, and one of Aand Ais &#x2014;OH and the other is &#x2014;O&#x2014;CH&#x2014;CH(OH)&#x2014;CHOH or &#x2014;O&#x2014;CH(&#x2014;CH&#x2014;OH).)

Co-surfactant, surfactant composition, and composition for oil recovery

Provided are an internal olefin sulfonate composition which is capable of sufficiently enhancing foamability, foam dissipation property free from a slimy feeling during rinsing, and a feel after cleansing and subsequent drying, and a cleansing composition containing the same. The internal olefin sulfonate composition comprises (A) an internal olefin sulfonate having 16 carbon atoms and (B) an internal olefin sulfonate having 12 carbon atoms, in which a content mass ratio of the component (A) to the component (B), (A/B), is from 10/90 to 90/10.

Internal olefin sulfonate composition

Provided is an internal olefin sulfonate composition which is capable of exerting good foamability together with good volume of foam, foaming speed, foam dissipation property, foam quality, foam durability in the presence of sebum, and volume of foam in the presence of sebum at high levels, and a cleansing composition containing the same. The internal olefin sulfonate composition of the present invention comprises (A) an internal olefin sulfonate having 16 carbon atoms and (B) an internal olefin sulfonate having 18 carbon atoms, wherein a mass content ratio (A/B) of component (A) to component (B) is from 75/25 to 90/10, and wherein a mass ratio (hydroxy form/olefin form) of a content of a hydroxy form in the internal olefin sulfonate of the component (A) and the component (B) to a content of an olefin form in the internal olefin sulfonate of the component (A) and the component (B) is from 75/25 to 100/0.

Internal olefin sulfonate composition and cleansing composition containing same

Provided are an internal olefin sulfonate composition which is capable of sufficiently enhancing foamability, light foam quality, and instantaneous foam dissipation property, and a cleansing composition containing the internal olefin sulfonate composition. The internal olefin sulfonate composition comprises (A) an internal olefin sulfonate having 12 carbon atoms and (B) an internal olefin sulfonate having 14 carbon atoms, wherein a content mass ratio of the component (A) to the component (B), (A/B), is from 10/90 to 90/10, and a total content of the component (A) and the component (B) in the internal olefin sulfonate is from 60 to 100% by mass.

Provided are an internal olefin sulfonate composition which is capable of sufficiently enhancing foamability, foam lubricity and volume of foam, and a cleansing composition containing the same. The internal olefin sulfonate composition comprises (A) an internal olefin sulfonate having 16 carbon atoms and (B) an internal olefin sulfonate having 14 carbon atoms, in which a content mass ratio of the component (A) to the component (B), (A/B), is from 80/20 to 90/10.

Provided are an internal olefin sulfonate composition which is capable of sufficiently enhancing foamability, foam spreadability, and foam dissipation property, and a cleansing composition containing the same. The internal olefin sulfonate composition comprises (A) an internal olefin sulfonate having 16 carbon atoms and (B) an internal olefin sulfonate having 14 carbon atoms, wherein a content mass ratio of the component (A) to the component (B), (A/B), is from 10/90 to 70/30, and a content of the internal olefin sulfonate having 18 or more carbon atoms is 5% by mass or less.

The present invention provides a method for producing a high-quality internal olefin sulfonate in which the content of any internal olefin and inorganic substance is small. This method for producing an internal olefin sulfonate, comprising: a sulfonating step of causing an internal olefin to react with sulfur trioxide to yield a sulfonated internal olefin; a neutralizing step of mixing the resultant sulfonated internal olefin with an aqueous alkaline solution at 40&#xb0; C. or lower to yield a mixture, and applying shearing force to the mixture until the particle diameter of oil droplets of an oily product of the mixture turns to 10 &#x3bc;m or less to yield a neutralized product; and a hydrolyzing step of hydrolyzing the resultant neutralized product.

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Wakayama, Japan

Hiroshi Hori