Kao Corporation

Teikoku Oil Co., Ltd.

Karonite Chemical Co., Ltd.

Takayuki Ikenaga

Yasuo Ishii

Atsuhito Mori

Hiroki Sawada

Hiromichi Takahashi

Hiroshi Mizuhata

Shoichi Murata

Shingo Tanaka

Shogo Kamenoue

Yoshinori Mitsuda

Koji Shimokusa

Yoichi Ishibashi

Koji Kameyama

Yasushi Ikeda

Takaaki Tadokoro

Masato Nomura

Naoyuki Sakamoto

Takashi Takeuchi

Takashi Okuno

Toshiyuki Nishimori

Koji Kishimoto

Keishi Yokota

Hiroyuki Aizawa

Kyusei Hasegawa

Shigemi Hayashi

Yoshihide Watanabe

Hirokazu Kawashimo

Hiroshi Ito

Kojiro Kameyama

The present invention is concerned with a reactive surfactant composition for emulsion polymerization, which is able to micronize the particle diameter of a polymer emulsion and to reduce the addition amount of the reactive surfactant composition to be used. The reactive surfactant composition for emulsion polymerization of the present invention contains a reactive anionic surfactant (component A) represented by the following formula (I): wherein AO represents an alkyleneoxy group having a carbon number of 3 or more and 18 or less; EO represents an ethyleneoxy group; p represents an integer of 1 or more and 15 or less; m' represents an integer of 0 or more; n&#x2032; represents an integer of 0 or more; Mrepresents a hydrogen ion or a cation; and plural kinds of AOs may coexist.

Reactive surfactant composition for emulsion polymerization

The present invention provides a surfactant composition for emulsion polymerization containing an alkyl ether sulfate represented by formula (1) and a method for producing a polymer emulsion including emulsion polymerization of a monomer in the presence of the surfactant composition for emulsion polymerization:RO&#x2014;(PO)(EO)SOM&#x2003;&#x2003;(1)

Surfactant composition for emulsion polymerization

The present invention relates to a process for producing a toner for electrophotography which includes the step of fusing aggregated particles containing resin particles (A) and releasing agent particles in an aqueous mixed solution containing the aggregated particles and an anionic surfactant having a polyalkylene glycol moiety with an average molar number of addition of an alkylene oxide having 2 to 3 carbon atoms of from 5 to 100 after and/or while adjusting a pH value of the aqueous mixed solution to 2.0 to 6.0 as measured at 25&#xb0; C., and a toner for electrophotography obtained by the process.

Process for producing toner for electrophotography

The invention provides a surfactant for emulsion polymerization represented by the formula (I), (II) or (VI). The invention also provides a method of producing a polymer emulsion using this surfactant. wherein A represents an alkylene group having 3 to 18 carbon atoms or an alkoxymethylethylene group (alkoxy group has 4 to 18 carbon atoms), EO represents an oxyethylene group, a denotes a number of 0 to 50, b denotes a number of 0 to 200 wherein a and b are not 0 at the same time and M represents a cation; wherein A'O represents an oxyalkylene group having 3 to 18 carbon atoms, E&#x2032;O represents an oxyethylene group, m denotes a number of 0 to 50 and n denotes a number of 5 to 200, provided that the -(A&#x2032;O)&#x2014; groups m in number [-(A&#x2032;O)m-] may be the same as or different from one another.

Surfactant for emulsion polymerization

According to the present invention, a bulky sheet can be obtained without reducing the effect of a sizing agent. Thus, an ester compound having the melting point of not more than 100&deg; C. selected from (A) an ester compound of a polyhydric alcohol and a fatty acid and (B) an ester compound of a polyhydric alcohol and a fatty acid further including from more than 0 mole to less than 12 moles on the average of C oxyalkylene groups per 1 mole of the said ester compound is used as a paper bulking promoter.

Paper bulking promoter

Preparation of an asphalt composition using an asphalt modifier composition comprising at least one member selected from the group consisting of rubber-base modifiers and resin-base modifiers and a phosphorus compound permits the modifier to be satisfactorily dissolved in asphalt. Further, when paving is conducted by using a composition for paving prepared with such the asphalt composition, the adhesion of asphalt to an aggregate is high, and the resultant pavement has markedly improved in rutting resistance and wearing resistance. Therefore, such the pavement has a prolonged service life.

Asphalt modifier composition and asphalt composition

A residual fuel oil is improved in dispersion stability when a large amount of sludge is contained therein and comprises (1) a thermal cracking oil, (2) a diluent and (3) a dispersant selected from the group consisting of (A) an imidazoline derivative containing a hydrocarbon group having 7 to 23 carbon atoms, (B) a hydrolysis product of (A), (C) a reaction product of an aliphatic acid having 8 to 22 carbon atoms and a polyalkylenepolyamine having 4 to 6 amino groups, (D) a monoamine containing a hydrocarbon group having 8 to 22 carbon atoms, (E) a polyamine containing a hydrocarbon group having 8 to 22 carbon atoms, (F) an etheramine having a long chain hydrocarbon group, (G) a phosphate having a long chain hydrocarbon group, (H) a salt of (G), (I) a dithiophosphate and (J) a salt of (I).

Stabilized fuel oil containing a dispersant

A stable micelle solution composition for recovering crude oil, which can form a homogeneous micro emulsion against brines in a wide range of salt concentrations. In a micelle solution composition comprising a hydrocarbon, brine, and a surface active agent, the above stated stable micelle solution composition can be obtained by specifying the surface active agent to be a mixture of (a) an ethylene oxide and propylene oxide block polymer, (b) an alkylbenzenesulfonate, (c) a polyoxyethylene alkyl ether sulfate or polyoxyethylene alkylphenol ether sulfate, and (d) a polyoxyethylene nonionic surface active agent other than the agent specified in (a).

Micelle solution compositions for recovering crude oil

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Wakayama, Japan

Takayuki Ikenaga