Kao Corporation

Hisakazu Furugaki

Yasuyuki Fujii

Eiko Tamura

Katsumi Kita

Mitsuru Uno

Shinji Yano

Tomihiro Kurosaki

Yasushi Kajihara

Takeshi Ihara

Junya Wakatsuki

Yoko Hanada

Takayoshi Kajino

Tadashi Igarashi

Hiromasa Matsumoto

Hideharu Morimoto

Katsutoshi Kojima

Topical compositions

The superabsorbent resin composition of the present invention comprises (A) a superabsorbent resin and (B) a metal compound obtained by mixing a hydroxy acid or a salt thereof and a polyvalent metal salt or polyvalent metal alkoxide having at least one metal selected from the group consisting of titanium and zirconium. The method for producing a superabsorbent resin composition comprises mixing the components (A) and (B).

Superabsorbent resin composition and method for producing the same

A novel fluorine-containing compound having functions corresponding to those of fluorine is provided, which is stable under various conditions, excellent in compatibility with other solvents, and can be widely utilized as solvents, cosmetics, detergents, emulsifiers, surface finishing agents, lubricants, as well as lubricants or oils in the field of semiconductor/electronics. That is, the present invention provides fluorine-containing ether compounds represented by the general formula (1):

Fluorine-containing ether compound

Ether compound and process for producing the same

Fluorine-containing ether compound and gelling agent containing the same

Ether compounds, which are useful as solvents, cosmetics, detergents, lubricants, emulsifiers and so on, are produced by reacting (a) a hydroxy compound with a carbonyl compound of (b) a carbonyl compound under hydrogen atmosphere in the presence of a catalyst with ease and at a low cost. The reaction is carried out while removing out produced water by using a dehydrating agent during the reaction; by distilling off the water by azeotropic dehydration and the like; or by blowing gases such as hydrogen gas to flow through the reaction system.

Process for producing ether compound

A novel process for producing a phosphoric monoester which comprises reacting per 1 mole of a linear or branched, saturated or non-saturated aliphatic alcohol having from 8 to 36 carbon atoms, from 2 to 10 moles of a polyphosphoric acid at 100 to 116% concetration converted as orthophosphoric acid in (a) one or more solvents selected from the group consisting of linear or branched saturated aliphatic hydrocarbons having from 4 to 8 carbon atoms and saturated cycloaliphatic hydrocarbons having from 5 to 7 carbon atoms, then adding (b) a lower alcohol having from 1 to 4 carbon atoms and water to the reaction mixture, transferring the orthophosphoric acid to the lower alcohol-aqueous phase to separate it from the phosphoric monoester, and concentrating the thus recovered orthophosphoric acid for reuse. The process reaction proceeds smoothly, separation and purification can be carried out readily and very effectively and the recovered phosphoric acid can be re-used.

Process for purification of phosphoric mono esters

Growing community of inventors

Wakayama, Japan

Hisakazu Furugaki