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Japan Science and Technology Corporation

Kazunori Waki

Kazuhiko Ishihara

Nobuo Nakabayashi

Daijiro Shiino

Koji Sato

Kazuo Matsuyama

Toshinobu Fujimura

Shiro Mibae

There are disclosed a phosphorus-containing carboxylic acid derivative which has a group containing phosphorus atom and has in its molecule, a group represented by the following formula (1): wherein R, Rand Rare each hydrogen atom or a hydrocarbon group having 1 to 18 carbon atoms, and Y is oxygen atom or sulfur atom; a process for producing the derivative; and a flame retardant comprising the foregoing derivative as an effective ingredient. The present invention can provide the phosphorus-containing carboxylic acid derivative and a flame retardant which are each excellent in solubility in an organic solvent, compatibility with a variety of resins, stability and flame retardancy.

Phosphorus-containing carboxylic acid derivatives process for preparations thereof and flame retardant

Solubilizers, emulsifiers and dispersing agents having the effects of moisturizing the skin when used as washing agents and having the character of elevating the concentration of a material to be solubilized, emulsified or dispersed in solvents including water as compared with the case where the material is employed alone, or elevating the apparent concentration of a material to be emulsified or dispersed in solvents by increasing homogeneity of the emulsion or dispersion which contain as the active ingredient polymers obtained by polymerizing monomer compositions containing at least one hydrophilic monomer (a) having a group represented by general formula (1) in the side chain, wherein R,, R,and R,represent each H or C1-4 alkyl.

Solubilizers, emulsifiers and dispersants

Polymer material, medical material and liquid high molecular composition

Growing community of inventors

Tsukuba, Japan

Kazunori Waki