Sekisui Chemical Co., Ltd.

Kabushiki Kaisha Sanko Kaihatsu Kagaku Kenkyusho

Sekisui Kagaku Kogyo Kabushiki Kaisha

Mitsui Chemicals, Inc.

Akihiro Niki

Toranosuke Saito

Kazuo Doyama

Daishiro Kishimoto

Hiroki Tsunomachi

Makoto Yamaguchi

Makoto Ohsuga

Toshio Uesaka

Akihiko Fujiwara

Kenichi Matsumura

Hirotake Matsumoto

Juichi Fukatani

Shoji Nozato

Yasuhiro Nakatani

Hideyuki Takahashi

Masayuki Imamura

Takashi Shinjo

It is an object of the present invention to provide a resin composition for a toner and a toner excellent in low temperature fixation property, high temperature offset resistance, blocking resistance, and excellent in coloration. The present invention relates to a resin composition for a toner, which contains a crystalline polymer having a melting point of 180 to 280&#xb0; C. and heat absorption of 25 to 150 mJ/mg at a melting point measured by a differential scanning calorimeter (DSC) and a non-crystalline polyester having a glass transition temperature of 30 to 80&#xb0; C.

Resin composition for toner, and toners

The present invention has for its object to provide a resin composition for toner exhibiting excellent low temperature fixation performance, high temperature offset-resistance and anti-blocking performance and enabling a satisfactory color development, as well as a toner thereof. A resin composition for toner which compromises a polymer component capable of forming a physical crosslinking structure and a polyester not forming a physical crosslinking structure but having a glass transition point of 30 to 80&#xb0; C. or a melting point of 50 to 120&#xb0; C.

Resin composition for toner and toner

The present invention presents a thermoplastic elastomer that exhibits superior moisture permeability, excellent flexibility and mechanical properties at a high temperature, particularly settling resistance at a high temperature, and excellent moisture permeability. The thermoplastic elastomer includes, as a constituting unit, a polyether component (A) and a polyester component (B), wherein the polyether component (A) includes poly-oxyalkylene groups (&#x2014;CHO&#x2014;) having a carbon/oxygen atomic ratio in a range from 2.0 to 2.5, the polyester component (B) has a number-average molecular weight in a range from 500 to 10,000, the thermoplastic elastomer has a content of polyether component (A) in a range from 50 to 95 weight %, and the thermoplastic elastomer has a glass transition temperature of not more than &#x2212;20&#xb0; C.

Thermoplastic elastomer, use thereof, and process for producing the same

Polyesterurethane elastomers and process for their production

An engineering plastic composition with excellent flowability, heat stability, and desirable mechanical properties is provided. The composition contains an engineering plastic material and an aliphatic polyester.

Engineering plastic composition and articles made of the same

A polyester is provided that comprises as main monomer components thereof a dicarboxylic acid and a diol, including a p-quaterphenyl derivative of specific formula. The use of appropriate kinds of dicarboxylic acid for the polyester makes it possible to obtain a thermoplastic elastomer or an engineering platic material (i.e., liquid-crystal polymer).

Polyester and an article made of the same

A polyester is provided that comprises as main monomer components thereof a dicarboxylic acid and a diol, including a p-quaterphenyl derivative of specific formula. The use of appropriate kinds of dicarboxylic acid for the polyester makes it possible to obtain a thermoplastic elastomer or an engineering plastic material (i.e., liquid-crystal polymer).

Polyester and an article made of the same comprising a p-quaterphenyl

An engineering plastic composition with excellent flowability, heat stability, and desirable mechanical properties is provided. The composition comprises an engineering plastic material and at least one p-quaterphenyl derivative of specific formula.

Engineering plastic composition and an article made of the same

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Takatsuki, Japan

Akihiro Niki