Kabushiki Kaisha Toyota Chuo Kenkyusho

Toyota Jidosha Kabushiki Kaisha

Toray Industries, Inc.

Takuya Morishita

Mitsumasa Matsushita

Kenzo Fukumori

Yoshihide Katagiri

Kazuhiro Nomura

Kenichi Hayashida

Mamiko Narita

Nozomu Shigemitsu

Makoto Kato

Takashi Ohta

Makiko Saito

Hiromitsu Tanaka

Makoto Mouri

Koji Nakanishi

Joji Yoshimura

Yasuhiro Ueno

Akiyoshi Tamai

Takashi Nagase

Akiko Tanaka

Naoki Yoshida

Hideyasu Kawai

Megumi Sasaki

Hisayoshi Chiba

Minoru Takahara

Yoshihiro Kikuzawa

Takanori Tatematsu

Akira Kunitomo

A carbon fiber wherein an average fiber diameter of a single fiber is in a range of 3 to 10 μm, and an average value of an intensity ratio (D/G) of a D peak to a G peak in a Raman spectrum in a cross section perpendicular to a fiber axis direction of the single fiber is 0.90 or less in a region inside a circle having a diameter of 1 μm and centered at a center of gravity of the cross section of the single fiber, and is 0.90 or less in a region up to 1 μm inside from an outer periphery of the cross section of the single fiber, wherein the D peak is observed at around 1360 cmand derived from a defect in a graphite structure and the G peak is observed at around 1590 cmand derived from the graphite structure.

Carbon fiber and method for producing the same

A method of producing a stabilized fiber, including performing a heat treatment on an acrylamide polymer fiber under an oxidizing atmosphere in a stabilization treatment temperature range of 200&#xb0; C. to 500&#xb0; C. while applying a tension of 0.07 mN/tex to 15 mN/tex.

Stabilized fiber, method of producing the same, and method of producing carbon fiber

A carbon material precursor comprises an acrylamide-based polymer having a weight-average molecular weight of 10,000 to 2,000,000 and a polydispersity of the molecular weight (weight-average molecular weight/number-average molecular weight) of 5.0 or less.

Carbon material precursor, carbon material precursor composition containing the same, and method for producing carbon material using these

A carbon material precursor includes an acrylamide/vinyl cyanide-based copolymer which contains 50 to 99.9 mol % of acrylamide-based monomer unit and 0.1 to 50 mol % of vinyl cyanide-based monomer unit; a carbon material precursor composition includes the above-described carbon material precursor and at least one additional component selected from the group consisting of acids and salts thereof; and a method for producing a carbon material, includes subjecting the above-described carbon material precursor or the above-described carbon material precursor composition to thermal-stabilization treatment as necessary, followed by carbonization treatment.

Carbon material precursor, carbon material precursor composition containing the same, and method for producing carbon material using the same

An apparatus for thermally-stabilizing a carbon material precursor having a heating apparatus which thermally-stabilizes a carbon material precursor, a thermometer for measuring a temperature in the heating apparatus, a water vapor concentration meter for measuring a concentration of water vapor in the heating apparatus, and a batch type thermal-stabilization apparatus for feedback-controlling the temperature in the heating apparatus by using the concentration of water vapor as an index such that generation of water vapor in a thermal-stabilization reaction of the carbon material precursor is completed and generation of water vapor in a partial oxidation reaction of the carbon material precursor is suppressed in a temperature range between a temperature range where the generation of water vapor is accelerated in the thermal-stabilization reaction and a temperature range where the generation of water vapor is accelerated in the partial oxidation reaction.

Apparatus for thermally-stabilizing carbon material precursor and method for thermally-stabilizing carbon material precursor using the same

A carbon material precursor comprises an acrylamide-based polymer and at least one addition component selected from the group consisting of acids and salts thereof; and a method for producing a carbon material comprises thermally-stabilizing the carbon material precursor and then carbonizing the carbon material precursor.

Carbon material precursor and method for producing carbon material using the same

A nanocomposite comprises a nanostructure, and a copolymer adsorbed to the nanostructure and containing at least one ionic monomer unit and a different monomer unit from the ionic monomer unit; the ionic monomer unit selected from the group consisting of a zwitterionic monomer unit and a cationic monomer unit which are represented by the following formula (1): (in the formula (1), R, R, and Reach independently represent any one of a hydrogen atom and a monovalent organic group having 1 to 20 carbon atoms, Yrepresents any one of a carbonyl group and an arylene group, Yrepresents any one of &#x2014;O&#x2014; and &#x2014;NH&#x2014;, n is 0 or 1, Rrepresents a divalent organic group having 1 to 20 carbon atoms, and X represents any one of a zwitterionic group and a cationic group).

Nanocomposite and dispersion comprising the same

A resin composition comprises a carbon-based nanofiller (A), a modified polyolefin-based polymer (B), and two or more resins (C) other than the modified polyolefin-based polymer (B), the resin composition comprising a dispersed phase formed from a resin (C) which has a highest affinity for the carbon-based nanofiller (A) among the two or more resins (C), and a continuous phase formed from the remaining one or more resins (C1), wherein at least part of the modified polyolefin-based polymer (B) is present at an interface between the dispersed phase and the continuous phase, and the carbon-based nanofiller (A) is present in the dispersed phase.

Resin composition

A resin composition includes 0.1 to 40% by mass of a carbon-based nanofiller, 5 to 90% by mass of a resin, and 5 to 90% by mass of calcium fluoride.

Resin composition and electrically insulating part obtained from the same

The present invention is a thermoplastic resin composition which is obtained by adding a specific modified vinyl copolymer having a specific intrinsic viscosity to a composition comprising a styrene-based resin and a polyamide resin. The thermoplastic resin composition has excellent flowability and has a far better surface appearance than conventional ones while satisfactorily retaining rigidity, heat resistance, chemical resistance, and impact resistance at room and low temperatures.

Thermoplastic resin composition

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Nagoya, Japan

Takuya Morishita