Fuji Xerox Co., Ltd.

Xerox Corporation

Fujifilm Business Innovation Corp.

Other

Toshio Mukai

Katsumi Nukada

Wataru Yamada

Katsumi Daimon

Akira Imai

Masahiro Iwasaki

Yuko Iwadate

Masakazu Iijima

Takatsugu Doi

Tomoya Sasaki

Yasuo Sakaguchi

Katsuhiro Sato

Yutaka Akasaki

Kenji Kajiwara

Tsuyoshi Miyamoto

Kiyokazu Mashimo

Hidekazu Hirose

Toru Ishii

Kazuhiro Koseki

Kenya Sonobe

Hidemi Nukada

Ryosaku Igarashi

Kana Miyazaki

Kazuya Hongo

Takahiro Suzuki

Kenji Yao

Hidekazu Aonuma

Hiroyuki Tanaka

Takayuki Yamashita

Teruumi Marumo

Takashi Imai

Akira Hirano

Fumio Ojima

Hitoshi Takimoto

Akihiko Tokida

Mieko Seki

Ichiro Takegawa

Koji Bando

Mitsuhide Nakamura

Naoya Yabuuchi

Sandra J Gardner

Hirofumi Nakamura

Yoshiro Yamashita

George Liebermann

Gordon K Hamer

Satoshi Shigezaki

Taketoshi Hoshizaki

Tomozumi Uesaka

Carol A Jennings

Richard A Burt

Kazuo Yamasaki

Rie Ishii

Takanori Suzuki

Yukiko Furushiro

Nan-Xing Hu

Takayuki Ito

Kenny-Tuan Dinh

Yoshinori Machida

Yasuhiro Oda

Takeshi Agata

Yasufumi Suwabe

Kiyoshi Shigehiro

Yoshiro Yamaguchi

Takeshi Matsunaga

Yasuhiro Yamaguchi

Motohiko Sakamaki

Tomoo Kobayashi

Giuseppa Baranyi

Kazuyuki Nakamura

Kazuhiko Yanagida

Masaaki Suwabe

Hiroshi Miyamoto

Masayuki Nishikawa

Hidekazu Yaguchi

Taketoshi Higashi

Michael E Zak

Noriyoshi Takahashi

Hiroe Okuyama

Kosaku Yoshimura

Hajime Sugahara

Kenta Ide

Hideyuki Akagi

Yoshinari Ueno

Kiyoshi Chatani

Susumu Honma

Ryo Sekiguchi

Tatsuki Sano

Eiji Funabashi

Michiaki Takahashi

Hidemi Suto

Akihiko Tokita

Kaori Iemura

Kyoko Nishikawa

Kiroyuki Tanaka

Masashige Watanabe

Katsumi Damion

Satsumi Daimon

Motoko Komatsu

Hidemi Sudo

Kaori Iemula

A polyimide precursor solution contains resin particles and a polyimide precursor. The resin particles in the polyimide precursor solution have a volume particle size distribution with one or more peaks. The volume frequency of a peak having the highest volume frequency of the one or more peaks accounts for 90% to 100% of the total volume frequency of all peaks of the volume particle size distribution.

Polyimide precursor solution and polyimide film

A polyimide laminated film includes a porous polyimide layer that has a porosity of from 30% to 90% and pores having a spherical shape and a non-porous polyimide layer that has a porosity of 5% or less.

Polyimide laminated film and method of preparing polyimide laminated film

A porous film includes at least one porous polyimide film that includes a polyimide resin, an organic amine compound and a resin other than a polyimide resin, and that does not include a polar aprotic solvent, wherein a content of the organic amine compound is 0.001% by weight or higher with respect to a total weight of the porous polyimide film.

Porous film and method of forming porous film

A polyimide precursor composition in which a resin and an organic amine compound are dispersed in an aqueous solvent, wherein the aqueous solvent contains 50% by weight or more of water and at least one organic solvent selected from a solvent group A consisting of a urea solvent, an amide solvent containing an alkoxy group, and an amide solvent containing an ester group in an amount of 5% by weight or more with respect to the total amount of the aqueous solvent, and the resin has a repeating unit represented by the following formula (I): wherein A indicates a tetravalent organic group, and B indicates a bivalent organic group.

Polyimide precursor composition, method of preparing polyimide precursor composition, and method of preparing polyimide molded article

A porous polyimide shaped article has a thickness in a range from 550 &#x3bc;m to 3,000 &#x3bc;m and has a relative dielectric constant of 1.8 or less and a dielectric loss tangent of 0.01 or less at 1 MHz. The porous polyimide shaped article satisfies the following formula:1.2&#x2264;&#x2264;1.6wherein A represents a square root of a ratio of a pore size Dwhere a cumulative percentage by number of pores from smaller sizes is 84% to a pore size Dwhere the cumulative percentage by number of the pores from smaller sizes is 16% ((D/D)) in a pore size distribution measured by mercury intrusion porosimetry.

Porous polyimide shaped article

There is provided a method for producing a porous polyimide film, including a first step of forming a coating film containing a polyimide precursor solution where a polyimide precursor and an organic amine compound are dissolved in an aqueous solvent, and a resin particle incapable of dissolving in the polyimide precursor solution, followed by drying of the coating film to form a coat containing the polyimide precursor and the resin particle, and a second step of heating the coat to imidize the polyimide precursor and form a polyimide film, the second step including a treatment for removing the resin particle.

Method for producing porous polyimide film, and porous polyimide film

Provided is a fluorine-containing resin particle dispersion including: fluorine-containing resin particles, a resin which is not dissolved in at least one solvent in a group of hydroxyl group-containing solvents including an alcohol-based solvent having 1 to 10 carbon atoms, containing no aromatic ring in the molecule structure, and a water-based medium, and which is adhered on the surface of the fluorine-containing resin particles, and at least one solvent, in which the resin is not dissolved, in the group of hydroxyl group-containing solvents, in which the fluorine-containing resin particles having the resin adhered on the surface thereof are dispersed.

Fluorine-containing resin particle dispersion, method for preparing fluorine-containing resin particle dispersion, coating liquid which contains fluorine-containing resin particles, method for preparing coating film which contains fluorine-containing resin particles, coating film which contains fluorine-containing resin particles, molded body, electrophotographic photoreceptor, method for preparing electrophotographic photoreceptor, image forming apparatus, and process cartridge

There is provided a polyimide precursor composition, wherein a resin having a repeating unit represented by the following general formula (I), an organic amine compound, and a surfactant are dissolved in a water-based solvent including water: 

Polyimide precursor composition, method for manufacturing polyimide molded body, and polyimide molded body

A polyimide precursor composition includes a polyimide precursor including a condensation polymer of a tetracarboxylic dianhydride composed of a first tetracarboxylic dianhydride having a benzene ring to which two carboxylic anhydride groups are bonded and a second tetracarboxylic dianhydride other than the first tetracarboxylic dianhydride, and a diamine compound; a tertiary amine compound; and a water-soluble solvent containing at least one kind selected from the group consisting of water and aqueous alcohol, wherein the polyimide precursor and the tertiary amine compound are dissolved in the water-soluble solvent.

Polyimide precursor composition, method for preparing polyimide precursor, polyimide molded article, and method for preparing polyimide molded article

An image forming method satisfies the following Expressions:0.01&#x3c;&#x3c;0.20&#x2003;&#x2003;Expression (A1):0.005&#x3c;&#x3c;5.000&#x2003;&#x2003;Expression (B1):0.002&#x3c;&#x3c;1.000&#x2003;&#x2003;Expression (B2):1.0&#x3c;max/min&#x3c;2.5&#x2003;&#x2003;Expression (C1):1.0&#x3c;max/min&#x3c;2.5&#x2003;&#x2003;Expression (C2):wherein, when a content of the fatty acid metal salt particles with respect to the entire weight of the toner is set as Rmf, an average abrasion rate of the electrophotographic photoreceptor is set as Wh, a maximum abrasion rate of the electrophotographic photoreceptor is set as Whmax, and a minimum abrasion rate of the electrophotographic photoreceptor is set as Whmin, and an average abrasion rate of the electrophotographic photoreceptor is set as Wl, a maximum abrasion rate of the electrophotographic photoreceptor is set as Wlmax, and a minimum abrasion rate of the electrophotographic photoreceptor is set as Wlmin.

Image forming method, image forming apparatus, and process cartridge

A polyimide precursor composition includes a polyimide precursor including a condensation polymer of a tetracarboxylic dianhydride containing a first tetracarboxylic dianhydride having a benzene ring to which two carboxylic anhydride groups are bonded, and a second tetracarboxylic dianhydride other than the first tetracarboxylic dianhydride, and a diamine compound; and a first aqueous solvent containing water and at least one water-soluble organic solvent selected from the group consisting of a water-soluble ether solvent, a water-soluble ketone solvent, and a water-soluble alcohol solvent, or a second aqueous solvent containing a water-soluble alcohol solvent and at least one water-soluble organic solvent selected from the group consisting of a water-soluble ether solvent and a water-soluble ketone solvent, wherein the polyimide precursor is dissolved in the first aqueous solvent or the second aqueous solvent.

An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an outermost surface layer of the electrophotographic photoreceptor is composed of a cured film of a composition containing a reactive charge transport material, a zinc stearate coverage of the surface of the outermost surface layer is 5.0% or more, and an oxygen permeability coefficient of the outermost surface layer before coating with zinc stearate is 2.0&#xd7;10fm/Pa&#xb7;s or more.

Electrophotographic photoreceptor, process cartridge, and image forming apparatus

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Kanagawa, Japan

Katsumi Nukada