Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Yasunobu Kashima

Takeshi Iwanaga

Hiroyoshi Okuno

Sakae Takeuchi

Hideaki Yoshikawa

Hidekazu Hirose

Kosaku Yoshimura

Yuka Zenitani

Hajime Sugahara

Takahiro Ishizuka

Tomoya Sasaki

Shunsuke Nozaki

Yasuo Kadokura

Kosuke Nakada

Satoshi Inoue

Sumiaki Yamasaki

Yoshifumi Iida

Toshiaki Hasegawa

Kiyohiro Yamanaka

Junichi Tomonaga

Hitomi Akiyama

Chika Hama

Wataru Yamada

Atsushi Sugitate

Masaaki Usami

Tomoyo Okubo

Susumu Yoshino

Takashi Tanabe

Takeshi Tanabe

A method for producing a liquid dispersion of composite resin particles includes polymerizing a styrene compound and an extra vinyl monomer together to give a styrene resin; polymerizing a (meth)acrylate compound in the presence of the styrene resin to give intermediate resin particles A, which are resin particles containing the styrene resin and a (meth)acrylate resin; polymerizing a styrene compound and an extra vinyl monomer in the presence of intermediate resin particles A to give liquid dispersion B, which is a liquid dispersion containing intermediate resin particles B; and adding a polymerization initiator to liquid dispersion B to give a liquid dispersion containing composite resin particles. In the composite resin particles as a whole, the ratio by mass between the styrene and (meth)acrylate resins is between 80:20 and 20:80. There is a difference of 30° C. or more between the lowest and highest glass transition temperatures of the composite resin particles.

Method for producing liquid dispersion of composite resin particles, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for developing electrostatic charge image, and liquid dispersion of composite resin particles

A polyimide precursor solution includes a polyimide precursor having a glass transition temperature Tg of equal to or higher than 300° C. after imidization, an aqueous solvent containing water, an organic amine compound, and resin particles having a volume average particle size of equal to or less than 100 nm.

Polyimide precursor solution, porous polyimide film, separator for secondary battery, and secondary battery

A method for producing a composite resin particle dispersion includes: performing polymerization A by polymerizing a styrene compound and a vinyl monomer other than the styrene compound to form a styrene-based resin; performing polymerization B by polymerizing a (meth)acrylic acid ester compound in the presence of the styrene-based resin to form intermediate resin particles containing the styrene-based resin and a (meth)acrylic acid ester-based resin; and performing polymerization C by polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the intermediate resin particles to form composite resin particles. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30° C. or more.

Method for producing composite resin particle dispersion, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for electrostatic charge image development, and composite resin particles

A particle-dispersed polyimide precursor solution contains a polyimide precursor having a unit represented by the following formula (I), particles, and a solvent, in which the particle-dispersed polyimide precursor solution satisfies both the following conditions (1) and (2),

Particle-dispersed polyimide precursor solution, method for producing porous polyimide film, and porous polyimide film

A method for producing a composite resin particle dispersion includes: performing polymerization A by polymerizing a styrene compound and a vinyl monomer other than the styrene compound to form a styrene-based resin; performing polymerization B by polymerizing a (meth)acrylic acid ester compound in the presence of the styrene-based resin to form intermediate resin particles containing the styrene-based resin and a (meth)acrylic acid ester-based resin; and performing polymerization C by polymerizing a styrene compound and a vinyl monomer other than the styrene compound in the presence of the intermediate resin particles to form composite resin particles. The mass ratio of the styrene-based resin to the (meth)acrylic acid ester-based resin in the composite resin particles is from 80:20 to 20:80. A difference between the lowest glass transition temperature and the highest glass transition temperature in the composite resin particles is 30&#xb0; C. or more.

A particle-dispersed polyimide precursor solution contains: a polyimide precursor consisting of a polymer of a tetracarboxylic dianhydride and a diamine containing a fluorene-based diamine having a fluorene skeleton; particles; and an aqueous solvent containing water.

A polyimide precursor-containing aqueous composition contains at least one polymer material selected from the group consisting of a water-insoluble fibrous organic substance and a polyalkylene oxide having a viscosity-average molecular weight of 5 million or more, a polyimide precursor, particles, and water.

Polyimide precursor-containing aqueous composition, method for producing polyimide film, and method for producing porous polyimide film

There is provided a porous polyimide film in which the pore distribution width A represented by the following formula is 1.15 or less, the average pore diameter is within a range of 0.50 &#x3bc;m to 3.0 &#x3bc;m, and the air permeation speed is 30 seconds or less:=()

Porous polyimide film, lithium ion secondary battery, and all-solid-state battery

A porous polyimide film has plural pores, in which an average flattening of the plural pores is within a range of 0.1 to 0.7, a coefficient of variation of a distance between adjacent pores is within a range of 0.10 to 0.40, and a front surface and aback surface communicate with each other through the plural pores.

Porous polyimide film, secondary battery separator, and secondary battery

An all-solid-state battery includes a positive electrode active material layer containing a positive electrode active material; a negative electrode active material layer containing a negative electrode active material; and a solid electrolyte layer containing a solid electrolyte and a porous polyimide film which holds the solid electrolyte. The porous polyimide film has a void ratio of 60% or more and 80% or less and a pore diameter of 0.1 &#x3bc;m or more and 10 &#x3bc;m or less.

All-solid-state battery

A porous polyimide film has an acid value within a range of 7 mgKOH/g to 20 mgKOH/g determined by acid-base titration, contains a metal group including alkali metals excluding Li, an alkaline earth metals, and silicon at a total content of 100 ppm or less relative to the porous polyimide film, and has a moisture absorption ratio of 0.5% or less.

Porous polyimide film and battery

A toner set includes a color toner and a transparent toner that has a pressure phase transition property. The color toner and the transparent toner satisfy 1.0&#x2264;tan &#x3b4;1&#x2264;4.0 and 1.2&#x2264;tan &#x3b4;1/tan &#x3b4;2&#x2264;3.0 where tan &#x3b4;1 represents tan &#x3b4; of the color toner at 100&#xb0; C., and tan &#x3b4;2 represents tan &#x3b4; of the transparent toner at 100&#xb0; C.

Toner set, toner cartridge set, and apparatus for forming printed material

Metatitanic acid particles have absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, have a surface to which a metal compound having a metal atom and a carbon atom is bonded through an oxygen atom, and satisfy the following inequality: 0.03&#x2264;A&#x2264;0.3, wherein A represents a value of {(peak intensity of C&#x2014;O bond+peak intensity of C&#x2550;O bond)/(peak intensity of C&#x2014;C bond+peak intensity of C&#x2550;C bond} in a C 1s XPS spectrum.

Metatitanic acid particles, method for producing metatitanic acid particles, and composition for forming photocatalyst

Provided is a silica titania composite aerogel particle including a base particle in which an element ratio Si/Ti of silicon to titanium is greater than 0 and equal to or lower than 6. A BET specific surface area of the silica titania composite particle is within a range of 200 m/g to 1200 m/g, and the silica titania composite particle has absorption at wavelengths of 450 nm and 750 nm.

Silica titania composite aerogel particle, photocatalyst forming composition, and photocatalyst

A silica-titania composite aerogel particle includes: a base particle including silicon and titanium whose element ratio Si/Ti is more than 0 and 6 or less; and a surface layer present on the base particle and including a metal compound having a metal atom and a hydrocarbon group. The silica-titania composite aerogel particle has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum, has a BET specific surface area in the range of 200 m/g to 1,200 m/g, and has a value A in the range of 0.03 to 0.3. The value A is calculated by formula: A=(peak intensity of C&#x2014;O bond+peak intensity of C&#x2550;O bond)/(peak intensity of C&#x2014;C bond+peak intensity of C&#x2550;C bond). The peak intensity is obtained from a C is XPS spectrum.

Growing community of inventors

Kanagawa, Japan

Yasunobu Kashima