Canon Kabushiki Kaisha

Canon Medical Systems Corporation

Keiichiro Tsubaki

Sakae Suda

Masayuki Ikegami

Koichi Sato

Ikuo Nakazawa

Ryuji Higashi

Keiko Yamagishi

Yasuaki Murai

Naoya Isono

Kazumichi Nakahama

Ryo Natori

Masao Suzuki

Akira Kuriyama

Kohei Watanabe

Takaho Shibata

Takeshi Okada

Fumio Yamauchi

Tomoko Maruyama

Kengo Kanazaki

Taku Shimoda

Takayuki Hiratani

The present disclosure provides a particle showing a small non-specific adsorption, having a reactive functional group for chemically bonding a ligand thereto, and being suitable for an agglutination method; a particle for the agglutination method having a ligand chemically bonded to the particle; a reagent, a kit and a method for detecting a target substance, each for in vitro diagnosis, each of which contains the particle. The particle includes a polymer having a unit having a linker A in a side chain, wherein when both terminals of the linker A are represented by X1 and X2, the linker A has a reactive functional group for chemically bonding a ligand thereto in one of X1 and X2; one of X1 and X2 includes an ester structure; and a sum of bonds between atoms linearly connecting X1 and X2 is 18 to 24 and the X1 and X2 contain CHor CH.

Particle, particle for agglutination method, and reagent, kit and detection method containing the same

The toner has a toner particle that contains a binder resin, wherein the binder resin contains a styrene-acrylic resin that has a structure derived from a crosslinking agent, the binder resin includes tetrahydrofuran-insoluble matter in an amount of from 5 mass % to 60 mass % of the binder resin, and the crosslinking agent contains a polymeric compound provided by an addition reaction at least between a particular multifunctional (meth)acrylate compound and a particular polyvalent mercapto compound.

Toner and method for producing toner

The toner contains a toner particle that has a binder resin, wherein an amount of a tetrahydrofuran THF-insoluble matter A collected when a THF dispersion of the binder resin is passed through a first filter having an average pore diameter of 8 &#x3bc;m, is not more than 10 mass % of the binder resin, and an amount of a THF-insoluble matter B collected when the THF dispersion that has been passed through the first filter is passed through a second filter having an average pore diameter of 0.8 &#x3bc;m, is from 5 mass % to 50 mass % of the binder resin.

Toner having a toner particle with a binder resin containing a copolymer of a styrenic polymerizable monomer, and at least one of an acrylic or methacrylic polymerizable monomer

Provided is a toner having a toner particle that contains a binder resin and a wax, wherein the solubility parameter Sof the binder resin is at least 9.4 and not more than 10.0; the binder resin contains a resin having a structure represented by the following formula (1) in the terminal position on a main chain of the resin,*&#x2014;CO&#x2014;R&#x2003;&#x2003;formula (1)(in formula (1), R represents a phenyl group or a derivative thereof, or &#x2014;COOR, Rrepresents an alkyl group having 1 to 4 carbons, and * represents a bond to the main chain of the resin); the solubility parameter Sof the wax is at least 8.1 and not more than 9.0; and Sand Ssatisfy formula (2),||&#x3e;0.5&#x2003;&#x2003;formula (2).

Toner and method of producing toner

A method for producing a resin composition, comprising the step of: subjecting a radical copolymerization of a first radical polymerizable monomer which is free from any crystalline molecular chain and a second radical polymerizable monomer having a crystalline molecular chain, in the presence of a radical polymerization initiator, (wherein Rdenotes a hydrogen atom or a methyl group, and Rdenotes an alkyl group having at least 17 carbon atoms) the first radical polymerizable monomer has a particular reactivity ratio.

Method for producing resin composition and resin composition

The invention provides an ink composition, which is improved in dispersibility and fastness properties and is excellent in dispersion stability and re-solubility owing to dispersed particles in which a coloring material is included by a crosslinked hydrophobic block segment in a dispersing polymer. The ink composition contains an amphiphilic block polymer compound, in which a coloring material is included, and a medium, wherein the amphiphilic block polymer compound, in which the coloring material is included, forms a dispersed particle having the hydrophobic block segment as an internal core part, and the hydrophobic block segment is crosslinked.

Polymeric compound containing composition, and image forming process and apparatus

A novel liquid composition set is provided for forming an image or pattern by functional substances such as a colorant without causing blurring. Each of the liquid compositions of the set includes a functional substance, an amphiphilic block copolyrner or graft copolymer having an organic acid group, and a liquid medium, wherein the organic acid groups of the copolymers are different in pKa, and the amphiphilic polymer contained in the first liquid composition becomes viscous by pH change on contact with the second liquid composition different in pH from the first liquid composition.

Liquid-composition set, and liquid-applying method and liquid-applying apparatus employing the set

A composition comprises a solvent, and an electroconductive substance and an amphiphilic block copolymers having a polyalkenyl ether repeating-unit structure, or a block copolymer enclosing an electroconductive substance. A black ink composition comprises a fine particulate metal having an average particle diameter of not more than 20 nm, an amphiphilic block copolymer, and a solvent. A method for forming an electroconductive pattern by applying the composition. A method for forming an electroconductive pattern by applying a composition comprises a block copolymer enclosing an electroconductive substance, system to form an electroconductive pattern on the substrate.

Image-forming method employing a composition

The invention provides a block polymer compound enabling satisfactory dispersion of a colorant in a solvent, and an ink composition containing such block polymer compound. The block polymer compound of the invention is a block polymer compound having at least three block segments, comprising block segments A, B and C arranged in succession, wherein the block segment C is most solvent attractive while the block segment A is most solvent repulsive, and at least either one of the block segments includes an ionic group or an acidic group.

Block polymer compound, polymer composition containing the same, image forming method and image forming apparatus utilizing the same

An amphiphilic block copolymer having an ionic functional group, wherein the ratio (N10/N5) of a rotational viscosity (N10) of a 10% by mass solution of the copolymer in purified water to a rotational viscosity (N5) of a 5% by mass solution of the copolymer in purified water is 2.5 or lower.

Amphiphilic block copolymer, polymer-containing composition containing the same, and method and apparatus for applying liquid using the polymer-containing composition

There is provided a polymer compound including a repetitive unit structure represented by the following general formula (2): General formula (2): (where X' represents a polyalkenyl group; A represents a linear or branched alkylene group having a carbon atom number of 1 to 15, which may be substituted; m represents an integer of 0 to 30; B represents a single bond or an alkylene group which may be substituted; D represents an aromatic ring structure which may be substituted; n represents an integer of 0 to 10; and R represents a hydrogen atom, an alkyl group which may be substituted, or an aromatic ring structure which may be substituted). The polymer compound is suitable for improving dispersibility of a coloring material or solid material in an ink composition or toner composition. 

Polymerizable compound, polymer compound, composition using the same, image-forming method, and image-forming apparatus

A block polymer compound containing block segments, characterized in that at least one hydrophilic segment among the block segments is a copolymer segment composed of an ionic or hydrophilic repeating unit structure and a hydrophobic repeating unit structure.

Block polymer compound, polymer-containing composition that contains the same

A polymer compound of a block polymer containing at least three block segments each having a repeating unit structure comprising a polyalkenyl ether structure comprises a repeating unit structure having a silyl ether side chain represented by the formula (1) in at least one block segment of the block polymer and a repeating unit structure containing one kind or two or more kinds of either a side chain having an ionic functional group represented by the formula (2) or an ester-type functional group obtained by esterifying the ionic functional group in at least one other block segment. 

Polymer compound, process for producing the same, polymer-containing composition, ink-applying process, and ink-applying apparatus

An image forming method which imparts two or more kinds of liquid compositions onto a recording medium to form an image thereon, the image forming method comprising the steps of: preparing plural liquid compositions including a first liquid composition containing a functional substance, an anionic amphiphilic polymer, and a liquid medium, and a second liquid composition containing a functional substance, a polyvalent cation, an anionic amphiphilic polymer, and a liquid medium, at least one of the polymer in the first composition and the polymer in the second composition being a block polymer or a graft polymer, and imparting the first and second compositions onto the medium to bring the first and second compositions into contact with each other to cause at least one to thicken.

Image forming method, pattern forming method and liquid-applying apparatus which make use of liquid compositions

A block polymer comprised of a polyalkenyl ether main chain comprises a first block segment having hydrophobicity; a second block segment having an upper limit hydration temperature exceeding 70&#xb0; C.; and a third block segment having an ionic property. A polymer-containing composition comprises the block polymer, a solvent or a dispersing medium, and a functional substance. An ink composition comprises the polymer-containing composition wherein the functional substance is colorant. A liquid application method comprises the steps of preparing the polymer-containing composition; and applying the polymer-containing composition to a medium. A liquid application apparatus comprises a liquid application means which makes energy act on the polymer-containing composition to apply the composition; and a drive means which drives the liquid application means. The polymer compound is capable of satisfactorily dispersing a functional substance in a solvent.

Block polymer, polymer-containing composition containing the same, ink composition and liquid applying method and liquid applying apparatus utilizing the polymer-containing composition

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Kawasaki, Japan

Keiichiro Tsubaki