Abstract: An electrostatic image developing toner that includes a toner particle including a binder resin containing a resin selected from an acrylic resin, a styrene-acrylic resin, and a styrene-(meth)acrylic acid ester copolymer. The resin has a crosslinked structure formed by using at least one of boric acid and boric acid derivatives.

Abstract: An electrostatic image developing carrier includes a core particle and a coating layer on the core particle. The coating layer contains a resin having a crosslinked structure formed by using at least one compound selected from boric acid and boric acid derivatives.

Abstract: The invention can provide a hydrophilic composition and a hydrophilic member having high hydrophilic property and excellent durability and high antifungal effect. The hydrophilic composition includes a hydrophilic polymer (I) that includes a specific structure and an additive having antibacterial or antifungal property in an amount exceeding 10 mass % with respect to the total solids content of the hydrophilic composition.

Abstract: A lithographic printing plate precursor comprising: a support; and at least one layer comprising an image-recording layer, the image-recording layer comprising (A) an infrared absorber, (B) a polymerization initiator, (C) a polymerizable compound, and (D) a binder polymer, wherein the image recording layer is capable of being removed with at least one of a printing ink and a fountain solution, wherein at least one of said at least one layer comprises a copolymer having (a1) a unit comprising at least one ethylenically unsaturated bond, and (a2) a unit comprising at least one functional group interacting with a surface of the support. And a lithographic printing method in which the lithographic printing plate precursor is used. The copolymer preferably has a hydrophilic segment. The copolymer preferably is contained in an undercoat layer formed between the support and the image-recording layer.

Abstract: A process for producing a hydrophilic member, includes: coating a surface of a base material with a hydrophilic composition containing at least (a) a catalyst, (b) a hydrophilic polymer and (c) a metal alkoxide; and drying the composition, wherein a temperature for the drying is from 10° C. to 60° C.

Abstract: A hydrophilic member endowed with sufficient hydrophilicity and excellent in the water resistance, antifouling property and scratch resistance can be provided, which is a hydrophilic member comprising a base material having provided thereon a hydrophilic film formed from a hydrophilic composition containing (A-1) a hydrophilic polymer having at least one hydrolyzable alkoxysilyl group on the polymer side chain and (B) a metal complex catalyst, wherein the water swelling degree of the hydrophilic film is 1.5 times or less.

Abstract: A lithographic printing plate precursor is provided and has a porous aluminum support, (1) a layer containing a water-soluble polymer resin having a hydrophilic substituent adsorbable to a surface of the porous aluminum support and a sulfonic acid, and (2) an image recording layer from which unexposed areas can be removed by supplying an oil-based ink and an aqueous component thereonto on a printing machine without being subjected to development after exposure. The layer containing the water-soluble polymer resin, which has come in contact with the oil-based ink and the aqueous component, has a sulfonic acid group left therein.

Abstract: To provide a hydrophilic coating composition excellent in hydrophilicity, wear resistance, transparency, storage stability, antifogging properties, antifouling properties, visible light transmittivity, adhesion properties, chemical resistance, weather resistance, and water resistance and a hydrophilic member using the composition. The hydrophilic coating composition has (A) a ternary copolymer having a1) a repeating unit having a hydrophilic group, a2) a repeating unit having a hydroxyl group, an epoxy group, an isocyanato group, a blocked isocyanato group, a carboxylic acid anhydride group, or an amino group, and a3) a repeating unit having a hydrolyzable silyl group; and (B) a metal complex catalyst, wherein a content of the repeating unit a1) having a hydrophilic group is 50 mol % or greater.

Abstract: To provide a lithographic printing plate precursor capable of obtaining a plenty of sheets of good printed matters with practical energy dosage, which is excellent in on-press developing property and press life, and capable of reducing pollution of fountain solution, and provide a lithographic printing method. The lithographic printing plate precursor comprises a support having provided thereon an image-recording layer, which lithographic printing plate precursor is mounted on a printing press and imagewise exposed, or mounted on the printing press after imagewise exposure, and then developed by feeding printing ink and/or a fountain solution, wherein at least a part of the unexposed part of the image-recording layer is not dissolved in the printing ink, the fountain solution or both of them, and removed by falling out of film, and the invention provides a lithographic printing method using the same.

Abstract: A hydrophilic film forming composition which is used for forming on the surface of a support of every sort a hydrophilic film provided with anti-fogging properties, abrasion resistance and antibacterial properties and having more favorable antifouling properties is provided. A hydrophilic member having an excellent anti-fogging, abrasion-resistant, antibacterial and antifouling surface provided with a hydrophilic film formed of the instant hydrophilic film forming composition on the surface of an appropriate support is provided. A hydrophilic film forming composition including (A) a positively charged nitrogen atom-containing compound having a Log P of not more than 2; (B) a hydrolyzable silyl group-containing hydrophilic polymer; and (C) a metal complex catalyst. A hydrophilic member including a support having the instant hydrophilic film forming composition coated thereon.

Abstract: A composition for forming a hydrophilic film, comprising (A) a hydrophilic polymer having a silane coupling group at the terminal or on the side chain of the polymer, the polymer having a specific structure, and (B) a metal complex catalyst; a spray composition; and a hydrophilic member provided with the composition by spray coating. A composition for the formation of a hydrophilic film, ensuring that a hydrophilic coating excellent in durability, antifouling property, water resistance and the like can be easily formed while keeping hydrophilicity and the coating workability is excellent, and a hydrophilic member using the composition are provided.

Abstract: A lithographic printing plate precursor comprising a hydrophilic support, an undercoat layer and a laser-sensitive photopolymerizable layer, wherein the undercoat layer contains a copolymer containing (a1) a repeating unit having at least one ethylenically unsaturated bond and (a2) a repeating unit having at least one functional group capable of interacting with a surface of the support, and the repeating unit (a1) is a repeating unit represented by the formula (A1) as defined herein.

Abstract: A polymer having a polymerizable group and an alkyleneoxy groups on side chains thereof, and a polymerizable composition containing the polymer. The polymerizable composition preferably contains a polymerizable compound and a polymerization initiator. Also provided is a planographic printing plate precursor having a polymerizable layer on a hydrophilic support, the polymerizable layer containing a polymer having a polymerizable on a side chain thereof. The planographic printing plate precursor can form an image without being subjected to an alkali development. An undercoat layer containing a specific copolymer may be provided between the support and the photopolymerizable layer.

Abstract: A polymer having a polymerizable group and an alkyleneoxy groups on side chains thereof, and a polymerizable composition containing the polymer. The polymerizable composition preferably contains a polymerizable compound and a polymerization initiator. Also provided is a planographic printing plate precursor having a polymerizable layer on a hydrophilic support, the polymerizable layer containing a polymer having a polymerizable on a side chain thereof. The planographic printing plate precursor can form an image without being subjected to an alkali development. An undercoat layer containing a specific copolymer may be provided between the support and the photopolymerizable layer.

Abstract: A method of producing a spirocyclic acetal compound of formula (II), having subjecting a compound of formula (I) and pentaerythritol to dehydration condensation, in the presence of a solid acid catalyst; and the polymer having a repeating unit represented by formula (III), which is produced using the spirocyclic acetal compound of formula (II): wherein R1 represents an alkyl, cycloalkyl or aryl group, Q represents a hydrogen atom or an acyl group, L represents a divalent linking group having at least one carbon atom, and n is 0 or 1.

Abstract: The invention provides a hydrophilic film obtained by curing, by at least one energy source selected from heat and light, a composition comprising a compound that has, in a molecule thereof, two or more ring structures selected from the group consisting of five-membered structures and six-membered structures, wherein the ring structures have a hydrophilic group. The invention further provides a planographic printing material having at least a substrate and the hydrophilic film formed on the substrate. The invention further provides a method for forming a planographic printing plate including at least forming an ink receiving portion on a planographic printing material by applying a hydrophobic material by an ink jet recording process.

Abstract: A lithographic printing plate precursor capable of forming an image without undergoing alkali development, which comprises a hydrophilic support and a laser-sensitive photopolymerizing layer, wherein the photopolymerizing layer contains a polymer compound having at least one of an ether group, an ester group and an amido group in its molecule, particularly, in its side chain.

Abstract: A process for producing a hydrophilic member, includes: coating a surface of a base material with a hydrophilic composition containing at least (a) a catalyst, (b) a hydrophilic polymer and (c) a metal alkoxide; and drying the composition, wherein a temperature for the drying is from 10° C. to 60° C.

Abstract: A hydrophilic film forming composition includes (A) a hydrophilic polymer having a silane coupling group at the terminal thereof; (B) an alkoxide compound of an element selected from Si, Ti, Zr and Al; and (C) a compound selected from a compound (C-1) and a compound (C-2), wherein the compound (C-1) has at least one silane coupling group and at least one acidic group or its salt in the molecule thereof, and the compound (C-2) has at least one functional group that reacts with a hydrolysate of a silane coupling group or with a hydrolytic condensate of a metal alkoxide and at least one acidic group or its salt in the molecule thereof.

Abstract: A polymer having a polymerizable group and an alkyleneoxy groups on side chains thereof, and a polymerizable composition containing the polymer. The polymerizable composition preferably contains a polymerizable compound and a polymerization initiator. Also provided is a planographic printing plate precursor having a polymerizable layer on a hydrophilic support, the polymerizable layer containing a polymer having a polymerizable on a side chain thereof. The planographic printing plate precursor can form an image without being subjected to an alkali development. An undercoat layer containing a specific copolymer may be provided between the support and the photopolymerizable layer.