A coating composition contains: a fluororesin that imparts water repellency and includes a hydroxyl group; and a hydrophilic material that imparts hydrophilicity and includes a hydroxyl group. Moreover, the coating composition contains a bonding material that has a plurality of functional groups to be bonded to hydroxyl groups and bonds the fluororesin and the hydrophilic material to each other. An optical member 10 includes the coating film 2, which is obtained from the coating composition, on at least a part of a surface thereof. An illuminator 100 includes: a light-guiding plate 10A composed of the optical member; and a light source 20 that emits light to be made incident onto the light-guiding plate.

A developing roller having a rubber elastomer layer on the outer periphery of a shaft core metal, having a coating layer formed from a binder (A) and silicone rubber particles (B) on the surface of the rubber elastomer, and having an electrostatic capacitance of 4 to 20 nF; wherein the binder (A) is formed from a diluting solvent solution of a terminal hydroxyl group-containing prepolymer (a) obtained by reaction of an isocyanate compound, an isocyanurate modified product thereof and a reactive silicone oil, and an isocyanate compound and/or an isocyanurate modified product thereof (b). This developing roller suppresses banding by suppressing electrostatic capacitance even if the nip width between the developing roll and the photoreceptor changes due to distortion of peripheral members in the development apparatus, and stick slip (vibration) of gears.

An aqueous emulsion includes a prepolymer that is a reaction product of a multifunctional isocyanate and an acrylic resin having fluorine atoms and hydroxyl groups and having an acid value in a range of 5 mgKOH/g to 100 mgKOH/g; and an aqueous solvent.

Provided is a solution for forming a surface protective resin member, containing: a fluorine-containing acrylic resin having a hydroxyl value of 40 to 280; a fluorine-free acrylic resin having a hydroxyl value of 40 to 280; and a polyether polyol or a polyester polyol.

Disclosed is a solution set for forming a surface protective resin member, the solution set containing a first solution and a second solution. The first solution contains: an acrylic resin having a hydroxyl value of 40 to 280 and having a fluorine atom-containing group on a side chain of the acrylic resin; and a polyol having a plurality of hydroxyl groups bonded via a carbon chain having 6 or more carbon atoms. The second solution contains a multifunctional isocyanate. In the solution set, a content ratio of the fluorine atom to a total amount of a solid content in the first solution and a solid content in the second solution is 0.5 mass % to 15 mass %.

Provided is a solution for forming a surface protective resin member. The solution contains: an acrylic resin selected from: (i) an acrylic resin having a hydroxyl value of 40 to 280 and having a structure in which a silane coupling agent (a) having a functional group reactive with a hydroxyl group is bonded to a side chain; or (ii) an acrylic resin having a hydroxyl value of 40 to 280 and having a structure in which a silane coupling agent (b) having a vinyl group is polymerized as a monomer; and a polyol that has hydroxyl groups that are linked by a chain having 6 or more carbon atoms.

A coating material for producing a barrier layer on a plastic substrate includes an isocyanate-containing hardener component and a hydroxy-functional binder component. The hydroxy-functional binder component includes an aqueous polymer dispersion which includes a polyphenylene ether or a copolymer of fluorinated ethylene and a vinyl ether, glass hollow bodies, and at least one of an inorganic filler and an inorganic pigment.

The present invention provides a hybrid polyester-fluorocarbon powder coating composition which is a dry blend of a polyester powder coating composition A and a fluorocarbon powder coating composition B, wherein: polyester powder coating composition A comprises a first polyester polymer and a curing agent for the first polyester polymer; and fluorocarbon powder coating composition B comprises a fluorocarbon polymer, a curing agent for the fluorocarbon polymer, and a second polyester polymer and a curing agent for the second polyester polymer; wherein the weight ratio of polyester powder coating composition A and fluorocarbon powder coating composition B is in the range of from 25:75 to 75:25, wherein the first polyester polymer is a carboxyl functional polymer having an acid value in the range from 18 to 70 mg KOH/g polymer and wherein the second polyester polymer is a hydroxyl functional polyester polymer having a hydroxyl value in the range of from 70 to 350 mg KOH/g polymer. The invention further provides to a method for coating a substrate with such hybrid polyester-fluorocarbon powder coating composition.

A stain resistant, soft touch coating composition can include: (a) a fluoropolymer comprising at least one reactive functional group; (b) a polyester polyol; and (c) a crosslinker reactive with (a) and (b). The polyester polyol can include a reaction product obtained from a mixture of reactants including: an aliphatic diol; a polyol having 3 or more hydroxyl groups; and a cyclic polycarboxylic acid, or an anhydride or ester thereof.

Provided is a curable resin composition capable of forming a coating film excellent in the weather resistance and the impact resistance with a high productivity even on a member having a complicated shape for outdoor use. The curable resin composition contains a fluorinated copolymer (A) and a compound (B). The fluorinated copolymer (A) includes a fluorinated copolymer having a unit derived from a fluoroolefin, a unit having an ethylenic unsaturated group in its side chain, and a unit having a functional group, and the unit having a functional group is at least one member selected from a unit having a hydroxy group, a unit having a carboxy group and a unit having an alkoxysilyl group. The compound (B) includes at least one acryloyl group and/or methacryloyl groups and at least two isocyanate groups in one molecule.