A hard coat film excellent in abrasion resistance and saponification resistance. A hard coat layer includes a cured product of a curable resin composition containing a reactive inorganic fine particle having an average particle diameter of 5 nm to 30 nm, and has a skin layer, wherein the reactive inorganic fine particles are localized, in its surface region being an interface and its vicinity on a side opposite to a transparent substrate film side of the hard coat layer. Alternatively, the reactive inorganic fine particle has an average particle diameter of 30 nm to 100 nm, and has density distribution in a thickness direction of the hard coat layer lowest at an interface on a side opposite to a transparent substrate film side of the hard coat layer while the density is highest at an interface and its vicinity on the transparent substrate film side of the hard coat layer.

Hard coat film

The adhesive composition of the invention comprises a radical generator, a thermoplastic resin and a urethane(meth)acrylate having two or more radical-polymerizing groups in the molecule and a weight-average molecular weight of 3000-30,000

Adhesive composition, circuit connecting material, connection structure of circuit member, and semiconductor device

Water-based coatings having writable-erasable surfaces are provided. The coatings have many desirable attributes. For example, the coatings cure under ambient conditions, have low or no VOC emissions during and upon curing, and have reduced tendency to form ghost images, even after prolonged normal use.

Ambient cure solvent-based coatings for writable-erasable surfaces

The invention provides an optical fiber coated with a Supercoating, wherein the Supercoating comprises at least two layers, wherein the first layer is a Primary Coating that is in contact with the outer surface of the optical fiber and the second layer is a Secondary Coating in contact with the outer surface of the Primary Coating, wherein the cured Primary Coating on the optical fiber has the following properties after initial cure and after one month aging at 85°C and 85% relative humidity: A) a % RAU of from about 84% to about 99%; B) an in-situ modulus of between about 0.15 MPa and about 0.60 MPa; and C) a Tube Tg, of from about -25°C to about -55°C; wherein the cured Secondary Coating on the optical fiber has the following properties after initial cure and after one month aging at 85°C and 85% relative humidity: A) a % RAU of from about 80% to about 98%; B) an in-situ modulus of between about 0.60 GPa and about 1.90 GPa; and C) a Tube Tg, of from about 50°C to about 80°C.

D1381 supercoatings for optical fiber

The present invention provides an excellent radiation curable aqueous coating composition, which is highly safe and can make the adhesion to a metal surface and the corrosion resistance compatible which have been considered to conflict with each other, particularly adhesion after severe working and solvent resistance, and particularly durability to alcohols having high polarity. The composition of the present invention contains (1) a phosphoric acid ester compound having an ethylenically unsaturated double bond, (2) an aqueous polyurethane resin having both an ethylenically unsaturated double bond and a group capable of forming a salt, and (3) colloidal silica.

Water-based coating composition curable with actinic energy ray, coated metallic material, and process for producing the same

PROBLEM TO BE SOLVED: To obtain the subject composition excellent in the smoothness, surface smoothness, surface scratch resistance, stainproofness, chemical resistance, durability, appearance and water repellency of a coating film prefered therefrom, and to obtain a coating material excellent in the smoothness, surface smoothness, surface scratch resistance, stainproofness, chemical resistance, durability, appearance and water repellency of the coating film therefrom, and coatable on inorganic construction materials including calcium silicate boards, lightweight concrete boards, asbestos cement boards and mortar, woods, papers, plastic base materials, and the like. SOLUTION: This photocurable resin composition comprises (A) a urethane compound prepared by reaction between, as the essential components, (a) an isocyanate compound having at least two isocyanate groups in one molecule and (b) an unsaturated compound having in one molecule at least one photocurable unsaturated double bond and one hydroxyl group, (B) photopolymerizable monomer compound(s) having in one molecule at least one. photocurable unsaturated double bond and comprising, as the essential component, a photopolymerizable monomer compound having organopolysiloxane structure, and (C) a photopolymerization initiator. The coating material comprises the above photocurable resin composition.

Photocurable resin composition and coating material

PROBLEM TO BE SOLVED: To obtain a photo-setting resin composition and coating material excellent in smoothness and close adhesion of a coated film on applying the same to a plastic or a processed wood material, not having a tacky feeling at a surface of the coated film, and capable of obtaining a good degree of elongation and braking strength. SOLUTION: The photo-setting resin composition and coating material contains (A) a urethane compound having unsaturated groups at both terminals and obtained by reacting (a) an isocyanate compound having two isocyanate groups in a molecule, (b) a polyoxytetramethylene glycol compound having 300-1300 molecular weight, (c) a glycol compound as a polyoxyethylene polypropylenealkyl ether type having 500-2500 averaged molecular weight and expressed by the formula [(a), (c) are each >=1 integer; (b) is 15-25 integer; (a+c) is 15-25], (d) a glycol compound expressed by the formula: HO(C2 H4 O)e H [(e) is 1-3 integer] and (e) an unsaturated compound containing hydroxyl group, and (B) a photopolymerization initiator.

Photo-setting resin composition and coating material

PURPOSE:To obtain a photocurable resin compsn. which forms a coating film excellent in adhesive properties, elongation. tensile strength, and surface curability, can be produced from low-cost materials, and is best suitable for a photocurable coating material. CONSTITUTION:This compsn. is prepd. by compounding a urethane compd. having unsatd. groups at both molecular terminals, a photopolymerizable monomer, and a photopolymn. initiator. The urethane compd. compounded is obtd. by reacting an isocyanate compd. having at least two isocyanate groups in the molecule with a polyoxytetramethylene glycol compd. having a number average mol.wt. of 300-1,300, a glycol compd. represented by the formula: HO (CH2CH2O)nH (wherein n is 1, 2, or 3), and a hydroxylated unsatd. compd.

Photocurable resin composition for coating material and coating material

PURPOSE:To provide the subject composition containing a specific isocyanate- modified epoxy ester, an ultraviolet-curable monomer and a photo-polymerization initiator, having excellent curability and resistance to cold and hot cycle test, etc, and useful as a paint for spray-painting, etc CONSTITUTION:The objective composition is produced by reacting (A) an isocyanate-modified epoxy ester derived from (i) a (meth)acrylic acid ester of an aliphatic epoxy compound having >=2 epoxy groups in one molecule (preferably neopentyl glycol diglycidyl ether, etc) and (ii) a polyisocyanate having >=2 isocyanate groups at the terminal (preferably hexamethylene diisocyanate, etc) with (B) an ultraviolet-curable monomer containing the monomer of formula (R is H or CH3) as essential component and (C) a photo-polymerization initiator The preferable compounding ratios of the components A and B are 20-60wt% and 80-40wt%, respectively, and the amount of the component C is preferably 3-5 ptswt based on 100 ptswt of A+B

Hamada Keiji

Papers

Photocurable resin composition and coating material

Photo-setting resin composition and coating material

Photocurable resin composition for coating material and coating material

Ultraviolet curable resin composition and paint