A retroreflective article (10) includes retroreflective elements (12) partially embedded in a binder layer (14) that comprises a polyurethane polymer. The polyurethane polymer is a reaction product of (i) a polyether polyol having a number average molecular weight of at least 2,000 and (ii) a polyisocyanate. A retroreflective article that employs a binder layer of this kind demonstrates extraordinary laundering durability under harsh wash conditions.

Retroreflective article containing a polyether polyurethane binder layer

PROBLEM TO BE SOLVED: To provide a resin composition which is excellent in substrate adhesion and exhibits very little adhesion reduction due to heat or humidity since a conventional urethane (meth)acrylate composition had a problem that a cured product thereof is easily separated from a substrate when it is exposed to a high-temperature and high-humidity condition SOLUTION: The active energy-ray curable resin composition comprises a compound (A) having one or more reactive functional groups selected from the group consisting of an epoxy group, an isocyanate group, a vinyl ether group, and a propenyl ether group, a urethane (meth)acrylate (B) except (A), a (meth)acryloyl group-containing monomer (C) except (A) which does not have a urethane bond, has a molecular weight of 100 or more, and a number average molecular weight of 1,000 or less, and a photopolymerization initiator (D) COPYRIGHT: (C)2009,JPO&INPIT

Active energy ray-curable resin composition

PROBLEM TO BE SOLVED: To provide a cured film with reduced curing shrinkage and curling, without reducing hardness, scratch resistance, etc., in coating a thin film on a plastic substrate. SOLUTION: The invention relates to the active energy ray-curable resin composition comprising a reaction product of an addition reaction of a copolymer of (meth)acrylate containing an epoxy group having 120-500 g/eq of epoxy equivalence, 5,000-100,000 of weight average molecular weight and 30°C of glass transition temperature with an α, β-unsaturated monocarboxylic acid. The invention provides the coating with reduced curling caused from curing shrinkage while preserving surface hardness and durability by the addition of the reactive polymer with 200-600 g/eq of the (meth)acrylic equivalence. COPYRIGHT: (C)2008,JPO&INPIT

Curl inhibitor, active energy ray-curable resin composition and film substrate

PROBLEM TO BE SOLVED: To provide an active energy ray-curable coating composition excellent in storage stability even in a one-part type coating composition in which the pot life is hardly restricted and capable of forming a coating film excellent in adhesion property with a base material and heat-resistance, and a heat-resistant brightness part. SOLUTION: The active energy ray curable coating composition is used for under-coating of a metal thin film, and includes a coating film-forming component, a photopolymerization initiator and a solvent. The coating film-forming component contains copolymer (A) obtained by copolymerizing a monomer mixture containing a styrene monomer, an alkylol (meth)acrylamide monomer and a (meth)acryloyl monomer and having a glass transition point of -60 to 20°C, and active energy ray-curable compound (B), and has an amine value of 15 to 200 mgKOH/g. The heat-resistant brightness part includes a coating film formed by the active energy ray-curable coating composition. COPYRIGHT: (C)2011,JPO&INPIT

Active energy ray-curable coating composition and heat-resistant brightness part

PROBLEM TO BE SOLVED: To provide a method for manufacturing a film insert molding which can make the film deflected to some extent and in a flat state. SOLUTION: The method for manufacturing the film insert molding includes a printing process S1 in which printing is applied to form an opening region in a prescribed region on one side of a transparent or translucent film to form a printing layer, a binder layer forming process S2 for forming a binder layer on the surface side of the printing layer, a forming process S4 for forming a film with the printing layer and the binder layer formed in a prescribed shape, a makeup extraction process S5 for forming an intermediate film article by applying extraction processing to the film after the forming process, and an insert molding process S6 in which the intermediate article is set in a concave mold after the makeup extraction process S5 the concave mold and the convex mold are combined after a frame member corresponding to an opening region is set in the convex part of a convex mold, and a molten resin is poured in a cavity to carry out insert molding. COPYRIGHT: (C)2010,JPO&INPIT

Film insert molding, method for manufacturing the same, and liquid crystal display device including the same

PURPOSE:To provide an adhesive capable of setting a screen plain gauze on a screen printing aluminum frame in good workability without degrading the workplace environment therefor, comprising an active energy ray-curing resin composition. CONSTITUTION:This adhesive comprises an active energy ray-curing resin composition comprising pref. (A) 50-90 pts.wt. of monofunctional and/or bifunctional reactive diluent having cyclic structure (e.g. morpholine acrylamide, bisphenol A ethylene oxide-modified diacrylate), (B) 0.1-10 pts.wt. of a (meth)acrylate having phosphoric ester structure (e.g. methacryloxyethyl phosphate, acryloxyethyl phosphate), and (C) 5-50 pts.wt. of an inert resin pref. >=500 in weight-average molecular weight (e.g. diallyl phthalate resin). The adhesive is used when a screen plain gauze is to be set on a screen printing aluminum frame during the plain gauze-setting process for screen printing preparation.

Adhesive for plain gauze setting in screen printing preparation and method for setting screen plain gauze in screen printing aluminum frame

PROBLEM TO BE SOLVED: To provide a surface protective sheet having no crack at the molding curved part at the time of adhering to the molding surface by making it possible to obtain the low-cost molding having excellent wear resistance and chemical resistance SOLUTION: This surface protective sheet 5 comprises a protective layer 2 provided at least on one surface of a base sheet 1, and an adhesive layer 4 provided at least on the opposite surface, wherein the layer 2 is formed of a thermal crosslinking reaction product of an active energy beam curable resin composition containing a polymer having (meth)acryl equivalent of 100 to 300g/eq, hydroxyl value of 20 to 500, and weight-average molecular weight of 5,000 to 50,000 and a multifunctional isocyanate as effective components

Surface protective sheet

PURPOSE:To keep the visibility of road signs high in rainy days and at night for long periods. CONSTITUTION:In a road sign formed by coating the surface of road with a melt-or solvent-type paint, an active energy-rays hardened resin varnish film as a top coat layer is provided for the road sign. After coating the pavement with the melt- or solvent-type paint, the active energy-hardening type resin varnish containing glass beads is applied to the paint film, and an active energy rays are irradiated to the resin varnish film to harden it. The road sign having excellent wear resistance and excellent visibility can thus be kept for long periods.

Road sign and its formation

PURPOSE:To obtain an undercoating material for vacuum deposition, excellent in adhesion to various kinds of substrates, especially to a polypropylene resin which has been used to be unsuitable for a metallized molding up to today and an excellent metallized molding produced by using the same undercoating material. CONSTITUTION:There are provided active energy rays curing undercoating material for vacuum deposition and a metallized molding composed of a substrate, the above-mentioned undercoating material for vacuum deposition and a metallized layer. This undercoating material for vacuum deposition is composed of (A) 20 to 70wt.% copolymer synthesized by copolymerizing 5 to 50wt.% one or more kinds of monomers selected from an amino(meth)acrylate and amino(meth)acrylamide, 50 to 95wt.% styrene-related monomer and 0 to 45wt.% alpha,beta-unsaturated monomer copolymerizable therewith and having 5000 to 50000 weight-average molecular weight, (B) 30 to 80wt.% reactive diluent, (C) 0 to 10wt.% additive and (D) 0 to 20wt.% photopolymerization initiator.

Undercoating material for vacuum deposition and metallized molding

PURPOSE:To obtain a composition curable by the irradiation with ultraviolet ray, electron ray, etc., and having excellent adhesiveness to polyester resin by compounding a specific copolymer, a reactive diluent, an additive and a photopolymerization initiator at specific ratios. CONSTITUTION:The composition is produced by compounding (A) 5-60wt.% of a copolymer having a weight-average molecular weight of 5,000-50,000 (preferably 10,000-20,000) and produced by copolymerizing (i) 35-90wt.% of amino(meth) acrylate or amino(meth)acrylamide, (ii) 10-70wt.% of a styrene compound and (iii) 0-60wt.% of an alpha,beta-unsaturated monomer copolymerizable with the components (i) and (ii) with (B) 40-95wt.% of a reactive diluent containing <=80wt.% of pentaerythritol polyacrylate and/ or dipentaerythritol polyacrylate, (C) 0-10wt.% of additives such as slip agent and leveling agent and (D) 0-20wt.% of a photopolymerization initiator.

Katayama Shinichi

Papers

Adhesive for plain gauze setting in screen printing preparation and method for setting screen plain gauze in screen printing aluminum frame

Surface protective sheet

Road sign and its formation

Undercoating material for vacuum deposition and metallized molding

Resin composition curable by actinic energy ray