Abstract: Provided are curable adhesives, along with adhesive tapes, laminates, and laminated mirror buttons that include the curable adhesive. The curable adhesive includes a (meth)acrylate polymer, a curable oxetane compound, a polymer filler, and a photoinitiator for curable oxetane compounds. The curable adhesive, when cured, can provide excellent interfacial failure resistance.

Abstract: A two-part adhesive that enables adhesion in a wide temperature range near room temperature and exhibits an excellent adhesion strength on a poorly-adhesive substrate including a silicone rubber or the like. In some embodiments, the two-part adhesive includes: a main agent including phenoxyethyl methacrylate and tetrahydrofurfuryl methacrylate; and an initiator including an organoborane; wherein the main agent includes the phenoxyethyl methacrylate at 60 to 95% by mass with reference to a mass of a polymerizable component.

Abstract: An adhesive that exhibits superior adhesive strength on adhesive-resistant materials such as olefin elastomer substrates when cured at a comparatively high temperature of 35° C., and that is hot water resistant. A two-pack adhesive comprising (A) a primary agent containing (1) isobornyl methacrylate and (2) at least one type of monocyclic methacrylate selected from a group including phenoxyethyl methacrylate, tetrahydrofurfuryl methacrylate, and cyclohexyl methacrylate, and (B) an initiator containing an organoborane, with the adhesive containing from 40 to 200 parts by mass of the monocyclic methacrylate per 100 parts by mass isobornyl methacrylate.

Abstract: A side lighting optical fiber 1 having a core 2 containing a first light scattering agent 4, and a clad disposed generally concentric to the core and containing a second light scattering agent 5, such that light transmittance of the clad 3 at wavelength of 550 nm is in the range of 70-90%.

Abstract: A side lighting optical fiber 1 having a core 2 containing a first light scattering agent 4, and a clad disposed generally concentric to the core and containing a second light scattering agent 5, such that light transmittance of the clad 3 at wave-length of 550 nm is in the range of 70-90%.

Abstract: A lateral emitting optical fiber has a core material including a light transmitting resin capable of transmitting light entering from one end to the other end, and a clad material covering the periphery of the core material and having a lower refractive index than the core material, wherein the clad material includes a light transmitting resin and zinc oxide particles dispersed in the light transmitting resin.

Abstract: A side light type optical fiber, includes a core and a cladding disposed around the core, the cladding including a transparent first layer contacting the core, and a light diffusive second layer formed around the first layer, the layers being integrally molded.

Abstract: A lighting apparatus includes at least two light-emitting elements, the light-emitting elements having at least two light-emitting zones which are disposed in a regular pattern throughout the entire length and allow light to be emitted in different light-emission intensities, each of the light-emitting elements allowing light to be emitted in continuous sequence from the light-emitting zones in one direction, wherein adjacent light-emitting elements are positioned with a predetermined distance deviation.

Abstract: A light fiber comprising (a) a tubular clad having a predetermined length and (b) a solid core formed by reacting a filler material with which the clad is filled, the clad and the core being closely contacted with each other by shrinkage of the clad, characterized in that: the clad is expandable under pressure, shrinkage of the clad is initiated before the completion of the reaction of the filler material and is carried out in conformity with volume reduction of the core, which accompanies the reaction of the filler material, and the number of air gap between the clad and the core, which is measured per length of 10 m, is 3 or less.

Abstract: A lighting apparatus includes at least two light-emitting elements, the light-emitting elements having at least two light-emitting zones which are disposed in a regular pattern throughout the entire length and allow light to be emitted in different light-emission intensities, each of the light-emitting elements allowing light to be emitted in continuous sequence from the light-emitting zones in one direction, wherein adjacent light-emitting elements are positioned with a predetermined distance deviation.

Abstract: An optical fiber comprising a core capable of transmitting light incident from one end in the lengthwise direction toward the other end, the core consisting of a polymer of a polymerizable stock material that contains a polymerizable hydroxy monomer with a hydroxyl group in the molecule, wherein the content of the polymerizable hydroxy monomer is 0.5 to 9 wt % with respect to the total of the polymerizable stock material, and the minimum dimension (R) in the direction orthogonal to the lengthwise direction of the core and the glass transition temperature (Tg) of the core have a relationship represented by the following Inequality 1:117/R+23<Tg<1050/R2+39 where the unit of R is mm, and the unit of Tg is ° C.

Abstract: A light-illuminating rod comprises a flexible rod member formed from a light piping plastic material and a light diffusible reflective film which is fixedly bonded to part of the outer periphery of the rod member along the longitudinal direction thereof. The light diffusible reflective film comprises a light-transmittable polymer and light diffusible reflective particles dispersed in the polymer. The light-transmittable polymer contains from 10 to 100% by weight of an adhesive polymer based on the total amount of the light-transmittable polymer. The light-transmittable polymer further contains from 2 to 90% by weight of a dispersible polymer having hydrophilic functional groups within the molecule based on the total amount of the light-transmittable polymer. In one embodiment, the light diffusible reflective particles contain from 10 to 100% by weight of an inorganic material based on the total amount of the light diffusible reflective particles.

Abstract: A light fiber of directional side light extraction type capable of keeping the sectional shape as desired, reducing the undesirable light leakage to the outside through the light diffusive and reflective portion and extracting a highly directional and a highly bright light, and a process for manufacturing the same. Said object can be attained by co-extruding a resinous material only, and a material obtained by light scattering fine particles with a resinous material to disperse them therein so as to form a light diffusive and reflective film in a desired portion at least on the inner periphery of the clad.

Abstract: To provide a side light extraction type light fiber capable of extracting light having high brightness at a viewing angle. Means for solving: a light fiber comprising: a core (1) in the center portion, and a cladding arranged around the core, characterized in that the cladding comprises: (i) a light diffusive layer (3) comprising a light diffusive portion made of a light diffusive material containing, as a binder, a polymer having a refractive index smaller than that of the core, which is provided in closely contact with the core in a wall thickness of 1 to 300 &mgr;m in a circumferential direction, and (ii) a protective layer (4) made of a light transmitting resin material, which is formed to integrate with the light diffusive layer and covers the light diffusive layer.

Abstract: An optical fiber comprising a core capable of transmitting light incident from one end in the lengthwise direction toward the other end, the core consisting of a polymer of a polymerizable stock material that contains a polymerizable hydroxy monomer with a hydroxyl group in the molecule, wherein the content of the polymerizable hydroxy monomer is 0.5 to 9 wt % with respect to the total of the polymerizable stock material, and the minimum dimension (R) in the direction orthogonal to the lengthwise direction of the core and the glass transition temperature (Tg) of the core have a relationship represented by the following Inequality 1:117/R+23<Tg<1050/R2+39 where the unit of R is mm, and the unit of Tg is ° C.

Abstract: A light fiber comprising (a) a tubular clad having a predetermined length and (b) a solid core formed by reacting a filler material with which the clad is filled, the clad and the core being closely contacted with each other by shrinkage of the clad, characterized in that: the clad is expandable under pressure, shrinkage of the clad is initiated before the completion of the reaction of the filler material and is carried out in conformity with volume reduction of the core, which accompanies the reaction of the filler material, and the number of air gap between the clad and the core, which is measured per length of 10 m, is 3 or less.

Abstract: A light illuminating rod has a light transmitting core and a cladding surrounding the core. In some locations there is a light diffusing material between the core and cladding. Furthermore, in some embodiments of the invention, the light transmitting core has light diffusing materials within it.

Abstract: The present invention relates to a light-illuminating rod, and an object of the present invention is to make it possible to handle the light-illuminating rod while the rod is being deflected or install it while it is being bent. A light-illuminating rod comprising (a) a flexible rod member and (b) a light diffusible reflective film which is fixedly bonded to part of the outer periphery of the rod member along the longitudinal direction thereof and which comprises (i) a light-transmittable polymer and (ii) light diffusible reflective particles dispersed in the polymer, the light-transmittable polymer of the light diffusible reflective film having a storage modulus of 1.0×104 to 1.0×108 dyne/cm2.

Abstract: There is disclosed a fire-retardant resin composition, comprising a polypropylene-series resin (a), a modified polyethylene modified with an unsaturated carboxylic acid or its derivative (b), a metal hydrate (c), and an ethylene-series copolymer (d), in a specific ratio; and an electric wire with a cover layer formed on the circumference of a conductor, in which the cover layer is composed of a composition prepared by blending (c) a metal hydrate with, in a specific ratio, a resin mixture, containing (a) a polypropylene-series resin, (b) a modified polyethylene, and (d) an ethylene-series copolymer.The fire-retardant resin composition is excellent in tensile strength, heat resistance, extrudability, and moldability. The covered electric wire is excellent in electric-wire properties and good in the end workability.

Abstract: A high recording density magnetic tape with a magnetic layer comprising magnetic particles, binder, curing agent and high molecular weight fatty acid, provided on a non-magnetic substrate, characterized in that the Ra value (center line average height) of the surface of the magnetic layer is 10 nm or less, and that the Z value defined by the following equation is 3.2 or more:Z=C1/(C2+C3),whereinC1 is the spectral integral intensity, measured by X-ray photoelectronic spectral analysis (ESCA), of a carbon atom, which is single-bonded between carbon-carbon atoms,C2 is the spectral integral intensity, measured by ESCA, of a carbon atom, which is single-bonded to a carbon atom and an atom with an electric negativity degree higher than that of a carbon atom, andC3 is the spectral integral intensity, measured by ESCA, of a carbon atom, which is double-bonded between carbon-oxygen atoms.