Abstract: A sizing agent for reinforcement fibers which imparts good bonding performance to a reinforcement fiber is used to reinforce thermoplastic matrix resin, and provide a synthetic fiber strand applied with the sizing agent and a fiber-reinforced composite reinforced with the synthetic fiber strand. The sizing agent essentially contains a neutralization product of a modified polypropylene resin and an amine compound having at least two hydroxyl groups or amino groups in the molecule, and the nonvolatile component of the sizing agent exhibits an endothermic heat of fusion not higher than 50 J/g in determination with a differential scanning calorimeter (DSC).

Abstract: An apparatus with: an extrusion head with a tip and a die concentrically arranged therewithin and extrudes a tube between the tip and the die; a needle that feeds at least one optical fiber and filler to be filled around the optical fiber into the tube being extrusion-molded; and a cylindrical bundling member provided within the needle. The bundling member has a bundling hole smaller than an inner diameter of the tube at a center thereof and into which the optical fiber can pass through, and a flow pass penetrating along a feeding direction of the filler between the bundling hole and an inner circumferential surface of the needle. In a method using the apparatus, the optical fiber is passed through a bundling hole to be bundled at a center of the tube. The filler is passed through a flow path to be filled around the optical fiber.

Abstract: An acrylic-fiber finish for carbon fiber production is prepared into a stable emulsion and applied to a carbon-fiber precursor to prevent gumming up of finish components in precursor production and carbon fiber fusing in baking process. The acrylic-fiber finish is used for carbon-fiber production and includes a modified silicone having a modifying group containing a nitrogen atom and an acidic phosphate ester represented by the following chemical formula (1). where R1 represents a C6-22 alkyl or alkenyl group, A represents a C2-4 alkylene group, and AO represents an oxyalkylene group, n represents a mole number of oxyalkylene group and is an integer ranging from 0 to 20, and each of a and b is an integer of 1 or 2 and meets the equation a+b=3.

Abstract: An optical fiber cable with an optical fiber, an FR-aramid yarn, and a jacket that can be used as a flame retardant compact drop cable for multiple dwelling units.

Abstract: A finish for acrylic fiber to be processed into carbon fiber includes an ester compound having at least three ester groups in its molecule and a silicone compound, wherein the silicone compound constitutes 10 to 50 weight percent of the whole of the nonvolatile matter of the finish. A method of manufacturing carbon fiber includes the processes of applying the finish for acrylic fiber to be processed into carbon fiber to acrylic fiber to be processed into carbon fiber; oxidative-stabilizing the finish-applied acrylic fiber in an oxidizing atmosphere at 200 to 300 deg. C. to convert the fiber into oxidized fiber; and carbonizing the oxidized fiber in an inert atmosphere at 200 to 3000 deg. C.

Abstract: A fiber optic cable comprises a plurality of elongated optical fiber units, each having an outer jacket containing multiple optical fibers. The optical fiber units are interconnected at intermittent bonding locations along an axial length of said trunk cable to form a sheathless bundle. The absence of a sheath makes the trunk cable thinner and lighter than typical trunk cable. In addition, each unit can serve as a horizontal cable at a selected branching location.

Abstract: A carbon fiber sizing agent imparts good bonding performance to carbon fiber, is used to reinforce a thermoplastic matrix resin, and provides a carbon fiber strand applied with the sizing agent and a fiber-reinforced composite reinforced with the carbon fiber strand. The sizing agent for carbon fiber is used to reinforce thermoplastic matrix resin. The sizing agent essentially contains a polymer component having a glass transition temperature of at least 20 deg.C. and exhibits no endothermic peaks indicating an endothermic heat of fusion due to crystalline melting of at least 3 J/g in a determination with a DSC. The weight ratio of the polymer component is 10 to 100 wt % of the nonvolatile components of the sizing agent. The polymer component is at least one component selected from the group consisting of an aromatic polyester resin, aromatic polyester-polyurethane resin and amine-modified aromatic epoxy resin.

Abstract: Provided is a sensing cable including a first protective member which encases a first component, a second protective member having a channel portion which encases a second component. The second protective member includes a crescent shape and the second component is disposed in the channel portion of the second protective member.

Abstract: A sensing cable is provided which includes exposed and/or unexposed optical fibers or wires disposed through the length of the sensing cable. The sensing cable includes a slotted core which is a one-piece integral member having a plurality of channels formed on a perimeter of the slotted core and which extend along a length of the slotted core. The sensing cable includes at least one exposed component which is disposed in a first channel of the plurality of channels and which extends along a length of the first channel. The sensing cable includes at least one unexposed component which is encased by a protective member, and the unexposed component and the protective member are disposed in a second channel of the plurality of channels. The unexposed component and the protective member extend along a length of the second channel.

Abstract: A fiber optic cable comprises at least one elongated optical fiber situated in a fiber nest having a plurality of filaments collectively surrounding the optical fiber. The cable further includes a structural member at least partially surrounding the optical fiber but spaced apart from the optical fiber in a radial direction such that at least some of the filaments of the fiber nest are positioned between the optical fiber and the structural member. The foregoing elements are encased in an outer jacket.

Abstract: An apparatus with: an extrusion head with a tip and a die concentrically arranged therewithin and extrudes a tube between the tip and the die; a needle that feeds at least one optical fiber and filler to be filled around the optical fiber into the tube being extrusion-molded; and a cylindrical bundling member provided within the needle. The bundling member has a bundling hole smaller than an inner diameter of the tube at a center thereof and into which the optical fiber can pass through, and a flow pass penetrating along a feeding direction of the filler between the bundling hole and an inner circumferential surface of the needle. In a method using the apparatus, the optical fiber is passed through a bundling hole to be bundled at a center of the tube. The filler is passed through a flow path to be filled around the optical fiber.

Abstract: A cable includes an armored layer comprising a plurality of annular wires and at least one of the plurality of annular wires is composed of a metallic tube and a strengthening member.

Abstract: An extrusion-molding apparatus for a loose tube includes: an extrusion head that includes a tip and a die concentrically arranged therewithin and extrudes a tube between the tip and the die; a needle that feeds at least one optical fiber and filler to be filled around the optical fiber into the tube being extrusion-molded; and a cylindrical bundling member provided within the needle. The bundling member has a bundling hole being smaller than an inner diameter of the tube at a center thereof and into which the optical fiber can pass through, and a flow pass penetrating along a feeding direction of the filler between the bundling hole and an inner circumferential surface of the needle. In an extrusion molding method using the extrusion-molding apparatus, the optical fiber is passed through a bundling hole to be bundled at an almost center of the tube. In addition, filler is passed through a flow path to be filled around the optical fiber.

Abstract: A sizing agent for reinforcement fibers which imparts good bonding performance to a reinforcement fiber is used to reinforce thermoplastic matrix resin, and provide a synthetic fiber strand applied with the sizing agent and a fiber-reinforced composite reinforced with the synthetic fiber strand. The sizing agent essentially contains a neutralization product of a modified polypropylene resin and an amine compound having at least two hydroxyl groups or amino groups in the molecule, and the nonvolatile component of the sizing agent exhibits an endothermic heat of fusion not higher than 50 J/g in determination with a differential scanning calorimeter (DSC).

Abstract: An acrylic-fiber finish for use in carbon-fiber production contributes to high tenacity of resultant carbon fiber. The acrylic-fiber finish for carbon-fiber production includes an epoxy-polyether-modified silicone and a surfactant. The weight ratios of the epoxy-polyether-modified silicone and the surfactant in the total of the non-volatile components of the finish respectively range from 1 to 95 wt % and from 5 to 50 wt %. The carbon fiber production method includes a fiber production process for producing an acrylic fiber for carbon-fiber production by applying the finish to an acrylic fiber which is a basic material for the acrylic fiber for carbon-fiber production; an oxidative stabilization process for converting the acrylic fiber produced in the fiber production process into oxidized fiber in an oxidative atmosphere at 200 to 300 deg.C.; and a carbonization process for carbonizing the oxidized fiber in an inert atmosphere at 300 to 2,000 deg.C.

Abstract: An optical fiber cable 1 includes: a cable core 9 formed by stranding a plurality of loose tubes 7, each housing at least one optical fiber 5, on the periphery of a centered tension member 3; and a sheath 11 disposed on the outer periphery of the cable core 9. The sheath 11 includes: a first sheath portion 13 in which the sheath is embedded in between each of the loose tubes 7; and a second sheath portion 15, in which the sheath 11 is circumscribed around the cable core 9, to be thereby formed in a pipe shape. The first sheath portion 13 and the second sheath portion 15 are alternately positioned over the entire length of the cable core 9.

Abstract: An acrylic-fiber finish for use in carbon-fiber production contributes to high tenacity of resultant carbon fiber. The acrylic-fiber finish for carbon-fiber production includes an epoxy-polyether-modified silicone and a surfactant. The weight ratios of the epoxy-polyether-modified silicone and the surfactant in the total of the non-volatile components of the finish respectively range from 1 to 95 wt % and from 5 to 50 wt %. The carbon fiber production method includes a fiber production process for producing an acrylic fiber for carbon-fiber production by applying the finish to an acrylic fiber which is a basic material for the acrylic fiber for carbon-fiber production; an oxidative stabilization process for converting the acrylic fiber produced in the fiber production process into oxidized fiber in an oxidative atmosphere at 200 to 300 deg.C.; and a carbonization process for carbonizing the oxidized fiber in an inert atmosphere at 300 to 2,000 deg.C.

Abstract: An extrusion-molding apparatus for a loose tube includes: an extrusion head that includes a tip and a die concentrically arranged therewithin and extrudes a tube between the tip and the die; a needle that feeds at least one optical fiber and filler to be filled around the optical fiber into the tube being extrusion-molded; and a cylindrical bundling member provided within the needle. The bundling member has a bundling hole being smaller than an inner diameter of the tube at a center thereof and into which the optical fiber can pass through, and a flow pass penetrating along a feeding direction of the filler between the bundling hole and an inner circumferential surface of the needle. In an extrusion molding method using the extrusion-molding apparatus, the optical fiber is passed through a bundling hole to be bundled at an almost center of the tube. In addition, filler is passed through a flow path to be filled around the optical fiber.

Abstract: An optical fiber cable 1 includes: a cable core 9 formed by stranding a plurality of loose tubes 7, each housing at least one optical fiber 5, on the periphery of a centered tension member 3; and a sheath 11 disposed on the outer periphery of the cable core 9. The sheath 11 includes: a first sheath portion 13 in which the sheath is embedded in between each of the loose tubes 7; and a second sheath portion 15, in which the sheath 11 is circumscribed around the cable core 9, to be thereby formed in a pipe shape. The first sheath portion 13 and the second sheath portion 15 are alternately positioned over the entire length of the cable core 9.

Abstract: A vehicle door includes a glass run which corresponds to an outer peripheral configuration of a door glass. The glass run includes a body portion which is provided with a bottom wall portion and an interior side wall portion and an exterior side wall portion which extend from both edges of the bottom wall portion, respectively, and a pair or seal lips which establish seals between the door glass and themselves. Furthermore, with respect to a direction towards an inside or outside of a door frame, a foot portion of the exterior seal lip is positioned further on the outer peripheral side than an inner-peripheral edge portion of a molding member.