Abstract: The present invention is a polyolefin polymer containing vinyl groups at both ends thereof, and a composition and a molded product containing the polymer, wherein the polymer contains a constitutional unit derived from at least one selected from the group consisting of ethylene (a), an ?-olefin (b) having 3 to 20 carbon atoms, and a cyclic olefin (c), and (1) a ratio of terminal vinylation is 70% or more relative to all of both ends of molecular chains, and (2) an intrinsic viscosity [?] is in the range of 0.01 to 10 dl/g as measured in a decalin solution at 135° C. The polymer of the present invention may be molded by a LIM molding, an injection molding, a transfer molding, a compression molding, and the like, and is excellent in acid resistance, gas permeation resistance, hydrolysis resistance, and dynamic fatigue resistance. From the polymer, a thermoplastic resin composition and a crosslinkable resin composition, and a crosslinked composition having excellent mechanical characteristics are obtained.

Abstract: [Object] The object of the present invention is to develop a syndiotactic propylene based polymer composition, which has excellent calendering formability, which exhibits excellent abrasion resistance, scratch resistance, and the like and, in addition, which is suitable for a sheet for an artificial leather exhibiting improved smell, color migration, and the like. [Solution] The present invention relates to a syndiotactic propylene based polymer composition containing a syndiotactic propylene-a-olefin copolymer containing 50 percent by mole or more, and less than 90 percent by mole of repeating unit derived from propylene, a syndiotactic propylene polymer containing 90 to 100 percent by mole of repeating unit derived from propylene, ethylene-vinyl acetate copolymer, ethylene (co)polymer, and isotactic polypropylene, as well as a formed body and a laminated sheet.

Abstract: Copolymers when used as lubricating oil viscosity modifiers enable lubricating oils to show excellent low-temperature properties. Processes for producing the copolymers are disclosed. Lubricating oil viscosity modifiers and lubricating oil compositions contain the copolymers. A copolymer includes structural units derived from ethylene and structural units derived from a C3-20 ?-olefin and satisfies the following requirements (1) to (8): (1) the melting point (Tm) according to DSC is in the range of 0 to 60° C.; (2) the melting point (Tm) and the density D (g/cm3) satisfy the equation: Tm?1073×D?893; (3) Mw/Mn according to GPC is from 1.6 to 5.0; (4) the half-value width (?Thalf) of a melting peak measured by DSC is not more than 90° C.; (5) the half-value width (?Thalf) and the melting point (Tm) satisfy the equation: ?Thalf??0.71×Tm+101.4; (6) the heat of fusion (?H) as measured by DSC is not more than 60 J/g; (7) the crystallization temperature (Tc) measured by DSC is not more than 70° C.

Abstract: A viscosity modifier for lubricating oils or an additive composition for lubricating oils, which is excellent in oil-thickening properties and can provide lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures; and lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures.

Abstract: A copolymer containing a constituent unit derived from ethylene and a constituent unit derived from an ?-olefin having 3 to 20 carbon atoms and satisfying the following requirements (1) to (5): (1) the copolymer has a melting point (Tm) of ?20° C. to 100° C.; (2) the melting point (Tm) and the density D (g/cm3) satisfy the following expression Tm?1073×D?893 (1); (3) the copolymer has a molecular weight distribution (Mw/Mn) measured by GPC of 1.6 to 5.0; (4) the copolymer has a half-width (?Thalf) of a melting peak measured by DSC of 90° C. or less; and (5) the half-width (?Thalf) and the melting point (Tm) satisfy the relationship shown by the following expression ?Thalf??0.71×Tm+101.4??(2).

Abstract: The present invention is a polyolefin polymer containing vinyl groups at both ends thereof, and a composition and a molded product containing the polymer, wherein the polymer contains a constitutional unit derived from at least one selected from the group consisting of ethylene (a), an ?-olefin (b) having 3 to 20 carbon atoms, and a cyclic olefin (c), and (1) a ratio of terminal vinylation is 70% or more relative to all of both ends of molecular chains, and (2) an intrinsic viscosity [?] is in the range of 0.01 to 10 dl/g as measured in a decalin solution at 135° C. The polymer of the present invention may be molded by a LIM molding, an injection molding, a transfer molding, a compression molding, and the like, and is excellent in acid resistance, gas permeation resistance, hydrolysis resistance, and dynamic fatigue resistance. From the polymer, a thermoplastic resin composition and a crosslinkable resin composition, and a crosslinked composition having excellent mechanical characteristics are obtained.

Abstract: A flicker improvement effect evaluating system evaluates an effect of improvement of voltage flicker in a power system to which a static reactive power compensator is to be introduced. A system voltage operating unit operates a compensation current and a system impedance of the power system, based on actually measured data of system voltage and load current read from a data reading unit. Based on the results of operations and the actually measured data, a not-yet-improved system voltage at present and an improved system voltage attained when the static reactive power compensator is provided on a bus are simulated. By a flicker meter, flicker values of the not-yet-improved system voltage and improved system voltage amplified by an amplifying circuit are measured, and from the flicker values, the rate of improvement attained by the static reactive power compensator is operated.

Abstract: The invention provides an internally illuminated sign comprising an information display section having at least one flat or curved surface which retroreflects light coming from the front of said sign and transmits light from the interior of said sign; an illuminator disposed behind the information display section; and a housing which encloses and holds said information display section and the illuminator. Those retroreflective elements used in said information display section are prismatic retroreflective elements according to the principle of total internal reflection, a large number of which are densely arranged to form a continuous retroreflective plane, at least the retroreflecting area of the back of said large number of prismatic retroreflective elements has no bonded area to other layer(s).

Abstract: Copolymers when used as lubricating oil viscosity modifiers enable lubricating oils to show excellent low-temperature properties. Processes for producing the copolymers are disclosed. Lubricating oil viscosity modifiers and lubricating oil compositions contain the copolymers. A copolymer includes structural units derived from ethylene and structural units derived from a C3-20 ?-olefin and satisfies the following requirements (1) to (8): (1) the melting point (Tm) according to DSC is in the range of 0 to 60° C.; (2) the melting point (Tm) and the density D (g/cm3) satisfy the equation: Tm?1073×D?893; (3) Mw/Mn according to GPC is from 1.6 to 5.0; (4) the half-value width (?Thalf) of a melting peak measured by DSC is not more than 90° C.; (5) the half-value width (?Thalf) and the melting point (Tm) satisfy the equation: ?Thalf??0.71×Tm+101.4; (6) the heat of fusion (?H) as measured by DSC is not more than 60 J/g; (7) the crystallization temperature (Tc) measured by DSC is not more than 70° C.

Abstract: A flicker improvement effect evaluating system evaluates an effect of improvement of voltage flicker in a power system to which a static reactive power compensator is to be introduced. A system voltage operating unit operates a compensation current and a system impedance of the power system, based on actually measured data of system voltage and load current read from a data reading unit. Based on the results of operations and the actually measured data, a not-yet-improved system voltage at present and an improved system voltage attained when the static reactive power compensator is provided on a bus are simulated. By a flicker meter, flicker values of the not-yet-improved system voltage and improved system voltage amplified by an amplifying circuit are measured, and from the flicker values, the rate of improvement attained by the static reactive power compensator is operated.

Abstract: A lubricating oil composition for a power transmission system, which is excellent in both of low-temperature viscosity property and shear stability, is provided. The viscosity modifier of a lubricating oil for a power transmission system according to the present invention comprises an ethylene/?-olefin copolymer (B) having the properties: (B1) an ethylene content in the range of 70 to 85% by mol, (B2) an intrinsic viscosity [?] in the range of 0.2 to 1.0 dl/g, (B3) Mw/Mn not more than 2.4, and (B4) a melting point, as measured by DSC, not higher than 60° C., or no melting point observed.

Abstract: A copolymer containing a constituent unit derived from ethylene and a constituent unit derived from an ?-olefin having 3 to 20 carbon atoms and satisfying the following requirements (1) to (5): (1) the copolymer has a melting point (Tm) of ?20° C. to 100° C.; (2) the melting point (Tm) and the density D (g/cm3) satisfy the following expression Tm?1073×D?893 (1); (3) the copolymer has a molecular weight distribution (Mw/Mn) measured by GPC of 1.6 to 5.0; (4) the copolymer has a half-width (?Thalf) of a melting peak measured by DSC of 90° C. or less; and (5) the half-width (?Thalf) and the melting point (Tm) satisfy the relationship shown by the following expression ?Thalf??0.71×Tm+101.4.

Abstract: In the aging process performed by applying a voltage having an alternating voltage component between a scan electrode and a sustain electrode, an erase discharge occurs in succession to an aging discharge. According to the aging method, an erase discharge-suppressing voltage is applied to at least any one of the scan electrode, the sustain electrode, and the data electrode. Although the erase discharge repeatedly occurs in the wake of the aging discharge, the erase discharge-suppressing voltage suppresses the ones that occur when the scan electrode has voltage level higher than the sustain electrode.

Abstract: In an aging process in which a voltage having an alternate voltage component is applied to at least between a scan electrode and a sustain electrode so as to form a discharge dent (sputter dent) on a protecting layer, the aging discharge dent is formed so as to satisfy any one of the following. First, the discharge dent on the scan electrode-side has a width which is narrower than the discharge dent on the side of sustain electrode. Second, the discharge dent on the side of sustain electrode is formed so that the depth of the discharge dent in the area away from a scan electrode paired with a sustain electrode as a display electrode is shallower than the depth of the discharge dent in the area close to counterpart scan electrode.

Abstract: A plasma display panel is provided that includes scan electrodes, sustain electrodes, and address electrodes. A first pulse voltage for the address electrodes or a second pulse voltage for the address electrodes is applied to the address electrodes in an aging step in which aging discharge is performed by alternately applying pulse voltage for the scan electrodes and pulse voltage for the sustain electrodes at least across the scan electrodes and the sustain electrodes. The first pulse voltage has a rising edge timing synchronized with a rising edge timing of the pulse voltage for the scan electrodes and a pulse width smaller than that of the pulse voltage for the scan electrodes. The second pulse voltage has a rising edge timing synchronized with a rising edge timing of the pulse voltage for the sustain electrodes and a pulse width smaller than that of the pulse voltage for the sustain electrodes.

Abstract: A viscosity modifier for lubricating oils or an additive composition for lubricating oils, which is excellent in oil-thickening properties and can provide lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures; and lubricating oil compositions excellent in low-temperature characteristics and handleability at low temperatures.

Abstract: In an aging process in which a voltage having an alternate voltage component is applied to at least between a scan electrode and a sustain electrode so as to form a discharge dent (sputter dent) on a protecting layer, the aging discharge dent is formed so as to satisfy any one of the following. First, the discharge dent on the scan electrode-side has a width which is narrower than the discharge dent on the side of sustain electrode. Second, the discharge dent on the side of sustain electrode is formed so that the depth of the discharge dent in the area away from a scan electrode paired with a sustain electrode as a display electrode is shallower than the depth of the discharge dent in the area close to counterpart scan electrode.

Abstract: Disclosed is a method of manufacturing plasma display panels for carrying out aging with high productivity. In an aging process for applying a predetermined voltage and driving plasma display panels 21 for display operation, each plasma display panel is set into an aging unit provided with cooling means, and the aging is carried out on the plasma display panel while cooling the plasma display panel by the cooling means provided in the aging unit. This method can thus reduce temperature rise of the panel and prevent the panel from being cracked during the aging process.

Abstract: In an aging process in which a voltage having an alternate voltage component is applied to at least between a scan electrode and a sustain electrode so as to form a discharge dent (sputter dent) on a protecting layer, the aging discharge dent is formed so as to satisfy any one of the following. First, the discharge dent on the scan electrode-side has a width which is narrower than the discharge dent on the side of sustain electrode. Second, the discharge dent on the side of sustain electrode is formed so that the depth of the discharge dent in the area away from a scan electrode paired with a sustain electrode as a display electrode is shallower than the depth of the discharge dent in the area close to counterpart scan electrode.

Abstract: The present invention provides a semiconductor device including a semiconductor element and a dummy semiconductor element adjacent to the semiconductor element. When the semiconductor element is a capacitor element including a bottom electrode, a top electrode and a dielectric layer between the electrodes, a dummy capacitor element also has dummy electrodes and a dummy dielectric layer between the dummy electrodes. The dummy electrode is located so that a space between the top electrode of the capacitor element ad the dummy top electrode is in a predetermined range (e.g. 0.3 ?m to 14 ?m). The dummy capacitor element prevents the capacitor dielectric layer from degrading since the collisions of the etching ions with the capacitor dielectric layer in a dry etching process is suppressed.