Abstract: The present invention provides a sheet stacking device, a counter-ejector, and a carton former and is provided with: a hopper unit that stacks cardboard boxes; feed rollers that feed a cardboard box to the hopper unit; a first blower device that blows air from above the hopper unit toward the cardboard box fed by the feed rollers; and a second blower device that blows air between the cardboard box stacked in the hopper unit and the cardboard box fed by the feed roller.

Abstract: A plasticizer may be suitable for resins and contain an amorphous propylenic polymer having a weight-average molecular weight (Mw), measured according to a GPC method, in a range of from 5,000 to 30,000 and having a molecular weight distribution (Mw/Mn) of 3.0 or less.

Abstract: Provided is a method for producing an ?-olefin polymer, comprising the step of polymerizing one or more kinds of ?-olefins each having 3 to 30 carbon atoms with a polymerization catalyst obtained by using: (A) a metallocene compound; (B) an ionic compound capable of reacting with the metallocene compound to transform the compound into a cation; (C) an organometallic compound; and (D) one or more kinds of compounds selected from the group consisting of (d-1) an alcohol, (d-2) a phenol, and (d-3) an ether compound, the catalyst having a ratio between the component (A) and the component (D) of from 10:1 to 1:100 in terms of a molar ratio, and having a ratio of the component (D) to the component (C) of less than 1 in terms of a molar ratio.

Abstract: Provided is a method for producing an ?-olefin polymer, comprising the step of polymerizing one or more kinds of ?-olefins each having 3 to 30 carbon atoms with a polymerization catalyst obtained by using: (A) a metallocene compound; (B) an ionic compound capable of reacting with the metallocene compound to transform the compound into a cation; (C) an organometallic compound; and (D) one or more kinds of compounds selected from the group consisting of (d-1) an alcohol, (d-2) a phenol, and (d-3) an ether compound, the catalyst having a ratio between the component (A) and the component (D) of from 10:1 to 1:100 in terms of a molar ratio, and having a ratio of the component (D) to the component (C) of less than 1 in terms of a molar ratio.

Abstract: Provided is a method of producing an ?-olefin polymer including a step of polymerizing one or more kinds of ?-olefins each having 6 to 20 carbon atoms with a catalyst obtained by using a specific transition metal compound. By the method, an ?-olefin polymer having a viscosity suitable for use in a lubricating oil can be produced on an industrial scale with ease, and further, the characteristics of the product can be widely changed through the control of reaction conditions.

Abstract: Provided are an ?-olefin copolymer useful as a high-viscosity lubricant oil excellent in viscosity characteristics, low-temperature characteristics and oxidation stability, and a lubricant oil containing the copolymer. The ?-olefin copolymer is a 1-octene/1-decene copolymer produced by the use of a doubly bridged metallocene catalyst.

Abstract: Provided are an ?-olefin copolymer useful as a high-viscosity lubricant oil excellent in viscosity characteristics, low-temperature characteristics and oxidation stability, and a lubricant oil containing the copolymer. The ?-olefin copolymer is a 1-octene/1-decene/1-dodecene ternary copolymer produced by the use of a doubly crosslinked metallocene catalyst.

Abstract: Provided are an ?-olefin copolymer useful as a high-viscosity lubricant oil excellent in viscosity characteristics, low-temperature characteristics and oxidation stability, and a lubricant oil containing the copolymer. The ?-olefin copolymer is a 1-decene/1-dodecene copolymer produced by the use of a doubly bridged metallocene catalyst.

Abstract: Provided are an ?-olefin (co)polymer useful as high-viscosity lubricant oil excellent in viscosity characteristics and low-temperature characteristics, and a lubricant oil containing the (co)polymer. The ?-olefin (co)polymer is produced by the use of a metallocene catalyst and satisfies the following (a?) and (b?). (a?) The 2,1-insertion ratio at the polymer terminal, as measured through 1H-NMR, is at least 30 mol % of the entire molecule, and (b?) the mesotriad fraction (mm), as measured through 13C-NMR, is at most 50 mol %. Preferably, a 1-octene/1-dodecene copolymer is provided, as produced by the use of a metallocene catalyst and satisfying the following (a) to (c). (a) The molar ratio of the 1-octene unit to the 1-dodecene unit is from 20/80 to 80/20, (b) the mesotriad fraction (mm), as measured through 13C-NMR, is at most 50 mol %, and (c) the kinematic viscosity at 100° C. is from 30 to 1000 mm2/sec.

Abstract: Provided is a method of producing an ?-olefin polymer including a step of polymerizing one or more kinds of ?-olefins each having 6 to 20 carbon atoms with a catalyst obtained by using a specific transition metal compound. By the method, an ?-olefin polymer having a viscosity suitable for use in a lubricating oil can be produced on an industrial scale with ease, and further, the characteristics of the product can be widely changed through the control of reaction conditions.

Abstract: A magnesium compound obtainable by reacting metal magnesium, ethanol, an alcohol having from 3 to 10 carbon atoms and a halogen and/or a halogen-containing compound containing at least 0.0001 gram atom of a halogen atom relative to one gram atom of the metal magnesium at 0 to 70° C., which comprises composition represented by the formula (I), and which has a particle diameter D50 corresponding to 50% of cumulative weight fraction of from 4 to 20 ?m and a particle size distribution index (P) of P<4.0: Mg(OC2H5)2?n(OR1)n??(I) where n is a numerical value satisfying 0<n<0.35, R1 is CmH2m+1, and m is an integer of from 3 to 10.

Abstract: A magnesium compound represented by the formula (I): Mg(OC2H5)2?n(OR1)n??(I) where R1 is CmH2m+1 (where m is an integer of from 3 to 10), and n is a numerical value satisfying 0<n<0.35; a solid catalyst component for olefin polymer using the magnesium compound; a catalyst for olefin polymer; and methods of producing olefin copolymers such as a propylene-based random copolymer and propylene-based block copolymer by using the catalyst for olefin polymer.

Abstract: A magnesium compound obtainable by reacting metal magnesium, ethanol, an alcohol having from 3 to 10 carbon atoms and a halogen and/or a halogen-containing compound containing at least 0.0001 gram atom of a halogen atom relative to one gram atom of the metal magnesium at 0 to 70° C., which comprises composition represented by the formula (I), and which has a particle diameter D50 corresponding to 50% of cumulative weight fraction of from 4 to 20 ?m and a particle size distribution index (P) of P<4.0: Mg(OC2H5)2?n(OR1)n??(I) where n is a numerical value satisfying 0<n<0.35, R1 is CmH2m+1, and m is an integer of from 3 to 10.

Abstract: A magnesium compound represented by the formula (I): Mg(OC2H5)2?n(OR1)n ??(I) where R1 is CmH2m+1 (where m is an integer of from 3 to 10), and n is a numerical value satisfying 0<n<0.35; a solid catalyst component for olefin polymer using the magnesium compound; a catalyst for olefin polymer; and methods of producing olefin copolymers such as a propylene-based random copolymer and propylene-based block copolymer by using the catalyst for olefin polymer.

Abstract: A computer including a body case housing a display, an outer member formed of an impact-resistant material integrally formed on the outside surface of the body case, and an outwardly-projecting cushioning portion formed at each corner of the outside member. Each of the cushioning portions has a first protective portion extending outwardly from the body case, and a second protective portion projecting curvilinearly with respect to the first protective portion and extending onto a surface or a back side of the body case. The cushioning portions are formed of an elastic material. Further, vent holes are formed in the body case which are sealed with a porous film which is permeable to gas but not permeable to water. The vent holes provide an escape path for gas produced by a battery, such as a nickel-hydrogen battery, in the event that the battery explodes within the body case.

Abstract: A computer including a body case housing a display, an outer member formed of an impact-resistant material integrally formed on the outside surface of the body case, and an outwardly-projecting cushioning portion formed at each corner of the outside member. Each of the cushioning portions has a first protective portion extending outwardly from the body case, and a second protective portion projecting curvilinearly with respect to the first protective portion and extending onto a surface or a back side of the body case. The cushioning portions are formed of an elastic material. Further, vent holes are formed in the body case which are sealed with a porous film which is permeable to gas but not permeable to water. The vent holes provide an escape path for gas produced by a battery, such as a nickel-hydrogen battery, in the event that the battery explodes within the body case.

Abstract: The present invention relates to a flat display holding mechanism, which comprises a guide portion provided in the main body of an apparatus such as a computer and a word processor for rotatably supporting the flat display on the main body through a link and also for guiding, when the flat display is opened, the lower portion of the flat display toward the front of the main body, and a retaining mechanism provided at a portion which moves when the flat display is opened for retaining the flat display in any desired position. With such arrangement, a display portion with a larger screen can be positioned closer to the keyboard and the flat display can be retained in any desired tilted position so that an enhanced view of the screen can be obtained.