Abstract: A propylene resin composition containing a propylene homopolymer that satisfies conditions (1) to (3) described below, and having a semicrystallization time (t1/2) of 60 seconds or more: (1) having a melting point (Tm-D) of 120° C. or lower; (2) having a molecular weight distribution (Mw/Mn) less than 3.0; (3) having a melt viscosity at 190° C. of 30,000 mPa·s or less.

Abstract: The present invention relates to a nonwoven fabric including a conjugated fiber containing 40% by mass or more and 80% by mass or less of a propylene homopolymer (A) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of higher than 120° C., 4% by mass or more and 40% by mass or less of a polypropylene-based resin (B) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of 120° C. or lower, and 10% by mass or more and 55% by mass or less of a polyethylene-based resin (C), wherein the nonwoven fabric has a texture uniformity of 2.1 or more and 3.0 or less and a bulkiness of 450 ?m or more.

Abstract: The method for producing a resin composition of the present invention includes a step of obtaining a lignin-containing solution that contains a solubilized lignin prepared through a treatment of separating lignin in a lignin-containing solution and a solvent, and a step of adding a resin to the lignin-containing solution to thereby obtain a lignin/resin-containing solution. Also, the method for producing a resin composition of the present invention includes a step of mixing the lignin/resin-containing solution with at least one solvent selected from water and a hydrocarbon having a dipole moment of 0.25 d or less. The lignin-containing resin molded article of the present invention uses the resin composition obtained according to the production method of the present invention.

Abstract: The method for producing a resin composition of the present invention includes a step of obtaining a lignin-containing solution that contains a solubilized lignin prepared through a treatment of separating lignin in a lignin-containing solution and a solvent, and a step of adding a resin to the lignin-containing solution to thereby obtain a lignin/resin-containing solution. Also, the method for producing a resin composition of the present invention includes a step of mixing the lignin/resin-containing solution with at least one solvent selected from water and a hydrocarbon having a dipole moment of 0.25 d or less. The lignin-containing resin molded article of the present invention uses the resin composition obtained according to the production method of the present invention.

Abstract: Provided is a method of producing a purified lignin, including: treating a plant biomass in a first solvent mixture formed of water and a first organic solvent under specific conditions; subjecting a solid fraction insoluble in a first solution mixture and the first solution mixture to solid-liquid separation after the treatment; mixing the first solution mixture from which the insoluble solid fraction has been separated, and a second organic solvent excluding the first organic solvent and having a dipole moment of 0.25 d or less to provide a second solution mixture; and subjecting a solid fraction insoluble in the second solution mixture to solid-liquid separation to extract the purified lignin in a liquid phase of the second solution mixture.

Abstract: An object of the present invention is to provide a roller bearing cage suited in particular to a supersized roller bearing, wherein the cage (1A) is configured such that a pair of ring parts (4 and 6) axially separated is connected by a plurality of column parts (5) sliding on an outer peripheral surfaces of rollers (RA), and a plurality of pocket holes (P) is evenly formed in a circumferential direction to store and hold the rollers (RA) at a peripheral wall portion, wherein a base body (2) including one ring part (4) and the column parts (5) with engagement convexes (5A) at leading ends thereof and a connection body (3) including the other ring part (6) with engagement concaves (6A) for engagement with the engagement convexes (5A) of the column parts (5) are set as separate members.

Abstract: A roller bearing cage (1A) is configured such that a pair of ring parts (4, 6) axially separated from each other is connected by column parts (5) sliding on outer peripheral surfaces of rollers (RA), and pocket holes (P) are evenly formed to store and hold the rollers (RA) in a peripheral wall portion in a circumferential direction. The cage (1A) is manufactured such that a base body (2) including the ring part (4) and the column parts (5) with square columnar convexes (5A) and a connection body (3) including the ring part (6) with square holes (6A) are set as separate members.

Abstract: Present invention relates to provide a cage suited in particular to a supersized roller bearing, which is easy to improve rigidity, realizes a reduction in manufacturing costs, facilitates dimension management and accuracy management, and is less prone to progress abrasion of end surfaces of rollers. A roller bearing cage (1A) is configured such that a pair of ring parts (4, 6) axially separated from each other is connected by column parts (5) sliding on outer peripheral surfaces of rollers (RA), and pocket holes (P) are evenly formed to store and hold the rollers (RA) in a peripheral wall portion in a circumferential direction. The cage (1A) is manufactured such that a base body (2) including the ring part (4) and the column parts (5) with square columnar convexes (5A) and a connection body (3) including the ring part (6) with square holes (6A) are set as separate members.

Abstract: An object of the present invention is to provide a roller bearing cage suited in particular to a supersized roller bearing, wherein the cage (1A) is configured such that a pair of ring parts (4 and 6) axially separated is connected by a plurality of column parts (5) sliding on an outer peripheral surfaces of rollers (RA), and a plurality of pocket holes (P) is evenly formed in a circumferential direction to store and hold the rollers (RA) at a peripheral wall portion, wherein a base body (2) including one ring part (4) and the column parts (5) with engagement convexes (5A) at leading ends thereof and a connection body (3) including the other ring part (6) with engagement concaves (6A) for engagement with the engagement convexes (5A) of the column parts (5) are set as separate members.

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: A method for producing an unsaturated dimer by reacting an ?-olefin having 6 to 14 carbon atoms in an agitated vessel, wherein a metallocene-based catalyst is used as a reaction catalyst; and the supply flow rate of hydrogen (VH) to the vessel is 0.2 to 1.2 [(NL/hr) per L of olefin] and the agitation power (Pv) is 0.18 KW/m3 or more of the time of reaction.

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: A method of producing an ?-olefin oligomer composition of the present invention is a method of producing an ?-olefin oligomer composition, the method including the step of causing the molecules of an ?-olefin to react with each other with a specific catalyst in the presence of hydrogen.

Abstract: De novo DNA cytosine methyltransferase polynucleotides and polypeptides and methods for producing said polypeptides are disclosed. Also disclosed are methods for utilizing de novo DNA cytosine methyltransferase polynucleotides and polypeptides in diagnostic assays, for an in vitro DNA methylation application and therapeutic applications such as the treatment of neoplastic disorders.

Abstract: De novo DNA cytosine methyltransferase polynucleotides and polypeptides and methods for producing said polypeptides are disclosed. Also disclosed are methods for utilizing de novo DNA cytosine methyltransferase polynucleotides and polypeptides in diagnostic assays, in vitro DNA methylation assays for screening agonists and antagonists, and therapeutic applications such as the treatment of neoplastic disorders.

Abstract: De novo DNA cytosine methyltransferase polynucleotides and polypeptides and methods for producing said polypeptides are disclosed. Also disclosed are methods for utilizing de novo DNA cytosine methyltransferase polynucleotides and polypeptides in diagnostic assays, for an in vitro DNA methylation application and therapeutic applications such as the treatment of neoplastic disorders.

Abstract: De novo DNA cytosine methyltransferase polynucleotides and polypeptides and methods for producing said polypeptides are disclosed. Also disclosed are methods for utilizing de novo DNA cytosine methyltransferase polynucleotides and polypeptides in diagnostic assays, for an in vitro DNA methylation application and therapeutic applications such as the treatment of neoplastic disorders.

Abstract: De novo DNA cytosine methyltransferase polynucleotides and polypeptides and methods for producing said polypeptides are disclosed. Also disclosed are methods for utilizing de novo DNA cytosine methyltransferase polynucleotides and polypeptides in diagnostic assays, in vitro DNA methylation assays for screening agonists and antagonists, and therapeutic applications such as the treatment of neoplastic disorders.