Abstract: In a roller chain or rollerless bushing chain for transmission of power, hollow connecting pins are swaged to the plates of the outer links. Each pin has at least one oil conducting passage extending from its hollow interior to its exterior whereby lubricating oil can flow through the pin from the ends thereof and into the clearance between the pin and its surrounding bushing.

Abstract: A polyamic acid solution according to the present invention includes a polyamic acid, a solvent (C) in which the polyamic acid (PAA1) is dissolved, and a substance (M) that can release at least one metal selected from groups 1 and 2 of the periodic table as a metal ion, or a substance (m) that contains the substance (M). A polyimide composite according to the present invention is produced from the polyamic acid solution. The present invention provides a polyimide composite having a greatly improved glass transition temperature without impairing the intrinsic physical properties of the polyimide.

Abstract: An electrical and optical hybrid film having high resistance to bending. The electrical and optical hybrid film has an optical waveguide film and an electrical wiring film on the optical waveguide film. The electrical and optical hybrid film has, between its opposite ends, a separated section where the electrical wiring film and the optical waveguide film are not secured to each other. The optical waveguide film has, at the separated section, a slit extending in the longitudinal direction, and the slit penetrates the optical waveguide film.

Abstract: The present invention provides a vinyl fluoride copolymer comprising: about 40 to about 90 mole % of repeat units derived from vinyl fluoride; and about 10 to about 60 mole % of repeat units derived from monomer selected from the group consisting of (a) and (b) below and mixtures thereof, with the proviso that about 0.1 mole % to 50 mole % of repeat units in the copolymer are derived from monomer selected from (b): (a) monomer selected from the group consisting of, tetrafluoroethylene, trifluoroethylene, chlorotrifluoroethylene and mixtures thereof; and (b) vinyl monomer containing at least one functional group selected from the group consisting of hydroxyls, thiols, carbonyls, carboxylic acids, carboxylic esters, acid anhydrides, sulfonyls, sulfonic acids, sulfonic esters, phosphoric acids, phosphoric esters, boric acids, boric esters, epoxies, isocyanates, thiocyanates, amines, amides, nitriles and halogen selected from bromide and iodide.

Abstract: A method of exhaust gas denitration in which nitrogen oxides contained in a low-temperature exhaust gas are removed at a high NOx removal efficiency. A injection pipe (11) is disposed in a flue (10) for an exhaust gas (x) so that the pipe protrudes from the inner wall of the flue. A hydrocarbon compound (b) and a nitrogen compound (a) are supplied through the injection pipe (11) into the flue (10). The hydrocarbon compound (b) is burned to form a combustion region (s). In this combustion region (s), amine radicals are produced from the nitrogen compound (a). These amine radicals are mixed with nitrogen oxides contained in the exhaust gas (x) to reductively remove the nitrogen oxides.

Abstract: A process for producing a (poly)thiol compound for an optical material. The process involves reacting an organic (poly)halogen compound or a (poly)alcohol compound with thiourea to produce an isothiuronium salt and hydrolyzing the isothiuronium salt in the presence of ammonia water to thereby produce the (poly)thiol compound, wherein the thiourea has a calcium content of not more than 1.0 wt %.

Abstract: The present invention provides a process for producing an ?-olefin polymer comprising polymerizing or copolymerizing (a) C3 or higher a-olefin(s) in the presence of an olefin polymerization catalyst comprising solid titanium catalyst component (I) containing titanium, magnesium, halogen, and a compound with a specific structure having two or more ether linkages and organometallic catalyst component (II) with high catalytic activity. In this process, particularly even in (co)polymerizing (a) higher olefin(s), demineralization is unnecessary. A 4-methyl-1-pentene-based polymer obtained by polymerization using the catalyst of the present invention is excellent in tacticity, transparency, heat resistance, and releasability, and the polymer is particularly suitable for a release film.

Abstract: A fluid identification device of long life for identification of a target fluid. The device uses at least two liquid type detection parts each of which is equipped with both of a temperature detector and a heating element, selects electrical conduction to any one of the heating elements, and identifies the target fluid based on a fluid temperature detection signal of the temperature detector in the fluid detection part not including the heating element whose electrical conduction has been selected and an output of the fluid type detection circuit.

Abstract: A resin composition of the present invention contains 99 to 30 parts by weight of a cyclic olefin polymer (A); 1 to 70 parts by weight of a soft copolymer (B) obtained by polymerizing at least two kinds of monomers selected from the group consisting of olefins, dienes, and aromatic vinyl hydrocarbons and having a glass transition temperature of 0° C. or lower; and relative to 100 parts by weight of total amount of the cyclic olefin polymer (A) and the soft copolymer (B), 0.001 to 1 part by weight of a radical initiator (C), 0 to 1 part by weight of a polyfunctional compound (D) having two or more radically polymerizable functional groups in a molecule, and 0.5 to 10 parts by weight of a nonionic or anionic antistatic agent (E).

Abstract: A process for the production of polyolefin pellets by cuffing a raw material which contains a molten polyolefin resin and which is extruded from an extrusion orifice (121) of a die (12) into predetermined lengths with an underwater cutter (14) which is set in close vicinity to the die face of the die (12) and which rotates in water, satisfying the following requirements (A) to (C): (A) the average linear velocity (u) of the raw material passing through the extrusion orifice (121) as defined by the equation (Eq-1) is 50 to 650 mm/sec, (B) the fictitious aspect ratio (r) a L as defined by the equation (Eq-2) is 1.6 or below, and (C) the r/u value is 0.002 or above wherein Q is extrusion rate (mm3/sec) of the raw material per extrusion orifice; R is radius (mm) of the extrusion orifice; and t is cutting time (sec) defined as an inverse number of the product of the number of revolution of the under-water cutter and the number of blades of the cutter.

Abstract: A polymerizable composition including a compound represented by following General Formula (1): (in Formula (1), M represents a metal atom; X1 and X2 each independently represents a sulfur atom or an oxygen atom; R1 represents a divalent organic group; m represents an integer of 0 or 1 or greater; p represents an integer of 1 to n; n represents a valence of a metal atom M; and Y's each independently represents an inorganic or organic residue, where when n-p is 2 or greater, Y's may be bonded to each other to form a ring containing a metal atom M), and a thiol compound.

Abstract: A negative electrode 10 for a nonaqueous secondary battery, has an active material layer 2 containing active material particles 2a. The active material layer 2 has a metallic material 4 deposited among the particles by electroplating. The negative electrode 10 has a large number of holes 5 open on at least one side thereof and extending through the thickness of the active material layer. The negative electrode 10 further has a pair of current collecting layers 3a and 3b adapted to be brought into contact with an electrolyte. The active material layer 2 is between the current collecting layers 3a and 3b. The holes 5 open on the negative electrode 10 preferably have an opening area ratio of 0.3% to 30%. At least one of the pair of the current collecting layers 3a and 3b preferably has a thickness of 0.3 to 10 ?m.

Abstract: A water treatment system to be installed in a tanker or other cargo ship for destruction of aquatic organisms and microorganisms that may be contained in the water, usually seawater, being pumped into the ship's ballast tank or tanks. Included is a ballast pump having an intake conduit for drawing water from the sea, and a delivery conduit for delivering the water under pressure to the ballast tank. The delivery conduit has mounted therein a slitted or otherwise open-worked screen for mechanically killing the aquatic lifeforms contained in the water by shearing action. For chemical treatment, on the other hand, part of the water being delivered by the ballast pump is bypassed into an ozone impregnator thereby to be impregnated with ozone from an ozonizer. A bypass pump repressurizes the ozone-impregnated water for returning the same into the delivery conduit.

Abstract: A process for producing pentaerythritol mercaptocarboxylic ester by reacting pentaerythritol with a mercaptocarboxylic acid having a content of thioester formed by condensation of two molecules of the acid of 5% or below (in terms of area percentage) as determined by the high-performance liquid chromatography in the case of the total area of the mercaptocarboxylic acid and thioester formed by intermolecular condensation of the acid is taken as 100%.

Abstract: Disclosed is a polymerizable composition for o an optical material containing tolylene diisocyanate, hexamethylene diisocyanate, and one or more polythiol compounds selected from the group consisting of 4-mercaptomethyl-1,8-dimercapto-3,6-dithiaoctane,4,8-, 4,7- or 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, pentaerythritol tetrakismercaptoacetate, pentaerythritol tetrakismercaptopropionate, 2,5-bis(mercaptomethyl)-1,4-dithiane, bis(mercaptoethyl)sulfide, 1,1,3,3-tetrakis(mercaptomethylthio)propane, 4,6-bis(mercaptomethylthio)-1,3-dithiane and 2-(2,2-bis(mercaptomethylthio)ethyl)-1,3-dithietane.

Abstract: There is provided a continuous-fiber nonwoven fabric excellent in terms of bulkiness, flexibility, and shape stability. The continuous-fiber nonwoven fabric comprises eccentric hollow conjugated continuous fiber containing a part (A), a part containing a higher melting-point thermoplastic resin (A), and a part (B), a part containing a lower melting-point thermoplastic resin (B), the parts (A) and (B) having been bonded to each other in a side by side arrangement, wherein the difference in melting point between the higher melting-point thermoplastic resin (A) and the lower melting-point thermoplastic resin (B) is 5° C. or greater, the eccentric hollow conjugated continuous fiber has a part (A):part (B) proportion in the range of 5 to 30 weight %:95 to 70 weight %, the eccentric hollow conjugated continuous fiber has a cross-section in which the thickness (a) of the part (A) is smaller than the thickness (b) of the part (B), and the eccentric hollow conjugated continuous fiber has been crimped.

Abstract: Provided is a transition metal compound represented by the general formula [III]: wherein R23, R24, R25, R26, R27, and R28 are each independently selected from hydrogen, a hydrocarbon group, a silicon-containing group, a sulfur-containing group, an oxygen-containing group, a nitrogen-containing group, and a halogen-containing group, adjacent substituents of R23 to R28 are optionally bonded to each other to form a ring, M is a Group 4 transition metal, Y is carbon atom, Q is selected from halogen, a hydrocarbon group, an anionic ligand and a neutral ligand capable of coordinating with a lone electron pair, which is selected in the same combination or different combination, j is an integer of 1 to 4, and Z is a fluorenylidene group comprising a fluorene derivative formula [I] or formula [II]

Abstract: The present invention provides a ballast water treatment system including a reaction tank in which raw water and ozone are imported and made to react each other for a predetermined period of time to kill microorganisms existing in raw water, an ozone decomposer in which water containing residual ozone discharged from the reaction tank is imported and the residual ozone is decomposed, and a circulation pump installed between the reaction tank and ozone decomposer, forming a circulation system which removes the residual ozone by means of circulating the water containing the residual ozone between the reaction tank and ozone decomposer. Accordingly, this system dispenses with a deaeration tank which would require a wide space for installation, small cost and is able to be applied to existing ships easily.

Abstract: The present invention aims to provide a resin composition for toners which enables to obtain a toner having excellent low temperature fixability and high temperature offset resistance, and a toner. The resin composition for toners is obtained by reacting a mixture of a branched polyester (A) having a number average molecular weight of 2,000 to 7,000 and a hydroxyl value of 20 to 80, and a low molecular weight linear polyester (B) having a number average molecular weight of 2,000 to 5,000 and a hydroxyl number of 20 to 55, with an isocyanate compound containing two or more isocyanate groups in one molecule, which comprises a crosslinked structure of said branched polyester (A), a structure in which said branched polyester (A) and said low molecular weight linear polyester (B) are bonded by said isocyanate compound, and an unreacted portion of said low molecular weight linear polyester (B).

Abstract: A process for the pre-treatment of Mo/ZSM-5 and Mo/MCM-22 catalysts is provided, which process comprises heating the catalyst at 500° C. in the presence of propane. The treated catalyst, when used in the non-oxidative dehydrogenation of methane demonstrates improved benzene yield and catalyst stability as compared to catalysts pre-treated with He, methane or H2.