Abstract: The present invention relates to cellulose nanofibers that have good dispersibility in water and can be contained in a water-soluble polymer at high concentration, and to a method for obtaining the cellulose nanofibers. The present invention further relates to a fiber reinforced composite material using the cellulose nanofibers. Cellulose nanofibers having an average degree of polymerization of 100 or more and 800 or less and an aspect ratio of 150 or more and 2000 or less are produced by subjecting unmodified cellulose to an enzyme and/or acid treatment, and to a mechanical shearing treatment. The cellulose nanofibers have good dispersibility and can be dispersed in a water-soluble polymer at high concentration, and therefore a fiber reinforced composite material having high strength can be obtained.

Abstract: In a glass chopped strand mat, a short chopped strand layer having first glass chopped strands with an average length of 25.4 to 76.2 mm and a long chopped strand layer having second glass chopped strands with an average length of 76.2 to 203.2 mm are laminated, a difference between the average length of the first glass chopped strands and that of the second glass chopped strands is 25.4 mm or greater, the short chopped strand layer occupies 50 to 70 parts by mass, and the long chopped strand layer occupies 30 to 50 parts by mass with respect to 100 parts by mass of the glass chopped strand mat, a mass per unit area of the glass chopped strand mat is 180 g/m2 or lower, and a loss on ignition of the glass chopped strand mat measured on the basis of JIS R 3420 is lower than 10%.

Abstract: Provided is a glass composition for glass fiber allowing spinning to be stably performed without mixing of red foreign substances into glass fibers. The glass composition for glass fiber includes, in relation to the total amount thereof, SiO2 in a content falling within a range from 57.0 to 60.0% by mass, Al2O3 in a content falling within a range from 17.5 to 20.0% by mass, MgO in a content falling within a range from 8.5 to 12.0% by mass, CaO in a content falling within a range from 10.0 to 13.0% by mass and B2O3 in a content falling within a range from 0.5 to 1.5% by mass, the total content of SiO2, Al2O3, MgO and CaO being 98.0% by mass or more.

Abstract: The purpose of the present invention is to provide a monoclonal antibody that is useful in specifically assaying tartrate resistant acid phosphatase 5b (TRACP-5b). A hybridoma producing a monoclonal antibody against TRACP-5b, said monoclonal antibody showing higher reactivity with TRACP-5b than with tartrate resistant acid phosphatase 5a (TRACP-5a) and, therefore, being specific to TRACP-5b, is obtained by cell fusion using, as an antigen, human recombinant TRACP-5b purified from silkworm silk gland. By using this monoclonal antibody, TRACP-5b in a specimen can be highly sensitively and specifically detected.

Abstract: In a glass chopped strand mat, a short chopped strand layer having first glass chopped strands with an average length of 25.4 to 76.2 mm and a long chopped strand layer having second glass chopped strands with an average length of 76.2 to 203.2 mm are laminated, a difference between the average length of the first glass chopped strands and that of the second glass chopped strands is 25.4 mm or greater, the short chopped strand layer occupies 50 to 70 parts by mass, and the long chopped strand layer occupies 30 to 50 parts by mass with respect to 100 parts by mass of the glass chopped strand mat, a mass per unit area of the glass chopped strand mat is 180 g/m2 or lower, and a loss on ignition of the glass chopped strand mat measured on the basis of JIS R 3420 is lower than 10%.

Abstract: Provided are: a graft copolymer which can be safely and stably produced with simple operation, while maintaining the characteristics of an amine, and which is lower in the introduction cost than conventional graft copolymers; and a method for producing the graft copolymer. A polyamine graft polymer that is obtained by polymerizing a polyamine derivative, which is obtained by reacting a polymer compound (a) having at least one amino group with a compound (b) having at least one epoxy group, with an ethylenically unsaturated monomer (c). A method for producing a polyamine graft polymer, which comprises a step for adding, for polymerization, an ethylenically unsaturated monomer (c) and a radical polymerization initiator to a polyamine derivative, which is obtained by reacting a polymer compound (a) having at least one amino group with a compound (b) having at least one epoxy group, in a polar solvent.

Abstract: An autoantibody against Ku86 can be measured by reacting the autoantibody contained in a sample with a Ku86 antigen (which serves as a reagent) to produce an immune complex of the autoantibody and the Ku86 antigen and measuring the immune complex using a labeled anti-human immunoglobulin antibody. The measurement of the autoantibody enables the determination of primary hepatocellular carcinoma.

Abstract: The purpose of the present invention is to provide a method for separating and concentrating a target substance as an alternative to existing cationic polymers, and a kit for implementing this method.

Abstract: There is provided a method of well filling copper in a conductivity-rendered non-through hole having an aspect ratio (depth/hole diameter) of 5 or more on a substrate in a short period of time, and the method comprises using an acidic copper plating bath comprising a water-soluble copper salt, sulfuric acid, chlorine ion, a brightener and a copolymer of diallylamines and sulfur dioxide and filling copper in the non-through hole by periodic current reversal copper plating.

Abstract: Provided is a colored glass fiber for use as a reinforced fiber, allowing a molded product to have high strength and good appearance. A glass fiber is surface treated with a surface treatment agent including a first silane coupling agent, a coating agent and a surfactant, colored with a coloring agent including a second silane coupling agent and a pigment, and water-washed, so that the colored glass fiber is obtained. The treatment is performed to have a sum of the weight of a surface treatment layer and a colored layer of 0.25 to 1.70 wt% with respect to the weight of the glass fiber. Due to a coating formed from the surface treatment agent on the glass surface, the colored glass fiber is not scratched by the pigment contained in the coloring agent. Consequently, the mold product doesn't degrade the strength and has good appearance due to the coloring.

Abstract: Provided is a long-fiber-reinforced thermoplastic resin preform including glass fibers excellent in strength and modulus of elasticity and easily produced and a long-fiber-reinforced resin compact excellent in strength and modulus of elasticity. The long-fiber-reinforced thermoplastic resin preform is produced by cutting to a predetermined length glass fiber bundles impregnated with a thermoplastic resin and holding the thermoplastic resin around the glass fiber bundles, and includes the glass fiber bundles as long fiber bundles. The glass fiber bundles are formed by bundling glass fibers. The glass fibers have a composition wherein the content of SiO2 is 57.0 to 63.0% by mass, the content of Al2O3 is 19.0 to 23.0% by mass, the content of MgO is 10.0 to 15.0% by mass and the content of CaO is 5.5 to 11.0% by mass, and the ratio MgO/CaO is 0.8 to 2.0.

Abstract: Pentameric CRP is produced at a high efficiency by transferring DNA, which encodes monomeric CRP, into a silkworm to thereby construct a transgenic silkworm and then collecting and purifying pentameric CRP that is produced by the transgenic silkworm constructed above.

Abstract: Glass fibers having non-circular cross sections, excellent strength and excellent modulus of elasticity, and a fiber-reinforced resin compact using the same are provided. The glass fibers having non-circular cross sections are obtained by spinning the molten glass prepared by melting a glass composition as a raw material for the glass fibers. The glass fibers have a composition in which the content of SiO2 is 57.0 to 63.0% by mass, the content of Al2O3 is 19.0 to 23.0% by mass, the content of MgO is 10.0 to 15.0% by mass and the content of CaO is 5.5 to 11.0% by mass, in relation to the total amount of the glass fibers, and the ratio of the content of MgO to the content of CaO, MgO/CaO falls within a range from 0.8 to 2.0.

Abstract: There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight.

Abstract: A polymeric composition comprising: a reaction product (c) produced by reacting an organic silane compound (a) represented by the formula: R4-n—Si—(OR?)n [wherein R represents an organic group containing an amino group; R? represents a methyl group, an ethyl group or a propyl group; and n represents an integer selected from 1 to 3] with at least one boron compound (b) selected from the group consisting of H3BO3 and B2O3; and a condensation product (d) of a metal alkoxide.

Abstract: Disclosed is an immunoassay method whereby a 5.9 kDa peptide which results from the degradation of the ?-E chain and ? chain of human fibrinogens and which is used as a peptide marker for diagnosing hepatic disease can be specifically assayed in a biological sample containing contaminating peptides by bringing antibodies that recognize the N terminal of said peptide marker and antibodies that recognize the C terminal of said peptide marker into contact with said peptide marker, forming immune complexes of said peptide marker and the two antibodies, and immunoassaying the obtained immune complexes.

Abstract: A marker for detecting pancreatic cancer, said marker comprising a glycoprotein C4BPA or PIGR, whereby a pancreatic cancer patient can be distinguished from a chronic pancreatitis patient or a normal subject and thus specifically diagnosed. Also, the marker is usable in monitoring the postoperative prognosis of a pancreatic cancer patient. When the aforesaid marker is used in combination with another pancreatic cancer marker such as CA19-9, furthermore, a pancreatic cancer patient can be distinguished from a chronic pancreatitis patient or a normal subject and diagnosed more specifically.

Abstract: Provided is a process for producing a copolymer of a diallylamine and sulfur dioxide which copolymer has a higher molecular weight and water-solubility than that obtained by a conventional production process by copolymerizing the diallylamine and sulfur dioxide in the presence of an acid and a radical polymerization initiator in a polar solvent.

Abstract: A production process for producing a glass fiber fabric that has good smoothness and is excellent in resin impregnation property is provided wherein glass fiber yarns are woven to obtain a glass fiber fabric.

Abstract: The present inventors produced transgenic silkworms which comprise a promoter of a DNA encoding a protein specifically expressed in the silk gland and a DNA encoding a recombinant antibody whose expression is regulated directly or indirectly by the promoter, and which secrete the recombinant antibody into the silk gland. The recombinant antibodies produced from the silk gland of the transgenic silkworms were confirmed to be active.