Abstract: [Subject] The present invention provides an aqueous dispersion for fiber treatment which dispersion has excellent fiber sizing properties and can improved the adhesion between fibers and a matrix resin. [Means for Solving the Subject] The aqueous dispersion for fiber treatment of the present invention comprises (A) a specific first propylene resin, (B) a specific second propylene resin, (C) an anion type and/or nonion type surfactant and (D) water in a specific weight proportion, wherein resin solid components derived from the resins (A) and (B) are dispersed in water, the weight average molecular weight of the resin (A) and the weight average molecular weight of the resin (B) are different each other, the Mw(a) is larger than the Mw(b), and resin solid components have an average particle diameter of 0.03 to 3 ?m.

Abstract: An ink jet printer has an ink circulation unit including an image recording unit to discharge ink to perform image recording on a recording medium; a first tank disposed above the image recording unit in a gravitational force direction to supply the ink to the image recording unit through a first ink path; a second tank disposed below the image recording unit in the gravitational force direction to collect the ink that was not discharged from the image recording unit through the second ink path; a pump to send the ink from the second tank to the first tank through a third ink path, and at least a part of the first ink path connecting the first tank and the image recording unit is positioned below an ink liquid level in the second tank in the gravitational force direction.

Abstract: A solvent dispersion of a composite resin which comprises a solvent and a composite resin comprising a thermoplastic elastomer (A) and a polymer of copolymerizable monomers (B) comprising a monomer having an ?,?-monoethylenically unsaturated group and other copolymerizable monomer(s), wherein the thermoplastic elastomer (A) is a propylene-based elastomer having a molecular weight distribution (Mw/Mn) of not more than 3 as measured by gel permeation chromatography (GPC), and the copolymerizable monomers (B) include at least one monomer containing no functional groups; and uses of the dispersion. The dispersion can be used to provide a coating material, primer, adhesive, additive, binder, film, and primer for strippable paints and traffic paints, which have excellent adhesiveness to various materials.

Abstract: A solvent dispersion of a composite resin which comprises a solvent and a composite resin comprising a thermoplastic elastomer (A) and a polymer of copolymerizable monomers (B) comprising a monomer having an ?,?-monoethylenically unsaturated group and other copolymerizable monomer(s), wherein the thermoplastic elastomer (A) is a propylene-based elastomer having a molecular weight distribution (Mw/Mn) of not more than 3 as measured by gel permeation chromatography (GPC), and the copolymerizable monomers (B) include at least one monomer containing no functional groups; and uses of the dispersion. The dispersion can be used to provide a coating material, primer, adhesive, additive, binder, film, and primer for strippable paints and traffic paints, which have excellent adhesiveness to various materials.

Abstract: An inkjet printer includes a first tank for storing ink supplied to a ink jetting unit, a second tank for storing the ink that is not jetted from the ink jetting unit, and a pump for sending the ink within the second tank to the first tank, and a filling unit for filling a ink circulation path with the ink. The pump starts to be driven if the amount of ink within the first tank is smaller than a predetermined amount and the amount of ink within the second tank is equal to or larger than a predetermined amount. Additionally, the filling unit fills the ink circulation path with the ink if the amount of ink within the first tank is smaller than the predetermined amount and the amount of ink within the second tank is smaller than the predetermined amount.

Abstract: In an ink-jet printer of the present invention, an ink circulation path 4 is formed by an ink head 2, a first tank 31, a second tank 32, and a pump 33. The ink-jet printer switches between an ink-circulation state and a no ink-circulation state during a printing operation, and is capable of performing printing in either of the states.

Abstract: An ink circulating unit is configured by including an ink head for spraying ink, a first tank, which is arranged upper than the ink head in a gravitational direction, for storing the ink to be supplied to the ink head, a second tank, which is arranged lower than the ink head in the gravitational direction, for storing the ink not sprayed from the ink head, and a pump for conveying the ink within the second tank to the first tank. A first step of driving the pump for a predetermined amount of time in a state where the first tank is sealed, and a second step of stopping the pump for a predetermined amount of time in a state where the air within the first tank is released are executed to fill the ink head with the ink.

Abstract: There is provided a coating material comprising a mixture of a water-based resin composition of a thermoplastic elastomer (A) and/or a thermoplastic elastomer (B) in which at least one moiety is modified with a functional group; one of a water-based resin composition of a resin (G) formed from a copolymerizable monomer (G-1) which includes a monomer having an ?,?-monoethylenic unsaturated group and other copolymerizable monomer, and a water-based resin composition of an urethane resin (U); and a water-based resin composition of a petroleum-based hydrocarbon resin (D) and/or a rosin-based resin (E) and/or a terpene-based resin (F). The coating material causing no separation phenomenon provides a coating composition or a primer with which spray coating is possible, and is a completely water-based coating material exhibiting an excellent adhesivity to a molded article of various resins such as polyolefin and a synthetic rubber or to metals such as a steel plate and aluminum.

Abstract: An image recording apparatus according to the invention has a nozzle plate having a nozzle hole for ejecting ink, a wiper blade for cleaning the nozzle plate, a blade holder holding the wiper blade, and a wiper base containing and holding the blade holder. When the wiper blade abuts on the nozzle plate, the blade holder is held and inclined in the wiper base so that the wiper blade follows the nozzle plate.

Abstract: A solvent dispersion of a composite resin which comprises a solvent and a composite resin comprising a thermoplastic elastomer (A) and a polymer of copolymerizable monomers (B) comprising a monomer having an ?,?-monoethylenically unsaturated group and other copolymerizable monomer(s), wherein the thermoplastic elastomer (A) is a propylene-based elastomer having a molecular weight distribution (Mw/Mn) of not more than 3 as measured by gel permeation chromatography (GPC), and the copolymerizable monomers (B) include at least one monomer containing no functional groups; and uses of the dispersion. The dispersion can be used to provide a coating material, primer, adhesive, additive, binder, film, and primer for strippable paints and traffic paints, which have excellent adhesiveness to various materials.

Abstract: A coating resin that is thermoplastic, exhibits good appearance, solvent resistance and adherence and is excellent in abrasion resistance; and a coting liquid or coating film thereof. In particular, a (meth)acrylic copolymer resin (A) produced by radical polymerization of 4 to 50 mass % of (meth)acrylic acid (a-1), 0.5 to 17 mass % of (meth)acrylamide (a-2), and 35 to 95.5 mass % of a compound having reactive unsaturated bond other than the compounds (a-1) and (a-2). With respect to the coating film produced therefrom, both the glass transition temperature Tg1 measured by means of a rigid-body pendulum type viscoelasticity measuring instrument and the glass transition temperature Tg2 measured by means of a differential scanning calorimeter (DSC) are 110° C. or higher. The coating film is an abrasion resistant film whose abrasion resistance measured in accordance with the Taber abrasion testing method is 80 rotations or greater.

Abstract: A coating resin that is thermoplastic, exhibits good appearance, solvent resistance and adherence and is excellent in abrasion resistance; and a coting liquid or coating film thereof. In particular, a (meth)acrylic copolymer resin (A) produced by radical polymerization of 4 to 50 mass % of (meth)acrylic acid (a-1), 0.5 to 17 mass % of (meth)acrylamide (a-2), and 35 to 95.5 mass % of a compound having reactive unsaturated bond other than the compounds (a-1) and (a-2). With respect to the coating film produced therefrom, both the glass transition temperature Tg1 measured by means of a rigid-body pendulum type viscoelasticity measuring instrument and the glass transition temperature Tg2 measured by means of a differential scanning calorimeter (DSC) are 110° C. or higher. The coating film is an abrasion resistant film whose abrasion resistance measured in accordance with the Taber abrasion testing method is 80 rotations or greater.

Abstract: A resin composition of the present invention is obtainable by adding a photo-polymerization initiator (d) to a resin solution (a) containing a modified product of a thermoplastic resin (A). The modified product is prepared by conducting radical polymerization of the thermoplastic resin (A) with a (co)polymer (B) of a copolymerizable monomer (C) comprising a monomer having an ?,?-mono-ethynically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)1(B) of 1/9 to 9/1, in an organic solvent, or by conducting polymerization of a copolymerizable monomer (C) comprising a monomer having an ?,?-mono-ethylenically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)/(C) of 1/9 to 9/1, in an organic solvent in the presence of the thermoplastic resin (A), and then conducting radical polymerization thereof. A paint including the resin composition and a process for forming a coating film are also disclosed.

Abstract: Disclosed is a thermosetting powder coating composition comprising a glydicyl group-containing acylic copolymer component (A) and a curative component (B) composed of dodecanedioic acid linear polyacid anhydride or tetradecanedioic acid linear polyacid anhydride, wherein the time &Dgr;T required for decrease of the absolute value of a complex elastic modulus (&eegr;*) of said composition from 100000 Pa·s to 5 Pa·s is not more than 200 seconds, said absolute value of a complex elastic modulus being measured by a dynamic viscoelasticity measuring device under the specific conditions. The thermosetting powder coating composition is favorable for clear coating of automotive parts and automotive top clear coating, and exhibits, particularly in coating of a thin-film of 35 to 50 &mgr;m, excellent appearance (smoothness, gloss, transparency, etc.), physical properties of practical level (hardness, scratch/mar resistance, etc.) and chemical properties (acid resistance, solvent resistance, etc.).

Abstract: A resin composition of the present invention is obtainable by adding a photo-polymerization initiator (d) to a resin solution (a) containing a modified product of a thermoplastic resin (A). The modified product is prepared by conducting radical polymerization of the thermoplastic resin (A) with a (co)polymer (B) of a copolymerizable monomer (C) comprising a monomer having an &agr;,&bgr;-mono-ethylenically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)/(B) of 1/9 to 9/1, in an organic solvent, or by conducting polymerization of a copolymerizable monomer (C) comprising a monomer having an &agr;,&bgr;-mono-ethylenically unsaturated group, or the monomer and other copolymerizable monomers in a weight ratio (A)/(C) of 1/9 to 9/1, in an organic solvent in the presence of the thermoplastic resin (A), and then conducting radical polymerization thereof.

Abstract: Present invention is a resin composition obtained by reacting polyolefin (A) with a (co)polymer (B) prepared from a copolymerizable monomer mixture (C) comprising an &agr;,&bgr;-monoethylenically unsaturated monomer and other copolymerizable monomers in a weight ratio (A)/(B)=1/9-9/1 under radical generation in an organic solvent, or by polymerizing a copolymerizable monomer mixture (C) comprising an &agr;,&bgr;-monoethylenically unsaturated monomer and other copolymerizable monomers in the presence of polyolefin (A) in a weight ratio (A)/(C)=1/9-9/1 in an organic solvent and successively by reacting the obtained reaction mass under radical generation; and the resin composition has good solution stability, does not cause liquid phase separation or solid precipitation, can be used as intact, is excellent in sprayability at high concentration, and, specifically, has novel function and effect that adhesion to polyolefin molded articles is excellent; and the resin composition can be favorably used f

Abstract: The present invention provides a process for producing a fiber reinforced composite which contains the reinforcing fibers uniformly dispersed therein and therefore has uniformity of strength. The process comprises;preparing an aqueous slurry which comprises reinforcing fibers, water-soluble organic polymers A charged in water and particulate organic polymers,adding thereto water-soluble organic polymers B charged opposite to said organic polymers A in water to flocculate the solid components in said aqueous slurry, andthen removing aqueous medium and molding.

Abstract: A PTC element comprising a conductive sheet of a crystalline polyolefin matrix and a conductive filler, having provided on both sides thereof an electrode of a metallic foil, the PTC element having a resistivity at 20.degree. C. (.rho..sub.20) of not more than 1.8 .OMEGA..multidot.cm, a peak resistivity (.rho..sub.p) of not less than 2.0.times.10.sup.6 .OMEGA..multidot.cm, and a temperature difference ?T.sub.a (0.degree.C.)-T.sub.b (.degree.C.)! of not greater than 10.degree. C., wherein T.sub.a (.degree.C.) is a temperature at which the resistivity is 10.sup.6 times the resistivity at 20.degree. C. (.rho..sub.20) and T.sub.b (.degree.C.) is a temperature at which the resistivity is 10 times the resistivity at 20.degree. C. (.rho..sub.20).

Abstract: A slurry containing a precursor fiber convertible to carbon fiber and/or a carbon fiber and, based on 100 parts by weight of the fiber, 10 to 300 parts by weight of a thermosetting resin, e.g. phenol resin, is processed into a random web. This web may contain a pitch or an organic granular material. The web is hot-pressed between a pair of belts while curing of the resin is inhibited to prepare a prepreg sheet. This sheet is disposed, leaving a clearance, in a mold having ribs on a molding surface and heated over the melting point of the resin for expansion and complete cure to provide a porous composite sheet equipped with grooves. This porous composite sheet is carbonized or graphitized to produce a porous carbonaceous material for use as a fuel cell electrode material and so on. This porous carbonaceous material has high homogeneity, gas permeability, electrical conductivity, heat conductivity and mechanical strength.

Abstract: The present invention provides a composite sheet electrode which has high strength, excellent current collecting properties and which is used efficiently as an active material for an electrode. The electrode has excellent discharge capacities and can be easily formed into an electrode terminal. A cell employing this electrode is also disclosed. The invention also provides a composite sheet electrode having a porosity of 20 to 80% containing 5 to 95% by weight of an active material of an electrode, 1 to 50% by weight of a current collecting material and heat fusible short fibers. The present invention also provides a composite sheet electrode having a porosity of 20 to 80%, which is made up of a composite sheet containing 5 to 95% by weight of an active material as an electrode and 5 to 95% by weight of heat fusible short fibers, as well as a current collecting material layer formed on said composite sheet. The present invention further provides a cell employing the latter-mentioned composite sheet electrode.