Abstract: A surface treatment agent containing: (A) a water repellent oil repellent polymer having a repeating unit derived from at least one water repellent oil repellent monomer selected from (A1) fluorine-containing monomers and (A2) non-fluorine monomers having a hydrocarbon group with 7-40 carbon atoms; (B) a silicone polymer represented by formula R533Si—O—[—Si(R51)2—O—]a—[—Si(R51)(R52)—O—]b—SiR533 (wherein each R51 group independently represents hydrogen, alkyl having 1-20 carbon atoms, aryl having 6-20 carbon atoms or alkoxy having 1-4 carbon atoms; each R52 independently represents a saturated hydrocarbon group having 23-40 carbon atoms; each R53 independently represents a hydrogen atom, an alkyl group having 1-20 carbon atoms, an aryl group having 6-20 carbon atoms, an alkoxy group having 1-4 carbon atoms or a saturated hydrocarbon group having 23-40 carbon atoms; a represents an integer of 0 or more; b represents an integer of 1 or more; and (a+b) is 10-200); and (C) a liquid medium.

Abstract: A surface treatment agent which is a water-repellent agent, includes (1) a fluorine-free block copolymer, and (2) a liquid medium which is an organic solvent, water, or a mixture of water and an organic solvent. The non-fluorinated block copolymer includes at least one block segment (A) which includes a repeating unit formed from one or more types of acrylic monomer having a long-chain hydrocarbon group containing 12-40 carbon atoms. The non-fluorinated block copolymer preferably contains a segment (B) constituted by at least one of: (B1) a block segment including a repeating unit, different from that of segment (A), that is formed from an acrylic monomer having a long-chain hydrocarbon group including 12-40 carbon atoms; (B2) a block segment including a repeating unit formed from an acrylic monomer not having a long-chain hydrocarbon group; and (B3) a random segment formed from at least two types of acrylic monomers.

Abstract: A dispersion demonstrating product stability and water repellency as a result of the concentration of an unreacted chloride monomer (a2) being 10.0 ppm or less, and containing: a non-fluorine copolymer (A) which includes a repeating unit derived from a hydrophobic monomer (a1) having a C2-40 hydrocarbon group, and a repeating unit derived from at least one chloride monomer (a2) selected from vinyl chloride and vinylidene chloride; and a liquid medium (B) which includes a water-soluble organic solvent (b1) having at least two groups selected from hydroxy groups and ether groups. Also disclosed is a method for producing the dispersion and a method for producing a treated product which includes applying the dispersion to a substrate.

Abstract: A water- and oil-repellent agent that is an aqueous dispersion containing (A) a fluorine-free polymer having repeating units derived from a fluorine-free (meth)acrylic acid ester monomer, (B) a wax, (C) an aqueous medium, and (D) an emulsifier. The fluorine-free (meth)acrylic acid ester monomer is a compound represented by the formula CH2?CA11-C(?O)—O-A12 where A11 is a hydrogen atom or a methyl group and A12 is a linear or branched C18-30 hydrocarbon group. The emulsifier includes a sorbitan ester and another emulsifier, and the emulsifier has a hydrophilic-lipophilic balance (HLB) of 7.5 to 13.5. Also disclosed is a method of producing the water- and oil-repellent agent and a method of producing a treated substrate by applying the water- and oil-repellent agent to a substrate.

Abstract: A method for producing a paper, which includes applying at least one of ionizing radiation and plasma to at least one of a paper base and a compound (A) selected from: a compound having a carbon-carbon unsaturated bond and containing no fluorine atom in a molecular structure, and a compound containing no fluorine atom in a molecular structure in which radicals are generated by irradiation of an electron beam to the compound, to introduce a layer formed from the compound (A) on a surface of the paper base.

Abstract: A fluorine-containing compound represented by general formula (1) by which high water-repellency can be obtained despite the small number of fluorine atoms: L-(R1—X—Rf—Y—R2)n??(1) wherein L represents an n-valent organic group; n represents an integer of 1 or more; Rf represents a linear or branched fluoroalkylene group containing 1 to 4 of at least any of a CF2 unit, a CFH unit and a CFRf? unit, and optionally having an ether bond, wherein Rf? represents a fluoroalkyl group having 1 carbon atom; R1 represents a direct bond, or a linear or branched hydrocarbon group having 1 to 4 carbon atoms; R2 represents a linear or branched hydrocarbon group having 7 to 29 carbon atoms, containing no fluorine atoms, and optionally having an ether bond; and X and Y each independently represent a direct bond or a divalent linking group.

Abstract: A urethane compound (A) including units formed from (A1) an isocyanate and (A2) a long-chain alcohol represented by the formula HO—Z(Y—R)n [wherein the R moieties are each independently —O—, —NH—, —O—C(?O)—, —NH—C(?O)—, —C(?O)—NH—, —O—C(?O)—NH—, —NH—C(?O)—O—, —NH—C(?O)—NH—, —NH—S(?O)2—, —S(?O)2—NH—, —NH—(CH2)m—NH—S(?O)2—, —NH—(CH2)m—S(?O)2—NH—, etc. (m is an integer of 1-5), Z is a direct bond or a di- or trivalent hydrocarbon group having 1-5 carbon atoms, and n is 1 or 2]. Also disclosed is a urethane mixture containing the urethane compound (A), and at least one selected from the polyisocyanate (A1), the long-chain alcohol (A2), a blocking agent (A3) and an alcohol compound (A4); an aqueous urethane composition; a method for producing the aqueous urethane composition; a method of treating a substrate; and a treated textile product.

Abstract: A dispersion containing a fluorine-containing polymer and a liquid medium. The fluorine-containing polymer includes a repeating unit derived from a fluorine-containing monomer (a) having a Q value of 2.0 or more and comprising a fluoroalkyl group, and a repeating unit derived from a chloride monomer (b) that is at least one selected from vinyl chloride and vinylidene chloride. Further, the dispersion has a concentration of unreacted chloride monomer (b) of 2.0 ppm or less.

Abstract: An evaluation method for evaluating a spot generated on a substrate that has been treated with a repellent, the method includes an acquiring step of acquiring image data including data on the substrate that has been treated with the repellent to be evaluated, a spot-detecting step of creating a smoothed image from the image data, binarizing the smoothed image and detecting a region of a spot generated on the substrate, and a spot-evaluating step of determining an evaluation value of the spot according to an area of the region of the spot detected. Also disclosed is a repellent evaluation device including an acquire, a classifier, a detector and an evaluator.

Abstract: A ball screw device includes a threaded shaft, a nut, and balls. The nut body includes a central tubular portion and an end tubular portion. The central tubular portion has a through-hole and an end surface. The nut further includes a circulation member and a snap ring. The circulation member is provided on an inner peripheral side of the end tubular portion such that the circulation member is in contact with the end surface. The snap ring is fitted to a circumferential groove provided on an inner periphery of the end tubular portion. The snap ring is configured to fix the circulation member in a manner such that the circulation member is sandwiched between the snap ring and the end surface.

Abstract: A nut includes a circulation passage such that balls are circulated through the circulation passage from a first axial end part of rolling raceway to a second axial end part of the rolling raceway. The nut includes a nut body, and end members connected to the opposite axial ends of the nut body. The nut body includes a first member and a second member. The first member includes a second spiral groove on the inner periphery of the first member and a passage having a groove shape opened radially outwardly, the passage being formed on the outer periphery of the first member such that the passage constitutes part of the circulation passage. The second member is placed radially outwardly from the first member and closes the passage from its radially outer side.

Abstract: A fluorine-containing polymer having repeating units derived from (a) a fluorine-containing monomer, (b) a fluorine-free non-crosslinkable monomer, and (c) a fluorine-free crosslinkable monomer. The fluorine-containing monomer (a) is a compound represented by formula: CH2?C(-X)—C(?O)—Y—Z—Rf . . . (a-I), wherein X is a hydrogen atom, a monovalent organic group or a halogen atom, Y is —O— or —NH—, Z is a direct bond or a divalent organic group, and Rf is a fluoroalkyl group having 1 to 20 carbon atoms. The fluorine-free non-crosslinkable monomer (b) includes (b1) a cyclic hydrocarbon group-containing monomer and (b2) a low Tg monomer, a homopolymer of which has a glass transition temperature (Tg) of lower than 0° C. Also disclosed is a coating composition including the fluorine-containing polymer and a liquid medium, a method for producing a coated article which includes coating an article with the coating composition and a coated article.

Abstract: A softening agent composition including (1) a silicone polymer, (2) a water-repellent polymer, (3) an emulsifier, and (4) a liquid medium that is water or a mixture of water and an organic solvent. Also disclosed is a method for producing the softening agent composition which includes producing a water-repellent polymer by polymerizing, in the presence of the silicone polymer, a monomer that constitutes the water-repellent polymer. The water-repellent polymer may be at least one selected from the group consisting of fluorine-containing polymers and non-fluorine-containing polymers. Also disclosed is a method for treating a substrate with the softening agent composition and a substrate treated with the softening agent composition.

Abstract: A water- and oil-repellent agent for fibers containing a bottle brush polymer having a structure represented by the following formula (1), wherein R1 is H or CH3; R2 is a divalent organic group; R3 is a polymer chain having a structure represented by the following formula (2) (wherein R4 is H or CH3; R5 is a C16-C40 monovalent hydrocarbon group; and n is an integer of 10 to 1000); and m is an integer of 10 to 5000:

Abstract: Provided is a fluorinated polymer that can impart excellent washing durability and water- and oil-repellency to fibers, said fluorinated polymer having a repeating unit derived from a fluorinated monomer (a) that comprises a first fluorinated monomer (a1) represented by the formula: CH2?C(—X1)—C(?O)—Y1—Z1—Rf1 [wherein X1 represents a halogen atom; Y1 represents —O— or —NH—; Z1 represents a direct bond or a bivalent organic group; and Rf1 represents a fluoroalkyl group having 1 to 20 carbon atoms] and a second fluorinated monomer (a2) represented by the formula: CH2?C(—X2)—C(?O)—Y2—Z2—Rf2 [wherein X2 represents a monovalent organic group or a hydrogen atom; Y2 represents —O— or —NH—; Z2 represents a direct bond or a bivalent organic group; and Rf2 represents a fluoroalkyl group having 1 to 20 carbon atoms].

Abstract: Provided is a surface treatment agent which does not use fluorine-containing monomers, particularly fluoroalkyl group-containing monomers. The surface treatment agent is a water-based emulsion which includes: a copolymer (1) which includes a first polymer formed from first monomers, and a second polymer formed from second monomers, wherein the second polymer is polymerized in the presence of the first polymer, the first monomers include a long-chain acrylate ester monomer (a) represented by the formula CH2?CA11—C(?O)—O-A12 (in the formula, A11 represents hydrogen, a monovalent organic group, or a halogen, and A12 represents a C18-30 straight-chain or branched hydrocarbon group), the first monomers do not include a halogenated olefin monomer (b), and the second monomers include the halogenated olefin monomer (b); a surfactant (2) including a nonionic surfactant; and a liquid medium (3) including water.

Abstract: A fluorine-containing polymer including a repeat unit derived from a fluorine-containing monomer (A1) and a repeat unit derived from a hydrocarbon group-bearing fluorine-free monomer (A2). The fluorine-free monomer (A2) is preferably at least one monomer selected from (A2-1) R22—C(?O)—NH—R23—O—R21, (A2-2) CH2?C(—R32)—C(?O)—Y31—Z31(—Y32—R31)n, and (A2-3) X41N(H)r—R41. Also disclosed is a surface treatment agent containing (A) the fluorine-containing polymer and (B) a liquid medium, as well as a method for producing the surface treatment agent and a method for producing a treated substrate.

Abstract: A non-fluorinated block copolymer including at least one block segment (A), wherein the block segment (A) includes a repeating unit formed from one or more types of acrylic monomers having a long-chain hydrocarbon group containing 7-40 carbon atoms. The non-fluorinated block copolymer preferably contains a segment (B) constituted by at least one of: (B1) a block segment including a repeating unit, different from that of segment (A), that is formed from an acrylic monomer having a long-chain hydrocarbon group comprising 7-40 carbon atoms; (B2) a block segment including a repeating unit formed from an acrylic monomer not having a long-chain hydrocarbon group; and (B3) a random segment formed from at least two types of acrylic monomers.

Abstract: Provided is a water repellent composition which does not use a fluorine-containing monomer, especially a fluoroalkyl group-containing monomer. A water repellent composition which contains (1) (a) a polymer which has a repeating unit derived from an amide group-containing monomer that is represented by formula: (wherein R1 represents an organic residue having an ethylenically unsaturated polymerizable group; R2 represents a hydrocarbon group having 7-30 carbon atoms; and R3 represents a hydrocarbon group having 1-5 carbon atoms) in an amount of 2-100% by weight relative to the polymer, and (2) a liquid medium.

Abstract: Provided is a surface treatment agent which does not use fluorine-containing monomers, particularly fluoroalkyl group-containing monomers. Additionally, provided is a copolymer which includes a first polymer formed from first monomers, and a second polymer formed from second monomers. The copolymer does not include fluorine. The second polymer is polymerized in the presence of the first polymer. The first monomers include a long-chain acrylate ester monomer (a) represented by the formula CH2=CA11-C(?O)—O-A12 (in the formula, A11 represents hydrogen, a monovalent organic group, or a halogen, and A12 represents a C18-30 straight-chain or branched hydrocarbon group). The first monomers and the second monomers both include a halogenated olefin monomer (b).