Abstract: To provide a water/oil repellent composition which is excellent in the stability as a working liquid and the water repellency whereby the occurrence of scum having a high adhesion is low, to provide its production process and to provide an article of which the surface is treated with the water/oil repellent composition whereby the occurrence of dirt is suppressed. A water/oil repellent composition which comprises a nonionic surfactant having a melting point of from 50° C. to 70° C., a fluorinated copolymer (for example, a copolymer of a (meth)acrylate having a C6 perfluoroalkyl group) and a medium containing water.

Abstract: To provide a water repellent composition whereby it is possible to obtain an article having excellent hot water repellency and dry soil resistance, a method for producing the water repellent composition, and an article excellent in hot water repellency and dry soil resistance. The water repellent composition comprises a copolymer having structural units based on monomer (a), structural units based on monomer (b), and structural units based on monomer (c) in specific proportions, and an aqueous medium. Monomer (a): compound represented by RF-Q-Z—C(O)C(R)?CH2 (RF: C4-6 perfluoroalkyl group, Q: divalent hydrocarbon group or single bond, Z: —O— or —NH—, R: methyl group or chlorine atom). Monomer (b): (meth)acrylate having cyclic hydrocarbon group, of which the homopolymer has a glass transition temperature of at least 50° C. Monomer (c): vinylidene chloride.

Abstract: To provide a liquid repellent composition which is excellent in liquid repellency and durability and an article having a liquid repelling film. A liquid repellent composition comprising a copolymer (I) and a copolymer (II), characterized in that the copolymer (I) containing from 65 to 95 mass % of a polymerized unit (a) (referred to as “[a1]”) and from 1 to 30 mass % of a polymerized unit (b); and the copolymer (II) containing from 25 to 80 mass % of a polymerized unit (a) (referred to as “[a2]”) and from 1 to 50 mass % of a polymerized unit (c) are contained in an amount of the copolymer (I)/the copolymer (II)=10/90 to 95/5 (mass ratio), and [a1]?[a2]?10 (mass %).

Abstract: To provide a fluorinated copolymer comprising, in specific ratios, units derived from F(CF2)6CH2CH2OC(O)C(CH3)?CH2, units derived from vinyl chloride, units derived from vinylidene chloride, units derived from an alkyl (meth)acrylate having a C12-30 alkyl group, and units derived from a monomer having no fluoroalkyl group and having a cross-linkable functional group, wherein units derived from F(CF2)nCH2CH2OC(O)C(CH3)?CH2 (wherein n is an integer of from 1 to 5) are in at most a specific ratio; a process for producing such a fluorinated copolymer; a water repellent composition containing such a fluorinated copolymer; and an article treated with such a water repellent composition.

Abstract: To provide a water/oil repellent composition which is excellent in the stability as a working liquid and the water repellency whereby the occurrence of scum having a high adhesion is low, to provide its production process and to provide an article of which the surface is treated with the water/oil repellent composition whereby the occurrence of dirt is suppressed. A water/oil repellent composition which comprises a nonionic surfactant having a melting point of from 50° C. to 70° C., a fluorinated copolymer (for example, a copolymer of a (meth)acrylate having a C6 perfluoroalkyl group) and a medium containing water.

Abstract: To provide a fluorinated copolymer comprising, in specific ratios, units derived from F(CF2)6CH2CH2OC(O)C(CH3)?CH2, units derived from vinyl chloride, units derived from vinylidene chloride, units derived from an alkyl (meth)acrylate having a C12-30 alkyl group, and units derived from a monomer having no fluoroalkyl group and having a cross-linkable functional group, wherein units derived from F(CF2)nCH2CH2OC(O)C(CH3)?CH2 (wherein n is an integer of from 1 to 5) are in at most a specific ratio; a process for producing such a fluorinated copolymer; a water repellent composition containing such a fluorinated copolymer; and an article treated with such a water repellent composition.

Abstract: To provide a water/oil repellent composition which can impart sufficient post-air-drying water/oil repellency to the surface of an article, and which presents a low environmental impact, and an article having its surface treated with the water/oil repellent composition. A water/oil repellent composition comprising a copolymer (A) having structural units based on a monomer (a), structural units based on a monomer (b), structural units based on a monomer (c) and/or structural units based on a monomer (d); and an aqueous medium (B) containing water, and a film-forming assistant (x) and/or a film-forming assistant (y). Monomer (a): a monomer having a C1-6 polyfluoroalkyl group, monomer (b): vinylidene chloride, monomer (c): a monomer, the homopolymer of which has a glass transition temperature of at least 20° C., monomer (d): a monomer having a crosslinkable functional group, film-forming assistant (x): a specific amide solvent, and film-forming assistant (y): a specific glycol solvent.

Abstract: To provide a water/oil repellent composition which can impart water/oil repellency to a surface of an article without having its texture deteriorated, and has excellent durability against washing and stability, a method for producing such a composition, and an article treated with such a water/oil repellent composition. A water/oil repellent composition which comprises a copolymer having polymerized units derived from monomer (a), polymerized units derived from monomer (b) and polymerized units derived from monomer (c). Here, monomer (a) is a compound represented by the formula: (Z—Y)nX; wherein Z is a C1-6 perfluoroalkyl group or the like; Y is a bivalent organic group or a single bond; n is 1 or 2; and X is a polymerizable unsaturated group; monomer (b) is a (meth)acrylate having no Rf group and having a C12-18 alkyl group; and monomer (c) is monomer (c1) having no Rf group and having a blocked isocyanate group or monomer (c2) having no Rf group and having at least two polymerizable unsaturated groups.

Abstract: To provide a water/oil repellent composition which can impart sufficient post-air-drying water/oil repellency to the surface of an article, and which presents a low environmental impact, and an article having its surface treated with the water/oil repellent composition. A water/oil repellent composition comprising a copolymer (A) having structural units based on a monomer (a), structural units based on a monomer (b), structural units based on a monomer (c) and/or structural units based on a monomer (d); and an aqueous medium (B) containing water, and a film-forming assistant (x) and/or a film-forming assistant (y). Monomer (a): a monomer having a C1-6 polyfluoroalkyl group, monomer (b): vinylidene chloride, monomer (c): a monomer, the homopolymer of which has a glass transition temperature of at least 20° C., monomer (d): a monomer having a crosslinkable functional group, film-forming assistant (x): a specific amide solvent, and film-forming assistant (y): a specific glycol solvent.

Abstract: To provide a water/oil repellent composition which can impart water/oil repellency to a surface of an article without having its texture deteriorated, and has excellent durability against washing and stability, a method for producing such a composition, and an article treated with such a water/oil repellent composition. A water/oil repellent composition which comprises a copolymer having polymerized units derived from monomer (a), polymerized units derived from monomer (b) and polymerized units derived from monomer (c). Here, monomer (a) is a compound represented by the formula: (Z—Y)nX; wherein Z is a C1-6 perfluoroalkyl group or the like; Y is a bivalent organic group or a single bond; n is 1 or 2; and X is a polymerizable unsaturated group; monomer (b) is a (meth)acrylate having no Rf group and having a C12-18 alkyl group; and monomer (c) is monomer (c1) having no Rf group and having a blocked isocyanate group or monomer (c2) having no Rf group and having at least two polymerizable unsaturated groups.

Abstract: To provide a liquid repellent composition which is excellent in liquid repellency and durability and an article having a liquid repelling film. A liquid repellent composition comprising a copolymer (I) and a copolymer (II), characterized in that the copolymer (I) containing from 65 to 95 mass % of a polymerized unit (a) (referred to as “[a1]”) and from 1 to 30 mass % of a polymerized unit (b); and the copolymer (II) containing from 25 to 80 mass % of a polymerized unit (a) (referred to as “[a2]”) and from 1 to 50 mass % of a polymerized unit (c) are contained in an amount of the copolymer (I)/the copolymer (II)=10/90 to 95/5 (mass ratio), and [a1]?[a2]?10 (mass %).

Abstract: The present invention provides a water and oil proofing composition which imparts excellent water and oil resistance and comprises a fluorocopolymer comprising polymerized units of (Z-Y)nX (wherein Z: a C1-6 perfluoroalkyl group or the like, Y: an alkylene group or the like, n: 1 or 2, X: a polymerizable unsaturated group), polymerized units of CH2?CR1-G-(R2O)q—R3 (wherein R1: a hydrogen atom or the like, R2: a C2-4 alkylene group or the like, q: an integer of from 1 to 50, G: —COO(CH2)r— (r: an integer of from 0 to 4), R3: a hydrogen atom or the like, and polymerized units of CH2?CR4-M-Q-NR5R6 (wherein R4: a hydrogen atom or the like, Q: a C2-4 alkylene group or the like, R5 and R6: C1-8 alkyl groups or the like) and an aqueous medium.

Abstract: The present invention provides a water and oil proofing composition which imparts excellent water and oil resistance. A composition which comprises a fluorocopolymer comprising polymerized units of (Z-Y)nX (wherein Z: a C1-6 perfluoroalkyl group or the like, Y: an alkylene group or the like, n: 1 or 2, X: a polymerizable unsaturated group), polymerized units of CH2?CR1-G-(R2O)q—R3 (wherein R1: a hydrogen atom or the like, R2: a C2-4 alkylene group or the like, q: an integer of from 1 to 50, G: —COO(CH2)r— (r: an integer of from 0 to 4), R3: a hydrogen atom or the like) and polymerized units of CH2?CR4-M-Q-NR5R6 (wherein R4: a hydrogen atom or the like, Q: a C2-4 alkylene group or the like, R5 and R6: C1-8 alkyl groups or the like) and an aqueous medium.

Abstract: A water dispersion type water and oil repellent composition which is capable of imparting durable water resistance to clothing for which high water and oil repellency is required and which is capable of imparting high oil repellency to paper. The water dispersion type water and oil repellent composition comprises 1) an aqueous medium, 2) a polymer of a monomer having a polyfluoroalkyl group and one polymerizable unsaturated group and 3) a mono(or poly)ol or an alkylene oxide thereof, as essential components.

Abstract: A water dispersion type water and oil repellent composition which is capable of imparting durable water resistance to clothing for which high water and oil repellency is required and which is capable of imparting high oil repellency to paper. The water dispersion type water and oil repellent composition comprises 1) an aqueous medium, 2) a polymer of a monomer having a polyfluoroalkyl group and one polymerizable unsaturated group and 3) a mono(or poly)ol or an alkylene oxide thereof, as essential components.