Asahi Glass Company, Limited

Agc Inc.

Takenaka Komuten Co., Ltd.

Takenaka Doboku Co., Ltd.

Kazunori Sugiyama

Minako Shimada

Yuuichi Oomori

Kyouichi Kaneko

Nobuyuki Otozawa

Reika Fukuda

Masahiro Miyazaki

Takashi Inoue

Hiroaki Inoue

Kyoichi Kaneko

Hiroyuki Hara

Sho Masuda

Takao Hirono

Shoji Furuta

Toyomichi Shimada

Yoshinori Kukino

Mituo Miura

Takumi Fujii

Kazuhiro Kawakami

Takafumi Hashimoto

Chiaki Yoshida

Syuichiro Sugimoto

Motonobu Sakakibara

Mamoru Ogishima

Yuichi Oomori

Yuichi Ohmori

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&#xb0; C. to 70&#xb0; C., a fluorinated copolymer (for example, a copolymer of a (meth)acrylate having a Cperfluoroalkyl group) and a medium containing water.

Water/oil repellent composition, method for producing water/oil repellent composition and article

A water/oil repellent composition which comprises a copolymer (A) comprising from 40 to 95 mass % of monomer (a1) units, from 1 to 60 mass % of monomer (a2) units and from 0 to less than 5 mass % of monomer (a3) units, a copolymer (B) comprising from 40 to 91 mass % of monomer (b1) units, from 2 to 20 mass % of monomer (b2) units, from 5 to 20 mass % of monomer (b3) units, and from 2 to 20 mass % of vinyl chloride (b4) units, and a liquid medium (C), wherein monomers (a1) and (b1) are (Z&#x2014;Y)X [Z is a Cpolyfluoroalkyl group, etc., Y is a divalent organic group having no fluorine atom, etc., n is 1 or 2, and X is a specific group having a polymerizable unsaturated group], monomers (a2) and (b2) are vinylidene chloride or vinylidene fluoride, and monomers (a3) and (b3) are a (meth)acrylate having a saturated hydrocarbon group having at least 12 carbon atoms.

Water/oil repellant composition, article and process for producing article

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 '[a]') 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 '[a]') 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 [a]&#x2212;[a]&#x2267;10 (mass %).

Liquid repellent composition, liquid repellent processing method, and article having liquid repellent film

To provide a fluorinated copolymer comprising, in specific ratios, units derived from F(CF)CHCHOC(O)C(CH)&#x2550;CH, units derived from vinyl chloride, units derived from vinylidene chloride, units derived from an alkyl (meth)acrylate having a Calkyl group, and units derived from a monomer having no fluoroalkyl group and having a cross-linkable functional group, wherein units derived from F(CF)CHCHOC(O)C(CH)&#x2550;CH(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.

Fluorinated copolymer and process for its production, water repellent composition, and article

To provide a water/oil repellent composition which can give water/oil repellency to a surface of an article and has excellent durability (wash durability and heavy-rain durability), a method for producing such a composition, and an article which has water/oil repellency and is less susceptible to deterioration of water/oil repellency when it is washed or in heavy rain. 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&#x2014;Y)X; wherein Z is a Cperfluoroalkyl 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 polyfluoroalkyl group and having an Calkyl group; and monomer (c) is vinylidene chloride.

Water/oil repellent composition, method for production thereof, and article

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 Cpolyfluoroalkyl group, monomer (b): vinylidene chloride, monomer (c): a monomer, the homopolymer of which has a glass transition temperature of at least 20&#xb0; 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.

Water/oil repellent composition, method for its production and article

To provide a copolymer which can impart sufficient dynamic water repellency, after air-drying water repellency and friction durability to a surface of an article, and which has low impact on the environment, a method for producing the same, a water repellent composition and an article excellent in dynamic water repellency, after air-drying water repellency and friction durability. A copolymer which is characterized in that it has structural units based on the following monomer (a) and structural units based on the following monomer (b), wherein the content of structural units based on the monomer (a) is from 5 to 95 mass % in the total structural units (100 mass %), the content of structural units based on the monomer (b) is from 5 to 60 mass % in the total structural units (100 mass %) and the sum of the contents of structural units based on the monomer (a) and structural units based on the monomer (b) is at least 65 mass % in the total structural units (100 mass %), and a water repellent composition which comprises the copolymer: Monomer (a): a (meth)acrylate having no Rgroup and having a Calkyl group; Monomer (b): a halogenated olefin.

Copolymer and method for producing the same

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&#x2014;Y)X; wherein Z is a Cperfluoroalkyl 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 Rgroup and having a Calkyl group; and monomer (c) is monomer (c1) having no Rgroup and having a blocked isocyanate group or monomer (c2) having no Rgroup and having at least two polymerizable unsaturated groups.

A water/oil repellent composition which comprises a copolymer having polymerized units derived from monomer (a) and polymerized units derived from monomer (b), wherein the proportion of the polymerized units derived from the monomer (b) is 30 to 80 mol % in the total of the polymerized units derived from the monomer (a) and the polymerized units derived from the monomer (b). Monomer (a) is a compound represented by the formula: (Z&#x2014;Y)X; wherein Z is a Cperfluoroalkyl group or the like; Y is a bivalent organic group or the like; n is 1 or 2; and X is a polymerizable unsaturated group; and monomer (b) is a (meth)acrylate having no polyfluoroalkyl group and having an Calkyl group.

To provide a water/oil repellent composition which is capable of imparting sufficient dynamic water repellency and post-air-drying water repellency to the surface of an article and which presents a low environmental impact, a method for its production and a method for treating an article. A water/oil repellent composition which comprises a copolymer having structural units based on the following monomer (a) and structural units based on the following monomer (b) and having a mass average molecular weight of at least 40,000, and a medium, is used. Monomer (a): a compound represented by (Z&#x2014;Y)X, wherein Z is a Cpolyfluoroalkyl group or the like, Y is a bivalent organic group or the like, n is 1 or 2, and X is a polymerizable unsaturated group. Monomer (b): an olefin, a homopolymer of which has a glass transition temperature of from &#x2212;50&#xb0; C. to 50&#xb0; C.

Water/oil repellent composition, method for its production and method for treating article

To provide a method for producing a water/oil repellent composition which can impart water/oil repellency to a surface of an article and has excellent durability (wash durability and heavy-rain durability) and an article which has water/oil repellency and is less susceptible to deterioration of water/oil repellency when it is washed or in heavy rain. A method for producing a water/oil repellent composition which comprises polymerizing a monomer component comprising the following monomer (a) in coexistence with the following compound (x) in a medium in the presence of a surfactant and a polymerization initiator: monomer (a) is a compound of the formula (Z&#x2014;Y)X wherein Z is a Cpolyfluoroalkyl 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; and the compound (x) is a compound having at least two groups of &#x2014;(CH)&#x2014;CHR&#x2014;(CH)&#x2014;SH, wherein Ris a methyl group or an ethyl group, a is an integer of from 0 to 2, and b is 0 or 1.

Method for production of water/oil repellent composition and article

To provide a water and oil repellent aqueous composition which is excellent in water and oil repellency, which is less likely to cause an ending phenomenon, which is excellent in stability of a processing bath, which is excellent in storage stability of the composition and which is excellent in foam suppression properties. A water and oil repellent aqueous composition comprising a fluorinated water and oil repellent (A), an emulsified product (B) comprising a paraffin wax (such as a paraffin wax having a melting point of from 50 to 70&#xb0; C. and a penetration hardness at 25&#xb0; C. of at most 20) and a carboxyl group-containing polyethylene (such as a carboxyl group-containing polyethylene having a melting point of from 90 to 135&#xb0; C. and an acid value of from 10 to 30 mgKOH/g), and an organic acid (C).

Water and oil repellent aqueous composition

Agitation shafts provided with agitation vanes at lower portions thereof are fixed rotatably around a support cylinder to form a soft ground hardening machine. A direction control unit is provided at a lower portion of the support cylinder so as to control the direction in which the machine is inserted into and withdrawn from the soft ground. In a method of hardening the soft ground by using this machine, the direction in which the machine is inserted into and withdrawn from the soft ground is controlled as the direction in which the machine is being inserted into or withdrawn from the soft ground is measured.

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Chiyoda-ku, Japan

Kazunori Sugiyama