Abstract: A surface-treating agent including at least one perfluoro(poly)ether group containing silane compound of any of the formulae (A1), (A2), (B1), (B2), (C1) and (C2): wherein, each of symbols is as defined in the specification, and wherein a proportion of the perfluoro(poly)ether group containing silane compound having a molecular weight of 3,000 or less in the perfluoro(poly)ether group containing silane compounds of any of the above general formulae is 9 mol % or less.

Abstract: The present invention provides a perfluoro(poly)ether group containing silane compound of the formula (1): XRa?Rb?Rc???(1) wherein each symbols are as defined in the description.

Abstract: The present invention provides compound of formulae (A1), (A2), (B1), (B2), (C1) and (C2) which can form a layer having water-repellency, oil-repellency and antifouling property as well as high friction durability: wherein each symbols are as defined in the specification.

Abstract: An electronic device comprising a surface-treating layer formed on at least a part of a surface thereof, the surface-treating layer being formed of a (poly)ether group-containing silane compound represented by any of the formulae (A1), (A2), (B1), (B2), (C1), or (C2). The symbols are as defined in the description.

Abstract: A fluoro(poly)ether group-containing silane compound represented by any of the formulae (A1), (A2), (B1), (B2), (C1), or (C2). In the formulae, PFPE is each independently at each occurrence a group represented by the formula: —(OC3F6)d—, wherein the repeating unit OC3F6 of the formula includes a branched structure, and d is an integer of 2 or more and 200 or less. The symbols are as defined in the description.

Abstract: A surface-treating agent including at least one perfluoro(poly)ether group containing silane compound of the formula (1): wherein each of symbols is as defined herein, wherein a number average molecular weight of the perfluoro(poly)ether group containing silane compound is 3000 or more and 6000 or less, and wherein 80 mol % or more of the perfluoro(poly)ether group containing silane compound contained in the surface-treating agent is a compound wherein g is 2 or more.

Abstract: A surface-treating agent including at least one perfluoro(poly)ether group containing silane compound of the formula (1): wherein Rf, PFPE, Z, Q, R1, R2, X, Y, e, f, g, h and n are as defined herein. Also disclosed is a process for preparing the compound of formula (1).

Abstract: A perfluoro(poly)ether group containing silane compound represented by the formula (1a) or the formula (1b): A-Rf—X—SiQkY3-k??(1a) Y3-kQkSi—X—Rf—X—SiQkY3-k??(1b) as defined herein. Also disclosed is a process for producing the compound, a surface-treating agent containing the compound, a pellet containing the surface-treating agent and an optical member including a base material and a layer formed on a surface of the base material from the compound.

Abstract: A perfluoro(poly)ether group-containing silane compound including a structure represented by -PFPE-X—SiRakRblRcm. In an exemplary embodiment, PFPE is a perfluoro(poly)ether group, X is a substituted or unsubstituted alkylene group having 2 to 20 carbon atoms, Ra is a functional group comprising a Si, Rc is a hydrogen atom or a lower alkyl group, k is an integer of 1 to 3, l and m are an integer of 0 to 2, respectively, and the sum of k, l and m in each —SiRakRblRcm is 3. Also disclosed is a surface-treating agent containing the silane compound, a pellet containing the surface-treating agent and an article including a base material and a layer formed from the silane compound or the surface-treating agent on a surface of the base material.

Abstract: A perfluoro(poly)ether group containing silane compound represented by the formula (1a) or the formula (1b): A-Rf—X—SiQkY3-k??(1a) Y3-kQkSi—X—Rf—X—SiQkY3-k??(1b) as defined herein. Also disclosed is a process for producing the compound, a surface-treating agent containing the compound, a pellet containing the surface-treating agent and an optical member including a base material and a layer formed on a surface of the base material from the compound.

Abstract: The invention aims to provide a novel compound to be suitably used for antifouling agents. The compound of the invention is represented by the following formula (1): wherein R1 is a monovalent organic group containing a polyether chain; X1 and X2 are each individually a monovalent group; and the polyether chain is a chain represented by the following formula: —(OC6F12)m11—(OC5F10)m12—(OC4F8)m13—(OC3X106)m14—(OC2F4)m15—(OCF2)m16—, wherein m11, m12, m13, m14, m15, and m16 are each individually an integer of 0 or 1 or greater; X10s are each individually H, F, or Cl; and the repeating units are present in any order.

Abstract: A perfluoro(poly)ether group-containing silane compound represented by formula (1a) or formula (1b) (wherein the symbols are as defined in the description).

Abstract: A perfluoro(poly)ether group-containing silane compound represented by formula (A1), (A2), (B1) or (B2), wherein the symbols are as defined in the description. Also disclosed is a surface-treating agent including the silane compound, a pellet including the surface-treating agent and an article including a base material and a layer formed from the silane compound or surface-treating agent.

Abstract: A perfluoro(poly)ether group containing silane compound of formula (1a) or (1b): (Rf-PFPE)?-X—(CRakRblRcm)???(1a) (RcmRblRakC)?—X-PFPE-X—(CRakRblRcm)???(1b) wherein the symbols are as defined herein.

Abstract: The invention aims to provide a substrate whose water-repellency is less likely to be deteriorated even after long-term use in an ultraviolet-exposure environment. The substrate of the invention includes a surface-treating layer, and exhibits a static contact angle with water of 100 degrees or greater after a 400-hour accelerated weathering test performed under the following conditions: <conditions of accelerated weathering test> preparing a UVB-313 lamp exhibiting an irradiance of 0.63 W/m2 at a wavelength of 310 nm; placing the surface-treating layer of the substrate apart from the lamp by 5 cm; and after every 24-hour irradiation, wiping the surface-treating layer with a cloth impregnated with water and with a cloth impregnated with ethanol, followed by drying.

Abstract: The present invention provides a perfluoro(poly)ether group containing silane compound of (Rf-PFPE)?-X—(CRakRblRcm)???(1a) (RcmRblRakC)?—X-PFPE-X—(CRakRblRcm)???(1b) wherein the symbols are as defined in the description.

Abstract: An antifouling article including a base material, a diamond-like carbon layer and an antifouling coating layer formed of a surface-treating agent on the diamond-like carbon layer. The surface-treating agent includes a group having a carbon-carbon unsaturated bond, a group having a carbon-nitrogen unsaturated bond, or a leaving group.

Abstract: The present invention provides a novel antifouling article comprising a base material, a diamond-like carbon layer and an antifouling coating layer which is formed on the diamond-like carbon layer from a surface treating agent comprising a perfluoropolyether group-containing compound and having high acid resistant and alkaline resistant.

Abstract: The present invention provides a method for producing an antifouling film having excellent antifouling properties and rubbing resistance. The method for producing an antifouling film of the present invention includes Process (1) of applying a resin to a surface of a substrate; Process (2) of pushing the substrate to a die with the resin in between to form an uneven structure on a surface of the resin; and Process (3) of curing the resin including the uneven structure on the surface thereof to form a polymer layer. The resin contains an antifouling agent that contains a compound containing a perfluoro(poly)ether group. The die includes a surface having undergone release treatment using a release agent containing a compound that contains a perfluoro(poly)ether group, a hydrolyzable group, and a Si atom.

Abstract: An article including a base material and a layer formed from a compound represented by the following formula (1) or from a surface-treating agent comprising the compound: wherein each of symbols is as defined in the description.