Abstract: A fluoropolyether group-containing compound represented by formula (1) or (2) below: wherein RSi is represented by formula (Si), and the symbols are as defined in the description —X1—SiRa1p1Rb1q1Rc1r1??(S1).

Abstract: A surface-treating agent including a component (A) which is at least one fluoropolyether group-containing compound of formula (1A) or (2A) shown below; a component (B) which is at least one fluoropolyether group-containing compound of the following formula (1B) or (2B) shown below; and a component (C) which is one or more fluorine-containing oils: Rf1A?1—XA—RA?1??(1A) RA?1—XA—Rf2A—XA—RA?1??(2A) Rf1B?2—XB—RB?2??(1B) RB?2—XB—Rf2B—XB—RB?2??(2B) wherein formulas (1A), (2A), (1B and (2B) are as defined herein.

Abstract: A fluoropolyether group-containing compound of formula (1) or (2) below: RF1—X—RSi??(1) RSi—X—RF2—X—RSi??(2) wherein RF1, RSi and RF2 are as defined herein.

Abstract: A fluoropolyether group-containing compound represented by formula (1) or (2) below: wherein RSi is represented by formula (Si), and the symbols are as defined in the description —X1—SiRa1p1Rb1q1Rc1r1??(S1).

Abstract: A surface-treating agent comprising 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, 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: 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 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: 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 process for producing a perfluoropolyether acyl fluoride which includes reducing a peroxyperfluoropolyether by using a formyl group-containing compound in the presence of a transition metal catalyst.

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 process for producing a perfluoropolyether acyl fluoride which includes reducing a peroxyperfluoropolyether by using a formyl group-containing compound in the presence of a transition metal catalyst.

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 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: Provided is a process for the production of a fluorine-containing block copolymer, which suppresses the formation of a homopolymer as a by-product and which, regardless of whether the chain transfer constant of the iodine end is large or small, achieves nearly 100% conversion into a block copolymer. The process is characterized by reacting (A) a fluorine-containing polymer which has an iodine atom or a bromine atom at either or both terminals of the backbone chain and/or at a side-chain terminal with (M) a radical-polymerizable monomer in the presence of (C) a sulfur compound represented by general formula (2): (Y1)nH2-nS2O4 (wherein Y1 is a mono- or divalent metal ion or an ammonium ion; and n is an integer of 0 to 2).

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: Provided is a process for the production of a fluorine-containing block copolymer, which suppresses the formation of a homopolymer as a by-product and which, regardless of whether the chain transfer constant of the iodine end is large or small, achieves nearly 100% conversion into a block copolymer. The process is characterized by reacting (A) a fluorine-containing polymer which has an iodine atom or a bromine atom at either or both terminals of the backbone chain and/or at a side-chain terminal with (M) a radical-polymerizable monomer in the presence of (C) a sulfur compound represented by general formula (2): (Y1)nH2-nS2O4 (wherein Y1 is a mono- or divalent metal ion or an ammonium ion; and n is an integer of 0 to 2).

Abstract: Provided is a process for the production of a fluorine-containing block copolymer, which suppresses the formation of a homopolymer as a by-product and which, regardless of whether the chain transfer constant of the iodine end is large or small, achieves nearly 100% conversion into a block copolymer. The process is characterized by reacting (A) a fluorine-containing polymer which has an iodine atom or a bromine atom at either or both terminals of the backbone chain and/or at a side-chain terminal with (M) a radical-polymerizable monomer in the presence of (C) a sulfur compound represented by general formula (2): (Y1)nH2-nS2O4 (wherein Y1 is a mono- or divalent metal ion or an ammonium ion; and n is an integer of 0 to 2).

Abstract: Provided is a process for the production of a fluorine-containing block copolymer, which suppresses the formation of a homopolymer as a by-product and which, regardless of whether the chain transfer constant of the iodine end is large or small, achieves nearly 100% conversion into a block copolymer. The process is characterized by reacting (A) a fluorine-containing polymer which has an iodine atom or a bromine atom at either or both terminals of the backbone chain and/or at a side-chain terminal with (M) a radical-polymerizable monomer in the presence of (C) a sulfur compound represented by general formula (2): (Y1)nH2-nS2O4 (wherein Y1 is a mono- or divalent metal ion or an ammonium ion; and n is an integer of 0 to 2).

Abstract: Provided is a process for the production of a fluorine-containing block copolymer, which suppresses the formation of a homopolymer as a by-product and which, regardless of whether the chain transfer constant of the iodine end is large or small, achieves nearly 100% conversion into a block copolymer. The process is characterized by reacting (A) a fluorine-containing polymer which has an iodine atom or a bromine atom at either or both terminals of the backbone chain and/or at a side-chain terminal with (M) a radical-polymerizable monomer in the presence of (C) a sulfur compound represented by general formula (2): (Y1)nH2-nS2O4 (wherein Y1 is a mono- or di-valent metal ion or an ammonium ion; and n is an integer of 0 to 2).