Daikin Industries, Ltd.

Masatoshi Nose

Tsuneo Yamashita

Hisashi Mitsuhashi

Atsushi Suzuki

Kaori Ozawa

Kenichi Katsukawa

Kazuhiro Takahashi

Takashi Shibanuma

Takehiro Chaki

Akinari Sugiyama

Takashi Namikawa

Eiji Sakamoto

Yosuke Kishikawa

Daisuke Karube

Kenji Adachi

Tomohiro Yoshida

Saya Nii

Yuzo Komatsu

Sumi Ishihara

Takashi Nomura

Tatsuya Ohtsuka

Atsushi Shirai

Masato Naitou

Atsushi Maruo

Masayuki Kishimoto

Shinya Takano

Kensuke Mohara

Asako Yoshiyama

Yuuki Yamamoto

Makoto Suyama

Yousuke Kishikawa

Yuusuke Watanabe

Peter Hupfield

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.(Rf-PFPE)-X&#x2014;(SiRRR)&#x2003;&#x2003;(A1)(RRRSi)&#x2014;X-PFPE-X&#x2014;(SiRRR)&#x2003;&#x2003;(A2)(Rf-PFPE)-X&#x2014;(CRRRR)&#x2003;&#x2003;(B1)(RRRRC)&#x2014;X-PFPE-X&#x2014;(CRRRR)&#x2003;&#x2003;(B2)

Silane compound containing perfluoro (poly ) ether group

A compound represented by the following formula (1): wherein Ris a monovalent organic group containing a polyether chain; Xand Xare each individually a monovalent group; and the polyether chain is a chain represented by the following formula: &#x2014;(OCF)&#x2014;(OCF)&#x2014;(OCF)&#x2014;(OCX)&#x2014;(OCF)&#x2014;(OCF)&#x2014;, wherein m11, m12, m13, m14, m15, and m16 are each individually an integer of 0 or 1 or greater; Xs are each individually H, F, or Cl; the repeating units are present in any order; and the sum of m11 to m16 is an integer of 10 or greater, Rbeing other than those containing a urethane bond.

Compound having isocyanuric skeleton and composition in which said compound is included

A surface-treating agent including a perfluoro(poly)ether group-containing silane compound and a perfluoro(poly)ether group-containing compound. The perfluoro(poly)ether group-containing compound contains a radical capturing group or a UV absorbing group in the molecule.

Surface-treating agent comprising perfluoro(poly)ether group-containing compound

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:

Water-repellent substrate

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 Ris a monovalent organic group containing a polyether chain; Xand Xare each individually a monovalent group; and the polyether chain is a chain represented by the following formula: &#x2014;(OCF)&#x2014;(OCF)&#x2014;(OCF)&#x2014;(OCX)&#x2014;(OCF)&#x2014;(OCF)&#x2014;, wherein m11, m12, m13, m14, m15, and m16 are each individually an integer of 0 or 1 or greater; Xs are each individually H, F, or Cl; and the repeating units are present in any order.

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.

Surface treating agent including perfluoro(poly)ether-group-containing silane compound

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

An object of the present invention is to provide a production method that makes it possible to produce 1,1-dibromo-1-fluoroethane easily and sustainably. The present invention provides a method for producing 1,1-dibromo-1-fluoroethane, the method comprising step A of reacting 1,1-dibromoethylene with hydrogen fluoride to obtain 1,1-dibromo-1-fluoroethane.

Method for producing 1,1-dibromo-1-fluoroethane

The present invention provides a process for preparing at least one chlorine-containing fluorocarbon compound selected from the group consisting of chlorine-containing fluoropropane compounds represented by Formula (1): CFClCHClCHCl, wherein n is 1 or 2, and chlorine-containing fluoropropene compounds represented by Formula (2): CFClCCl&#x2550;CH, wherein n is 1 or 2, wherein the process includes the step of contacting at least one chlorine-containing compound selected from the group consisting of 1,1,1,2,3-pentachloropropane, 1,1,2,3-tetrachloropropene, and 2,3,3,3-tetrachloropropene with hydrogen fluoride in the absence of a catalyst while heating. According to the present invention, the chlorine-containing propane and propene compounds having 1 or 2 fluorine atoms can be prepared by an industrially applicable, simple and effective process.

Process for preparing chlorine-containing fluorocarbon compound

The present invention aims in a method wherein tetrachloroethylene (PCE) is reacted with HF in a gas phase in the presence of a catalyst to obtain pentafluoroethane (HFC-125), to reduce production of undesirable by-products and maintain a catalytic activity at a high level over a long period of time while achieving a high conversion ratio of PCE and suppressing deterioration of the catalyst. In a method for producing pentafluoroethane wherein tetrachloroethylene is reacted with HF in a gas phase in the presence of a catalyst to obtain pentafluoroethane, characterized in that chromium oxyfluoride is disposed in a reactor as the catalyst, and oxygen is fed into the reactor together with tetrachloroethylene and HF, at a amount of 0.4-1.8% by mole with respect to tetrachloroethylene.

Method for producing pentafluoroethane

The present invention provides a process for preparing 1,1,2,3-tetrachloropropene, including heating 1,1,1,2,3-pentachloropropane in a gas phase in the absence of a catalyst to carry out a dehydrochlorination reaction. According to the process of the present invention, 1,1,2,3-tetrachloropropene (HCC-1230xa) can be efficiently produced by a simple and economically advantageous method that is suitable for industrial-scale production.

Process for preparing 1,1,2,3-tetrachloropropene

The present invention provides a process for preparing at least one chlorine-containing fluorocarbon compound selected from the group consisting of chlorine-containing fluoropropane compounds represented by Formula (1): CFClCHClCH&#x2014;Cl, wherein n is 1 or 2, and chlorine-containing fluoropropene compounds represented by Formula (2): CFClCCl&#x2550;CH, wherein n is 1 or 2, wherein the process includes the step of contacting at least one chlorine-containing compound selected from the group consisting of 1,1,1,2,3-pentachloropropane, 1,1,2,3-tetrachloropropene, and 2,3,3,3-tetrachloropropene with hydrogen fluoride in the absence of a catalyst while heating. According to the present invention, the chlorine-containing propane and propene compounds having 1 or 2 fluorine atoms can be prepared by an industrially applicable, simple and effective process.

The present invention provides a method for efficiently preparing 2,3,3,3-tetrafluoropropene (HFO-1234yf) by a simple and economically advantageous method that is suitable for implementation on an industrial scale. The present invention provides a process for preparing 2,3,3,3-tetrafluoropropene, comprising the step of: (1) in a reactor, (1-1) reacting 1,1,1,2,3-penta-chloropropane with hydrogen fluoride in an amount of 10 to 100 mol per mole of the 1,1,1,2,3-pentachloropropane 1; (1-2) in the presence of chromic oxide represented by composition formula: CrOm (1.5&#x3c;m&#x3c;3) or fluorinated chromic oxide obtained by fluorinating the chromic oxide; (1-3) in the presence of oxygen in an amount of 0.02 to 1 mol per mole of the 1,1,1,2,3-pentachloropropane; and (1-4) in the gas phase within a temperature range of 320 to 390 degrees centigrade, thereby obtaining a reaction product containing 2,3,3,3-tetrafluoropropene.

Process for preparing 2,3,3,3-tetrafluoropropene

The present invention provides a process for preparing 2-chloro-3,3,3-trifluoropropene including subjecting, in the absence of a catalyst, at least one chlorine-containing compound selected from the group consisting of chloropropane represented by formula (1): CClXCHClCHCl, wherein each X is the same or different and each represents Cl or F, chloropropene represented by formula (2): CClYCCl&#x2550;CH, wherein each Y is the same or different and each represents Cl or F, and chloropropene represented by formula (3): CZ&#x2550;CClCHCl, wherein each Z is the same or different and each represents Cl or F, to a reaction with hydrogen fluoride under heating in a gas phase. According to the present invention, 2-chloro-3,3,3-trifluoropropene (HCFC-1233xf) can be effectively prepared by an easy and economically advantageous process that is suitable for industrial scale production.

Process for preparing 2-chloro-3,3,3-trifluoropropene

The present invention provides an effective, selective, and industrially applicable process for producing 2,3,3,3-tetrafluoropropene. Specifically, the present invention provides a process for producing 2,3,3,3-tetrafluoropropene including reacting 2-chloro-3,3,3-trifluoropropene with hydrogen fluoride in the presence of oxygen and a catalyst comprising chromium oxide represented by the composition formula: CrOm (1.5&#x3c;m&#x3c;3), or fluorinated chromium oxide obtained by fluorinating the chromium oxide.

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Settsu, Japan

Masatoshi Nose