Asahi Glass Company, Limited

Ag Technology Co., Ltd.

Asahi Glass Company, Linited

Kazuya Oharu

Takashi Okazoe

Seisaku Kumai

Hidekazu Okamoto

Daisuke Shirakawa

Eisuke Murotani

Ryuji Seki

Shu-zhong Wang

Kunio Watanabe

Koichi Murata

Takashige Maekawa

Isamu Kaneko

Yutaka Furukawa

Shin Tatematsu

Masao Iwaya

Kimiaki Kashiwagi

Mami Kotera

Toshihiko Toma

Masaru Nakamura

Masahiro Ito

Hirokazu Takagi

Naoko Shirota

Shunichi Samejima

Gen Kojima

Masashi Matsuo

Motoi Kamba

Kengo Kawahara

Masazumi Nagai

Gen Ogawa

Masayuki Miyazaki

Shigeki Kobayashi

Taiki Hoshino

Tomoyuki Fujita

Yuriko Kaida

Norihide Sugiyama

Hiroki Kamiya

Masaaki Tsuzaki

Shinji Wada

Shinya Higuchi

Yoshitomi Morizawa

Hiroki Nagai

Shoji Furuta

Kazuhiko Hayashi

Keiichi Ohnishi

Hiroshi Funaki

Ikuo Matsukura

Osamu Yokokoji

Shuichiro Sugimoto

Toyomichi Shimada

Shunsuke Yokotsuka

Nobuyuki Kasahara

Masakuni Sato

Toru Shimoyama

Kenroh Kitamura

Toru Ueno

Masataka Arai

Michino Ikehata

Shuzhong Wang

Minako Shindo

Shinsuke Kaga

Minako Ishikawa

Tomoko Sakaguchi

The present invention relates to a method for producing a carbonate compound and methacrylic acid or an ester thereof, containing a step (a1) of obtaining hexachloroacetone and hydrogen chloride from acetone and chlorine molecule, a step (a2) of obtaining a dialkyl carbonate and chloroform from hexachloroacetone and an alkyl alcohol, a step (b1) of obtaining 1,1,1-trichloro-2-methyl-2-propanol from chloroform and acetone, a step (b2+b3 or b4) of obtaining methacrylic acid or an ester thereof and hydrogen chloride from 1,1,1-trichloro-2-methyl-2-propanol and water or an alcohol, and a step (c1 or c2) of obtaining chlorine molecule by reacting hydrogen chloride with oxygen molecule.

Production method for carbonate compound and methacrylate or ester thereof

The present invention relates to producing a disulfonyl fluoride compound easily and efficiently by utilizing coupling reaction where a compound (2) is obtained by subjecting a compound (1) wherein Y is a fluorine atom to photocoupling reaction, or subjecting a compound (1) wherein Y is a hydroxyl group, &#x2014;OMwherein Mis an alkali metal atom, or &#x2014;O(M)wherein Mis an alkaline earth metal atom to electrolytic coupling reaction, and derivatives such as the following compound (7A) are obtained from the compound (2):FSO-E-CX&#x2014;COY&#x2003;&#x2003;(1)FSO-E-CX&#x2014;CX-E-SOF&#x2003;&#x2003;(2) wherein E is a single bond, &#x2014;O&#x2014;, a Calkylene group which may contain an etheric oxygen atom, or the like, X is a fluorine atom or the like, and Y is a fluorine atom, a hydroxyl group, or the like.

Method for producing disulfonyl fluoride compound

To provide an ether composition containing no &#x2014;OCFO&#x2014; structure, having a low viscosity and being excellent in chemical stability in a wide temperature range. An ether composition comprising a polyether compound (A) containing at least two &#x2014;(OCFCF)&#x2014; units, containing no &#x2014;OCFO&#x2014; structure and having an average molecular weight of higher than 2,000 and at most 20,000, and an ether compound (B) containing at least one &#x2014;(OCFCF)&#x2014; unit and having an average molecular weight of at most 2,000.

Ether composition and solution composition

The current invention relates to a fluorinated elastomer latex containing an aqueous medium, a fluorinated elastomer dispersed in the aqueous medium in an amount of from 10 to 60 mass % and a fluorinated emulsifier represented by the formula (1): CFO(CFCFO)CFCOOA (wherein A is a hydrogen atom, an alkali metal or NH, and m is an integer of from 1 to 3), which employs no perfluorooctanoate emulsifier and which is excellent in dispersion stability of the fluorinated elastomer.

Fluorinated elastomer latex, its production method, fluorinated elastomer and fluororubber molded product

It is to provide a compound which has a low vapor pressure and low viscosity, which is less problematic in deterioration during its use and which is useful as e.g. a lubricant, a surface modifier or a surfactant. A fluoropolyether compound represented by the formula (X&#x2014;)Y(&#x2014;Z), wherein X is a group represented by the formula HO&#x2014;(CHCHO)a.(CHCH(OH)CHO)&#x2014;(CH)&#x2014;CFO(CFCFO)&#x2014; (wherein 'a' is an integer of from 0 to 100, b is an integer of from 0 to 100, c is an integer of from 1 to 100, and d is an integer of from 1 to 200), Z is a group represented by the formula RO(CFCFO)&#x2014; (wherein Ris e.g. a Cperfluoroalkyl group having an etheric oxygen atom inserted between carbon-carbon atoms, and g is an integer of from 3 to 200), Y is e.g. a (x+z) valent perfluorinated saturated hydrocarbon group, x is an integer of at least 2, z is an integer of at least 0, and (x+z) is an integer of from 3 to 20.

Fluoropolyether compound

To provide a novel fluoroadamantane derivative, a novel polymerizable fluoroadamantane derivative and a novel fluoropolymer, and processes for production thereof. To provide the following compound (3), the following compound (4), a polymer obtained by polymerizing the compound (4) and processes for production thereof: provided that Q represents &#x2014;CHF&#x2014; or &#x2014;CF&#x2014; (provided that six Qs may be the same or different), Z represents &#x2014;H, &#x2014;F or &#x2014;CHOH (provided that three Zs may be the same or different), W represents &#x2014;H or a Chydrocarbon group, R represents &#x2014;H, &#x2014;F, &#x2014;CHor &#x2014;CF, and J represents &#x2014;H, &#x2014;F, &#x2014;CHWOH or &#x2014;CHWOCOCR&#x2550;CH(provided that three Js may be the same or different).

Fluoroadamantane derivative, fluorine-containing polymer and production method

A process for producing hexafluoropropylene oxide, which comprises contacting a reaction product containing hexafluoropropylene oxide obtained by reacting hexafluoropropylene with oxygen, with at least one adsorbent selected from activated carbon and the following metal oxides, wherein the metal oxides are oxides of at least one metal selected from Groups 1 and 2 of the Periodic Table, Zr and Si.

Process for producing hexafluoropropylene oxide

The present invention provides a process for producing compounds useful as raw materials for various fluororesins in high yields in few steps from inexpensive and readily available starting materials. The following compound (1) and the following compound (2) are reacted to form the following compound (3), then the compound (3) is fluorinated in a liquid phase to form the following compound (4), and the ester bonds in the compound (4) are dissociated to form the compound (5), or the compound (5) and the compound (6).HOCH-Q-O&#x2014;(CH)&#x2014;OH&#x2003;&#x2003;(1),CRCOX&#x2003;&#x2003;(2),RCOOCH-Q-O&#x2014;(CH)&#x2014;OCOR&#x2003;&#x2003;(3),RCOOCF-Q-O&#x2014;(CF)&#x2014;OCOR&#x2003;&#x2003;(4),FCO-Q-O&#x2014;(CF)&#x2014;COF&#x2003;&#x2003;(5),RCOF&#x2003;&#x2003;(6).

Process for producing perfluorodiacyl fluorinated compounds

The present invention provides a process A1 for producing a compound (5A), which comprises fluorinating a compound (3A-1) by liquid phase fluorination to a compound (4A-1), followed by a decomposition reaction of an ester bond; a process A2 for producing a compound (5A), which comprises fluorinating a compound (3A-2) by liquid phase fluorination to a compound (4A-2), followed by a decomposition reaction of an ester bond; and a process B for producing a compound (5B), which comprises fluorinating a compound (3B) by liquid phase fluorination to a compound (4B), followed by hydrolysis or alcoholysis. Further, the present invention provides a compound (5A) wherein n is 2 to 4, and a compound (5B) wherein n is 3 or 4.A(&#x2014;CH&#x2014;OCO&#x2014;R)&#x2003;&#x2003;(3A-1)A(&#x2014;CF&#x2014;OCO&#x2014;R)&#x2003;&#x2003;(4A-1)A(&#x2014;COOR)&#x2003;&#x2003;(3A-2)A(&#x2014;COOR)&#x2003;&#x2003;(4A-2)A(&#x2014;COF)&#x2003;&#x2003;(5A)A(&#x2014;OCO&#x2014;R)&#x2003;&#x2003;(3B)A(&#x2014;OCO&#x2014;R)&#x2003;&#x2003;(4B)A(&#x2014;OH)&#x2003;&#x2003;(5B)provided that the carbon atom in adamantane to which &#x2014;OCO&#x2014;Ris bonded, is a tertiary carbon atom, A is a n-valent group having n hydrogen atoms in adamantane converted to connecting bonds, R is a fluorinated monovalent organic group, n is an integer of from 1 to 4, Ais a group having at least one of hydrogen atoms in the group A substituted by a fluorine atom, and Ris a fluorinated monovalent organic group.

Fluorinated adamantane and its derivatives

A pellicle which is excellent in transmittance and durability against short wavelength light, and which can be used for photolithography by using e.g. a KrF excimer laser, is provided. A pellicle for exposure to a light having a wavelength of at most 200 nm, which comprises a frame and a pellicle membrane bonded to the frame by means of an adhesive, wherein the pellicle membrane and/or the adhesive comprises a polymer containing repeating units represented by the following formula (1): wherein Q represents a Cpolyfluoroalkylene group having a linear structure, or a group having at least one atom selected from hydrogen atoms and fluorine atoms in such a polyfluoroalkylene group substituted by a substituent comprising a polyfluoroalkyl group which may contain an ethereal oxygen atom, or the like, and X represents a hydrogen atom, a fluorine atom or a Cpolyfluoroalkyl group which may contain an ethereal oxygen atom.

Ultraviolet transmitting fluoropolymer and pellicle comprising said polymer

A compound represented by the formula A(&#x2014;COF), provided that Aand n have the following meanings. A: a fluorinated adamantane residue which is an n-valent group having an n number of hydrogen atoms removed from adamantane (provided that when n is at least 2, the removed hydrogen atoms are hydrogen atoms bonded to different carbon atoms), wherein at least one of the remaining hydrogen atoms is substituted by a fluorine atom, and the remaining hydrogen atoms may be substituted by a Calkyl group or fluoroalkyl group, and

Fluorinated adamantane derivative

A novel fluorinated ether compound useful as an inert medium is provided. The compound is represented by the following formula (1) such as the compound represented by the following formula (1a) or the compound represented by the following formula (1b):ROCFRCFROR&#x2003;&#x2003;(1)F(CF)OCF(CF)CF(CF)O(CF)F &#x2003;&#x2003;(1a)F(CF)OCF(CF)CF(CF)O(CF)F &#x2003;&#x2003;(1b)wherein the symbols have the following meanings:

Fluorinated ether compound

A novel perfluoropolyether derivative which is less likely to undergo decomposition, which is free from a problem of deterioration during its use, and which is useful as a lubricating oil or a coating agent, is provided. A compound represented by the following formula (1):HO&#x2014;(CHCHO). (CHCH(OH)CHO)&#x2014;CHCFO(CFCFO)CFCHO&#x2014;&#x2014;(CHCH(OH)CHO). (CHCHO)&#x2014;H &#x2003;&#x2003;Formula (1)wherein m represents an integer of from 3 to 200, and each of p, q, r and s which are independent of one another, represents an integer of from 0 to 100, provided that when each of p, q, r and s which are independent of one another, is an integer of at least 1, the arrangement of &#x2014;(CHCHO)&#x2014; and &#x2014;(CHCH(OH)CHO)&#x2014; units is not particularly limited, and when one of r and p is an integer of at least 2 and the other is an integer of at least 1, or when one of q and s is an integer of at least 2 and the other is an integer of at least 1, these units may be arranged in a block form or at random.

Perfluoropolyether derivative

The present invention provides a process for producing compounds useful as raw materials for various fluororesins in high yields in few steps from inexpensive and readily available starting materials. The following compound (1) and the following compound (2) are reacted to form the following compound (3), then the compound (3) is fluorinated in a liquid phase to form the following compound (4), and the ester bonds in the compound (4) are dissociated to form the compound (5), or the compound (5) and the compound (6).HOCH-Q-O&#x2014;(CH)&#x2014;OH,&#x2003;&#x2003;(1)CRCOX,&#x2003;&#x2003;(2)RCOOCH-Q-O&#x2014;(CH)&#x2014;OCOR,&#x2003;&#x2003;(3)RCOOCF-Q-O&#x2014;(CF)&#x2014;OCOR,&#x2003;&#x2003;(4)FCO-Q-O&#x2014;(CF)&#x2014;COF,&#x2003;&#x2003;(5)RCOF.&#x2003;&#x2003;(6)

A novel perfluoropolyether derivative which is less likely to undergo decomposition, which is free from a problem of deterioration during its use, and which is useful as a lubricating oil or a coating agent, is provided. A compound represented by the following formula (1):HO&#x2014;(CHCHO).(CHCH(OH)CHO)&#x2014;CHCFO(CFCFO)CFCHO&#x2014;&#x2014;(CHCH(OH)CHO).(CHCHO)&#x2014;H&#x2003;&#x2003;Formula (1)wherein m represents an integer of from 3 to 200, and each of p, q, r and s which are independent of one another, represents an integer of from 0 to 100, provided that when each of p, q, r and s which are independent of one another, is an integer of at least 1, the arrangement of &#x2014;(CHCHO)&#x2014; and &#x2014;(CHCH(OH)CHO)&#x2014; units is not particularly limited, and when one of r and p is an integer of at least 2 and the other is an integer of at least 1, or when one of q and s is an integer of at least 2 and the other is an integer of at least 1, these units may be arranged in a block form or at random.

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Yokohama, Japan

Kazuya Oharu