From Fluorine-containing Reactant Patents (Class 528/401)
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Patent number: 8236195Abstract: A fluorine-containing curable composition containing (A) A fluorine-containing amino compound having primary or secondary amino groups at both ends, said compound being represented by the formula (1): Y-Q-Rf—(X—Rf)n-Q-Y??(1) wherein Rf is a divalent perfluorooxyalkylene group, each Q is independently a divalent organic group having 1 to 20 carbon atoms and, optionally, containing an oxygen atom and/or a nitrogen atom, X is a divalent organic group having 1 to 20 carbon atoms and, optionally, containing an oxygen atom and/or a nitrogen atom, Y is an organic group having a primary or secondary amino group and 1 to 20 carbon atoms and, optionally, containing an oxygen atom, and n is an integer of from 1 to 20, (B) An epoxy compound having at least two epoxy groups in a molecule, in an amount such that the amount of the epoxy groups is 0.Type: GrantFiled: January 9, 2009Date of Patent: August 7, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yasunori Sakano, Noriyuki Koike
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Patent number: 8236990Abstract: The present invention relates to triarylamine compounds, compositions comprising such compounds, and electronic devices and applications comprising at least one layer containing at least one of the new compounds. The compounds can be used as monomers to create homopolymers or copolymers.Type: GrantFiled: April 7, 2009Date of Patent: August 7, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Eric Maurice Smith, Nora Sabina Radu, Norman Herron, Arthur Dabrowski, Frederick P. Gentry, Gene M. Rossi, Gary A. Johansson
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Patent number: 8236213Abstract: A process for producing a perfluoropolymer, the process including extruding a polymer obtained by polymerizing a perfluoromonomer to prepare strands, and bringing a gas comprising from 3 to 50 volume % of fluorine gas into contact with the strands; the process being conducted on an apparatus that includes an extruder for melting and extruding the polymer obtained by polymerizing a perfluoromonomer, a die having a plurality of pores for preparing the strands from the molten polymer extruded, and a fluorination tank for bringing the gas comprising from 3 to 50 volume % of fluorine gas into contact with the strands.Type: GrantFiled: May 15, 2008Date of Patent: August 7, 2012Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Noriaki Miyaki, Fusaaki Takeo, Satoshi Shiratori
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Publication number: 20120148875Abstract: A magnetic disk with which further reduction of magnetic spacing can be realized and which has high reliability under such circumstances of a lower floating amount of a magnetic head involved in the recent rapid increase in recording density and of extremely severe environmental resistance involved in diversification in use applications is provided.Type: ApplicationFiled: June 22, 2011Publication date: June 14, 2012Applicant: WD MEDIA (SINGAPORE) PTE. LTD.Inventors: Katsushi Hamakubo, Kae Itoh, Koichi Shimokawa
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Patent number: 8198394Abstract: A membrane-electrode assembly for polymer electrolyte fuel cells which is excellent in water repellency and gas diffusivity and which exhibits a high output power density, can be obtained by using, as an electrolyte material for polymer electrolyte fuel cells, a fluoropolymer obtained by contacting a fluoropolymer which is excellent in gas diffusivity and which has alicyclic structures in its main chain and further has sulfonic acid groups, with fluorine gas for fluorination to increase water repellency and stabilize the molecule ends.Type: GrantFiled: April 28, 2009Date of Patent: June 12, 2012Assignee: Asahi Glass Company, LimitedInventors: Jun-ichi Tayanagi, Atsushi Watakabe, Susumu Saito, Katsuya Ueno
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Patent number: 8193294Abstract: The present invention relates to hyperbranched copolymer networks containing hyperbranched copolymers that have perfluorocarbon and organosilicon entities that have high hydrophobicity, or high oleophobicity, or high thermal stability, or good adhesion to substrates, or any combinations thereof. This invention provides a further desirable combination of properties that include solubility before crosslinking, chemical resistance, and easy processibility. The copolymers may be crosslinked with a variety of crosslinking agents to give either rigid or elastomeric networks.Type: GrantFiled: March 24, 2009Date of Patent: June 5, 2012Assignee: Michigan Molecular InstituteInventors: Jin Hu, Quiyun Xu, Rakesh Sachdeva, Dale J. Meier, Robert M. Nowak, Petar R. Dvornic
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Patent number: 8168742Abstract: To provide a crosslinkable fluorinated aromatic prepolymer which is capable of forming a cured product having a low relative permittivity, high heat resistance, low birefringence and high flexibility, and its uses.Type: GrantFiled: December 4, 2009Date of Patent: May 1, 2012Assignee: Asahi Glass Company, LimitedInventors: Shunsuke Yokotsuka, Masahiro Ito, Kaori Tsuruoka
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Patent number: 8158275Abstract: Fluorinated compounds of the invention are represented by the following general formula (I): (in formula (I), Ar1 and Ar2 each independently represent a C10 or greater aromatic hydrocarbon or C4 or greater heterocyclic group, R1 represents hydrogen or a monovalent substituent, R2 and R3 each independently represent a monovalent substituent, and s1 and t1 each independently represent an integer of 0 or greater. When s1 is 2 or greater, the multiple R2 groups may be the same or different, and when t1 is 2 or greater the multiple R3 groups may be the same or different.Type: GrantFiled: February 22, 2007Date of Patent: April 17, 2012Assignees: Osaka University, Sumitomo Chemical Company, LimitedInventors: Yutaka Ie, Yoshio Aso, Masashi Nitani, Masato Ueda
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Patent number: 8153756Abstract: Disclosed is a fluorine-containing polymer having: (A) a repeating unit derived from a fluorine-containing monomer which is represented by the following formula: CH2?C(—X)—C(?O)—Y—[—(CH2)m—Z—]p—(CH2)n—Rf??(I) (B) a repeating unit derived from a monomer containing no fluorine atom, and if necessary (C) a repeating unit derived from a crosslinkable monomer. This fluorine containing polymer has excellent water repellency, oil repellency and antifouling property.Type: GrantFiled: September 23, 2008Date of Patent: April 10, 2012Assignee: Daikin Industries, Ltd.Inventors: Ikuo Yamamoto, Yutaka Ohira, Yoshio Funakoshi, Shinichi Minami, Ginjiro Tomizawa
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Patent number: 8143359Abstract: The purpose of the present invention is to provide an organic silicon compound which has a vinyl group more reactive than those of the conventional organic silicon compounds and can be bonded with another compound. The present organic silicon compound is represented by the following formula (1), wherein R1 is, independently of each other, a vinyl group or an alkyl group having 1 to 4 carbon atoms, R2 is an alkylene group having 3 to 6 carbon atoms, and R3 is, independently of each other, a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and optionally substituted with one or more fluorine atoms.Type: GrantFiled: November 18, 2009Date of Patent: March 27, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Noriyuki Koike, Takashi Matsuda, Hirofumi Kishita
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Patent number: 8143369Abstract: A one pot method of preparing cyclic carbonyl compounds comprising an active pendant pentafluorophenyl ester group is disclosed. The cyclic carbonyl compounds can be polymerized by ring opening methods to form ROP polymers comprising repeat units comprising a side chain pentafluorophenyl ester group. Using a suitable nucleophile, the pendant pentafluorophenyl ester group can be selectively transformed into a variety of other functional groups before or after the ring opening polymerization.Type: GrantFiled: April 30, 2010Date of Patent: March 27, 2012Assignees: International Business Machines Corporation, Central Glass Co., LtdInventors: Masaki Fujiwara, James Lupton Hedrick, Daniel Paul Sanders, Yoshiharu Terui, Manabu Yasumoto
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Patent number: 8138257Abstract: Novel aromatic AB2 imide monomer with thermally reactive trialkylsiloxy and aryl fluoride moieties, which can be polymerized to form hyperbranched aromatic polyimides in the presence of a metal fluoride catalyst. Nanoclay composites were generated by either (i) direct blending of a preformed hyperbranched aromatic polyimide and Closite nanoclay (?20 wt %) or (ii) blending of the AB2 monomer, CsF catalyst and Closite nanoclay (?20 wt %) followed by thermal solid-state polymerization of the AB2 monomer homogeneously dispersed in the nanoclay.Type: GrantFiled: February 19, 2010Date of Patent: March 20, 2012Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Loon-Seng Tan, David H. Wang
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Publication number: 20120059144Abstract: A process for purifying a polyol(per)fluoropolyether derivative [polyol (P)] from a mixture (M) of hydroxyl(per)fluoropolyether derivatives, such polyol (P) comprising one or more hydroxyl(per)fluoropolyether derivatives [PFPEs (OH)] comprising at least one (per)fluoropolyoxyalkylene chain (chain Rf) and at least one end-group having formula (t3): —CF2CH2OCH2CH(OH)CH2OCH2CH(OH)CH2OH, such mixture (M) comprising said polyol (P) and at least one hydroxyl(per)fluoropolyether derivative [PFPE (OH)] different from polyol (P) and comprising at least one chain Rf and at least one end-group selected from end-groups having formula (t1): —CF2CH2OH and formula (t2): —CF2CH2OCH2CH(OH)CH2OH.Type: ApplicationFiled: May 6, 2010Publication date: March 8, 2012Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Claudio Adolfo Pietro Tonelli, Graziano Giuseppe Vezzulli, Rosaldo Picozzi, Piero Gavezotti
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Patent number: 8129435Abstract: The present invention relates to a perfluoropolyether-modified polysiloxane represented by general formula (1): wherein Rf is a linear or branched perfluoroalkyl group having 1 to 10 carbon atoms; X is a fluorine atom or a trifluoromethyl group; Q is a divalent organic group having 1 to 12 carbon atoms; R1, R2, and R3 are, independently of each other, an alkyl group having 1 to 10 carbon atoms or an aryl group; a, b, c, and d are, independently of each other, an integer of from 0 to 200, provided that a total of a, b, c and d is 1 or larger; e is an integer of 0 or 1; and z is an integer of from 5 to 100; a method for preparing the same; and a defoaming agent comprising the same.Type: GrantFiled: June 17, 2010Date of Patent: March 6, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiromasa Yamaguchi, Noriyuki Koike, Kazuyuki Takewaki
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Patent number: 8119765Abstract: A crosslinkable fluorine-containing compound, which is an adduct compound having a crosslinkable group, wherein the adduct compound is an adduct of a fluorine-containing compound having, per molecule, 2 or more terminal fluorine-containing vinyl groups each directly bonded to an oxygen atom, and a compound having 2 or more groups represented by —XH, where X represents an oxygen atom or a sulfur atom.Type: GrantFiled: April 9, 2008Date of Patent: February 21, 2012Assignee: Fujifilm CorporationInventor: Takayuki Ito
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Patent number: 8101708Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.Type: GrantFiled: January 7, 2011Date of Patent: January 24, 2012Inventors: Dillip K. Mohanty, Ajit Sharma
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Patent number: 8097673Abstract: An aqueous fluoropolymer dispersion comprising an aqueous medium, fluoropolymer particles, and an amine oxide surfactant. Coagulated fluoropolymer resin is produced from the dispersion by adding an acidic reagent in sufficient amount to cause coagulation and separation of the coagulated fluoropolymer resin from the aqueous medium. Another particulate component such as particular polymer, filler, pigment, solid lubricant, etc., may be added to the dispersion and co-coagulated to form a mixture of coagulated fluoropolymer resin and particulate component.Type: GrantFiled: April 29, 2011Date of Patent: January 17, 2012Assignee: E. I. du Pont de Nemours and CompanyInventor: Clay Woodward Jones
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Publication number: 20120009419Abstract: Embodiments of this invention are directed to substituted polyaniline nanofibers and methods of synthesizing and using the same. The invention is also directed to polyaniline derivatives that can be synthesized without the need for templates or functional dopants by using an initiator as part of a reaction mixture.Type: ApplicationFiled: July 12, 2011Publication date: January 12, 2012Applicant: The Regents of the University of CaliforniaInventors: Henry Hiep D. Tran, Richard B. Kaner
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Patent number: 8067528Abstract: The present invention provides a method of producing a fluoropolymer, wherein polymerization using a carboxylate ester bond-containing carboxylic acid derivative as a surfactant in an aqueous medium to give the fluoropolymer is conducted, the above carboxylate ester bond-containing carboxylic acid derivative has a carboxylate ester bond and —COOM (M representing H, NH4, Li, Na or K), the above carboxylate ester bond may optionally be substituted by fluorine atom.Type: GrantFiled: May 26, 2010Date of Patent: November 29, 2011Assignee: Daikin Industries, Ltd.Inventors: Nobuhiko Tsuda, Yoshihiro Yamamoto, Yoshinori Nanba, Yasuhiko Sawada, Tetsuo Shimizu
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Patent number: 8043722Abstract: An optionally substituted oligomer or polymer comprising a repeat unit of formula (I); wherein each Ar1 and Ar3 is the same or different and independently represents an optionally substituted aryl or heteroaryl; n is at least 1; Ar2 represents an optionally substituted aryl or heteroaryl comprising a linking ring to which the two nitrogen atoms are both directly linked; and at least one of Ar2 and either or both of Ar1 is substituted with at least one substituent.Type: GrantFiled: December 13, 2004Date of Patent: October 25, 2011Assignee: Merck Patent GmbHInventors: Paul Wallace, Carl Towns
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Publication number: 20110256424Abstract: A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include a terminal section and a midsection. The terminal section includes at least one surface active functional group. The midsection includes at least one perfluoroethyl ether unit. The middle portion includes at least one perfluorobutyl ether unit.Type: ApplicationFiled: April 15, 2010Publication date: October 20, 2011Applicant: Hitachi Global Storage Technologies Netherlands B.V.Inventors: John M. Burns, Hong Deng, Xing-Cai Guo, Bruno Marchon, Daryl J. Pocker, Robert Waltman
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Patent number: 8026316Abstract: To provide a process for efficiently producing a perfluoropolymer having unstable terminal groups reduced. A process for producing a fluorination-treated perfluoropolymer, which comprises melting a thermoplastic perfluoropolymer to form strands and contacting the polymer strands with a fluorine gas. For fluorination-treatment of the perfluoropolymer, an apparatus 10 is used, which comprises a melt extruder 11 for melting and extruding the perfluoropolymer, a die 12 for forming the melt extruded polymer into continuous strands 1 and a fluorination tank 13 for contacting the continuous strands 1 with a fluorine gas.Type: GrantFiled: November 12, 2009Date of Patent: September 27, 2011Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Noriaki Miyake
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Publication number: 20110230636Abstract: An improved process for emulsion polymerization of fluoropolymers, such as polytetrafluoroethylene, employs reduced amounts of fluorinated emulsifiers. The addition of europium III chloride facilitates emulsion polymerization of fluoropolymers having comparable quality to those fluoropolymers made using conventional processes employing greater amounts of environmentally undesirable fluorinated emulsifiers.Type: ApplicationFiled: March 22, 2011Publication date: September 22, 2011Inventor: Zancy VonHooks
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Patent number: 8013096Abstract: The present invention relates to a perfluoropolyoxyalkylene group-containing polymer represented by the following formula (1), wherein Rf is a group having a perfluoropolyoxyalkylene group; W1 is a divalent organosiloxane group having at least one group represented by the following formula (2); W2 is a monovalent group selected from an alkyl group, an alkenyl group, an alkenyloxyalkyl group, an aryl group and an organosiloxane group represented by the following formula (3), and the combinations thereof, the monovalent group having 1 to 300 carbon atoms and being optionally substituted with one or more fluorine atoms; Q is, independently of each other, a divalent linking group having 2 to 12 carbon atoms, optionally containing one or more oxygen atoms, nitrogen atoms, or fluorine atoms; and p is an integer of from 1 to 20, wherein X is a hydrolysable group; R1 is an alkyl group having 1 to 4 carbon atoms or a phenyl group; y is an integer of from 1 to 5; and a is 2 or 3, wherein, R2 aType: GrantFiled: July 29, 2009Date of Patent: September 6, 2011Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yuji Yamane, Noriyuki Koike, Hirofumi Kishita
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Patent number: 7990617Abstract: The present invention discloses an optical laminate comprising a light-transparent base material and a low-refractive index layer provided on the light-transparent base material, the low-refractive index layer simultaneously having both contamination preventive properties and slipperiness. The optical laminate comprises a light-transparent base material, and a hard coat layer and a low-refractive index layer provided in that order on the light-transparent base material, wherein the low-refractive index layer contains a contamination preventive agent and/or a slipperiness imparting agent, and contamination preventive agent and/or slipperiness imparting agent are added so that the concentrations of the contamination preventive agent and/or slipperiness imparting agent have a concentration gradient from the surface of the hard coat layer toward the surface of the low-refractive index layer.Type: GrantFiled: March 28, 2007Date of Patent: August 2, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tomoyuki Horio, Hiroaki Omori
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Publication number: 20110136948Abstract: Linear perfluoropolyethers of formula: T—O (CF2O)n (CF2CF2O)m (CF2CF2CF2O)r (CF2OF2CF2CF2O)s—T1 ??(I) wherein n, m, r, s are integers such that the polymer number average molecular weight is comprised between 700 and 100,000 and the n/(n+m+r+s) ratio ranges from 0.05 to 0.40, and respective preparation process by addition of a peroxidic perfluoropolyether of formula (III): T4—O(CF2O)n, (CF2CF2O)m, (O)h—T5 ??(III) having a PO from 1.8 to 4, to a perfluoropolyether oil preheated at a temperature comprised between 150° C. and 250° C. and subsequent exhaustive fluorination of the obtained compound.Type: ApplicationFiled: February 16, 2011Publication date: June 9, 2011Applicant: SOLVAY SOLEXIS S.p.A.Inventors: Pier Antonio GUARDA, Giuseppe Marchionni
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Patent number: 7956112Abstract: An aqueous fluoropolymer dispersion comprising an aqueous medium, fluoropolymer particles, and an amine oxide surfactant. Coagulated fluoropolymer resin is produced from the dispersion by adding an acidic reagent in sufficient amount to cause coagulation and separation of the coagulated fluoropolymer resin from the aqueous medium. Another particulate component such as particular polymer, filler, pigment, solid lubricant, etc., may be added to the dispersion and co-coagulated to form a mixture of coagulated fluoropolymer resin and particulate component.Type: GrantFiled: October 23, 2007Date of Patent: June 7, 2011Assignee: E. I. du Pont de Nemours and CompanyInventor: Clay Woodward Jones
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Patent number: 7935768Abstract: A crosslinked fluoroaromatic polymer having at least one crosslinked fluoropolymer chain and at least one fluorinated aromatic segment, wherein the crosslinked fluoropolymer chain is crosslinked to the fluorinated aromatic segment via a nucleophilic curing agent, and processes for preparation thereof.Type: GrantFiled: July 29, 2008Date of Patent: May 3, 2011Assignee: Xerox CorporationInventors: Carolyn Moorlag, Nan-Xing Hu
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Patent number: 7932348Abstract: Polymers made by polymerization or cyclization condensation of a fluorine-containing polymerizable monomer represented by the formula [1] wherein “a” represents an integer from 1 to 4. The monomer contains a plurality of polymerizable amines in the molecule and at the same time one or more hexafluoroisopropyl group(s). With this structure it can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and it can be used for advanced polymer material fields.Type: GrantFiled: May 26, 2010Date of Patent: April 26, 2011Assignee: Central Glass Company, LimitedInventors: Hiroshi Saegusa, Satoru Narizuka, Kazuhiko Maeda
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Patent number: 7915377Abstract: What is disclosed relates to polymers that resist dissolution in organic solvents, are vasodilators, and are tunable explosives. These polymers also form solvent resistant coatings and solvent resistant fibers as well as bonding materials.Type: GrantFiled: January 12, 2010Date of Patent: March 29, 2011Assignee: Central Michigan University Board of TrusteesInventors: Dillip K. Mohanty, Ajit Sharma
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Patent number: 7910686Abstract: The present invention relates to a block copolymer having at least one block having an acid group and at least one block having substantially no acid group, wherein one end group of a repeating unit in at least one block of all blocks is oxygen and/or sulfur, and at least one repeating unit of a block having substantially no acid group contains a halogen atom. The block copolymer of the present invention gives a polymer electrolyte membrane which is excellent not only in heat resistance and proton conductivity but also in water resistance and chemical stability, and is useful as an electrolyte for a proton conducting membrane etc. of a fuel cell.Type: GrantFiled: October 14, 2003Date of Patent: March 22, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Shinoda, Atsushi Terahara
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Patent number: 7893192Abstract: Provided are pi-conjugated polymer materials that are useful for photoelectric transducer elements having high hole transportability and excellent durability, that are useful for light-emitting elements having superior emitting properties and excellent durability, and that are useful for active layers of thin film transistors. The pi-conjugated polymers comprise a constitutional unit expressed by the General Formula (I) or (II): in which, Ar represents an aromatic hydrocarbon group or a heterocyclic group that may have a substituent; R represents a hydrogen atom, an alkyl group or an aromatic hydrocarbon group that may have a substituent; Ar1 represents a divalent group of an aromatic hydrocarbon or a heterocycle that may have a substituent; in which, Ar represents an aromatic hydrocarbon group or a heterocyclic group that may have a substituent; R represents a hydrogen atom, an alkyl group or an aromatic hydrocarbon group that may have a substituent.Type: GrantFiled: March 6, 2007Date of Patent: February 22, 2011Assignee: Ricoh Company, Ltd.Inventors: Masaomi Sasaki, Masafumi Torii, Takashi Okada, Toshiya Sagisaka
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Patent number: 7863394Abstract: A method of polymerizing poly(cyclic)olefin monomers encompassing (a) combining a monomer composition containing the poly(cyclic)olefin monomers, a non-olefinic chain transfer agent and an activator compound to form a mixture; (b) heating the mixture; and (c) adding a polymerization catalyst containing Ni and/or Pd. The non-olefinic chain transfer agent includes one or more compounds selected from H2, alkylsilanes, alkylalkoxysilanes, alkylgermanes, alkylalkoxygermanes, alkylstannanes, and alkylalkoxystannanes. The activator is characterized as having an active hydrogen with a pKa of at least 5. The resulting poly(cyclic)olefin polymers can be used in photoresist compositions.Type: GrantFiled: September 7, 2006Date of Patent: January 4, 2011Assignee: Promerus LLCInventors: Larry F. Rhodes, Dennis A. Barnes, Andrew Bell, Brian K. Bennett, Chun Chang, John-Henry Lipian, Xiaoming Wu
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Patent number: 7847056Abstract: An object of the invention is to provide a fluorine-containing (meth)acrylate polymer readily at a low cost without using any special polymerization facilities. Thus, the invention provides a fluorine-containing (meth)acrylate polymer obtained by reacting a (meth)acrylate polymer with an alcohol containing a fluorine atom represented by General Formula 1: Rf(CH2)nOH??(1) wherein Rf is a fluoroalkyl group or a fluoroalkyl ether group of 1 to 15 carbon atoms containing at least one or more fluorine atoms and n is an integer of 0 to 10 as well as a method for producing the same.Type: GrantFiled: March 25, 2005Date of Patent: December 7, 2010Assignees: Kaneka CorporationInventors: Etsuo Horii, Hirosuke Kawabata, Toshikazu Hirao, Akiya Ogawa, Xiaoliang Xu
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Patent number: 7829649Abstract: A perfluoropolyether-polyorganosiloxane block copolymer represented by the following formula (1), the block copolymer having a number average molecular weight, reduced to polystyrene, of from 2,000 to 20,000, W2-Q-Rf-Q-(W1-Q-Rf-Q)g-W2??(1) wherein Rf is a perfluoropolyether block, W1 is a polyorganosiloxane block having at least one group represented by the following formula (2) wherein X is a hydrolyzable group, R1 is a C1-4 alkyl group or a phenyl group, y is an integer of from 1 to 5, and a is 2 or 3, Q is a C2-12 divalent connecting group which may contain an oxygen atom and/or nitrogen atom, W2 is an organosiloxane residue having a group represented by the aforesaid formula (1), and g is an integer of from 1 to 11.Type: GrantFiled: November 25, 2008Date of Patent: November 9, 2010Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yuji Yamane, Noriyuki Koike, Koichi Yamaguchi
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Patent number: 7825280Abstract: The present invention relates to a fluorine-containing polymerizable monomer represented by the formula [1], [Chem. 31] wherein “a” represents an integer of 1-4. This monomer has a plurality of polymerizable amines in the molecule and at the same time a hexafluoroisopropyl group(s). With this, it can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and can be used for advanced polymer material fields.Type: GrantFiled: October 17, 2005Date of Patent: November 2, 2010Assignee: Central Glass Company, LimitedInventors: Hiroshi Saegusa, Satoru Narizuka, Kazuhiko Maeda
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Patent number: 7816468Abstract: Fluoroelastomer gum or crumb is isolated from fluoroelastomer dispersions by the addition of a water-soluble polymeric coagulating agent to the dispersion. This coagulating agent comprises either a homopolymer of ethylene oxide (CH2CH2O—) or a copolymer of ethylene oxide. Specific examples of such copolymers include, but are not limited to ethylene oxide-propylene oxide copolymers and ethylene oxide-butylene oxide copolymers. The viscosity average molecular weight (Mv), determined by rheology, of the coagulant polymer must be at least 500,000 and preferably greater than 2,000,000.Type: GrantFiled: September 18, 2008Date of Patent: October 19, 2010Assignee: DuPont Performance Elastomers LLCInventor: Donald F. Lyons
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Publication number: 20100234556Abstract: Polymers made by polymerization or cyclization condensation of a fluorine-containing polymerizable monomer represented by the formula [1] wherein “a” represents an integer from 1 to 4. The monomer contains a plurality of polymerizable amines in the molecule and at the same time one or more hexafluoroisopropyl group(s). With this structure it can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and it can be used for advanced polymer material fields.Type: ApplicationFiled: May 26, 2010Publication date: September 16, 2010Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Hiroshi SAEGUSA, Satoru Narizuka, Kazuhiko Maeda
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Patent number: 7795375Abstract: 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—)xY(—Z)z, wherein X is a group represented by the formula HO—(CH2CH2O)a.(CH2CH(OH)CH2O)b—(CH2)c—CF2O(CF2CF2O)d— (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 RFO(CF2CF2O)g— (wherein RF is e.g. a C1-20 perfluoroalkyl 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.Type: GrantFiled: July 11, 2006Date of Patent: September 14, 2010Assignee: Asahi Glass Company, LimitedInventors: Daisuke Shirakawa, Kazuya Oharu, Takashi Okazoe
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Publication number: 20100227983Abstract: The invention pertains to a process for the manufacture cola medical implant, said process comprising: reacting a mixture of non functional, monofunctional, and bifunctional perfluoropolyethers comprising hydroxyl terminal groups, wherein the average functionality is of at least 1.97 [mixture (M)] with suitable reactants for producing a thermoplastic elastomer; moulding the so-obtained thermoplastic elastomer for yielding at least a part of the medical implant. It has been surprisingly found that by using a mixture of perfluoropolyethers having high functionality, it is advantageously possible to manufacture, by moulding thermoplastic elastomers therefrom, medical implants which exhibit improved biocompatibility and which are submitted to reduced chemicals extraction by biological fluids.Type: ApplicationFiled: June 7, 2007Publication date: September 9, 2010Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Claudio Tonelli, Piero Gavezotti, Ritalba Lamendola
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Publication number: 20100222526Abstract: The present invention provides a method for production of a copolymer for photoresists in which the bias of the monomer composition ration is small. This method for production is a method for production of a copolymer for photoresists, which copolymer containing at least two types of repeating units, the method having a supplying step of supplying a monomer solution and a solution containing a polymerization initiator into a polymerization reaction system, wherein the range of fluctuation of the monomer composition ratio of unreacted monomers is within the range between minus 15% and plus 15% or the standard deviation of the monomer composition ratio of unreacted monomers is within 2 in the polymerization reaction system during the period from the start of the polymerization reaction to the end of supplying of the monomer solution.Type: ApplicationFiled: February 9, 2010Publication date: September 2, 2010Applicant: Maruzen Petrochemical Co., Ltd.Inventors: Tomo Oikawa, Eiichi Ikawa
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Patent number: 7781085Abstract: A novel polymer electrolyte is provided that enables a solid polymer electrolyte used in fuel cells, for example, to have sufficient proton conductivity even in a low-water-content state or a zero-water-content state by using a monomer compound represented by the general formula (1), and a graft copolymer compound in which the monomer compound represented by the general formula (1) is graft-copolymerized to the main chain of a fluorine-containing hydrocarbon polymer. Tf indicates a trifluoromethane sulfonyl group (—SO2CF3).Type: GrantFiled: November 26, 2004Date of Patent: August 24, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yuichiro Sugiyama
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Publication number: 20100201019Abstract: Waste reduction, including hazardous waste reduction in photoimaging processes can be accomplished by improving diffusional resolution of cationic curable compositions. The addition of fluorinated polymers including fluorinated surfactants provides improved diffusional resolution in cationic and/or radical based photoimaging formulations allowing for image accuracy improvements, and reduced product and process waste quantity and disposal cost. These fluorinated surfactants also allow for increased cure speed, and non-hazardous constituent formulations that result in less wasted material and time.Type: ApplicationFiled: January 28, 2010Publication date: August 12, 2010Inventors: John Lawton, Jigeng Xu, John Southwell, Gordon Smith, Willem D. Weenink
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Patent number: 7767758Abstract: A composition of matter includes a plurality of fluoropolymer chains. Each of the fluoropolymer chains is chemically bonded to at least one organic graft. The at least one organic graft includes a phenoxy group, a linking group, and at least one silane end group. The phenoxy group is chemically bonded to the fluoropolymer chain, and the linking group chemically bonds the phenoxy group with the at least one silane end group.Type: GrantFiled: February 28, 2007Date of Patent: August 3, 2010Assignee: Xerox CorporationInventors: Carolyn Patricia Moorlag, Nan-Xing Hu, Yu Qi, Kathy Lynn De Jong
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Publication number: 20100182719Abstract: According to one embodiment, a lubricant agent comprises a fluorine polymer represented as follows: R1—O—(R3O)l(R4O)m(R5O)n(R6O)o(R7)p-R2 where, R1 is a perfluoroalkyl group of C1 to C10, R2 is an organic group including at least one of three or more polar groups and carbon-carbon pi bonding, R3, R4, R5, and R6 are perfluoroalkylene groups of C1 to C4, respectively, R7 is an alkylene group or the perfluoroalkylene group of C1 to C10, and l, m, n, o, and p each indicate zero or a positive integer and do not concurrently indicate zero.Type: ApplicationFiled: January 21, 2010Publication date: July 22, 2010Applicant: TOSHIBA STORAGE DEVICE CORPORATIONInventor: Keiji WATANABE
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Patent number: 7754796Abstract: The present invention provides a method of producing a fluoropolymer, wherein polymerization using a carboxylate ester bond-containing carboxylic acid derivative as a surfactant in an aqueous medium to give the fluoropolymer is conducted, the above carboxylate ester bond-containing carboxylic acid derivative has a carboxylate ester bond and —COOM (M representing H, NH4, Li, Na or K), the above carboxylate ester bond may optionally be substituted by fluorine atom.Type: GrantFiled: June 29, 2009Date of Patent: July 13, 2010Assignee: Daikin Industries, Ltd.Inventors: Nobuhiko Tsuda, Yoshihiro Yamamoto, Yoshinori Nanba, Yasuhiko Sawada, Tetsuo Shimizu
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Publication number: 20100160598Abstract: To provide a process for producing fluoropolymer particles, whereby formation of fine particles is suppressed.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Susumu SAITO, Tetsuji SHIMOHIRA, Takashi SAEKI, Junichi TAYANAGI
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Publication number: 20100144914Abstract: To provide a crosslinkable fluorinated aromatic prepolymer which is capable of forming a cured product having a low relative permittivity, high heat resistance, low birefringence and high flexibility, and its uses.Type: ApplicationFiled: December 4, 2009Publication date: June 10, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Shunsuke YOKOTSUKA, Masahiro ITO, Kaori TSURUOKA
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Patent number: 7728095Abstract: There is provided a process for producing an organic-inorganic hybrid glassy material, including the sequential steps of (a) concentrating a starting sol of an organic-inorganic hybrid glassy material, thereby yielding a precursor material having meltability; (b) melting the precursor material; (c) subjecting a product of the step (b) to a heating treatment under reduced pressure; and (d) subjecting a product of the step (c) to a high-temperature heat treatment at 300° C. or higher.Type: GrantFiled: February 9, 2007Date of Patent: June 1, 2010Assignee: Central Glass Company, LimitedInventors: Minoru Kuniyoshi, Toshinobu Yoko
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Patent number: 7705113Abstract: A process for preparing peroxidic perfluoropolyethers having a perioxidic content (PO) lower than or equal to 1.2 of formula A-CF2O(CF2CF2O)m(CF2O)n—(CF2CF2OO)ml(CF2OO)n1CF2—B??(I) Wherein A, B equal to or different from each other are —C1, —F, —F2CC1, —COF, —OCOF, —CF3, m, m1, n, n1 are integers such that the (m+m1)/(n+n1) ratio is between 0.6 and 1.3 and the m/n ration is between 0.5 and 1.2; the number average molecular weight is in the range 35,000-45,000, by tetrafluoroethylene (TFE) photooxidation in the presence of UV light, at a temperature from ?80° C. to ?40° C., in the presence of a mixture of solvents formed of HFC-227 (hepta-fluoropropane) and a solvent selected between HFC-125 (pentafluoroethane) and FC-218 (perfluoropropane).Type: GrantFiled: March 3, 2006Date of Patent: April 27, 2010Assignee: Solvay Solexis S.p.A.Inventors: Giuseppe Marchionni, Pier Antonio Guarda, Elvira Pagano