Halogen Attached Indirectly To The Ether Oxygen By Nonionic Bonding Patents (Class 508/582)
  • Patent number: 10384178
    Abstract: Lecithin based microemulsion and their uses as nanoreactors and carrying materials are disclosed. In one embodiment, a method of forming a nanomaterial comprises mixing a lecithin based microemulsion with a first reactant and a second reactant. In a further embodiment, a method for encapsulating a nanomaterial in a lecithin based microemulsion forming a composition and wherein the composition forms a dispersion in an aqueous solution, polar solution, or a non-polar solution.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 20, 2019
    Assignee: Archer Daniel Midland Company
    Inventors: Shireen Baseeth, Swapnil Jadhav
  • Patent number: 10179836
    Abstract: A polymer [polymer (P)] comprising a plurality of (per)fluoropolyether (PFPE) segments [segments (SRF)] joined together by hydrogenated (poly)ether segments [segments (SH)], said polymers (P) having two end groups [groups (E)], each group (E) comprising a hydroxy or a leaving group, with the proviso that the hydrogenated (poly)ether segment (SH) is not a segment of formula —CH2OCH2 OCH2— is herein disclosed. Disclosed is also a method for the manufacture of polymer (P) and a polymer obtainable by full or partial fluorination of polymer (P). Polymer (P) and polymers obtainable therefrom by full or partial fluorination can be conveniently used in the manufacture of lubricant compositions or of compositions for imparting hydro-/oleo-repellence to substrates. Said polymers can also be used as intermediates for the manufacture of other polymers or block copolymers.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: January 15, 2019
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Claudio Adolfo Pietro Tonelli, Solange Barbieri, Ivan Wlassics, Letanzio Bragante, Giuseppe Marchionni
  • Patent number: 9598657
    Abstract: To provide a fluorinated polyether compound capable of forming a film excellent in lubricity, a lubricant and a liquid composition, as well as an article having a film excellent in lubricity, on a substrate. A fluorinated polyether compound represented by {X—O—[(CF2CF2O)a—(CF2CF2CF2CF2O)b]}m—Y—{[(OCF2CF2)c—(OCF2CF2CF2CF2)d]—O—Z}n is used. X is a group having a hydroxy group, a carboxy group, an ester group or an aryl group, Y is an (m+n) valent linking group, Z is a group having a haloalkyl group, each of m and n is an integer of from 1 to 10, m+n is an integer of from 2 to 20, and each of a, b, c and d is an integer of from 1 to 100.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 21, 2017
    Assignee: Asahi Glass Company, Limited
    Inventors: Akira Isobe, Kenji Ishizeki
  • Patent number: 9017834
    Abstract: Disclosed herein are compounds of formula I: X-(L-Z)p-L-R[L-(Z-L)p-Y]q??(I) wherein L is a perfluoropolyether; R is q can be an integer equal to or greater than 1; p can independently be integers from 0 to 7; X and Y can independently be chosen from: —OH, —CH2CH2OH, CH2CH2OCH2CH2OH, —CH2CH(OH)CH2OH, —C6H5, —CH2C6H5, —CH2CH(OH)CH3, F, —CF3, —CF2CF3, piperonyl, triazine, benzotriazole, and derivatives thereof; and Z, if present, can independently be chosen from: —C6H4—, —CH2C6H4CH2—, —CH2CH(OH)CH2—, —CH2CH(OH)CH2CH(OH)CH2—, —CH(OH)CH(OH)CH2—, —CH(CH2OH)—, or —CH(C6H5)—.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: April 28, 2015
    Assignee: Seagate Technology LLC
    Inventors: Xiaoping Yan, Michael Stirniman, Qian Guo, Wenhong Liu
  • Patent number: 8999533
    Abstract: Provided is a magnetic disk comprising a lubricating layer formed of a lubricant. The lubricant constituting the lubricating layer has excellent properties, for example, excellent fluidity, surface energy, and CFT properties. By virtue of the excellent properties, the magnetic disk has a high level of reliability despite a low flying height of a magnetic head due to a recent rapid increase in recording density and a very severe environment resistance requirement due to diversification of applications. The magnetic disk comprises a substrate and at least a magnetic layer, a protective layer, and a lubricating layer provided in that order over the substrate.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: April 7, 2015
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventor: Koichi Shimokawa
  • Patent number: 8999534
    Abstract: A lubricant for a magnetic disk that is excellent in heat resistance and is suitably used in a magnetic disk to be mounted on a magnetic recording device of a thermally assisted magnetic recording system and a magnetic disk provided with a lubricant layer containing this lubricant. The lubricant for a magnetic disk contains a compound where perfluoropolyether groups each having a perfluoropolyether main chain in its structure and a phosphazene ring at an end are linked to each other through a linking group. The linking group is an aliphatic group or a phosphazene ring. In a magnetic disk having at least a magnetic recording layer, a protective layer, and a lubricant layer on a substrate, the lubricant layer contains the lubricant for a magnetic disk.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: April 7, 2015
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventors: Koichi Shimokawa, Katsushi Hamakubo
  • Patent number: 8980450
    Abstract: A lubricant containing a compound (A) comprising a perfluoropolyether having a main-chain structure of the formula (1) and having a polar group at each of opposite terminals thereof, and a compound (B) comprising a perfluoropolyether having a main-chain structure of the formula (1) and having a nonpolar group at at least one terminal thereof —(CF2CF2CF2O)a-??(1) wherein a is a real number of 5 to 30.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 17, 2015
    Assignee: MORESCO Corporation
    Inventor: Nagayoshi Kobayashi
  • Patent number: 8980811
    Abstract: A method of lubricating a wind turbine gearbox comprising using a lubricating composition comprising at least one (i.e. one or a mixture of more than one) perfluoropolyether (PFPE) lubricant which comprises a perfluorooxyalkylene chain, said perfluorooxyalkylene chain comprising recurring units having at least one ether bond and at least one fluorocarbon moiety. A wind turbine gearbox comprising a lubricating system containing said lubricating composition.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: March 17, 2015
    Assignee: Solvay Solexis S.p.A.
    Inventors: Giovanni Boccaletti, Fabio Riganti, Manfred Jungk
  • Patent number: 8975445
    Abstract: A process for the manufacture of a functional (per)fluoropolyether derivative comprising at least one triazole group, such process comprising: (1) reacting a (per)fluoropolyether hydroxyl derivative having at least one hydroxyl group [derivative (PFPE-OH)] with an activating agent, to yield an activated (per)fluoropolyether hydroxyl derivative comprising at least one activated hydroxyl group [derivative (a-PFPE-OH)];(2) reacting said activated (per)fluoropolyether hydroxyl derivative [derivative (a-PFPE-OH)] with at least one azide salt to yield a functional (per)fluoropolyether derivative comprising at least one azido group [derivative (PFPE-N3)] ; and (3) reacting said functional (per)fluoropolyether derivative comprising at least one azido group [derivative (PFPE-N3)] with a hydrocarbon compound having a terminal alkyne group to yield a functional (per)fluoropolyether derivative comprising at least one triazole group [derivative (PFPE-azole)].
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: March 10, 2015
    Assignee: Solvay Specialty Polymers Italy S.p.A.
    Inventors: Prakash Wadgaonkar, Shamal Menon, Claudio Adolfo Pietro Tonelli
  • Publication number: 20150037505
    Abstract: To provide a lubricant solution which does not impair the global environment, which provides an excellent solubility of a lubricant, which has a sufficient drying property and with which a uniform lubricant coating film can be formed, and a method for producing an article provided with a lubricant coating film, using the lubricant solution. A lubricant solution which is a solution of a lubricant, wherein the solvent is a solvent containing 1,1-dichloro-2,3,3,3-tetrafluoro-1-propene. A method for producing an article provided with a lubricant coating film, which comprises applying the lubricant solution to an object to be coated, and evaporating the solvent to form a lubricant coating film on the object.
    Type: Application
    Filed: October 14, 2014
    Publication date: February 5, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Masaaki TSUZAKI, Mai Hashimoto, Hiroaki Mitsuoka
  • Patent number: 8946136
    Abstract: Hydrofluoro alcohols of formula (I): A-(Rf)a—CFX—O—RhO—(CFX—(Rf)a*—CFX—O—RhO—)nH in which: Rh is a hydrocarbon-based chain; X is F or a C1-C6 (per)fluoroalkyl; a or a* is 0 or 1; Rf is a (per)fluoro(poly)oxyalkylene chain or a (per)fluoroalkyl chain; A is selected from the group consisting of —F, —Cl, and —H (possible only when a=1) or is HO—Rh—O—CFX—; n is an integer from 0 to 200, with the condition that n=0 when A is selected from the group consisting of —F, —Cl, and —H.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: February 3, 2015
    Assignee: Solvay Specialty Polymers Italy S.p.A.
    Inventors: Giuseppe Marchionni, Ugo De Patto, Marco Avataneo
  • Patent number: 8852763
    Abstract: Compounds of formula I: wherein X are independently —(CH2)b—, wherein b is 0 or an integer from 1 to 6; Rf are independently —CF2O(CF2CF2O)p(CF2)qCF2—, —CF2CF2O(CF2CF2CF2O)rCF2CF2—, or —CF2CF2CF2O(CF2CF2CF2CF2O)sCF2CF2CF2—, or derivatives thereof, wherein p, q, r and s are independently integers so that Mn of Rf is about 150 to 4500; and Z are independently chosen from groups that comprise —OH, —(OH)2, —COOCH3, —F, —CF3, or —CF2CF3, with the caveat that not all Z are the same.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: October 7, 2014
    Assignee: Seagate Technology LLC
    Inventors: Xiaoping Yan, Michael Josesph Stirniman
  • Patent number: 8841008
    Abstract: Compositions for use in lubricating thin film storage media are provided, as well as storage media formed using the compositions, the compositions including one or more central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein each arm comprises phenol or piperonyl. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: September 23, 2014
    Assignee: Seagate Technology LLC
    Inventors: Lei Li, Michael Joseph Stirniman, Jiping Yang
  • Patent number: 8748359
    Abstract: An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting (A) reacting a copolymer of an (i) an unsaturated acidic reagent; and (ii) a mono-olefin, with at least one linking hydrocarbyl di-primary amine, thereby producing a hybrid succinic anhydride copolymer having from about 10% to about 90% unreacted anhydride groups; and subsequently (B) reacting the hybrid succinic anhydride copolymer with a second amine compound, thereby producing the succinimide; and (C) reacting the succinimide with at least one post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid, an aromatic polycarboxylic anhydride, an aromatic polycarboxylic acid ester, or mixtures thereof.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: June 10, 2014
    Assignee: Chevron Oronite Company LLC
    Inventors: James J. Harrison, Mitra Hosseini
  • Patent number: 8734966
    Abstract: A compound of the formula (1), lubricant containing the compound and magnetic disk R1—C6H4O—CH2CH(OH)CH2OCH2—R2—CH2—O—R3??(1) wherein R1 is hydrogen, alkoxyl having 1 to 4 carbon atoms, amino or amido, R2 is —CF2O(CF2CF2O)x(CF2O)yCF2—, —CF2CF2O(CF2CF2CF2O)z—CF2CF2— or —CF2CF2CF2O(CF2CF2CF2CF2O)nCF2CF2CF2—, x and y are each an integer of 0 to 15, z is an integer of 1 to 15, n is an integer of 0 to 4, R3 is —CH2CH(OH)CH2OH, —CH2CH(OH)CH2OCH2CH(OH)CH2OH or —(CH2)mOH, m is an integer of 2 to 6.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: May 27, 2014
    Assignee: Moresco Corporation
    Inventors: Ryosuke Sagata, Tsuyoshi Shimizu, Tomomi Hatta, Nagayoshi Kobayashi
  • Publication number: 20140135244
    Abstract: The invention relates to (per)fluoropolyether block copolymers comprising: A) a fluoropolyoxyalkylene segment (chain Ra) comprising one or more units of formula (CHXCF2CF2O)— in which X is hydrogen or fluorine; B) a (per)fluoropolyoxyalkylene segment (chain Rf), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, said (per)fluoropolyoxyalkylene segment being different from chain Ra and having a molecular weight higher than 400 g/mol. These copolymers are endowed with improves lubricant properties or with improved water and oil-repellence properties.
    Type: Application
    Filed: June 20, 2012
    Publication date: May 15, 2014
    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Claudio Adolfo Pietro TONELLI, Simonetta Antonella FONTANA, Marco GALIMBERTI, Piero GAVEZOTTI
  • Patent number: 8722213
    Abstract: Lubricant with non-terminal functional groups. The location of the functional groups minimizes free chain length and molecular weight of a lubricant while simultaneously maximizing evaporation temperature. The locations of the functional groups to the backbone of the molecule of the lubricant allows for shorter lengths of free backbone length between functional groups attached to a lubricated surface. The lubricant lubricates mechanical devices including hard disk drives. The lubricant can also be added to media or other mechanical parts in conjunction with other lubricants.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: May 13, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Xing-Cai Guo, Bruno Marchon, Robert Waltman, Run-Han Wang
  • Patent number: 8697262
    Abstract: A magnetic disk in which at least a magnetic layer, a protective layer, and the lubrication layer are sequentially provided on a substrate, the lubrication layer contains a lubricant compound for a magnetic disk, having a perfluoropolyether main chain in the molecular structure and a structure indicated as follows at a position close to the center of the molecule: -0-CH2—CH(OH)—CH2—CH2—CH(OH)—CH2-0- or -0-CH2—CH(OH)—CH(OH)—CH2-0-.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 15, 2014
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventors: Katsushi Hamakubo, Kae Itoh, Koichi Shimokawa
  • Patent number: 8685548
    Abstract: Compositions including one or more a central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein the arms comprise perfluoropolyethers (PFPEs) or its derivatives. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 1, 2014
    Assignee: Seagate Technology LLC
    Inventors: Xiaoping Yan, Michael Joseph Stirniman, Jiping Yang, Wenhong Liu, Qian Guo
  • Patent number: 8679656
    Abstract: A lubricant containing a compound of the formula (I) wherein n is substantially 2, 3 or 4, R is C1-4 fluoroalkyl and Rf is —CF2O(CF2CF2O)x(CF2O)yCF2— or —CF2CF2O(CF2CF2CF2O)zCF2CF2— in which x, y and z are each 0 or a positive real number to give a number average molecular weight of 500 to 2000 to a fluoropolyether of the formula HOCH2—Rf—CH2OH including said Rf, the fluoropolyether having a molecular weight distribution (PD, weight average molecular weight/number average molecular weight) of 1.0 to 1.5.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: March 25, 2014
    Assignee: Moresco Corporation
    Inventors: Nagayoshi Kobayashi, Tsuyoshi Shimizu
  • Patent number: 8668995
    Abstract: A compound of the formula (1), lubricant containing the compound and magnetic disk C6H4—(O—Z—R—X)2??(1) wherein Z is —CH2CH2O— or —CH2CH(OH)CH2O—, R is —CH2CF2CF2CF2O(CF2CF2CF2CF2O)nCF2CF2CF2CH2—, n is a real number of 0 to 20, X is —OH, —O(CH2)mOH, —OCH2CH(OH)CH2OH, —OCH2CH(OH)CH2O—C6H5 or —OCH2CH(OH)CH2O—C6H4—OCH3, m is an integer of 1 to 6.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: March 11, 2014
    Assignee: Moresco Corporation
    Inventors: Tsuyoshi Shimizu, Nagayoshi Kobayashi
  • Patent number: 8663822
    Abstract: In one embodiment, a magnetic disk medium includes a nonmagnetic substrate, a magnetic recording layer above the nonmagnetic substrate, a protective layer above the magnetic recording layer, and a lubricant layer above the protective layer, the lubricant layer including a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated R1-OCH2CF2CF2O(CF2CF2CF2O)mCF2CF2CH2O—R2, wherein R1 and R2 are alkyl chains having at least two hydroxyl groups each, and m is an integer indicating a number of repeating units. According to another embodiment, a magnetic disk medium lubricant includes a mixture of a compound having one or more cyclophosphazene groups and a lubricant formulated as above, such that a magnetic head is provided stable flight above the lubricant layer in conditions having relative humidity of greater than about 40%.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: March 4, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Yoshihiko Ooeda, Yuzuru Shimazaki, Mina Amo, Yuichi Aoki, Robert Waltman
  • Patent number: 8628869
    Abstract: According to one embodiment, a lubricant includes a perfluoropolyether having a chemical structure of: wherein Rf is at least one of: —CF2O(CF2CF2O)m(CF2O)nCF2— and —CF2CF2O(CF2CF2CF2O)kCF2CF2—, with m representing 0 or a positive integer, n representing 0 or a positive integer, and k representing 0 or a positive integer, and wherein R1 to R4 are selected from a group consisting of —H or with at least one of R1 to R4 being
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: January 14, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Mina Amo, Katsumi Mabuchi, Hiroshi Yoshida, Bruno Marchon, Qing Dai
  • Patent number: 8628868
    Abstract: 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: Grant
    Filed: May 4, 2011
    Date of Patent: January 14, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: John Martin Burns, Norbert A. Feliss, Xing-Cai Guo, Bruno Marchon, Robert Waltman
  • Publication number: 20140011717
    Abstract: The present application is directed to methods and devices for altering material properties of lubricants and other cross-linkable compounds comprising organic or organometallic materials through exposure to energized gaseous species. The energized gaseous species may create reactive sites among lubricant molecules that may alter their material properties by cross-linking at least a portion of the lubricant molecules. The cross-linked lubricant may reduce the ability of the lubricant to migrate away when force is applied between lubricated sliding friction surfaces.
    Type: Application
    Filed: March 15, 2013
    Publication date: January 9, 2014
    Applicant: TriboFilm Research, Inc
    Inventors: Jackson Thornton, Vinay G. Sakhrani, Charles Tomasino, Robert A. Mineo
  • Patent number: 8623800
    Abstract: A lubricant according to one embodiment includes a first ingredient and a second ingredient, said first ingredient as the main constituent being a first perfluoropolyether compound represented by the formula (1) which has a weight-average molecular weight of 500 to 6000 and a dispersity smaller than 1.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: January 7, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Yoshihiko Ooeda, Masayuki Ishikawa
  • Publication number: 20130298824
    Abstract: One example embodiment includes a lubricant for application on an external device. The lubricant includes a solvent cleaner. The lubricant also includes a lubricating agent.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 14, 2013
    Inventor: Donato Polignone
  • Patent number: 8518564
    Abstract: 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: Grant
    Filed: April 15, 2010
    Date of Patent: August 27, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: John M. Burns, Hong Deng, Xing-Cai Guo, Bruno Marchon, Daryl J. Pocker, Robert Waltman
  • Patent number: 8513471
    Abstract: A process for the manufacture of a polyol (per)fluoropolyether derivative comprising: 1. reacting at least one triol having two protected hydroxyl functions and a free hydroxyl group with an activating agent, to yield an activated protected triol; 2. reacting the activated protected triol with a functional (per)fluoropolyether derivative of formula: T2-O—Rf-T1, wherein: Rf represents a fluoropolyoxyalkene chain which is a fluorocarbon segment comprising ether linkages in main chain; T1 and T2, equal to or different from each other, are independently selected from non-functional groups of formula: —CF3, —CF2—CF3, —CF2Cl, —CF2CF2Cl, —CF2—COF, —COF: and functional hydroxyl groups comprising at least one hydroxyl group, with the provisio that at least one of T1 and T2 is a functional hydroxyl group as above detailed to yield a protected polyol (per)fluoropolyether derivative; and 3. deprotecting the protected polyol (per)fluoropolyether derivative to yield the polyol (per)fluoropolyether derivative.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: August 20, 2013
    Assignee: Solvay Solexis S.p.A.
    Inventors: Claudio Tonelli, Graziano Giuseppe Vezzulli, Rosaldo Picozzi, Piero Gavezotti, Antonella Di Meo
  • Patent number: 8501671
    Abstract: A process for producing a grease composition which is capable of homogeneously and surely dispersing a non-fluorine-based base oil blended with a thickening agent and a fluorine-based base oil blended with a thickening agent. A mixture of a non-fluorine-based base oil blended with a first thickening agent and a fluorine-based base oil blended with a second thickening agent that are not mutually compatible is homogeneously treated at a shear rate of 150 s?1 or higher to form a morphology structure in which one of the non-fluorine-based base oil and fluorine-based base oil is homogeneously dispersed in a particulate form having a mean particle diameter of not more than 25 ?m in the other base oil.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: August 6, 2013
    Assignee: NOK Klueber Co., Ltd.
    Inventors: Takeshi Hishinuma, Motoyuki Inai, Toshio Nitta
  • Patent number: 8492320
    Abstract: A lubricant composition which is suitable as a fluorine oil, fluorine grease, and which is excellent in stabilizability, as well as a lubricant composition which is suitable as a fluorine oil, fluorine grease, and which has excellent rust prevention properties while keeping a heat resistance.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: July 23, 2013
    Assignee: NOK Klueber Co., Ltd.
    Inventors: Tetsuhiro Miyamoto, Akihiko Shimura, Toshio Nitta, Jiro Yurimoto
  • Patent number: 8470748
    Abstract: Disclosed is an electroconductive grease comprising a fluorine oil, an electroconductive material, and a thickening agent, the electroconductive grease containing 5 to 20 wt. % of carbon black having a DBP oil absorption amount of 250 ml/100 g or less as the electroconductive material, and 2 to 15 wt. % of fluorine-containing resin particles having an average primary particle size of 1.0 ?m or less as the thickening agent. The electroconductive grease comprises carbon black having specific properties, and fluorine-containing resin particles, preferably PTFE particles, having an average primary particle size of 1.0 ?m or less, and therefore exhibits excellent oil separation characteristics, namely, a remarkably lower degree of oil separation, which can also be reduced to 10 wt. % or less.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: June 25, 2013
    Assignee: NOK Klueber Co., Ltd.
    Inventors: Akihiko Shimura, Yoshihito Tani, Toshio Nitta
  • Publication number: 20130157082
    Abstract: A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include an anchor group or a truncation group. The anchor group includes at least one surface active functional group. The midsection includes at least one perfluoroalkyl-branched perfluorinated ether unit.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Hong Deng, Xing-Cai Guo, Vedantham Raman, Robert Waltman, Yu-Chen Wu
  • Publication number: 20130157083
    Abstract: A method, system and apparatus are disclosed for forming a lubricant film for magnetic recording applications. The method includes, in certain embodiments, providing at least one substantially solvent free lubricant having a plurality of lubricant molecules with each lubricant molecule comprising a polymer chain having a backbone section and at least one functional end group. The method also includes treating the at least one substantially solvent free lubricant with a physical treatment to cross-link the backbone section of each polymer chain with at least one other molecule to create a cross-linked lubricant.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Inventors: Xing-Cai Guo, Robert Waltman
  • Patent number: 8426657
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 23, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
  • Patent number: 8410034
    Abstract: Provided is an ether composition containing at least two ether compounds each of which has from 1 to 4 groups represented by formula (X) and from 0 to 3 groups represented by formula (Z), where the total number of groups represented by formula (X) and (Z) is 4: HO—(CH2CH2O)a.(CH2CH(OH)CH2O)b-Q-??(X), CF3(CF2)sO(CF2CF2O)g—??(Z), where a, b, s, g and Q are defined herein. The ratio (CF3/(OH+CF3)) of the total molar amount of CF3 groups in the groups represented by formula (Z) to the sum of the total molar amount of CF3 groups in the groups represented by formula (Z) and the total molar amount of OH groups in the groups represented by formula (X) is from 0.01 to 0.5.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: April 2, 2013
    Assignee: Asahi Glass Company, Limited
    Inventor: Daisuke Shirakawa
  • Patent number: 8394748
    Abstract: A grease composition, which comprises a mixture of mutually incompatible thickener-containing non-fluorine-based base oil and thickener-containing fluorine-based base oil, the base oils being in a morphological structure, where one of the base oils is homogeneously dispersed in a particulate state in the other base oil, can be produced by kneading the mixture through a three-roll mill at least twice. By forming a morphological structure, one of the mutually incompatible non-fluorine-based base oil and fluorine-based base oil is homogeneously dispersed in a particulate state in the other base oil, that is, by forming a microscopically dispersed state, the following effects can be obtained: (1) less oil separation (smaller degree of oil separation) at elevated temperatures, (2) distinguished shearing stability, (3) low and stable friction coefficient, and (4) less abrasion.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: March 12, 2013
    Assignee: NOK Kluber Co., Ltd.
    Inventors: Takeshi Hishinuma, Toshio Nitta, Tatsuya Hashimoto, Takao Kanno
  • Patent number: 8372486
    Abstract: Liquid hydrofluorocarbons provide low corrosivity lubrication of metallic surfaces especially at elevated temperatures.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: February 12, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gregory A. Bell, Jon Lee Howell, Clay Woodward Jones, Robert Clayton Wheland
  • Publication number: 20130001016
    Abstract: One example embodiment includes a lubricant for installing an O-ring in a groove where the lubricant cleanroom compatible. The lubricant includes a fluorinated solvent. The lubricant also includes a fluorinated oil.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: NuGeneration Technologies, LLC
    Inventors: Donato Polignone, Fereidoun Pourmirzaie, Shoeb Moiyadi, Karel Schaap
  • Publication number: 20120251843
    Abstract: Compositions including one or more a central cores having a cyclic group, and a plurality of arms extending from the central cores, wherein the arms comprise perfluoropolyethers (PFPEs) or its derivatives. Methods of preparing the compositions are also provided. Methods of preparing storage media that incorporate the compositions therein are further provided.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 4, 2012
    Applicant: SEAGATE TECHNOLOGY LLC.
    Inventors: XIAOPING YAN, Michael Joseph Stirniman, Jiping Yang, Wenhong Liu, Qian Guo
  • Patent number: 8278256
    Abstract: Polymers of formula Q-O-[A-B]z-[A-B?]z-A-Q???(I) wherein: A=-(X)a—O-A?-(X?)b— with A?=perfluoropolyether chain and X, X?=—CF2—, —CF2CF2—; a, b=0.1 with the proviso that a=1 if A is linked to Q-O—; b=0 when A is linked to Q?; B derives from homopolymerizable olefins by radical route, of formula: —[(CR1R2—CR3R4)j(CR5R6—CR7R8)j?]—??(Ia) wherein j is an integer from 1 to 30, j? is an integer from 0 to 29 with the proviso that (j+j?) is higher than 2 and lower than 30; R1-R8 are halogen; H; C1-C6 (per)haloalkyl; C1-C6 alkyl; or C1-C6 oxy(per)fluoroalkyl; B?=B but at least one among R1-R8 has a meaning different from that in B; z, z? are such that the number average molecular weight of the polymer of formula (I) is between 500 and 150,000; Q, Q?=C1-C3 (per)fluoroalkyl or functional end group —(CFW)-Dq-Tk; W=F, CF3; k and q are integers, k ranges from 1 to 4, q is an integer and is equal to 0 or 1; with the proviso that at least one of Q, Q? is functional end group.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: October 2, 2012
    Assignee: Solvay Solexis S.p.A.
    Inventors: Giuseppe Marchionni, Pier Antonio Guarda, Marco Avataneo
  • Patent number: 8258090
    Abstract: Fluorinated lubricants of formula: T-O-[A-B]z-[A-B?]z?-A-T???(I) wherein: A=—(X)a—O-A?-(X?)b wherein A? is a perfluoropolyether chain comprising units (CF2O), (CF2CF2O), (CF2CF2CF2O), (CF2CF2CF2CF2O); X, X?=—CF2—, —CF2CF2—; a, b=0 or 1; B derives from olefins, of which at least one homopolymerizable by radical route, of formula: —[(CR1R2—CR3R4)j(CR5R6—CR7R8)j?]—??(Ia) wherein j=1-5, j?=0-4 and 2<(j+j?)<5; R1-R8=halogen, H, C1-C6 (per)haloalkyl, C1-C6 alkyl, C1-C6 oxy(per)-fluoroalkyl; z?2; z? is 0 or an integer; z, z? are such that the number average molecular weight of the polymer of formula (I) is in the range 500-500,000; B?=(Ia) but at least one of R1-R8 has a meaning different than that in B and 2?(j+j?)<5; T, T?=C1-C3 perfluoroalkyl, C1-C6 alkyl and compositions thereof.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: September 4, 2012
    Assignee: Solvay Solexis S.p.A.
    Inventors: Marco Avataneo, Pier Antonio Guarda, Giuseppe Marchionni, Patrizia Maccone, Giovanni Boccaletti
  • Patent number: 8247361
    Abstract: A fluorine-based lubricant composition comprising a base oil and a fluorine-containing compound represented by the general formula: CF3(CF2)n O(CF2O)p(C2F4O)q(C3F6O)rRfCONHAr (wherein, Ar is a 2-benzimidazole group, Rf is a fluorocarbon group of carbon number of from 1 or 2, n is 0, 1 or 2, p, q and r are an integer satisfying the condition p+q+r?100, where one or two of p, q and r may be 0, and the CF2O group, the CF2O4 group and the C3F6O group are the groups bound randomly in the main chain) as an additive containing in the base oil. The fluorine-based lubricant composition has an improved long term anti-rust property and thermal resistance property, and further the fluorine-based lubricant composition obtained by adding a thickening agent to the composition reduces abrasion of the sliding member such as electric contact having a noble metal surface including a gold or silver plating surface, a copper surface and a copper alloy surface.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: August 21, 2012
    Assignee: NOK Kluber Co., Ltd.
    Inventors: Akihiko Shimura, Ayumi Yamazaki, I, Wataru Sawaguchi, Masaki Tahara, Yoshihito Tani, Toshio Nitta
  • Publication number: 20120184471
    Abstract: Lubricating varnish for coating a metal component or applied to a metal component, including a base coat as a matrix and at least one lubricant. At least one antiwear agent (5) is additionally included.
    Type: Application
    Filed: September 23, 2010
    Publication date: July 19, 2012
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Jurgen Windrich, Carsten Duppe, Ivan Grozev
  • Patent number: 8217119
    Abstract: Polymeric compositions comprising: 1) at least one thermoprocessable semicrystalline halo-polymer; 2) an additive in amounts between 0.01 and 10% by weight of 1) one or more (per)fluoropolyether polymers of formula: Q-O-[A-B]z-[A-B?]z?-A-Q???(I) wherein: A=—(X)a—O-A?-(X?)b— wherein A? is a perfluoropolyether chain; X, X?=—CF2—, —CF2CF2—, —CF(CF3)—; a, b=0 or 1; B derives from one or more olefins, of which at least one homopolymerizable by radical way, of formula: —[(CR1R2—CR3R4)j(CR5R6—CR7R8)j?]—??(Ia) wherein j=1-30, j?=0-29, with the proviso that 2<(j+j?)<30; R1-R8=halogen, H, C1-C6 (per)haloalkyl, C1-C6 alkyl, or C1-C6 oxy(per)fluoroalkyl; B?=(Ia) but at least one of R1-R8 has a meaning different from that in B, and 2?(j+j?)<30; z?2; z? is 0 or an integer; z, z? are such that the number average molecular weight of (I) is between 500 and 500,000; Q, Q?=C1-C3 perfluoroalkyl; C1-C6 alkyl; or functional end group(s).
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: July 10, 2012
    Assignee: Solvay Solexis S.p.A.
    Inventors: Julio A. Abusleme, Marco Avataneo, Giancarlo Perfetti
  • Publication number: 20120157363
    Abstract: The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and ethanol. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions.
    Type: Application
    Filed: July 29, 2011
    Publication date: June 21, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JEFFREY P. KNAPP, Joan Ellen Bartelt
  • Publication number: 20120157362
    Abstract: The present disclosure provides azeotropic and azeotrope-like compositions comprised of methylperfluoroheptene ethers and heptane. The present disclosure also provides for methods of use for the azeotropic and azeotrope-like compositions.
    Type: Application
    Filed: July 29, 2011
    Publication date: June 21, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JEFFREY P. KNAPP, Joan Ellen Bartelt
  • Patent number: 8193393
    Abstract: Fluoroether diketones are provided that can be useful in apparatuses that includes a device and a mechanism for transferring heat. The provided fluoroether diketones are stable at temperatures above 175° C., are environmentally friendly, and are economical to produce. The provided apparatuses can be useful for vapor phase soldering of electronic devices.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: June 5, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Richard M. Flynn, Michael G. Costello, Michael J. Bulinski, Daniel R. Vitcak, Phillip E. Tuma
  • Publication number: 20120135905
    Abstract: An aerosol electrical contact cleaning and lubricating compound formulation including a first solvent, a second solvent, a third solvent, a lubricant, and a propellant. The first solvent is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether. The second solvent is a dichloroethylene, while the third solvent is an alkyl cyclohexane. The lubricant is perfluropolyether oil, and the propellant is a hydrofluorocarbon liquefied gas.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventor: Young Han
  • Patent number: 8188323
    Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity or energy efficiency of the refrigeration, air conditioning and heat transfer system.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: May 29, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell