Halogen Containing Patents (Class 568/24)
  • Patent number: 9717955
    Abstract: A golf ball 2 includes a spherical core 4, a mid layer 6, and a cover 8. The core 4 is obtained by crosslinking a rubber composition. The difference between: a hardness H(5.0) at a point which is located at a distance of 5 mm from the central point of the core 4; and a hardness Ho at the central point is 6.0 or greater. The difference between: a hardness H(12.5) at a point which is located at a distance of 12.5 mm from the central point; and the hardness H(5.0) is 4.0 or less. The difference between a hardness Hs at the surface of the core 4 and the hardness H(12.5) is 10.0 or greater. The difference between the hardness Hs and the hardness Ho is 22.0 or greater. There is no zone in which a hardness decreases from the central point to the surface. A Shore D hardness H3 of the cover is greater than a Shore D hardness H2 of the mid layer.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: August 1, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuhiko Isogawa, Hirotaka Nakamura
  • Patent number: 9096635
    Abstract: The present invention provides N-alkylthio ?-lactams and disulfide compounds (e.g., alkyl-coenzyme A asymmetric disulfides or aryl-alkyl disulfides), compositions containing such compounds, and methods of their use as anti-bacterial agents.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: August 4, 2015
    Assignee: UNIVERSITY OF SOUTH FLORIDA
    Inventors: Edward Turos, Kevin D. Revell
  • Patent number: 9061183
    Abstract: A golf ball 2 includes a spherical core 4 and a cover 6 positioned outside the core 4. The core 4 is obtained by crosslinking a rubber composition including 2-naphthalenethiol. The difference between: a hardness H(5.0) at a point which is located at a distance of 5 mm from the central point of the core 4; and a hardness Ho at the central point is 6.0 or greater. The difference between: a hardness H(12.5) at a point which is located at a distance of 12.5 mm from the central point; and the hardness H(5.0) is 4.0 or less. The difference between a hardness Hs at the surface of the core 4 and the hardness H(12.5) is 10.0 or greater. The difference between the hardness Hs and the hardness Ho is 22.0 or greater. There is no zone in which a hardness decreases from the central point to the surface.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: June 23, 2015
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuhiko Isogawa, Seiichiro Endo
  • Patent number: 8921028
    Abstract: A salt represented by the formula (I) and a resist composition containing the salt are provided, wherein Q1, Q2, L1, ring W1, Re1, Re2, Re3, Re4, Re5, Re6, Re7, Re8, Re9, Re10, Re11, Re12, Re13 and Z are defined in the specification.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: December 30, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Satoshi Yamaguchi, Koji Ichikawa
  • Patent number: 8906589
    Abstract: The present invention provides a salt represented by the formula (I): wherein R1 and R2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, X1 represents a C1-C17 divalent saturated hydrocarbon group in which one or more —CH2— can be replaced by —O— or —CO— and which can have one or more fluorine atoms, R3 represents a hydrogen atom or a methyl group, and Z1+ represents an organic counter cation, and a photoresist composition containing the same.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: December 9, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Koji Ichikawa, Hiromu Sakamoto
  • Publication number: 20140235565
    Abstract: The present invention provides N-alkylthio ?-lactams and disulfide compounds (e.g., alkyl-coenzyme A asymmetric disulfides or aryl-alkyl disulfides), compositions containing such compounds, and methods of their use as anti-bacterial agents.
    Type: Application
    Filed: May 1, 2014
    Publication date: August 21, 2014
    Applicant: UNIVERSITY OF SOUTH FLORIDA
    Inventors: EDWARD TUROS, KEVIN D. REVELL
  • Patent number: 8765352
    Abstract: A positive resist composition including a base component (A) which exhibits changed solubility in an alkali developing solution under the action of acid and an acid-generator component (B) which generates acid upon exposure, wherein the acid-generator component (B) includes an acid generator (B1) containing a compound represented by general formula (b1-1) shown below (wherein Z+ represents an organic cation).
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: July 1, 2014
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Yoshiyuki Utsumi, Takehiro Seshimo
  • Patent number: 8685617
    Abstract: A salt represented by the formula (I): wherein Q1, Q2, L1, L2, ring W, s, t, R1, R2 and Z+ are defined in the specification.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 1, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Koji Ichikawa, Isao Yoshida, Yuki Suzuki
  • Patent number: 8470197
    Abstract: A crosslinked polysulfide-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: [(CaH2a-)mG1(-CbH2bSx—)n?m]o[CcH2c-G2-CdH2dSy—]p[R]q wherein G1 is a saturated, monocyclic aliphatic group of valence n containing from 5 to 12 carbon atoms and optionally containing at least one halogen or a saturated monocyclic silicone [RSiO—]n[R2SiO—]r group of valence n; G2 is a saturated, divalent cyclic aliphatic group of valence 2 containing from 5 to 12 carbon atoms and optionally containing at least one halogen or a saturated monocyclic silicone [RSiO—]n[R2SiO—]r group of valence n; each R independently is a selected from the group consisting of a hydrogen atom, monovalent hydrocarbon of up to 20 carbon atoms and a halogen atom; each occurrence of subscripts a, b, c, d, m, n, o, p, q, x and y independently is an integer wherein a is 2 to 6; b is 2 to 6; c is 1 to 6; d is 1 to 6; m is 1 or 2; n is 3 to 5; o is a positive
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: June 25, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Richard W. Cruse, William Michael York, Carla Recker, Thomas Kramer, Katharina Herzog
  • Patent number: 8466324
    Abstract: It is an object of the present invention to provide an aprotic polar solvent mainly useful as a solvent for an electrochemical device, and having a comparatively low melting point and excellent thermal stability. The present invention is a sulfone compound represented by formula (1), wherein, in formula (1), R1 represents a C6-C8 branched-chain alkyl group.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: June 18, 2013
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Takeshi Takeuchi, Takehiro Hiyama, Chun Li, Toshihiko Kanki
  • Publication number: 20130123514
    Abstract: The disclosure relates to catalytically active carbocatalysts, e.g., a graphene oxide or graphite oxide catalyst suitable for use in a variety of chemical transformations. In one embodiment, it relates to a method of catalyzing a chemical reaction of an organic molecule by reacting the organic molecule in the presence of a sufficient amount of graphene oxide or graphite oxide for a time and at a temperature sufficient to allow catalysis of a chemical reaction. According to other embodiments, the reaction may be an oxidation reaction, a hydration reaction, a dehydrogenation reaction, a condensation reaction, or a polymerization reaction. Some reactions may include auto-tandem reactions. The disclosure further provides reaction mixtures containing an organic molecule and graphene oxide or graphite oxide in an amount sufficient to catalyze a reaction of the organic molecule.
    Type: Application
    Filed: May 27, 2011
    Publication date: May 16, 2013
    Applicant: GRAPHEA, INC.
    Inventors: Christopher W. Bielawski, Daniel R. Dreyer, Hong-Peng Jia
  • Patent number: 8399709
    Abstract: The subject of the present invention is a method for the sulphonylation of a hydroxylated organic compound. The invention relates more particularly to a method for the trifluoromethanesulphonylation of a hydroxylated organic compound. The invention is especially intended for perfluorinated aliphatic hydroxylated compounds. The method of the invention for the sulphonylation of a hydroxylated organic compound is characterized in that it comprises reacting said compound with a sulphonylation agent in an organic medium and in the presence of a heterogeneous inorganic base.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: March 19, 2013
    Assignee: Rhodia Operations
    Inventor: François Metz
  • Patent number: 8101802
    Abstract: Diallylic polysulfides (polysulfanes) are provided with sulfur chain lengths of 9 to 22. Also provided are bis(2-methyl-2-propenyl) polysulfides with sulfur chain lengths of 3 to 22. Also provided are 2-substituted bis(2-propenyl) polysulfides with sulfur chain lengths of 3 to 20. Also provided are the 2-cycloalken-1-yl polysulfides, 2-cyclohexen-1-yl polysulfides and 2-cyclopenten-1-yl polysulfides, with sulfur chain lengths of 3 to 20. Also provided are processes for extending the sulfur chain length of diallylic polysulfides and 2-substituted analogues thereof and allyl methyl polysulfides by bringing such compounds into contact with elemental sulfur and heating, or by mixing with molten sulfur.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: January 24, 2012
    Assignee: ECOspray Limited
    Inventors: Murree Groom, Eric Block
  • Patent number: 7851657
    Abstract: The invention provides a synthetic and manufacturing process for the preparation of the anticancer drug, fluorapacin, bis(4-fluorobenzyl)trisulfide, and related trisulfide derivatives on large scale. Also provided are processes for the purification and isolation of fluorapacin having high purity and improved stability.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 14, 2010
    Assignee: Acea Biosciences, Inc.
    Inventors: Haoyun An, Xiaopeng Mo
  • Publication number: 20100274037
    Abstract: Diallylic polysulfides (polysulfanes) are provided with sulfur chain lengths of 9 to 22. Also provided are bis(2-methyl-2-propenyl) polysulfides with sulfur chain lengths of 3 to 22. Also provided are 2-substituted bis(2-propenyl) polysulfides with sulfur chain lengths of 3 to 20. Also provided are the 2-cycloalken-1-yl polysulfides, 2-cyclohexen-1-yl polysulfides and 2-cyclopenten-1-yl polysulfides, with sulfur chain lengths of 3 to 20. Also provided are processes for extending the sulfur chain length of diallylic polysulfides and 2-substituted analogues thereof and allyl methyl polysulfides by bringing such compounds into contact with elemental sulfur and heating, or by mixing with molten sulfur.
    Type: Application
    Filed: November 12, 2007
    Publication date: October 28, 2010
    Inventors: Murree Groom, Eric Block
  • Publication number: 20100191016
    Abstract: The invention provides a synthetic and manufacturing process for the preparation of the anticancer drug, fluorapacin, bis(4-fluorobenzyl)trisulfide, and related trisulfide derivatives on large scale. Also provided are processes for the purification and isolation of fluorapacin having high purity and improved stability.
    Type: Application
    Filed: March 27, 2009
    Publication date: July 29, 2010
    Applicant: ACEA BIOSCIENCES, INC.
    Inventors: Haoyun An, Xiaopeng Mo
  • Publication number: 20100130555
    Abstract: A method for treating or preventing injury of a biological material exposed to hypoxic or ischemic conditions comprising contacting the biological material with an effective amount of a compound is disclosed. The compound has the following structure (I): R1—(S)n—R2 ??(I) or a stereoisomer, pharmaceutically acceptable salt or prodrug thereof, wherein R1, R2, and n are as defined herein. Compounds, methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
    Type: Application
    Filed: October 16, 2009
    Publication date: May 27, 2010
    Applicant: Ikaria, Inc.
    Inventors: Edward A. Wintner, Fuqiang Ruan
  • Publication number: 20080039660
    Abstract: Novel substituted phenylsulfur trifluorides that act as fluorinating agents are disclosed. Also disclosed are methods for their preparation and methods for their use in introducing one or more fluorine atoms into target substrate compounds. Finally, various intermediate compounds for use in preparing substituted phenylsulfur trifluorides are provided.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 14, 2008
    Applicant: IM&T RESEARCH, INC.
    Inventors: TERUO UMEMOTO, RAJENDRA P. SINGH
  • Patent number: 7119232
    Abstract: (Benzenesulfonyl)difluoromethyl anion, in situ generated from difluoromethyl phenyl sulfone and a base, was found to easily undergo nucleophilic substitution reactions (SN2) with primary alkyl halides, elemental halogens, and perfluoroalkyl halides with good selectivity. The formed (benzenesufonyl)difluoromethylalkanes are useful intermediates for the facile preparation of 1,1-difluoro-1-alkenes and difluoromethylalkanes.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: October 10, 2006
    Assignee: University of Southern California
    Inventors: G. K. Surya Prakash, Jinbo Hu, George A. Olah, Ying Wang
  • Patent number: 7094501
    Abstract: Disclosed are compositions prepared by free-radical-driven grafting onto hydrocarbons or hydrocarbon ethers of olefinically unsaturated fluorocarbons containing sulfonyl fluoride, fluorosulfonate, fluorosulfonimide, or fluorosulfonyl methide groups, wherein the grafting step is followed by a hydrolysis step in the case of sulfonyl fluoride.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: August 22, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hanne Anna Katharina Blau, Pui-Yan Lin, José Manuel Rodriguez-Parada
  • Patent number: 6933412
    Abstract: The invention is directed to aromatic vinyl sulfide compounds of general formula A(—S—CH?CH2)z, wherein z is in the range of 1-4 and A represents highly halogenated and highly halogenated-deuterated phenyl, biphenyl and naphthalene compounds; highly halogenated and highly halogenated-deuterated biphenyl ethers and thioethers; and highly halogenated and highly halogenated-deuterated unsaturated 5- and 6-member heterocyclic ring systems containing carbon and at least one heteroatom selected from the group consisting of nitrogen, oxygen and sulfur. The aromatic vinyl sulfide compounds of the invention can be used to prepare elements and devices suitable for use in optical communications.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: August 23, 2005
    Assignee: Corning Incorporated
    Inventors: Thomas M. Leslie, Helen Samson
  • Patent number: 6887624
    Abstract: Disclosed are compositions prepared by free-radical-driven grafting onto hydrocarbons or hydrocarbon ethers of olefinically unsaturated fluorocarbons containing sulfonyl fluoride, fluorosulfonate, fluorosulfonimide, or fluorosulfonyl methide groups, wherein the grafting step is followed by a hydrolysis step in the case of sulfonyl fluoride.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 3, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hanne Anna Katharina Blau, Pui-Yan Lin, José Manuel Rodriguez-Parada
  • Patent number: 6787242
    Abstract: Adhesion promoters for polymer coatings on metals are articulated into at least two head groups connected by a hydrocarbon spacer group. One head group reacts particularly well with polymer molecules. Other head groups form a durable bond with a metal surface. The length of the spacer group is such that a substance deposited in a substance layer on a metallic surface of a body or particle has hydrophobic properties. Suitable adhesion promoters can be sulfur compounds, amino compounds, hydroxyl or carbonyl compounds. A plastic composite body, a compound and a process of preparing a compound are also provided.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: September 7, 2004
    Assignee: Infineon Technologies AG
    Inventors: Alexandra Atzesdorfer, Rainer Müller, Klaus Heckmann, Friederike Bauer
  • Patent number: 6756497
    Abstract: Benzoic acid derivatives useful as intermediates for the preparation of drugs and agricultural chemicals, particularly compounds having herbicidal activity; and easy and economical processes for the preparation of the same. The processes are specifically those represented by reaction formula for the preparation of compounds represented by general formulae (1) and (6).
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: June 29, 2004
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Yuuki Nakagawa, Masao Yamaguchi, Hiroyuki Adachi, Hiroyuki Yamanaka, Tomio Yagihara, Masami Hatano
  • Publication number: 20040015019
    Abstract: In the process according to the invention for the manufacture of an alkanesulphonyl chloride RCH2—SO2Cl by oxidative chlorolysis of the corresponding mercaptan RCH2—SH, the mercaptan and water are introduced into the reaction mixture in the form of a dispersion of water in the mercaptan.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 22, 2004
    Inventors: Jean Ollivier, Gisele Haurat
  • Patent number: 6656968
    Abstract: Compounds of the formula are provided wherein R1, R2, R3 and R4 are independently selected from the group consisting of hydrogen, halogen, hydroxyl, C1-C8 alkyl, C1-C6 alkoxy, nitro, cyano, acetoxy, amino, carboxy, sulfamyl, lower acylsulfamyl and trifluoromethyl. The compounds are inhibitors of cyclooxygenase-2 activity, useful for treating inflammation and cyclooxygenase-mediated disorders.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: December 2, 2003
    Assignee: Temple University - Of the Commonwealth System of Higher Education
    Inventors: E. Premkumar Reddy, M. V. Ramana Reddy
  • Publication number: 20030060665
    Abstract: This invention is directed to a process for producing a bishalophenyl disulfide, chracterized by reacting a halothiophenol with an alkali metal hydroxide to obtain an alkali metal halothiophenolate and subsequently converting the halothiophenolate into a disulfide with an oxidizing agent in the presence of a mineral acid. By the process, a bishalophenyl disulfide having a high purity can be industrially produced in high yield.
    Type: Application
    Filed: September 20, 2002
    Publication date: March 27, 2003
    Inventors: Takehiro Hiyama, Hitoshi Karino, Shinji Nii
  • Patent number: 6482988
    Abstract: A liquid crystalline sulfur compound exhibiting high anisotropic factor of dipolemoment is provided. A terphenyl skeleton sulfur compound expressed by the general formula (I) is provided. A compound is preferred wherein, in the general formula (I), m is 1, n is 5 to 18, and R3 is an alkyl group wherein the number of carbon atoms is n or fewer than n. A method of synthesisng the terphenyl skeleton sulfur compound wherein, after implementing the synthesizing processes for a methoxy terphenyl derivative, a hydroxy terphenyl derivative, and terphenyl alkyloxy bromide derivative, that bromide derivative and thiourea are caused to react, etc. A self-assembled monolayer made using the terphenyl skeleton sulfur compound noted above is also provided.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: November 19, 2002
    Assignees: Seiko Epson Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Hitoshi Fukushima, Takashi Tamaki
  • Patent number: 6444853
    Abstract: This invention relates to a process for the preparation of aromatic disulfides represented by the formula (II): Yn—Ar—S—S—Ar—Yn  (II) wherein Ar represents a hydrocarbon aromatic ring group; Y represents a monovalent electrophilic group, and when n is 2 or more, a plural number of Y's may be the same or different from each other; and n is an integer of 1 to 12, which comprises allowing (A) an aromatic thioether represented by the formula (I): Yn—Ar—S—R  (I) wherein Y, Ar and n have the same meanings as defined above; and R represents a monovalent hydrocarbyl group selected from the group consisting of a monovalent tertiary hydrocarbyl group, and benzyl group and a monovalent secondary hydrocarbyl group derived from benzyl group; to react with (B) at least one of the following (1) to (4): (1) bromine; (2)(a) hydrogen bromide and (b) hydrogen peroxide; (3)(c) chlorine, in the presence of a catalytic amount of iodine and/or hydr
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: September 3, 2002
    Assignee: Nippon Finechemical Co., Ltd.
    Inventors: Isamu Arai, Tutomu Yamaguchi, Yoko Hida
  • Publication number: 20020006957
    Abstract: This invention provides certain compounds, methods of their preparation, pharmaceutical compositions comprising the compounds, their use in treating human or animal disorders. The compounds of the invention are useful as modulators of the interaction between the receptor for advanced glycated end products (RAGE) and its ligands, such as advanced glycated end products (AGEs), S100/calgranulin/EN-RAGE, &bgr;-amyloid and amphoterin, and for the management, treatment, control, or as an adjunct treatment for diseases in humans caused by RAGE. Such diseases or disease states include acute and chronic inflammation, the development of diabetic late complications such as increased vascular permeability, nephropathy, atherosclerosis, and retinopathy, the development of Alzheimer's disease, erectile dysfunction, and tumor invasion and metastasis.
    Type: Application
    Filed: March 5, 2001
    Publication date: January 17, 2002
    Inventors: Adnan M.M. Mjalli, Ramesh Gopalaswamy, Kwasi S. Avor, Christopher L. Wysong, Andrew Patron
  • Publication number: 20010044552
    Abstract: A liquid crystalline sulfur compound exhibiting high anisotropic factor of dipolemoment is provided. A terphenyl skeleton sulfur compound expressed by the general formula (I) is provided. A compound is preferred wherein, in the general formula (I), m is 1, n is 5 to 18, and R3 is an alkyl group wherein the number of carbon atoms is n or fewer than n. A method of synthesisng the terphenyl skeleton sulfur compound wherein, after implementing the synthesizing processes for a methoxy terphenyl derivative, a hydroxy terphenyl derivative, and terphenyl alkyloxy bromide derivative, that bromide derivative and thiourea are caused to react, etc. A self-assembled monolayer made using the terphenyl skeleton sulfur compound noted above is also provided.
    Type: Application
    Filed: February 23, 2001
    Publication date: November 22, 2001
    Inventors: Hitoshi Fukushima, Takashi Tamaki
  • Patent number: 6013839
    Abstract: The invention relates to a process for preparing a 2-(thiosubstituted)-4-haloacetophenone such as those of formula (I), which comprises reacting a 2,4-dihaloacetophenone with a thiolating agent under substantially anhydrous conditions. In formula (I), R.sup.1 and R.sup.2 have the meanings given in the description and R.sup.3 is halogen. The compounds prepared are useful as intermediates in the preparation of herbicidally active compounds.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: January 11, 2000
    Assignee: Rhone-Poulenc Agriculture Limited
    Inventor: Susan Mary Cramp
  • Patent number: 5998670
    Abstract: Disclosed is a method of making a substituted diphenyldisulfide from a substituted thiophenol. A two phase reaction mixture is prepared which comprises a substituted thiophenol having the general formula ##STR1## hydrogen peroxide, water, an organic solvent, a basic salt that will give a pH between about 7 and about 10, and an optional flocculating agent. In the formula, R is selected from the group consisting of halogen, alkyl from C.sub.1 to C.sub.6, alkoxy from C.sub.1 to C.sub.6, or nitro. After the exothermic reaction is complete, the reaction mixture is cooled to crystallize the substituted diphenyldisulfide product. The symmetrical product precipitates preferentially over the unsymmetrical product, thereby enhancing the purity of the product over the purity of the starting material. Optionally, the organic solvent and the aqueous phase are recycled.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: December 7, 1999
    Assignee: Occidental Chemical Corporation
    Inventors: David Y. Tang, Michael C. Hausladen, Viktor D. Sorokin
  • Patent number: 5403961
    Abstract: A process for preparing a stabilized and deodorized organic polysulfide compound is provided which comprises contacting a crude polysulfide, in the presence of a solvent, optionally further in the presence of a basic compound, with a metal salt of an inorganic acid or a metal salt of an organic acid under conditions sufficient to produce the stabilized and deodorized polysulfide.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: April 4, 1995
    Assignee: Phillips Petroleum Company
    Inventor: James E. Shaw
  • Patent number: 5352785
    Abstract: A process for the purification of a perfluorochemical composition comprises continuously mixing the perfluorochemical composition, comprising a liquid mixture of inert perfluorochemicals (e.g., perfluoroalkanes, perfluoroethers, perfluoroaminoethers, or perfluoroalkyl tertiary amines) and isomeric fluorohydrochemicals, with a stabilization composition comprising water-miscible alkanol and an aqueous solution of base (such as potassium hydroxide) made by dissolving the base in an amount of water sufficient to dissolve or disperse the fluoride salt by-products of the subsequent reaction of the base with the fluorohydrochemicals to form fluoroolefins, the amount of the alkanol in the stabilization composition being in stoichiometric excess of the amount needed to completely convert the fluoroolefins to alkoxyvinyl ethers. The process can be utilized to purify the product mixtures resulting from fluorination methods such as direct fluorination or ECF.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: October 4, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas C. Herzberg, Robert B. Fletcher, Randall F. Henderson
  • Patent number: 5350878
    Abstract: This invention provides 1) novel reactive fluorinated compounds derived from a specified class of telomers or cotelomers of fluoroolefins; and 2) stable products and stable polymers thereof obtained by reaction or polycondensation of the novel reactive fluorinated compounds with specified classes of hydrogenated aliphatic, alicyclic, aromatic reactive compounds, telechelic oligomers and block polymers wherein said stable products and polymers contain hetero atoms such as oxygen, sulfur or nitrogen and are characterized by high thermal and chemical resistance.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: September 27, 1994
    Assignee: Dow Corning Corporation
    Inventor: Gerardo Caporiccio
  • Patent number: 5347015
    Abstract: Disulfides of the general formulaX.sup.1 --(CH.sub.2).sub.n --S--S--(CH.sub.2).sub.n --X.sup.2where X.sup.1 and X.sup.2 are identical to one another and are each --Br, --N-phthalimide, --NH.sub.2, --OOC--(CH.sub.2).sub.3 --COOH, --OSO.sub.2 --CH.sub.3, --NH--(CH.sub.2).sub.2 --NH.sub.2, --SO.sub.3 H or --SO.sub.3.sup.- M.sup.+ in which M.sup.+ is an alkali metal ion and n is from 11 to 25, or X.sup.1 is --OH and X.sup.2 is --Br or X.sup.1 and X.sup.2 are each --COO--CH.sub.2 --CH.sub.3 and n is from 10 to 25, are suitable for the production of monomolecular layers on noble metal substrates and for the production of multimolecular layers.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: September 13, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Keller, Wolfgang Schrepp, Harald Fuchs
  • Patent number: 5225586
    Abstract: The invention relates to benzocyclobutene capped benzotrifluoride based fluoroaryl ether compounds which are useful in preparing semi-permeable membranes, and films and coatings useful in electronic applications.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: July 6, 1993
    Assignee: The Dow Chemical Company
    Inventors: Theodore L. Parker, Thomas W. Regulski
  • Patent number: 4997591
    Abstract: The chiral smetic liquid-crystalline compounds of the general formula (I)M.sub.1.sup.* --B--M.sub.2.sup.* (I)solidify on cooling from the liquid-crystalline phase in glassy form, as a result of which they are suitable for materials for displaying and storing information. Such materials may be used in electro-optic data stores or display components which are based on the ferroelectric or electroclinic switching effect in a chiral or chirally doped, smetic liquid-crystalline phase.In the general formula, M.sub.1.sup.*, M.sub.2.sup.* stand for chiral smetogenic groups and --B-- is, as bridging link, a typical bivalent group.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: March 5, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerd Heppke, Feodor Oestreicher
  • Patent number: 4745226
    Abstract: Polychlorinated polyphenyl materials are reacted with sulfur in the presence of an effective amount of a sulfur chloride compound to result in a product having a lowered residue of chlorinated polyphenyl as compared to a reaction practiced without the use of the compound.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: May 17, 1988
    Assignee: Stauffer Chemical Company
    Inventor: Kyung S. Shim
  • Patent number: 4670470
    Abstract: Organic sulfoxides having a latent allyl group bound to the sulfur are enzyme inhibitors of the suicide or K.sub.cat type.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: June 2, 1987
    Assignee: Merck & Co., Inc.
    Inventor: Raymond A. Firestone
  • Patent number: 4558071
    Abstract: Organic sulfoxides having a latent allyl group bound to the sulfur are enzyme inhibitors of the suicide or K.sub.cat type.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: December 10, 1985
    Assignee: Merck & Co., Inc.
    Inventor: Raymond A. Firestone
  • Patent number: 4388475
    Abstract: Organic sulfoxides having a latent allyl group bound to the sulfur are enzyme inhibitors of the suicide or K.sub.cat type.
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: June 14, 1983
    Assignee: Merck & Co., Inc.
    Inventor: Raymond A. Firestone
  • Patent number: 4374783
    Abstract: The new compounds, O,O dialkyl S-(2,3,4 trihalo) butyl phosphorothioates, are prepared by reacting 2,3,4 trihalo-butyl sulfenyl chloride with O,O dialkyl hydrogen phosphites, or other salts. The compounds of this invention have pesticidal activity, especially insecticidal and nematocidal activity.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: February 22, 1983
    Inventor: Seong T. Hwang
  • Patent number: 4340762
    Abstract: A method of preparing bis(trifluoromethyl) disulfide, which comprises contacting, in the gaseous state, 2,2,4,4-tetrakis(trifluoromethyl)-1,3-dithietane with activated carbon catalyst at elevated temperature is disclosed.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: July 20, 1982
    Assignee: Allied Corporation
    Inventors: Louis G. Anello, Richard F. Sweeney