Carbocyclic Ring Contains Six Carbon Atoms Patents (Class 570/131)
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Patent number: 5183587Abstract: A liquid crystal compound having a relatively low viscosity, a superior compatibility with other liquid crystalline compounds and suitable for preparing a liquid crystal device having a high response rate, and a superior liquid crystal composition containing the compound are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 is H, F, Cl, CN or 1-20C alkyl or alkenyl in which alkenyl one --CH.sub.2 -- group or two not adjacent --CH.sub.2 -- groups may be replaced by --O-- and in which alkenyl the position and number of the double bond may be optionally chosen; A.sup.1, A.sup.2 and A.sup.3 are ##STR2## the H atom(s) of which ##STR3## may be replaced by F, Cl or methyl; B.sup.1 and B.sup.2 are --CH.sub.2 CH.sub.2 --, --CH.sub.2 O--, --OCH.sub.2 -- or single bond; n is 0 or 1; and m is 0 to 20.Type: GrantFiled: December 22, 1989Date of Patent: February 2, 1993Assignee: Chisso CorporationInventors: Kisei Kitano, Makoto Ushioda, Manabu Uchida, Toshiharu Suzuki
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Patent number: 5149891Abstract: The present invention relates to a method for preparing a pitch fluoride, which comprises reacting pitch with fluorine in a fluorine type inert medium.Type: GrantFiled: April 10, 1991Date of Patent: September 22, 1992Assignee: Osaka Gas Company LimitedInventors: Takeshi Morimoto, Mikio Sasabe, Toshiyuki Maeda, Hiroyuki Fujimoto
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Patent number: 5146014Abstract: A novel composition of matter is disclosed comprising perfluorinated, ethyldimethyl cyclohexane. The compound has unique utilities in vapor phase heating and soldering, oxygen transport for biological fluids and other requirements for an inert, stable fluid.Type: GrantFiled: July 2, 1991Date of Patent: September 8, 1992Assignee: Air Products and Chemicals, Inc.Inventors: John K. Graybill, Gregory B. George
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Patent number: 5001163Abstract: An organic polymeric material, which is preferably perfluorinated and which comprises a polymeric chain and at least one group pendant from the chain, in which the group pendant from the chain comprises a saturated cyclic group and at least one ion-exchange group or group convertible thereto, and in which the ion-exchange group or group convertible thereto is linked to the polymeric chain through the cyclic group. Also an ion-exchange membrane produced from the polymeric material, an electrolytic cell containing the membrane, vinyl monomers from which the organic polymeric material may be produced and intermediates useful in production of the monomers.Type: GrantFiled: March 1, 1989Date of Patent: March 19, 1991Assignee: Imperial Chemical Industries PLCInventors: Harold C. Fielding, Philip H. Gamlen, Ian M. Shirley
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Patent number: 4950814Abstract: Disclosed is a novel fluorocarbon comprising carbon atoms and fluorine atoms and having no double bond, the atomic ratio of fluorine to carbon atoms being 1.50 to 1.93, which exhibits a liquid state at room temperature. The liquid fluorocarbon has excellent water- and oil-repellent properties and can advantageously be used, for example, not only as a water- and oil-repellent but also as an inert liquid, a heat transfer agent and a vapor phase soldering liquid in various fields, especially in the electronic industry. The liquid fluorocarbon can be obtained directly from a pitch or from a pitch fluoride which can be obtained by direct fluorination of a pitch.Type: GrantFiled: October 26, 1989Date of Patent: August 21, 1990Assignee: Osaka Gas Company LimitedInventors: Toshiyuki Maeda, Akihiro Mabuchi, Hiroyuki Fujimoto
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Patent number: 4846998Abstract: Cyclohexane derivatives of the formula IR.sup.1 --A.sup.1 --Z.sup.1 --A.sup.2 --R.sup.2 Iin whichR.sup.1 and R.sup.2 are each an alkyl group having 1-10 C atoms, in which one or two non-adjacent CH.sub.2 groups can also be replaced by O atoms and/or --CO-- groups and/or --CO--O-- groups and/or --CH.dbd.CH-- groups, one of the radicals R.sup.1 and R.sup.2 also being H, F, Cl, Br, CN or R.sup.3 --A.sup.3 --Z.sup.2 --,A.sup.1 is --A--, A.sup.4 --A-- or --A--A.sup.4 --,A is a trans-1,4-cyclohexylene group which can be substituted in the 2-, 3-, 5- and/or 6-position one or more times by F and/or Cl and/or Br and/or CN and/or an alkyl group or a fluorinated alkyl group which each have 1-10 C atoms and in which one or two non-adjacent CH.sub.2 groups can also be replaced by 0 atoms and/or --CO-- groups and/or --CO--O-- groups, and which may also be substituted in the 1- and/or 4-position,A.sup.2, A.sup.3 and A.sup.Type: GrantFiled: November 21, 1986Date of Patent: July 11, 1989Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Ludwig Pohl, Bernhard Scheuble, Reinhard Hittich, Rudolf Eidenschink, Hans A. Kurmeier, Andreas Wachtler
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Patent number: 4792618Abstract: Fluoro-substituted carbocyclic compounds are prepared by(A) reacting hydrogen fluoride with a chloro-cyclohexenyl compound of the formula ##STR1## where R.sub.1 and R.sub.2 are independently selected from the group consisting of --H, --CH.sub.2 OH, --COF, --COCl, --CF.sub.3, --CN, ##STR2## and --CH.sub.2 R, where R is --H or alkyl of 1-4 carbon atoms, to form a gem-dihalocyclohexane compound of the formula ##STR3## where X is chlorine and R.sub.1 and R.sub.Type: GrantFiled: December 12, 1984Date of Patent: December 20, 1988Assignee: Occidental Chemical CorporationInventors: Joseph F. Bieron, David Y. Tang
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Patent number: 4627933Abstract: Compounds of the formulaR.sup.1 --Q.sup.1 --(CH.sub.2).sub.m --(COO).sub.n --(CH.sub.2).sub.p --Q.sup.2 --R.sup.2whereinR.sup.1 and R.sup.2 are each independently alkyl or alkoxy each of 1-12 C atoms, F, Cl, Br, CN or --Q.sup.3 --R.sup.3, or one of R.sup.1 and R.sup.2 can also be H;Q.sup.1, Q.sup.2 and Q.sup.3 are each independently 1,4-phenylene, 1,4-cyclohexylene, 1,4-bicyclo(2,2,2)-octylene or 1,3-dioxane-2,5-diyl, each of which is unsubstituted or substituted by 1-4 fluorine, chlorine or bromine atoms;R.sup.3 is alkyl or alkoxy each of 1-8 C atoms, H, F, Cl, Br or CN;m is 1, 2, 3, 4, 5 or 6; n is 0 or 1; and p is 0, 1, 2, 3, 4 or 5; the sum of (m+p) being 2, 4 or 6 and the sum of (m+n+p) being at least 3;but with the proviso that Q.sup.3 is unsubstituted 1,4-phenylene or 1,4-phenylene substituted by a fluorine, chlorine or bromine atom, only when n=1 or (m+p)=6 or at least one of R.sup.1 or R.sup.3 is F, Cl or Br or none of R.sup.1 to R.sup.3 is CN or two of the radicals R.sup.1 to R.sup.Type: GrantFiled: July 7, 1983Date of Patent: December 9, 1986Assignees: Merck Patent Gesellschaft mit beschrankter Haftung, The Secretary of State for Defense in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Rudolf Eidenschink, Joachim Krause, Beatrice M. Andrews, George W. Gray, Neil Carr
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Patent number: 4622163Abstract: New anisotropic compounds with a cross-polarizing substituent have the formula (1) ##STR1## The increase in .epsilon..perp. is achieved by the polarizing group X, preferably the cyano group or a halogen atom, which is not laterally on the ring, as with the known compounds, but is on the bridge, that is to say is part of the main bridge bonding rings A and B to one another. Ring A has the formula (1a) or (1b) given herein and is always cycloaliphatic, while ring B can be identical to ring A or is an aromatic ring of the formula (1c) or (1d) herein. R.sup.1 and R.sup.2 are identical or different end groups of the formula (1e) herein. The radical X on the bridge causes less widening of the molecule than a radical X on a ring, which provides comparatively higher clear points and moreover enables aromatic rings to be omitted from the anisotropic compounds.Type: GrantFiled: September 10, 1984Date of Patent: November 11, 1986Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Tuong Huynh-Ba, Maged A. Osman
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Patent number: 4473503Abstract: This invention relates to the 15-fluoro-retinoid compounds which provide vitamin A activity with reduced liver storage. A preferred compound is retinoyl fluoride.Type: GrantFiled: November 23, 1982Date of Patent: September 25, 1984Assignee: Iowa State University Research Foundation, Inc.Inventors: Arun B. Barua, James A. Olson
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Patent number: 4453028Abstract: This invention relates to perfluorinated compounds with cyclohexyl groups. Such compounds are useful as synthetic blood substitutes and perfusion media, and for other purposes, and in emulsions which contain such compounds. A method is disclosed for direct fluorination without creating excessive unwanted byproducts. Hydrocarbon starting compounds used in this invention may be purchased or synthesized. The compounds created by the methods of this invention include perfluorinated tetraphenylmethane, perfluorinated diphenylmethane, and perfluorinated t-butylcyclohexane.Type: GrantFiled: March 29, 1982Date of Patent: June 5, 1984Inventor: Richard J. Lagow
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Patent number: 4330475Abstract: A method and apparatus for improving direct fluorinations are disclosed in which the material to be fluorinated is formed into an aerosol prior to fluorination.Type: GrantFiled: December 6, 1979Date of Patent: May 18, 1982Inventors: James L. Adcock, Ehrengard B. Renk