Unsaturated Carbocyclic Ring Containing Patents (Class 556/489)
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Patent number: 5965761Abstract: The invention provides novel cross-linkable, photoactive silane derivatives and mixtures with 3-aryl-acrylic acid esters and amides. The present invention also provides orienting layers for liquid crystals, and non-structured and structured optical elements and multi-layer systems based on the silane mixtures and derivatives.Type: GrantFiled: October 24, 1997Date of Patent: October 12, 1999Assignee: Rolic AGInventors: Richard Buchecker, Fran.cedilla.ois Herzog, Guy Marck, Andreas Schuster
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Patent number: 5886202Abstract: Bridged fluorenyl/indenyl metallocenes having substituents at the 3 position of the indenyl and the use thereof in the polymerization of olefins are disclosed. Also a new method for preparing bridged fluorenyl/indenyl ligands wherein the indenyl has a substituent in the 3 position and the preparation of metallocenes with such ligands.Type: GrantFiled: September 12, 1997Date of Patent: March 23, 1999Inventors: Michael Jung, Helmut G. Alt, M. Bruce Welch
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Patent number: 5880306Abstract: Silyl cation of the formula Si.sup.+ R.sub.2 R' wherein R denotes a hydrogen, a hydrocarbon or fluorine and R' denotes a norbornyl or cyclopentenyl containing substituent is free of co-ordination with a solvent and is stable at a temperature of upto at least 40.degree.C. Also disclosed is a compound consisting of the cation and a borate or carborane anion, a composition comprising the cation and a solvent and a process for making the cation.Type: GrantFiled: August 26, 1997Date of Patent: March 9, 1999Assignee: Dow Corning, Ltd.Inventor: Norbert Auner
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Patent number: 5874603Abstract: A branched alkylsilane includes a branched hydrocarbon backbone which has a linear or branched alkylsilyl moiety extending asymmetrically from the backbone such that the backbone has a first portion and a second portion extending from the moiety. The second portion has two carbon atoms more than the first portion, and the alkylsilyl moiety includes at least one hydrolyzable group bound to silicon for reacting with a substrate. A method for preparing a branched alkylsilane useful for chromatographic applications includes the steps of preparing a vinylidene olefin by dimerization of an .alpha.-olefin and reacting it with a monomeric silane having a silicon-hydrogen bond in the presence of a metallic catalyst such that the silicon-hydrogen bond is added to the vinylidene double bond of the vinylidene olefin thereby converting the double bond to a single bond and bonding the silicon of the monomeric silane to the vinylidene olefin to form a branched alkylsilane.Type: GrantFiled: July 15, 1997Date of Patent: February 23, 1999Assignee: Gelest, Inc.Inventor: Barry C. Arkles
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Patent number: 5859277Abstract: A compound of the formula ##STR1## where R is a solid support; R.sub.1 and R.sub.2 are alkyl, unsubstituted alkyl, or phenyl, and where R.sub.1 and R.sub.2 can be the same or different, for use in solid-phase synthesis.Type: GrantFiled: June 25, 1997Date of Patent: January 12, 1999Assignee: Wisconsin Alumni Research FoundationInventors: Howard W. Whitlock, Karin Kay Maxson
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Patent number: 5856547Abstract: An (organo) (omega-alkenyl) (cyclopentacarbyl) silane compound is provided. A process that produces an (organo) (omega-alkenyl) (cyclopentacarbyl) silane compound is provided. A process to polymerize olefins, especially ethylene, with a metallocene compound that comprises an (organo) (omega-alkenyl) (cyclopentacarbyl) silane compound is provided.Type: GrantFiled: October 28, 1997Date of Patent: January 5, 1999Assignee: Phillips Petroleum CompanyInventors: Michael Jung, Helmut G. Alt, M. Bruce Welch
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Patent number: 5847182Abstract: The present invention relates to fluorenyl substituted organosilanes represented by the formula I and preparation methods thereof by reacting substituted biphenyls represented by the formul II with (dichloroalkyl)silanes represented by the formul III in the presence of Lewis acid catalysts such as aluminum chloride: ##STR1## (wherein m is 0 or 1 and n is 0, 1, or 2. y1 and y2 represent hydrogen, bromo, phenyl and they can be same or different. R represents hydrogen or methyl group. R.sub.j.sup.- can be dichloromethyl, 2,2-dichloroethyl, 3,3-dichloropropyl, 1,2-dichloroethyl, 2,3-dichloropropyl, 2,3-dichlorobutyl).Type: GrantFiled: March 19, 1998Date of Patent: December 8, 1998Assignee: Korea Institue of Science and TechnologyInventors: Il Nam Jung, Bok Ryul Yoo, Joon Soo Han, Yeon Seok Cho
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Patent number: 5840718Abstract: The invention relates to a compound of the formula ##STR1## wherein R is hydroxy and R.sup.1 is H.sub.2 or .dbd.CH.sub.2 or R is hydrogen or fluoro and R.sup.1 is .dbd.CH.sub.2 and (b) an inert carrier.Compounds of formula I are useful as agents for the treatment of hyperproliferative skin diseases, such as psoriasis, neoplastic diseases, such as leukemia, and sebaceous gland diseases, such as acne and sebhorreic dermatitis.Type: GrantFiled: March 6, 1997Date of Patent: November 24, 1998Assignee: Hoffmann-La Roche Inc.Inventors: Bernard Michael Hennessy, Jerome Anthony Iacobelli, Milan Radoje Uskokovic
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Patent number: 5811028Abstract: A 2H-5,6-optically active dihydropyran derivative represented by the general formula (I) or (I'): ##STR1## wherein Rf represents a fluoroalkyl group having 1 or 2 carbon atoms; a liquid crystal composition and a liquid crystal device comprising the derivative; and a racemic mixture comprising at least one type of the derivative. The derivative is a novel compound which exhibits the liquid crystal property by itself or can be used as an excellent dopant providing a high speed response to a composition comprising it even when the compound does not exhibit the liquid crystal property by itself. The derivative also exhibits a large spontaneous polarization.Type: GrantFiled: August 13, 1997Date of Patent: September 22, 1998Assignee: Kashima Oil CompanyInventors: Tatsushi Ishizuka, Mitsunori Takeda, Masaaki Namekawa, Keizou Itoh
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Patent number: 5801253Abstract: Compounds of formula (I) wherein R.sup.1 -R.sup.7, R.sup.10, X and the dotted bond have the meaning given in the specification, bind selectively to retinoid RXR receptors and are useful as antiproliferative agents for dermatological and oncological indications.Type: GrantFiled: January 21, 1997Date of Patent: September 1, 1998Assignee: Hoffmann-La Roche Inc.Inventors: Michael Klaus, Allen John Lovey, Peter Mohr, Michael Rosenberger
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Patent number: 5767217Abstract: Provided is a process for the preparation of polyorganosiloxanes containing unsaturated functions. A polyorganohydrogenosiloxane (A) containing at least 0.1 mol % of hydrogen atoms linked directly to the silicon is reacted with at least a stoichiometric amount of a hydrocarbon compound (B) having at least one ethylenic or acetylenic unsaturation, in the presence of a catalytically effective amount of a dehydrogenative condensation catalyst comprising a metal complex of formula (I): L.sub.n MR.sub.x Y.sub.y. M represents a metal chosen from titanium, zirconium and hafnium; the symbols L are the same or different and represent a hydrocarbon ligand of the metal M, the said ligand donating from 3 to 8 .pi.-electrons to the valence shell of the said metal; n is an integer ranging from 0 to 3; the symbols R are the same or different and represent a hydrocarbon or organosilicon ligand of the metal M, the ligand being a .sigma.Type: GrantFiled: May 30, 1996Date of Patent: June 16, 1998Assignee: Rhone-Poulenc ChimieInventors: Robert Choukroun, Jean-Marc Frances, Frederique Soleil
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Patent number: 5756485Abstract: The invention relates to novel compounds of the organosiloxane and organosilane type, bearing at least one function derived from salicylic acid. These novel products have, in particular, desquamating and/or anti-aging properties and may be used in topical application.Type: GrantFiled: March 21, 1997Date of Patent: May 26, 1998Assignee: L'OrealInventors: Herve Richard, Madeleine LeDuc, Alain LaGrange
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Patent number: 5710301Abstract: The present invention provides an oganosilicon compound possessing a .beta.-branched alkyl group or a .beta.-branched aralkyl group represented by Formula (I): ##STR1## wherein R.sup.1 represents methyl group or ethyl group; R.sup.2 represents C1-C18 alkyl group or aryl group. The present invention relates to optically active organosilicon compounds for use as a new type of enantio-recognitive material, and organosilicons which can be anticipated for use as a high polymer standard material in one-dimensional semiconductor quantum wire structures.Type: GrantFiled: February 18, 1994Date of Patent: January 20, 1998Inventor: Michiya Fujiki
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Patent number: 5702777Abstract: An alignment film for liquid crystals comprising a quasi-monomolecular layer of compounds of the formula IIC.sub.y --S.sub.p --A.sub.n (II)in whichC .sub.y is a mediocyclic or macrocyclic carbon ring having 8 or more ring members, it also being possible for this ring to contain fused benzene rings and --O--, --N--, --S--, --Si-- and --B-- as heteroatoms;S.sub.p is an alkyl group having from 1 to 20 carbon atoms, in which one or more non-adjacent --CH.sub.2 --groups may be replaced by --O--, --S--, --CO--, --O--CO--, --NH--CO--, --O--COO--, --NH--CO--NH--, --NH--CO--O--, --SO.sub.2 --, --Si(CH.sub.3).sub.2 --, --CH.dbd.CH-- or --C.tbd.C--;A.sub.n is SiX.sup.1 X.sup.2 X.sup.3, where X.sup.1 is a single bond, and X.sup.2 and X.sup.3, independently of one another, are a single bond or an alkyl or alkoxy group,where the compound of the formula (II) is bonded to an oxidic layer via the single bond(s) of the group A.sub.n.Type: GrantFiled: May 20, 1996Date of Patent: December 30, 1997Inventors: Norbert Rosch, Peter Wegener
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Patent number: 5693261Abstract: Pentafluorophenylmagnesium halides are prepared by a Grignard exchange reaction of hydrocarbylmagnesium halide with pentafluorochlorobenzene. The pentafluorophenylmagnesium halides are converted to pentafluorophenyl metal or metalloid derivatives by reacting them with metal or metalloid halides such as BF.sub.3.Type: GrantFiled: August 9, 1995Date of Patent: December 2, 1997Assignee: Albemarle CorporationInventors: Niomi L. Krzystowczyk, Steven P. Diefenbach, Wendy L. Lemoine
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Patent number: 5679818Abstract: The present invention is a compound having the formula:R.sup.1 --Ac.sup.1 --Ar.sup.1 --M--Ar.sup.2 --Ac.sup.2 --R.sup.2where R.sup.1 and R.sup.2 are independently selected from the group consing of hydrogen, unsubstituted alkyl groups, substituted alkyl groups, unsubstituted aryl groups, and substituted aryl groups, where Ac.sup.1 and Ac.sup.2 are independently selected alkynyl groups having at least 1 carbon-carbon triple bond, where Ar.sup.1 and Ar.sup.2 are independently selected substituted or unsubstituted aromatic diradicals, and where M has the structure ##STR1## where m is a positive integer, wherein x, p, y, r, n, and z are independently selected integers, where z.noteq.0 when n.noteq.0, and where R.sup.3 through R.sup.14 are independently selected from the group consisting of hydrogen, unsubstituted alkyl groups, substituted alkyl groups, unsubstituted aryl groups, and substituted aryl groups.Type: GrantFiled: July 26, 1996Date of Patent: October 21, 1997Assignee: The United States of America as represented by the Secretary of the NavyInventors: Daniel Bucca, Teddy M. Keller
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Patent number: 5675014Abstract: The present invention relates to a process for the preparation of organo silicon disulfide compounds. The process involves reacting a mercaptoalkoxysilane with a dithiobis(benzothiazole) compound.Type: GrantFiled: January 22, 1996Date of Patent: October 7, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Martin Paul Cohen, Dane Kenton Parker, Lawson Gibson Wideman
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Patent number: 5663358Abstract: The present invention relates to a process for the preparation of organo silicon disulfide compounds. The process involves reacting a mercaptoalkoxysilane with a sulfenamide compound.Type: GrantFiled: January 22, 1996Date of Patent: September 2, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Martin Paul Cohen, Lawson Gibson Wideman
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Patent number: 5616752Abstract: A method is provided for forming a supported cyclopentadiene-type compound comprising contacting a cyclopentadiene-type compound containing an active halogen with an inorganic support having surface hydroxyl group. Also there is provided a method of preparing a supported metallocene comprising reacting the supported cyclopentadiene-type compound with a transition metal compound under suitable conditions. There is also provided a process for producing bridged cyclopentadiene-type ligands having a bridge having branch that has a terminal vinyl group. Also metallocenes of these ligands are provided. Still further there is provided a process for producing bridged cyclopentadiene-type ligands having a bridge having a branch that has a terminal active halogen. The resulting new ligands and supported metallocenes produced therefrom are also provided.Type: GrantFiled: June 5, 1995Date of Patent: April 1, 1997Assignee: Phillips Petroleum CompanyInventors: Konstantinos Patsidis, Bernd Peifer, Helmut G. Alt, Rolf L. Geerts, Darryl R. Fahey, M. Bruce Welch, Syriac J. Palackal, Harold R. Deck
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Patent number: 5616718Abstract: A compound having the formula: ##STR1## wherein W, X, Y, and Z are as defined in the specification is useful for making 2,4-diaminoquinazolines.Type: GrantFiled: April 20, 1995Date of Patent: April 1, 1997Assignee: FMC CorporationInventors: Robert N. Henrie, II, Clinton J. Peake, Thomas G. Cullen, Walter H. Yeager, John W. Buser, James J. Fiordeliso, John A. Dixson
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Patent number: 5595684Abstract: An optically active tetrahydropyran derivative represented by one of the following general formulae, a liquid crystal composition containing the derivative, and a liquid crystal device containing the composition are disclosed. The optically active tetrahydropyran derivative is a novel compound which is chemically stable, causes no coloring, has excellent optical stability, and shows a large spontaneous polarization and a quick response. The optically active tetrahydropyran derivative can show a more excellent quick response when it is used in a composition, and is useful as a component in a ferroelectric liquid crystal which induces a large spontaneous polarization.Type: GrantFiled: April 3, 1995Date of Patent: January 21, 1997Assignee: Kashima Oil CompanyInventors: Masaaki Namekawa, Keizou Itoh, Shinichi Nayuki, Mitsunori Takeda, Yoshinobu Murayama
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Patent number: 5550260Abstract: A process for the production of a cyclopentenol compound represented by the formula I: ##STR1## wherein R.sub.1 represents a 2-propenyl group or a 2-propynyl group from a cyclopentenolone compound represented by the formula II: ##STR2## by protecting the hydroxyl group of the compound II, reacting the protected compound II with a reagent system obtained from TiCl.sub.4, Zn and CH.sub.2 Br.sub.2 or CH.sub.2 I.sub.2 and removing the protecting group from the resulting reaction product.Type: GrantFiled: June 2, 1994Date of Patent: August 27, 1996Assignee: Sumitomo Chemical Company, LimitedInventors: Kazunori Tsushima, Tomonori Iwasaki, Masaya Suzuki, Noritada Matsuo
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Patent number: 5530153Abstract: Process for the preparation of aryldimethyl(3-arylpropyl)silanes by a route comprising hydrosilylation followed by a modified Grignard reaction.Type: GrantFiled: January 27, 1995Date of Patent: June 25, 1996Assignee: Hoechst AktiengesellschaftInventor: Hans H. Schubert
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Patent number: 5527938Abstract: The present invention relates to (2-arylpropyl)silanes represented by the formula (III) and a process for the preparation of the formula (III) by the Friedel-Crafts alkylation of various substituted aromatic compounds represented by the formula (I) with allylchlorosilanes as represented by the formula (II) in the presence of Lewis acid catalysts such as aluminum chloride. ##STR1## In the formulas (I) and (III), R and R' represent independently hydrogen, alkyl (C.sub.1 -C.sub.4), phenoxy, fluoro, chloro, bromo, mercapto, mercaptomethyl and Ar represents phenyl ring, naphthalene ring, or biphenyl ring. X.sup.1, X.sup.2, and X.sup.3 represent hydrogen or chloro group; and wherein formula (III) according to the present invention specifically excludes the compounds of the general formula (III) in which X.sup.1, X.sup.2 and X.sup.3 are all chloro group, and R is hydrogen and R' is hydrogen, chloro or bromo, and X.sup.1 is hydrogen and X.sup.2 and X.sup.3 are all chloro, and R and R' are all hydrogen.Type: GrantFiled: July 19, 1994Date of Patent: June 18, 1996Assignee: Korea Institute of Science and TechnologyInventors: Il N. Jung, Bok R. Yoo, Bong W. Lee, Seung H. Yeon
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Patent number: 5514827Abstract: This invention includes di- and tri(alkoxysilylalkyl)- or haloalkoxysilylalkylcyclic pentanes, which may have substituents thereon, including vinyl groups, and their use as waterproofing agents, as crosslinking agents in room temperature vulcanizing silicone caulks, in coating compositions and as surface treatments. The cyclic hydrocarbons are pentane (C.sub.s). The silane groups are attached to the ring through an alkyl group, which may have substituents thereon. Multiple silane groups may be attached to the ring. The silanes may have the standard substituents thereon, including alkoxy and halogens.The specific silanes contemplated herein have the following formula:R.sub.a X.sub.3-a Si(CR'.sub.2).sub.n !.sub.b cycloC.sub.5 R".sub.Type: GrantFiled: January 25, 1995Date of Patent: May 7, 1996Assignee: OSi Specialties, Inc.Inventor: Herbert E. Petty
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Patent number: 5491266Abstract: This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active product.Type: GrantFiled: June 20, 1994Date of Patent: February 13, 1996Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: James E. Babin, Gregory T. Whiteker
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Patent number: 5488180Abstract: This invention relates to complex hydrophobe compounds and to alkoxylation products, i.e., condensation reaction products of alkylene oxides and complex hydrophobe compounds having at least one active hydrogen. This invention also relates to alkoxylation products that have beneficial, narrow molecular weight ranges.Type: GrantFiled: May 29, 1992Date of Patent: January 30, 1996Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Richard D. Jenkins, David R. Bassett, Danny E. Smith, John N. Argyropoulos, James E. Loftus, Gregory D. Shay
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Patent number: 5449728Abstract: An optically active acetylene polymer which is obtained by polymerizing an optically active form of 1-[dimethyl(10-pinanyl)silyl]-1-propyne which is represented by the following formula (I) and has a weight-average molecular weight of from 10,000 to 1,000,000, a membrane comprising this optically active acetylene polymer as the main component and a method for optically resolving a mixture of optical isomers by using this membrane: ##STR1##Type: GrantFiled: December 27, 1994Date of Patent: September 12, 1995Assignee: Daicel Chemical Industries, Ltd.Inventors: Eizo Oikawa, Toshiki Aoki, Kenichi Shinohara, Masayuki Kokai
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Patent number: 5436361Abstract: A process for synthesizing enediynes is provided. Specifically, the formed enediynes contain a hex-3-ene-1,5-diynyl group. Production of the enediynes involves adding a base to a propargylic halide in the presence of a chelating agent, which causes a carbenoid coupling-elimination sequence of the propargylic halides. A carbenoid destabilizing agent can also be added to the reaction mixture in order to enhance yield. Acyclic and cyclic enediynes can be synthesized according to this process. The enediynes are useful compounds that can be used in a variety of applications including use in the production of anti-tumor agents.Type: GrantFiled: April 22, 1994Date of Patent: July 25, 1995Assignee: Clemson UniversityInventors: Graham B. Jones, Robert S. Huber
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Patent number: 5436359Abstract: There are disclosed novel hydroquinone derivatives of the formulas: ##STR1## The derivatives of the formula (I) have various pharmacological activities such as antioxidation in living bodies and are useful as medicaments, and the derivatives of the formula (II) are intermediates for the production thereof.Type: GrantFiled: March 12, 1993Date of Patent: July 25, 1995Assignee: Takeda Chemical Industries, Ltd.Inventors: Hirotomo Masuya, Masayoshi Yamaoka
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Patent number: 5420323Abstract: The present invention relates to allylakylsilanes represented by the general formula (III) and their preparation methods by reacting allylsilanes represented by the formula I with olefin compounds represented by the formula II in the presence of hydrosilation catalysts such as chloroplatinic acid, platinum on silica, tributyl amine and Pd, Rh, Ni metals. ##STR1## wherein X represents independently chloro or alkoxy (C.sub.1-C.sub.4) and R is selected from the group consisting of Ph, CH.sub.2 Cl, C.sub.n H.sub.2n CH.sub.3 (n=0-15), Si(Me).sub.m Cl.sub.3-m (m=0-3), CF.sub.3, CH.sub.2 CF.sub.3, CN, CH.sub.2 CN, ##STR2## CH.sub.2 Si(Me).sub.m CL.sub.3-m (m=0-3), Si(Me).sub.m (OR.sup.1).sub.3-m (m=0-3), CH.sub.2 Si(Me).sub.m (OR.sup.1).sub.3-m (m=0-3), (wherein Me is methyl and R.sup.1 is methoxy or ethoxy group), Ph-CH.sub.2 Cl, and cyclohexenyl group.Type: GrantFiled: September 8, 1994Date of Patent: May 30, 1995Assignee: Korea Institute of Science and TechnologyInventors: Il N. Jung, Bok R. Yoo, Bong W. Lee, Mi-Yeon Suk
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Patent number: 5393911Abstract: New fluorenyl silane compounds and method for their production are disclosed. The fluorenyl compounds have the formula ##STR1## wherein Z is a substituted or unsubstituted fluorenyl radical and Z' is a substituted or unsubstituted cyclopentadienyl-type radical or a halogen.Type: GrantFiled: November 30, 1992Date of Patent: February 28, 1995Assignee: Phillips Petroleum CompanyInventors: Konstantinos Patsidis, Syriac J. Palackal, Helmut G. Alt
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Patent number: 5386048Abstract: The invention provides silicon substituted fullerene compounds. The compounds can form polymers or wrapped fullerenes. The compounds may be made by reacting an organo-silicon compound with a fullerene in the presence of a catalyst by a hydrosilylation reaction.Type: GrantFiled: November 24, 1993Date of Patent: January 31, 1995Assignee: Wisconsin Alumni Research FoundationInventors: Robert C. West, Kunio Oka
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Patent number: 5376715Abstract: The invention relates to silicon compounds, to mixtures thereof in aromatic polycarbonates and aromatic polyester carbonates and to their use as heat stabilizers in aromatic polycarbonates and aromatic polyester carbonates.Type: GrantFiled: January 18, 1994Date of Patent: December 27, 1994Assignees: Bayer Aktiengesellschaft, Miles Inc.Inventors: Gerhard Fennhoff, Jurgen Kirsch, Karsten-Josef Idel, Klaus Kircher, Charles Lundy
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Patent number: 5360938Abstract: This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active product.Type: GrantFiled: July 16, 1992Date of Patent: November 1, 1994Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: James E. Babin, Gregory T. Whiteker
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Patent number: 5317072Abstract: The present invention is a process for the preparation of organofunctional-terminated polydiorganosiloxane polymers and organofunctional polydiorganosiloxane copolymers. The process comprises reacting a hydroxyl-terminated polydiorganosiloxane polymer with: (1) an organofunctional chlorosilane end-blocker to form an organofunctional terminated polydiorganosiloxane polymer and (2) a mixture of organochlorosilane end-blocker and organofunctional dichlorosilane to form an organofunctional polydiorganosiloxane copolymer. The process can be conducted in the presence of an aqueous solution of hydrogen chloride, where the water is present in stoichiometric excess in relation to the hydrolyzable silicon-bonded chlorine.The present process is particularly useful for producing 5-hexenyl-terminated polydimethylsiloxane polymers and for producing siloxane copolymers comprising poly-5-hexenylmethylsiloxy and polydimethylsiloxy blocks.Type: GrantFiled: July 31, 1992Date of Patent: May 31, 1994Assignee: Dow Corning CorporationInventors: Gary N. Bokerman, David E. Puckett, Larry H. Wood
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Patent number: 5296624Abstract: The invention relates to compositions containing compounds of the structure (I):(R.sub.1).sub.a (R.sub.2).sub.b SiX.sub.c (I)wherein R.sub.1 is a neophyl, neohexyl or (CH.sub.3).sub.3 SiCH.sub.2 --group; R.sub.2 is a methyl group; X is a halo group or a saturated, unsaturated, branched, unbranched or cyclic alkoxy group of 1-18 carbon atoms; a is 1 or 2, b is an integer from 0 to 2, and c is an integer from 1 to 3.Type: GrantFiled: November 25, 1992Date of Patent: March 22, 1994Assignee: Huls America, Inc.Inventors: Gerald L. Larson, Barry Arkles
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Patent number: 5286862Abstract: The present invention relates to a process for the preparation of compounds of the formula I ##STR1## where X is CH.dbd.CH, N.dbd.CH, CH.dbd.N or S,R.sup.1 and R.sup.2 independently of one another are H, halogen, alkyl, alkoxy, alkylthio, haloalkyl, haloalkoxy, haloalkylthio or the bivalent methylenedioxy group,R.sup.3 is a radical of the formulae (A), (B) or (C) ##STR2## where R.sup.4 and R.sup.5 independently of one another are H, halogen, alkyl, alkoxy or a radical of the formula (D) ##STR3## in which R.sup.6 is H or halogen andY is CH.sub.2, O or S, andm, n, o, p and q are 0, 1, or 2, which comprises reacting a compound of the formula IIH.sub.2 C.dbd.CH--CH.sub.2 --R.sup.3 (II)where R.sup.3 is as defined in formula I, with dichloromethylsilane in the presence of a catalyst suitable for hydrosilylation reactions, and reacting the resulting intermediate of the formula III ##STR4## where R.sup.Type: GrantFiled: August 24, 1989Date of Patent: February 15, 1994Assignee: Hoechst AktiengesellschaftInventor: Hans H. Schubert
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Patent number: 5277838Abstract: The invention relates to compounds of the formula ##STR1## in which R.sup.3 is a hydrogen atom or a radical of the formulaR.sup.1 --R.sup.5 --O--(CH.sub.2).sub.y --,in which R.sup.1 is a halogen atom, a hydroxyl group, a C.sub.1 - to C.sub.18 -alkoxy group, a C.sub.1 - to C.sub.18 -alkyl group or a cholesteryl radical, R.sup.5 is a phenylene or biphenylene radical which may be linked to a phenylene radical via the --OOC-- group or a phenylene radical linked the --OOC-- group, y is an integer of from 3 to 12, R.sup.2 is selected from the group consisting of a radical of the formulaR.sup.6 --R.sup.1 and R.sup.7 --SiCH.sub.3).sub.2 H,where R.sup.6 is a single chemical bond or a phenylene, biphenylene or cyclohexylene racial or a phenylene radical linked to the --OOC-- or --COO-- radical or a phenylene radical linked to a cyclohexyl radical through the --OOC-- group, R.sup.Type: GrantFiled: December 4, 1991Date of Patent: January 11, 1994Assignee: Consortium fur elektrochemische Industrie GmbHInventors: Wolfgang Haas, Norman Haberle, Rainer Winkler, Franz-Heinrich Kreuzer
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Patent number: 5266670Abstract: A process comprising the steps of:1) reacting a norbornene compound of the formula: ##STR1## where R is H or methyl, R.sup.1 is a direct bond or --C(.dbd.O)O-- and R.sup.2 is vinyl, ethynyl, allyl or propargyl, with a silicon hydride functional compound in the presence of hydrosilation catalyst at a temperature of at least 60 degrees; and2) recovering a product which consists essentially of the addition products of the silicon hydride functional compound to the R.sup.2 group of the norbornene compound and which is substantially free of addition products of the silicon hydride functional compound to the internal ring double bond of the norbornene compound.The products of this process can be used to produce norbornene functional prepolymers which are useful in cureable silicone formulations based on thiolene or hydrosilation cure chemistry.Type: GrantFiled: February 24, 1989Date of Patent: November 30, 1993Assignee: Loctite CorporationInventors: Steven T. Nakos, Anthony F. Jacobine, David M. Glaser
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Patent number: 5262556Abstract: The invention relates to a process for the reaction of fluorinated or chlorinated aromatics with electrophiles at the ortho position relative to the fluorine or chlorine atom, characterized in that a strong base is added to a mixture of the fluorinated or chlorinated aromatic and the electrophile.Type: GrantFiled: May 6, 1992Date of Patent: November 16, 1993Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Bernard Riefling, Jurgen Seubert, Volker Reiffenrath, Reinhard Hittich
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Patent number: 5260461Abstract: Osmium-catalyzed methods of addition to an olefin are discussed. In the method of asymmetric dihydroxylation of the present invention, an olefin, a chiral ligand, an organic solvent, an aqueous solution, a base, a ferricyanide salt and an osmium-containing compound are combined. The chiral ligand is an alkaloid or alkaloid derivative linked to an organic substituent of at least 300 daltons molecular weight through a planar aromatic spacer group. The organic substituent can be another alkaloid or alkaloid derivative. With the described chiral ligands, asymmetric dihydroxylation of olefins with high yields and enantiomeric excesses are achieved.Type: GrantFiled: October 10, 1991Date of Patent: November 9, 1993Assignee: Massachusetts Institute of TechnologyInventors: Jens Hartung, K. Barry Sharpless
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Patent number: 5220048Abstract: Benzocyclobutene-1,2-dichlorides, -bromides and -iodides which are substituted in the benzene ring are accessible in good yields and short reaction times by reacting substituted 1,2-(dichloromethyl or dibromomethyl)-benzenes with NaI in acetonitrile as the solvent. They can be used together with dienophils, for example 1,4-quinones, in Diels-Alder reactions.Type: GrantFiled: May 24, 1989Date of Patent: June 15, 1993Assignee: Ciba-Geigy CorporationInventors: Marcus Baumann, Walter Fischer, Vratislav Kvita, Carl W. Mayer
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Patent number: 5208357Abstract: There are provided enantiomerically enhanced chiral substituted cyclopentadienyl ligands and compounds thereof, and a process for their making comprising contacting a substituted fulvene or derivative thereof with an enantiomerically enhanced or pure nucleophile having at least one chiral center. There are further provided enantiomerically enhanced chiral organometallic complexes having one or more chiral substituted cyclopentadienyl groups.Type: GrantFiled: December 31, 1990Date of Patent: May 4, 1993Assignee: Exxon Chemical Patents, Inc.Inventor: Eric A. Mintz
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Patent number: 5204454Abstract: Prepolymer polyols containing mesogenic moieties useful as reactants for the preparation of resinous materials are disclosed. Synthesized by condensing a polyether polyol with bifunctional mesogenic diacids, or diesters, the compounds of the invention are characterized by their reasonably low melt temperature which renders them suitable as additive materials in polymeric molding compositions and as precursors for the preparation of resinous materials.The liquid crystalline properties of the prepolymers of the invention were found to depend on the type and molecular weight of the glycols and on the molar ratio between the glycols and the mesogenic reactant.Type: GrantFiled: July 19, 1991Date of Patent: April 20, 1993Assignee: Miles Inc.Inventors: Randall A. Rodenhouse, Dittmar K. Nerger, Douglas A. Wicks
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Patent number: 5194619Abstract: The compounds of the formula I or Ia ##STR1## in which R.sup.1 is alkyl, aryl, alkoxy, alkenyl, arylalkyl, alkylaryl, aryloxy, fluoroalkyl, halogenoaryl, alkynyl, trialkylsilyl or a heteroaromatic radical,R.sup.2, R.sup.3 and R.sup.4, in addition to hydrogen, have the meanings given under R.sup.1 andR.sup.5 is hydrogen, alkyl, fluoroalkyl or alkenyl, can be obtained in a one-stage process by reaction of a compound II ##STR2## with (substituted) cyclopentadiene in the presence of a base. The compounds I and Ia are suitable as ligands for metallocene complexes which are used as catalysts in olefin polymerization.Type: GrantFiled: February 14, 1992Date of Patent: March 16, 1993Assignee: Hoechst AktiengesellschaftInventors: Dieter Reuschling, Jurgen Rohrmann, Gerhard Erker, Reiner Nolte, Michael Aulbach, Astrid Weiss
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Patent number: 5136074Abstract: The present invention is a silylating agent of formula(CH.sub.3)(R)(R.sup.1)SiX;where R is an isopropyl group, R.sup.1 is a monovalent hydrocarbon group having 2 to 6 carbon atoms, and X is a chlorine atom or bromine atom. The silylating agent of the present invention provide silylation product which is much more stable than the silylation product obtained with trimethylchlorosilane, and its protective group is as stable as the silylation product obtained from t-butyldimethylchlorosilane. Moreover, the present described silylating agents are characterized by an easier desilylation than the t-butyldimethylsilyl group.Type: GrantFiled: May 15, 1990Date of Patent: August 4, 1992Assignee: Dow Corning Toray Silicone Company, Ltd.Inventor: Akihiko Shirahata
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Patent number: 5126473Abstract: A process is described for the hydrided of halogen-substituted compounds of the second to fourth period of Groups III to V of the periodic system, with the exception of gallium, aluminum, carbon, or nitrogen. A finely-granulated aluminum is added to a molten salt melt that consists of 50-67 molar % AlCl.sub.3 (anhydrous) and 50 to 33 molar % of sodium chloride. Then to the stirred, or by some other means dispersed suspension, hydrogen is introduced to hydrided the finely-dispersed aluminum. Thereafter the mixture is reacted with the halogen-substituted compound and the resulting hydrided compound is renewed.Type: GrantFiled: August 10, 1990Date of Patent: June 30, 1992Assignee: Degussa AktiengesellschaftInventors: Hans-Juergen Klockner, Ralf Schmoll, Peter Panster, Peter Kleinschmit
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Patent number: 5093512Abstract: This invention concerns a process for preparing fluoroalkyl substituted olefins, fluorinated ketones and fluorinated aromatic compounds by the catalyzed reaction of fluoroalkylsilanes with selected fluorinated olefins, acyl fluorides and fluorinated aromatic compounds, respectively.Type: GrantFiled: October 20, 1989Date of Patent: March 3, 1992Assignee: E. I. Du Pont de Nemours & Co.Inventor: William B. Farnham
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Patent number: 5081202Abstract: High purity phenyl silicone ladder polymer, and a method for producing such polymer, suitable for use as the protective film, the interlayer insulating film, etc. in the fabrication of semiconductor elements, which polymer contains therein 1 ppm or below of each of sodium, potassium, iron, copper, lead and chlorine, and 1 ppb or below of each of uranium and thorium, and which is represented by the following general formula (I): ##STR1## (where: R.sub.1 to R.sub.4 denote respectively hydrogen or a lower alkyl group; n is an integer of from 8 to 1,000); or the following general formula (II): ##STR2## (where: n is an integer of from 8 to 1,600).Type: GrantFiled: November 17, 1989Date of Patent: January 14, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hiroshi Adachi, Etsushi Adachi, Osamu Hayashi, Kazuo Okahashi