Carbon Attached Directly Or Indirectly To The Silicon By Nonionic Bonding (e.g., Silanes, Etc.) Patents (Class 556/465)
  • Publication number: 20030087127
    Abstract: Provided are compounds having molecular components capable of transporting/injecting hole and an organic EL device having a self-assembled monolayer comprising the same.
    Type: Application
    Filed: July 22, 2002
    Publication date: May 8, 2003
    Inventors: Jeong Ik Lee, Hye Yong Chu, Hyoyoung Lee, Ji Young Oh, Seong Hyun Kim, Lee-Mi Do, Taehyoung Zyung, Jaemin Lee, Byung-Jun Jung, Hong-Ku Shim
  • Patent number: 6558819
    Abstract: A compound containing at least one repeating unit represented by the following formula (1) and at least one repeating unit represented by the following formula (2), a light emitting device material comprising the compound, and a light emitting device containing the light emitting device material: wherein R1 and R2 represent each a substituent; Ar1 and Ar2 represent each an arylene linking group or a heteroarylene linking group; R3 and R4 represent each a hydrogen atom or a substituent; R5 and R6 represent each a substituent; and m and n are each an integer of from 0 to 3.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: May 6, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tatsuya Igarashi
  • Patent number: 6538149
    Abstract: Compounds of the formula where the symbols have the meaning defined in the specification, have retinoid, retinoid antagonist and/or retinoid inverse-agonist-like biological activity.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: March 25, 2003
    Assignee: Allergan
    Inventors: Vidyasagar Vuligonda, Alan T. Johnson, Roshantha A. Chandraratna
  • Patent number: 6524715
    Abstract: A thin film forming chemical absorption material including at least a functional group of the formula CF3—CF2—CH2—O—(benzene)—CH=CH—C(O)—(benzene)— and a —SiX group (X represents halogen) as an end group bonded by siloxane bond. The chemical absorption material can form a monomolecular thin-film having photosensitive groups that are transparent and stable in a visible light region and cause photochemical reaction in an ultraviolet region. A liquid crystal alignment film includes an aggregation of adsorption molecules chemically absorbed directly on a surface with electrodes or chemically adsorbed indirectly thereon through another material layer having a characteristic group the formula above and a —O—Si bond group at a molecular end group.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: February 25, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tadashi Ootake, Kazufumi Ogawa, Takaiki Nomura, Takako Takebe
  • Patent number: 6518447
    Abstract: Chlorosilane compounds having a thexyl group which is a bulky substituent group are novel. The compounds are useful silylating agents because stable silylated products are obtained due to the bulky substituent group.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: February 11, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoichi Tonomura, Tohru Kubota, Yasufumi Kubota
  • Publication number: 20020172766
    Abstract: A CVD process for producing low-dielectric constant, SiOC thin films using organosilicon precursor compositions having at least one alkyl group and at least one cleavable organic functional group that when activated rearranges and cleaves as a highly volatile liquid or gaseous by-product. In a first step, a dense SiOC thin film is CVD deposited from the organosilicon precursor having at least one alkyl group and at least one cleavable organic functional group, having retained therein at least a portion of the alkyl and cleavable organic functional groups. In a second step, the dense SiOC thin film is post annealed to effectively remove the volatile liquid or gaseous by-products, resulting in a porous low-dielectric constant SiOC thin film. The porous, low dielectric constant, SiOC thin films are useful as insulating layers in microelectronic device structures. Preferred porous, low-dielectric SiOC thin films are produced using di(formato)dimethylsilane as the organosilicon precursor.
    Type: Application
    Filed: March 17, 2001
    Publication date: November 21, 2002
    Inventors: Ravi K. Laxman, Chongying Xu, Thomas H. Baum
  • Publication number: 20020173670
    Abstract: The invention includes a trialkylsilane comprising a hydrocarbon backbone including one to ten carbon atoms; a terminal trialkylsilyl moiety having at least two alkyl groups independently comprising at least six carbon atoms; and a terminal silyl moiety that has at least one hydrolyzable group bound to a silicon of the silyl moiety. At least one of the alkyl groups of the trialkylsilyl moiety may substituted with at least one halogen, and is preferably a perfluoroalkyl group. The invention also provides methods of producing the trialysilane and substrates including the trialkysilane of the invention, as well as columns and substrates for use in chromatographic applications.
    Type: Application
    Filed: May 3, 2002
    Publication date: November 21, 2002
    Applicant: Gelset, Inc.
    Inventors: Barry C. Arkles, Gerald L. Larson, Youlin Pan
  • Patent number: 6454969
    Abstract: Disclosed is a silicon-containing flame retardant for an organic polymer, comprising a monomer, a polymer or a mixture thereof, which is represented by the following formula (1): wherein each of R1 and R2 independently represents a monovalent C1-C20 hydrocarbon group; each of R3 and R4 independently represents a monovalent or divalent C1-C20 hydrocarbon group, with the proviso that, when each of R3 and R4 independently represents a divalent C1-C20 hydrocarbon group, R3 and R4 are bonded to each other to form a ring; and n is 1 or more in terms of the number average n-value.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: September 24, 2002
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Hajime Nishihara
  • Patent number: 6437167
    Abstract: The present invention describes new chiral stationary phases and optically active compounds therein contained. The optically active compounds contained in the stationary phases are represented by the formula of structure (I), containing at least one asymmetric carbon atom, and a substituent acting as a spacer. The stationary phases of the present invention are useful in the preparation of chromatographic columns useful for the separation of enantiomers.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: August 20, 2002
    Assignee: Societa' Cooperative Centro Ricerche Polytech A Responsabilitia' Limitata
    Inventors: Vitomir Sunjic, Darko Kontrec, Vladimir Vinkovic
  • Patent number: 6428898
    Abstract: The present invention is directed to low VOC curable coating compositions suitable for use in various mar and etch resistant coatings, such as in automotive coatings. The binder of the composition includes silicon/hydroxyl and cross-linking components. The silicon/hydroxyl component includes one or more reactive oligomers having linear or branched cycloaliphatic moiety and at least two functional groups with at least one being a silane or silicate group, the remaining being a hydroxyl group. Applicants have unexpectedly discovered that by including silane or silicate functionalities in these reactive oligomers, the solids level of the composition can be significantly increased at reduced composition viscosities. As a result, such high solids low VOC compositions can be readily applied by conventional application means, such as by spraying.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: August 6, 2002
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Robert J. Barsotti, Isidor Hazan, John David Nordstrom
  • Publication number: 20020102433
    Abstract: A compound of the following formula is described.
    Type: Application
    Filed: November 28, 2001
    Publication date: August 1, 2002
    Inventors: Rong-Ho Lee, Chin-Ti Chen, Hsiu-Chih Yeh, Li-Hsin Chan
  • Patent number: 6413646
    Abstract: The present invention is directed to acyl and carbonate blocked phenolic silanes of the general structural formula is: (RIC(═O)O)yC6RII6−y−z[CxH2xSi(ORIII)3−a(RIV)a]z where RI is H, CH3 or RVO; RII is H or RVO; RIII is alkyl, phenyl or acyl from 1 to 6 carbon atoms; RIV is hydrogen, alkyl or phenyl from 1 to 6 carbon atoms; RV is a linear or branched alkyl group from 1 to 4 carbon atoms; y is an integer from 1 to 3; z is an integer from 1 to 3; x is an integer from 2 to 6 and a is an integer from 0 to 2.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: July 2, 2002
    Assignee: Crompton Corporation
    Inventors: Eric R. Pohl, Scot M Turner
  • Patent number: 6410748
    Abstract: A monomer represented by the following general formula (m-1): wherein R is a group having an alicyclic skeleton, R2s may be the same or different and are individually hydrogen atom, halogen atom or monovalent organic group, X1 is a bivalent organic group containing a heteroatom, j is an integer of 0 to 3, and R1 is a group selected from the following groups, a monovalent organic group having Si (R1-1), and —(X2)k—R4—(X3)m—C(R6)3  (R1-2), wherein X2 and X3 are a bivalent organic group containing a heteroatom, k and m are an integer of 0 to 3, R4 is a bivalent alkyl group, R6s may be the same or different and are individually hydrogen atom, halogen atom or monovalent organic group.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: June 25, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naomi Shida, Toru Ushirogouchi, Koji Asakawa, Takeshi Okino, Shuji Hayase, Yoshihiko Nakano, Makoto Nakase
  • Patent number: 6395826
    Abstract: The present invention relates to mixtures prepared from (A) at least one linear, branched, or cyclic monomeric organosilane having at least two silicon atoms with hydrolyzable and/or condensation-crosslinking groups in which the silicon atoms are bonded to one another through at least one carbon atom in a linking unit, and (B) at least one boron- and/or aluminum-containing compound having the formula (I) RxM(OR′)3−x  (I)  wherein M is Al or B, x is 0, 1, or 2, R is C1-C6-alkyl, C6-C12-aryl, or (O)½, with the proviso that if R is (O)½, then the compound of the formula (I) is a chain when x is 1 and a cyclic or cage-form compound when x is 2, and each R′ is independently H, C1-C10-alkyl, or C6-C12-aryl. The invention further relates to hybrid materials prepared from such mixtures and to coatings produced therefrom.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: May 28, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Mager, Steffen Hofacker
  • Publication number: 20020058765
    Abstract: The present invention relates to a metal-free cyclopentadienide compound which, in conjunction with a metallocene, is able to form a catalyst system that can be used for the polymerization of olefins. It is thus possible to dispense with the use of methylaluminoxane (MAO) or boron-containing compounds as co-catalyst and nevertheless achieve a high degree of catalytic activity. The invention relates also to a process for the preparation of the metal-free cyclopentadienide compound and to the use thereof as a catalyst component in the preparation of polyolefins.
    Type: Application
    Filed: August 3, 2001
    Publication date: May 16, 2002
    Inventors: Sigurd Becke, Uwe Denninger, Steffen Kahlert, Werner Obrecht, Claudia Schmid, Heike Windisch
  • Patent number: 6388118
    Abstract: A process is disclosed for preparing bis-cyclopentadienyl compounds bridged by a single carbon atom by reacting a carbonyl compound with a cyclopentadienyl compound in the presence of a base and of an oxygen-containing solvent having an atomic ratio carbon/oxygen not higher than 3. The compounds obtainable in high yields with this simple single-step process can be used to prepare ansa-metallocenes which are active as catalyst components in the polymerization of olefins.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 14, 2002
    Assignee: Basell Technology Company bv
    Inventors: Ilya E. Nifant'ev, Pavel V. Ivchenko
  • Publication number: 20020055647
    Abstract: Chlorosilane compounds having a thexyl group which is a bulky substituent group are novel. The compounds are useful silylating agents because stable silylated products are obtained due to the bulky substituent group.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 9, 2002
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoichi Tonomura, Tohru Kubota, Yasufumi Kubota
  • Patent number: 6365764
    Abstract: Metallocene compounds having two fluorenyl ligands bridged with a single silicon or germanium atom, said atom having two substituent groups containing a total of at least four carbon atoms, are useful as catalyst components for the polymerization of olefins. Particularly, it is possible to prepare high molecular weight atactic polypropylene with improved yields with respect to the known catalysts.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: April 2, 2002
    Assignee: Basell Technology Company BV
    Inventors: Luigi Resconi, Robert L. Jones
  • Patent number: 6359159
    Abstract: Chemical vapor deposition processes utilize as precursors volatile metal complexes with ligands containing metalloid elements silicon, germanium, tin or lead.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: March 19, 2002
    Assignee: Research Foundation of State University of New York
    Inventors: John T. Welch, Paul J. Toscano, Rolf Claessen, Andrei Kornilov, Kulbinder Kumar Banger
  • Publication number: 20020008011
    Abstract: A method for preparing an organosilane functionalized in the 3 position includes reacting an allyl compound (H2C═CH—CH2X) with a silane (R2R3R4SiH) in a reaction column under a pressure between 1 bar and 25 bar, in the presence of a heterogeneous platinum catalyst. The silane reactant is present in the reaction column, and introduced into the reaction column, in a stoichiometric excess with respect to the allyl compound. The reaction column preferably includes a reaction zone, a first separation zone located above the reaction zone, and a second separation zone located below the reaction zone, wherein a first product exits the reaction zone and enters the first separation zone, and a second product exits the reaction zone and enters the second separation zone. Distillation occurs simultaneously with the reaction in the reaction chamber.
    Type: Application
    Filed: March 28, 2001
    Publication date: January 24, 2002
    Inventors: Raymund Sonnenschein, Christoph Batz-Sohn
  • Patent number: 6340768
    Abstract: Volatile metal complexes with &agr;-sila-&bgr;-diketonate ligands containing haloalkyl, and particularly, perfluoroalkyl, substitutents are useful as metal precursors for chemical vapor deposition processes and as nanostructured materials containing fluorous domains.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: January 22, 2002
    Assignee: Research Foundation of State University of New York
    Inventors: John T. Welch, Kulbinder Kumar Banger, Seiichiro Higashiya, Silvana C. Ngo
  • Patent number: 6337415
    Abstract: Tetrakis(trimethylsilyl)silane is prepared by reacting tetrachlorosilane with chlorotrimethylsilane in the presence of lithium metal, adding a compound with active proton(s) to the reaction mixture for treating the residual lithium metal therewith while maintaining the mixture neutral or acidic, and separating tetrakis(trimethylsilyl)silane from the organic layer. The residual lithium metal is treated in a safe and simple manner. Reaction of the tetrakis(trimethylsilyl)silane with an alkyl lithium or alkali metal alkoxide, followed by acid hydrolysis, affords tris(trimethylsilyl)silane. The desired compounds are prepared in high yields and on an industrial scale.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: January 8, 2002
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Ayumu Kiyomori, Tohru Kubota, Takeshi Kinsho, Koji Hasegawa, Takeru Watanabe
  • Patent number: 6329541
    Abstract: An (organo) ((omega-alkenyl) cyclopentacarbyl) (silane-bridged) metallocene compound is provided. Polymerization processes therewith are also provided.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: December 11, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Michael Jung, Helmut G. Alt, M. Bruce Welch
  • Patent number: 6326520
    Abstract: The invention relates to a method for producing a novel optically active compound represented by the general formula [IV]. This method includes the step of reacting a vinyl ether with a halogenated acetaldehyde in the presence of an optically active binaphthol-titanium complex. With this, the novel optically active compound can be produced very easily. Furthermore, the novel optically active compound can easily be oxidized to a novel optically active &agr;,&bgr;-dihydrexyketone represented by the general formula [V]. These novel optically active compounds can each be used as useful intermediates.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: December 4, 2001
    Assignee: Central Glass Company, Limited
    Inventors: Akihiro Ishii, Koichi Mikami
  • Publication number: 20010034464
    Abstract: A reductive system including a silane, preferably PMHS, and an active zinc compound, which is monomeric and not a hydride, wherein a reduction of a carbonyl substrate to a corresponding alcohol is achievable.
    Type: Application
    Filed: April 6, 2001
    Publication date: October 25, 2001
    Applicant: FIRMENICH SA
    Inventor: Hubert Mimoun
  • Patent number: 6291389
    Abstract: A cationic catalyst composition comprising a reactive cation and a compatible non-coordinating anion is preferably used at a temperature of 20° C. or less to produce olefin polymers, particularly polymers and copolymers of isobutylene.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: September 18, 2001
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Timothy Daniel Shaffer, Anthony Jay Dias, Ira David Finkelstein, Myron Bernard Kurtzman
  • Patent number: 6291699
    Abstract: 2-alkyl-4-(2,6-dialkylphenyl) indenes, methods for the synthesis thereof, methods for converting such indenes to bridged metallocene ligands, methods for converting such ligands to bridged metallocenes and olefin polymerization processes in which such metallocenes are used as a catalyst or as a component of a catalyst system are described.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: September 18, 2001
    Assignee: Boulder Scientific Company
    Inventors: John M. Birmingham, Sandra Russo-Rodriguez
  • Publication number: 20010016635
    Abstract: Aromatic silane compounds containing at least an aromatic ring bound directly to the silicon atom, wherein the aromatic ring has at least one substituent located in the ortho position selected from C1-10 hydrocarbon groups, are useful as electron donors in olefin polymerization catalysts for the production of polyolefins having a stereoblock content of from about 7 to about 25%.
    Type: Application
    Filed: December 21, 2000
    Publication date: August 23, 2001
    Inventors: Eric J. Evain, Constantine A. Stewart
  • Patent number: 6278011
    Abstract: Two new classes of polysilahydrocarbons: Rn—Si—[CH2CH2—Si—R13](4−n)  (III) C6H(12−m)[CH2CH2SiR13]m  (IV) where R and R1 are alkyl groups having from 1 to 18 carbon atoms, “n” is an integer between 0 and 3, and “m” is an integer between 2 and 6. Lubricant compositions containing the new polysilahydrocarbons are disclosed. Methods of making the new polysilahydrocarbons are also disclosed.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: August 21, 2001
    Assignee: The University of Dayton
    Inventors: Grace J. Chen, Carl Edgar Snyder, Jr., Kalathil Chandy Eapen
  • Patent number: 6278009
    Abstract: It is shown metallocenes with functionalized bridge of formula wherein M represents a transition metal of groups 3, 4, 5 or 6, L represents cyclopentadienyl-type ligands, Y represents a halogen and which can own one or various bridges between unities L. At least one of these bridges is functionalized through a group constituted by the union between a halogen atom and a silicon, germanium or tin atom. It is also shown a method for the synthesis of these metallocene compounds starting from the corresponding metallic halure and a precursor of the ligand which has leaving groups. These metallocene compounds are used as catalyst precursors for the homopolymerization and copolymerization of olefins. It is also shown methods for supporting these metallocenes on inorganic solids in order to obtain solid catalyst systems for olefins polymerization processes in a heterogeneous phase.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: August 21, 2001
    Assignee: Repsol Quimica S.A.
    Inventors: Luis Mendez Llatas, Antonio Muñoz-Escalona Lafuente, Jose Sancho Royo, Pilar Lafuente Cañas, Wilfried Michiels Vega, Begoña Peña Garcia
  • Publication number: 20010014752
    Abstract: A high-efficiency organic luminous element by which blue luminescence with high luminance and high color purity becomes possible, which comprises at least one compound represented by general formula (A): 1
    Type: Application
    Filed: February 20, 2001
    Publication date: August 16, 2001
    Inventor: Tatsuya Igarashi
  • Patent number: 6271408
    Abstract: This invention relates to trimethylsilyloxy-cyclopentane derivatives: 3-(1-Acetoxy-1-methylethyl)- 2-formyl-1-methyl-1-trimethylsilyloxy-cyclopentane; 4-[5-(1-Hydroxy-1-methylethyl)-2-methyl-2-trimethylsilyloxy-cyclopentyl]-3-buten-2-one; 5-[5-(1-Hydroxy-1-methylethyl)-2-methyl-2-trimethylsilyloxy-cyclopentyl]-3-methyl-penta-1,4-dien-3-ol and alkyl 5-[5-(1-Hydroxy-1-methylethyl)-2-methyl-2-trimethylsilyloxy-cyclopentyl]-3-methyl-penta-2,4-dienoates.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: August 7, 2001
    Assignee: Roche Vitamins Inc.
    Inventors: Hanspeter Pfander, Bruno Traber
  • Patent number: 6271167
    Abstract: Disclosed are a catalyst for polymerizing olefins containing a solid catalyst component containing titanium, magnesium and halogen as essential components (component (A)); an organic aluminum compound (component (B)); and a silane compound (component (C)) represented by general formula (1) wherein R1 and R2 independently represent a straight, branched or cyclic saturated aliphatic hydrocarbon group or a silyl group, a method of preparing polyolefins using the catalyst as well as novel trimethoxysilane compounds represented by the general formula (1) in which R1 is a straight saturated aliphatic hydrocarbon group having 2 to 10 carbon atoms, and R2 represents a methyl group. Use of the catalyst enables efficient production of polyolefins having a low molecular weight (MFR>20 (g/10 minutes)), a broad molecular weight distribution (MLMFR/MFR>22) and a high stereoregularity when applied to polymerization of olefins having 3 or more carbon atoms.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: August 7, 2001
    Assignee: Japan Polyolefins Co., Ltd.
    Inventors: Masaki Fushimi, Toshio Fujita, Shintaro Inazawa
  • Patent number: 6255516
    Abstract: Fluoroalkyl organosilicon compounds are prepared by reacting fluoroolefins with organosilicon compounds that contain at least one H-Si group, in the presence of a Pt(0) complex catalyst. Further, fluoroalkylalkoxy organosilicon compounds are prepared by esterifying fluoroalkyl organosilicon compounds. The process proceeds uniformly under mild conditions with high yields and selectivities.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: July 3, 2001
    Assignee: Huels Aktiengesellschaft
    Inventors: Peter Jenkner, Albert-Johannes Frings, Michael Horn, Jaroslaw Monkiewicz, Burkhard Standke
  • Patent number: 6235918
    Abstract: Novel heterogeneous catalysts for the which hydrogenation of olefins and arenes with high conversion rates under ambient conditions and the polymerization of olefins have been developed. The catalysts are synthesized from Ziegler-type precatalysts by supporting them on sulfate-modified zirconia.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: May 22, 2001
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Hongsang Ahn
  • Patent number: 6191292
    Abstract: The invention relates to precursors of the A-ring of vitamin D, of the formula (I): in which A, R, R1 and R2 are as defined in the specification. The invention also relates to a method of preparing compounds (I) comprising the enzymatic asymmetrization of 3,5-dihydroxybenzoic acid derivatives, as well as intermediates of preparation of said compounds.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: February 20, 2001
    Assignee: Laboratoire Theramex
    Inventors: Jean-Claude Pascal, Maurits Vandewalle, Philippe Maillos, Pierre De Clercq
  • Patent number: 6184403
    Abstract: Chemical vapor deposition processes utilize as precursors volatile metal complexes with ligands containing metalloid elements silicon, germanium, tin or lead.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: February 6, 2001
    Assignee: Research Foundation of State University of New York
    Inventors: John T. Welch, Paul J. Toscano, Rolf Claessen, Andrei Kornilov, Kulbinder Kumar Banger
  • Patent number: 6180704
    Abstract: A Heat-curable silicone rubber composition comprising (A) 100 weight parts organopolysiloxane with the average unit formula RXSiO(4−x)/2 each R is independently selected from the group consisting of hydroxyl and substituted and unsubstituted monovalent hydrocarbon groups and x has a value from 1.9 to 2.1 and containing at least 2 silicon-bonded alkenyl groups in each molecule, (B) 10 to 100 weight parts reinforcing filler, (C) 0.1 to 10 weight parts carboxiloxane dendrimer that contains at least 3 silicon-bonded hydrogen atoms in each molecule, and (D) 0.1 to 10 weight parts organoperoxide.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: January 30, 2001
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Osamu Takuman, Makoto Yoshitake
  • Patent number: 6165383
    Abstract: Precursor materials useful for making organic electroluminescent devices such as anthracene derivatives having the structure: ##STR1## R.sub.40 -R.sub.43 and R.sub.44 -R.sub.47 are selected independently from the group consisting of hydrogen, alkyl, aryl, heteroalkyl, heteroaralkyl, nitro, cyano, hydroxy, alkoxy, aryloxy, thio, alkylthio, arylthio, amino, halogen, dialkylamino, diarylamino, diaralkylamino, arylamino, alkylamino, arylalkylamino, carbonyloxy, carbonylalkoxy, carbonylalkyloxy, alkylcarbonyloxy, arylcarbonyloxy, alkoxylcarbonyloxy, sulfonyl, sulfonyloxy. R.sub.48 and R.sub.49 are selected independently from the group consisting of trialkoxysilyl, dialkoxysilyl, trichlorosilyl, dichlorosilyl, heptachlorotrisiloxy, and pentachlorodisiloxy.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: December 26, 2000
    Assignee: Organic Display Technology
    Inventor: Homer Z. Chou
  • Patent number: 6162799
    Abstract: This invention relates to certain naphthoquinone derivatives of the general formula ##STR1## or a salt thereof, in which m, n, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8 are as defined in the description; processes for their preparation; compositions containing such compounds and their use as a pesticide, such as a fungicide and, especially, an insecticide or an acaricide.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: December 19, 2000
    Assignee: BTG International Limited
    Inventors: Bhupinder P. S. Khambay, Duncan Batty, Stuart Cameron
  • Patent number: 6150487
    Abstract: This invention relates to a multifunctional organic alkali metal initiator for the preparation of various kinds of star polymers by anionic polymerization, a process for making the initiator, a process using said initiator for making star polymers and the polymers obtained. The initiator can be represented by the formula: M.sub.a (RMe).sub.b, wherein M is selected from Sn, Ti, Al, Si and/or B; R is a hydrocarbyl group containing 8-100 carbon atoms, a=1-3, b=2.5-6.5, Me is an alkali metal which may be selected from Na and Li. The initiator was synthesized by reacting an organic alkali metal with a conjugated diene and/or a mono-olefin monomer, and then adding hetero-atom containing halide. The star polymer obtained has a radial molecular structure consisting of several macromolecular chain arms radiating from the initiator core, and its molecular weight distribution expressed by GPC presents a uniform singlet.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: November 21, 2000
    Assignee: China Petrochemical Corporation
    Inventors: Xingying Zhang, Guantai Jin, Suhe Zhao
  • Patent number: 6150549
    Abstract: A novel silane compound is disclosed, which is used as a suitable strating material (monomer) of polysilane eligible for the precursor of electroconductive- and photoconductive-materials such as phtoresists as well as polymerization initiators and silicone carbide-based ceramics and which is useful for chemical vapor deposition.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: November 21, 2000
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Masaki Minami, Keizo Ikai, Mitsuo Matsuno
  • Patent number: 6150548
    Abstract: The invention relates to a compound having the formula I ##STR1## wherein R.sup.1 is hydroxy, (1-6C)alkoxy or NR.sup.4 R.sup.5, R.sup.4 and R.sup.5 being independently hydrogen, (1-6C)alkyl, (3-7C)cycloalkyl, (2-6C)alkenyl, (4-6C)aryl or (5-7C)aralkyl, the aryl groups of which may be optionally substituted with halogen, (1-6C)alkyl or (1-6C)alkoxy;R.sup.2 is a halo atom, (1-8C)acyloxy, --O--C(O)--O-(1-6C)alkyl, --O--C(O)--O-(5-7C)aralkyl, --SR.sup.6, --S(O)R.sup.6, --SeR.sup.6 or --Se(O)R.sup.6, R.sup.6 being (1-6C)alkyl or (4-6C)aryl; andR.sup.3 is --Si(R.sup.7).sub.3, R.sup.7 being independently (1-6C)alkyl or (4-6C)aryl. The compounds of the invention may be used as protective groups or as linkers in solid phase organic chemistry.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: November 21, 2000
    Assignee: Akzo Nobel, N.V.
    Inventor: Wim-Jan Koot
  • Patent number: 6147231
    Abstract: A process for producing a compound of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are hydrogen or alkyl, and R is hydrogen or alkyl, which comprises removing the protective group (P) of hydroxyl of a compound of the formula (II): ##STR2## wherein P is a protective group of hydroxyl, .about. indicates an E-isomer, Z-isomer or a mixture thereof, and the other symbols are as defined above; and an intermediate for the production of the compound of the formula (I).
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: November 14, 2000
    Assignee: Shionogi & Co., Ltd.
    Inventors: Akira Takase, Hiroyuki Kai, Takami Murashi
  • Patent number: 6139484
    Abstract: Bridged cyclopentadienyl derivatives having general formula (I)A--X--B (I)wherein:1) A is a monofunctional hydrocarbyl radical having general formula (II) ##STR1## 2) --X-- is the bridge between A and B and consists of a bifunctional radical selected from an alkylene group, a silanylene group, an alkyl substituted silaalkylene group, a siloxasilanylene group;3) B is a monofunctional hydrocarbyl radical selected from:e) any of the A radicals defined above,f) a cyclopentadienyl radical.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: October 31, 2000
    Assignee: Enichem S.p.A.
    Inventors: Paolo Biagini, Gabriele Lugli, Roberto Santi, Giampiero Borsotti, Viviano Banzi
  • Patent number: 6102993
    Abstract: Copper precursor formulations, including a copper precursor with at least one of (a) water, (b) a water precursor and (c) a non-ligand organic hydrate, are useful in CVD processes, e.g., in liquid delivery chemical vapor deposition, for forming a copper-containing material on a substrate. The disclosed copper precursor formulations are particularly useful in the formation of copper layers in semiconductor integrated circuits, e.g., for metallization of interconnections in such semiconductor device structures.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: August 15, 2000
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Gautam Bhandari, Thomas H. Baum, Chongying Xu
  • Patent number: 6087519
    Abstract: The invention relates to an adhesive substance for improved adhesion between a vulcanizable polymer and a metallic reinforcing carrier.The use of an adhesive substance with the following structure is proposed in order to produce an improved adhesion between rubber and a metallic reinforcing carrier:X--(R).sub.n --(Ar).sub.i --(R).sub.m --Y,whereinX: --SH; --Si(Cl).sub.3 ; --Si(OR.sub.1).sub.3 ; --COOHwith R.sub.1 : alkyl remainder (branched and unbranched), particularly --CH.sub.3 ; --C.sub.2 H.sub.5 or --C.sub.3 H.sub.7 ;R: --CH.sub.2 --; --CF.sub.2 --; wherein 0.ltoreq.n,m.ltoreq.12, or--CH.sub.2 --CO--NH--CH.sub.2 --; --CF.sub.2 --CO--NH--CF.sub.2 --; --CH.sub.2 --CO--NH--CF.sub.2 --; --CF.sub.2 --CO--NH--CH.sub.2 --, wherein 0.ltoreq.n,m.ltoreq.4Ar: aromatic and/or heteroaromatic system, comprised of one or several of the following molecules:benzene, phenylene, aniline, thiophene, pyrrole, furane,with or without substituentswherein 0.ltoreq.i.ltoreq.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: July 11, 2000
    Assignee: Continental Aktiengesellschaft
    Inventors: Francis Garnier, Philippe Lang, Richard Michalitsch, Bernd Kaiser, Gerhard E. Nauer
  • Patent number: 6057468
    Abstract: The present invention provides propylene-bridged bidentate silane reagents for modifying the surface of liquid chromatography supports, these supports and methods of making and using the same. When bonded to the surface of a support material, the resulting modified support material provides improved properties, such as better separations and more stable support materials, especially when used in liquid chromatography. These bidentate silanes have the general structure: RSiMe(NMe.sub.2)--(CH.sub.2).sub.3 --SiMeR--NMe.sub.2. R is an n-octadecyl group or an n-tetradecyl group, and Me is a methyl group. When reacted with a silica surface, the resulting modified surface has a structure: PSiO--[RSiMe--(CH.sub.2).sub.3 --SiMeR]--OSiP. PSiO is surface-reacted silica.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: May 2, 2000
    Assignee: Hewlett-Packard Company
    Inventors: Joseph J. Kirkland, John B. Adams, Jr.
  • Patent number: 6051319
    Abstract: An electroluminescence element (EL) obtained by using a silacyclopentadiene derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms and R.sub.1 to R.sub.4 are hydrogen, halogens, alkyl radicals with from 1 to 6 carbon atoms, or a condensed (un)substituted ring if being adjacent).
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: April 18, 2000
    Assignee: Chisso Corporation
    Inventors: Manabu Uchida, Takenori Izumizawa, Kenji Furukawa, Kohei Tamao, Shigehiro Yamaguchi
  • Patent number: 6034151
    Abstract: Polymerizable and hydrolyzable vinylcyclopropane silanes and in particular silicic acid condensates which can be prepared therefrom are described, which exhibit only a low volume shrinkage on polymerization and produce polymers with high mechanical strength and therefore can be used above all as dental material or a constituent thereof.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: March 7, 2000
    Assignee: Ivoclar AG
    Inventors: Norbert Moszner, Thomas Voelkel, Frank Zeuner, Sabine Stein, Volker Rheinberger