Nitrogen Attached Directly To Silicon By Nonionic Bonding Patents (Class 556/410)
  • Patent number: 6709772
    Abstract: An organic electrically conductive compound represented by general formula (1): and an organic electroluminescent device using the compound are provided, wherein n is an integer from 1 to 10, k represents any of integers from 2 to n+1, Ar1, Ar1′, Ar2, and Ar2′ are substituted or non-substituted aromatic hydrocarbon rings or heterocyclic rings that share a bond between carbons at 2,3-positions or 4,5-positions of a pyrrole ring in general formula (1) and are fused with the pyrrole ring, respectively, Ar3 is a divalent group of a substituted or non-substituted aromatic hydrocarbon or heterocyclic compound, and R1, R1′, Rk, and Rk′ are aliphatic hydrocarbon groups or substituted or non-substituted aryl or heterocyclic groups, respectively.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: March 23, 2004
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Norio Hasegawa, Akira Shiga, Youichi Itagaki
  • Patent number: 6706424
    Abstract: An organic electrically conductive compound represented by general formula (1): and an organic elctroluminescent device using the compound are provided, wherein n is an integer from 2 to 10, k represents any of integers from 1 to n, Ar1, Ar1′, Ar2, and Ar2′ are substituted or non-substituted aromatic hydrocarbon rings or heterocyclic rings that share a bond between carbons at 2,3-positions or 4,5-positions of a pyrrole ring in general formula (1) and are fused with the pyrrole ring, respectively, and Rk and Rk′ are aliphatic hydrocarbon groups or substituted or non-substituted aryl or heterocyclic groups, respectively.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: March 16, 2004
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Norio Hasegawa, Akira Shiga, Youichi Itagaki
  • Patent number: 6706906
    Abstract: A water repellent composition comprising a compound of the following formula 1, and a compound of the following formula 4 and/or a compound of the following formula 5: RfSi(R)p(X)3−p  Formula 1 RFSi(R1)q(X1)3−q  Formula 4 SiX24  Formula 5 wherein Rf is a fluorine-containing organic group having an etheric oxygen atom, RF is a fluorine-containing organic group having no etheric oxygen atom, each of R and R1 which are independent of each other, is a C1-6 hydrocarbon group containing no fluorine atom, each of X, X1 and X2 which are independent of one another, is a halogen atom or a hydrolyzable group, and each of p and q which are independent of each other, is 0, 1 or 2.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: March 16, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Takashige Yoneda, Yutaka Furukawa, Noriko Torimoto
  • Patent number: 6670507
    Abstract: Compounds of formula I wherein R1 is for example 3-methoxyprop-3-yloxy, R2 is for example methoxy, R3 and R4 are in each case for example isopropyl, and R5 is H2NC(O)—[C(CH3)2]—CH2—, are obtainable by reaction of compounds of formula IV with a metal organic derivative of 1-(3-R1-4-R2-phen-1-yl)-2-R3-3-halogen propanes to form a compound of formula VI, followed by removal of the pseudoephedrine protecting group and the OH group, reaction of the resulting lactone with an amine R5—NH2 and removal of protecting group Z.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: December 30, 2003
    Assignee: Speedel Pharma AG
    Inventors: Daniel Bellus, Alessandro Dondoni
  • Publication number: 20030144275
    Abstract: The present invention is directed to a procedure for making an enantiomerically enriched compound containing a hydronaphthalene ring structure. The process involves reacting oxabenzonorbornadienes with nucleophiles using rhodium as a catalyst and in the presence of a phosphine ligand. The compounds synthesized may be used in pharmaceutical preparations for the treatment of a variety of diseases and conditions.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 31, 2003
    Applicant: AstraZeneca AB
    Inventors: Keith Fagnou, Mark Lautens
  • Publication number: 20030135052
    Abstract: Disclosed is a method for preparing tertiary amine compounds from primary amines and nitrites in the presence of hydrogen gas and a metal catalyst, or metal-containing catalyst composition, at a temperature from about 50° C. to about 200° C. and at a pressure from about 100 psig to 1500 psig. The primary amines and the nitrites used in the process may be diamines and/or dinitriles, or may be combinations of primary amines and/or nitrites. Also disclosed are novel tertiary amine compounds made by the described method.
    Type: Application
    Filed: November 13, 2001
    Publication date: July 17, 2003
    Inventors: Kelley Moran Whittle, Alan Martin Allgeier, THOMAS PAPIN GANNETT, DAVID PAGE HIGLEY
  • Publication number: 20030130534
    Abstract: The present invention is a demulsifying and corrosion-inhibiting compound formed from the salt of an amphiphilic amine and an amphiphilic acid. In a preferred embodiment of the invention, the demulsifier may be a salt of an alkyl amine and an alkyl aryl sulfonic acid. Even more preferably, the demulsifier may be a salt of a methyl, di-cocoyl amine and an alkyl aryl sulfonic acid. According to another embodiment of the invention, an organic system may be demulsified by mixing the salt of an alkyl amine and an alkyl sulfonic acid with the system to be demulsified.
    Type: Application
    Filed: February 4, 2003
    Publication date: July 10, 2003
    Applicant: Pilot Chemical Holdings, Inc.
    Inventor: Robert Golden
  • Publication number: 20030125549
    Abstract: The invention relates to a method for asymmetrically disubstituting carboxylic acid amides on the geminal carbonyl-C atom using two different grignard reagents in the presence of a metal alcoholate compound used as a catalyst and in the presence of another organometallic compound used as a co-catalyst.
    Type: Application
    Filed: December 19, 2002
    Publication date: July 3, 2003
    Inventors: Herwig Buchholz, Urs Welz-Biermann
  • Patent number: 6579955
    Abstract: A linear polymer has repeating units represented by the formula wherein (a) n is an integer greater than or equal to 0, (b) x is an integer greater than or equal to 1, and  represents an unconjugated acetylenic group when x is equal to 1 or conjugated acetylenic groups when x is greater than 1; (c) Ar is an aromatic group, and (c) R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof. The linear polymer may be thermally cured to form a crosslinked polymer.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: June 17, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Craig Homrighausen
  • Publication number: 20030097014
    Abstract: Iminoorganosilanes may be prepared by reacting aminoorganosilanes with organoimines by an amine exchange reaction. The resultant iminoorganosilanes can then be catalytically reduced to produce secondary and tertiary amino silanes. Imidoorganosilanes can be prepared by a similar amine reaction between aminoorganosilanes and organoimides. The imidoorganosilanes can also be reacted to produce tertiary amines. Water-sensitive silane reactants may be employed to yield water-sensitive imino, imido, or amino silane products.
    Type: Application
    Filed: November 16, 2001
    Publication date: May 22, 2003
    Inventors: Steven C. Gedon, Andrea Trottto
  • Patent number: 6534615
    Abstract: The invention relates to a process for preparing an amino-functional organosiloxane of the formula III, (SiO{fraction (4/2)})k(R1SiO{fraction (3/2)})m(R12SiO{fraction (2/2)})p(R13SiO½)q[O½SiR12—R—NH2]s[O½H]t  (III) which comprises reacting an organosiloxane of the formula IV (SiO{fraction (4/2)})k(R1SiO{fraction (3/2)})m(R12SiO{fraction (2/2)})p(R13SiO½)q[O½H]r  (IV) with a cyclic silazane of the formula V where R, Rx, R1, s, t, r, k, m, p and q are as defined in claim 1.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: March 18, 2003
    Assignee: Consortium fur Elektrochemische Industrie GmbH
    Inventors: Oliver Schäfer, Volker Frey, Bernd Pachaly, Andreas Bauer
  • Patent number: 6531620
    Abstract: The invention relates to cyclic silazanes of the formula II in which R is a divalent, Si—C and C—N-bound, optionally cyano- or halogen-substituted C3-C15-hydrocarbon radical, in which one or more, non-adjacent methylene units may be replaced by —O—, —CO—, —COO—, —OCO—, —OCOO—, —S— or —NRX— groups and in which one or more non-adjacent methine units may be replaced by —N═, —N═N— or —P═ groups, where at least 3 and at most 6 atoms are arranged between the silicon atom and the nitrogen atom of the ring, RX is hydrogen or an optionally halogen-substituted C1-C10-hydrocarbon radical, and R2 is a hydrogen atom or a monovalent, optionally cyano- or halogen-substituted, Si-C- bound C1-C20-hydrocarbon radical or C1-C20-hydrocarbonoxy radical, in each of which one or more non-adjacent methylene units may be replaced by —O—, —CO—, —COO&mda
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: March 11, 2003
    Assignee: Consortium fur Elecktrochemische Industrie GmbH
    Inventors: Leonhard Brader, Oliver Schäfer, Andreas Bauer, Volker Frey, Bernd Pachaly
  • Patent number: 6511936
    Abstract: The present invention relates to catalyst systems, processes for making such catalysts, intermediates for such catalysts, and olefin polymerization processes using such catalysts wherein such catalyst includes a component represented by the following formula 1A: wherein R and R′ independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl or organosilyl radical; R1, R2, and R3 independently represent a hydrogen atom, or a substituted or unsubstituted, branched or unbranched hydrocarbyl radical; M is a group IIIB, IVB, VB, VIB, VIIB or VIII transition metal; T independently represents a univalent anionic ligand such as a hydrogen atom, or a substituted or unsubstituted hydrocarbyl halogeno, aryloxido, arylorganosilyl, alkyloriganosilyl, amido, arylamido, phosphido, or arylphosphido group, or two T groups taken together represent an alkylidene or a cyclometallated hydrocarbyl bidentate ligand; L independently represents a sigma donor
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: January 28, 2003
    Assignees: University of Delaware, Chevron Chemical Co.
    Inventors: Klaus H. Theopold, Woo-Kyu Kim, Leonard A. MacAdams, John M. Power, Javier M. Mora, Albert P. Masino
  • Publication number: 20020091142
    Abstract: Compounds of the formula I 1
    Type: Application
    Filed: March 9, 2001
    Publication date: July 11, 2002
    Inventors: Nigel Graham Cooke, Michael Lloyd Sabio
  • Patent number: 6410767
    Abstract: Synthesis of N-silylated mono(cyclopentadienyl) ligands and similar indenyl ligands utilizing the novel silanes is described.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: June 25, 2002
    Assignee: Boulder Scientific Co.
    Inventor: Daniel A. Gately
  • Patent number: 6362289
    Abstract: A linear polymer has repeating units represented by the formula wherein (a) n is an integer greater than or equal to 0, (b) x is an integer greater than or equal to 1, and  represents an unconjugated acetylenic group when x is equal to 1 or conjugated acetylenic groups when x is greater than 1; (c) Ar is an aromatic group, and (c) R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof. The linear polymer may be thermally cured to form a crosslinked polymer.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: March 26, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Craig Homrighausen
  • Patent number: 6335456
    Abstract: For preparing bis-silyl carboxamides in a semi-continuous, reacting an amide or the N-trimethylsilyl derivative thereof with a silylating agent and, at the same time, extracting the bis-silyl carboxamide formed by distillation under reduced pressure.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: January 1, 2002
    Assignee: Atofina
    Inventors: David Reeves, Christophe Ruppin, Didier Faure
  • Patent number: 6335303
    Abstract: The present invention describes methods of making a series of amine-containing organic compounds which are used as ligands for group 3-10 and lanthanide metal compounds. The ligands have electron-withdrawing groups bonded to them. The metal compounds, when combined with a cocatalyst, are catalysts for the polymerization of olefins.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: January 1, 2002
    Assignee: The Regents of the University of California
    Inventors: John G. Watkin, Damon R. Click
  • Publication number: 20010056199
    Abstract: Synthesis of N-silylated mono(cyclopentadienyl) ligands and similar indenyl ligands utilizing the novel silanes is described.
    Type: Application
    Filed: March 26, 2001
    Publication date: December 27, 2001
    Applicant: Boulder Scientific Company
    Inventor: Daniel A. Gately
  • Patent number: 6313293
    Abstract: The present invention relates to a process for the preparation of amides, comprising reacting amines with carboxylic acids in the presence of silicon amines. The present invention further relates to a process for the preparation of quinazoline derivatives, comprising reacting amines with carboxylic acids in the presence of silicon amines to obtain amides and contacting the resultant amides with quinazoline.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: November 6, 2001
    Assignee: Development Center for Biotechnology
    Inventors: Wen-Chih Chou, Ming-Chen Chou, Yann-Yu Lu, Shyh-Fong Chen
  • Patent number: 6303807
    Abstract: The invention concerns novel compounds having the elements of group 11, 12 or 14; and a tridentate ligand, a method for preparing them and their use in particular as polymerisation catalyst.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: October 16, 2001
    Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.), Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Guy Bertrand, Jean-Bernard Cazaux, Jean-Luc Faure, Hanh Nguyen, Régis Reau
  • Patent number: 6265597
    Abstract: A magnesium amide for use as a magnesium donor not having any Mg—C bonds. The compound is useful for doping GaN with Mg+2. The compound of the present invention is a high molecular weight dimer, preferably a diamide containing one or more silicon substituent groups. Alternatively, the compounds of the present invention may contain amino nitrogens weakly bonded to Mg. The compounds must have sufficient volatility to be useful in chemical vapor deposition.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: July 24, 2001
    Assignee: Georgia Tech Research Corp.
    Inventors: William S. Rees, Jr., Henry A. Luten, III
  • Patent number: 6248686
    Abstract: Organic/inorganic complex porous materials are disclosed having a main skeletal chain containing metal atoms, oxygen atoms, and organic groups. Preferably, the metal atoms, oxygen atoms and organic groups are bound by ionic bonds and/or covalent bonds, and the organic group is bound to at least two metal atoms in the main chain of the skeleton of the porous material. More preferably, 60% or more of the total pore volume in the porous material has a pore diameter in a range of ±40% of the pore diameter, as determined from the maximum peak in a pore size distribution curve. Alternatively, at least one peak is present at a diffraction angle that preferably corresponds to a d value of at least 1 nm in an x-ray diffraction pattern. Method of making such organic/inorganic complex materials are also disclosed.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: June 19, 2001
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Shinji Inagaki, Shiyou Guan, Yoshiaki Fukushima
  • Patent number: 6235833
    Abstract: A water-repellent solution for forming a superior water-repellent film on a glass substrate is produced by subjecting a fluoroalkyl-group contained silane compound to a hydrolysis and a condensation polymerization. With this, at least dimers and trimers of the silane compound are produced. In case wherein the fluoroalkyl-group contained silane compound is of a type having the following general formula, satisfied performance of the formed water-repellent film is expected: CF3(CF2)m(CH2)2SiX3 wherein “m” is equal to or greater than 7 (seven) and “X” represents halogen, isocyanate-group or alkoxy-group, said alkoxy-group including methoxy-group [OCH3], ethoxy-group [OC2H5] or isopropoxy-group [OC3H5]. When the “m” is equal to or greater than 9 (nine), the performance of the film is much increased.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: May 22, 2001
    Assignee: Central Glass Company, Limited
    Inventors: Yoshinori Akamatsu, Shigeo Hamaguchi
  • Patent number: 6211393
    Abstract: Silicon compound of general formula a), in which A, B, C, D are radicals which are different from OH and are covalently bonded to Si; two or three of these bond that are linked to Si are Si—O—C, Si—S—C or Si—N—C type bonds and are hydrolyzable in vivo, forming Si—OH bonds that are biologically active especially when in contact with living tissue, the A and D bonds of formula b) being invariably hydrolyzable; at least one of the hydrolyzable bonds corresponds to an acyloxy, aryloxy or vinyloxy radical; at least one of the compounds obtained after hydrolysis of the hydrolyzable bonds is a stabilizer, and the non-hydrolyzable bonds, which are of the Si—C type, correspond to hydrocarbon or fluorocarbon radicals for which Si is not directly linked to the phenyl ring.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: April 3, 2001
    Assignee: Exsymol S.A.M.
    Inventors: Marie Christine Seguin, Jean Gueyne, Jean-Francois Nicolay, Andre Franco
  • Patent number: 6197987
    Abstract: The present invention relates to chemically stable, polyfunctional, perfluorinated polyorganosiloxanes (POS) comprising on the one hand fluorinated lateral grafts resulting from the hydrosilylation of perfluorinated olefins with SiH units and having alkyl and/or alkyl ester linkages but not ether linkages, and on the other hand other, non-perfluorinated functional units E capable of giving them diverse and varied physical and chemical properties and opening up avenues in numerous applications. Examples of these POS according to the invention are those of the following formula: According to another of its features, the invention relates to a process for the preparation of these polyfunctional perfluorinated POS. Applications: antifoams, agents for lowering surface tension, dirt repellents, antiadhesives, lubricants, oleophobic and/or hydrophobic agents, coatings etc.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: March 6, 2001
    Assignee: Rhone-Bouling Chimie
    Inventors: Philippe Jost, Philippe Karrer, Gérard Mignani, Philippe Olier
  • Patent number: 6180810
    Abstract: Silyl amine compounds which have a proton available for covalent bonding to a metallocene metal center are disclosed.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: January 30, 2001
    Assignee: Boulder Scientific Company
    Inventor: Daniel A. Gately
  • Patent number: 6172250
    Abstract: A process for the preparation of biologically active silicon compounds by hydrolysis of a precursor which produces a compound which prevents the formation of polymers from the silicon hydrolyzed bonds.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: January 9, 2001
    Assignee: Exsymol S.A.M.
    Inventors: Marie-Christine Seguin, Jean Gueyne, Jean-Francois Nicolay, Andre Franco
  • Patent number: 6156917
    Abstract: A magnesium amide for use as a magnesium donor not having any Mg--C bonds. The compound is useful for doping GaN with Mg.sup.+2. The compound of the present invention is a high molecular weight dimer, preferably a diamide containing one or more silicon substituent groups. Alternatively, the compounds of the present invention may contain amino nitrogens weakly bonded to Mg. The compounds must have sufficient volatility to be useful in chemical vapor deposition.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: December 5, 2000
    Assignee: Georgia Tech Research Corporation
    Inventors: William S. Rees, Jr., Henry A. Luten, III
  • Patent number: 6121474
    Abstract: Protected amine anionic polymerization initiators useful in the preparation of polymers having a protected amine functional group. The initiators are very soluble in hydrocarbon solvents.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: September 19, 2000
    Assignee: FMC Corporation
    Inventors: James Anthony Schwindeman, Eric John Granger, Roderic Paul Quirk, Randy W. Hall, Robert James Letchford
  • Patent number: 6113815
    Abstract: The composition formed by mixing an organosilane with an ether. Water-stabilized organosilane compounds. A water stable composition made from the ether and organosilane composition and water. A method of treating a substrate by mixing or contacting the substrate with the product, compound, or composition of this invention for a period of time sufficient for treatment of the substrate. A treated substrate having adhered thereto the product, compound, or composition of this invention. A method of dyeing and treating a substrate. A method of antimicrobially treating a food article. A method of antimicrobially coating a fluid container. A method of antimicrobially coating a latex medical article.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: September 5, 2000
    Assignee: Bioshield Technologies, Inc.
    Inventors: Jacques E. Elfersy, Joachim Berkner, Timothy C. Moses
  • Patent number: 6093825
    Abstract: Methods for conversion of anilines to 1,2-dihydroquinolines. 1,2-dihydroquinoliiies are generated from combining an aniline, a silylating agent, and further condensing with a ketone in the presence of a catalyst. In one aspect, the silylation of the aniline may be performed in a one-step synthesis by adding the silylating, agent to the same reaction vessel as the ketone, aniline, and catalyst. In a second aspect, the 1,2-dihydroquinoline is generated in a two-step synthesis where an N-silyl aniline is formed prior to the addition of the ketone and catalyst.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: July 25, 2000
    Assignees: American Home Products, Ligand Pharmaceuticals Incorporated
    Inventors: Reinhold H. W. Bender, James P. Edwards, Todd K. Jones
  • Patent number: 6087518
    Abstract: Novel silanes having the formula (RSO.sub.3).sub.2 --Si--Q.sub.2.0.5HX are described. Synthesis of silylated bis-cyclopentadienyl and N-silylated mono(cyclopentadienyl) ligands and similar indenyl ligands utilizing the novel silanes is described.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: July 11, 2000
    Assignee: Boulder Scientific Company
    Inventor: Daniel Anthony Gately
  • Patent number: 6060617
    Abstract: Organometallic amide compositions and processes for preparing the same, for example, by: reacting an alkali metal, alkali metal hydride, or alkali metal amide with a substituted amine in the absence of an electron carrier; reacting an alkali metal with a substituted amine in the presence of an electron carrier in a hydrocarbon solvent; distilling a composition which includes an alkali metal amide and a reduced electron carrier to recover the alkali metal amide; reacting an alkali metal with a substituted amine in the presence of an alkyl halide; and reacting a substituted amine capable of reacting with an alkali metal to form a hydrocarbon insoluble alkali metal amide with an alkali metal in the presence of a substituted amine capable of reacting with an alkali metal to form a hydrocarbon soluble alkali metal amide.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: May 9, 2000
    Assignee: FMC Corporation
    Inventors: Randy W. Hall, Bobby J. McElroy, James A. Schwindeman, Conrad W. Kamienski, Terry L. Rathman, Robert C. Morrison
  • 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: 6051729
    Abstract: A process for preparing organosilazane and ammonium chloride, by reaction of an organochlorosilane with ammonia in the presence of organosilazane as solvent, wherein ammonium chloride is removed from the resulting organosilazane and ammonium chloride-containing mixture, the improvement comprising adding an antiblocking agent to the mixture before removal, or to the ammonium chloride after its removal, such that a non-blocking, reusable ammonium chloride product is obtained.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: April 18, 2000
    Assignee: Wacker-Chemie GmbH
    Inventors: Richard Weidner, Walter Benischke, Gunther Uhlendorf
  • Patent number: 6046348
    Abstract: The present invention provides a silane compound represented by general formula, I, below, a method for preparing the silane compound and a photoreceptor for use in electrostatic photography utilizing the silane compound. Accordingly, the present invention provides an electrophotographic photoreceptor having an enhanced mechanical strength, a high sensitivity and superior stability to environmental conditions.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: April 4, 2000
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Wataru Yamada, Katsumi Nukada, Masahiro Iwasaki
  • Patent number: 6031119
    Abstract: Polyalkylene guanidine salts or polyalkylene biguanidine salts having a branched silane compound of formula I show excellent antimicrobial activity and can be applied to various materials including fibers, wood, paper, glass, resins and metals: ##STR1## wherein A is oxyethylene, oxypropylene, oxybutylene, oxystyrene, diphenylsulfone, diphenyl sulfide or alkylamide, which repeating number is 1 to 100,000, or straight or branched alkyl chain containing 1 to 20 carbon atoms;Y represents a blank, HCl, HBr, HI, HNO.sub.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: February 29, 2000
    Assignee: Yukong Limited
    Inventors: Byung-Hyoung Lee, Woo-Sun Kim, Young-Jun Kim, Sang-Gu Bang, Kwang-Min Lim, Sang-Rak Choi, Keum-Chan Joo
  • Patent number: 6011167
    Abstract: Polyorganosiloxazane is provided which is capable of being converted into a ceramic material having low dielectric constant. The polymer according to the present invention is characterized by comprising the main repeating units of --(RSiN.sub.3)--, --(RSiN.sub.2 O)--, --(RSiNO.sub.2)-- and --(RSiO.sub.3)--, wherein, R represents an alkyl, alkenyl, cycloalkyl, aryl, alkylamino or alkylsilyl group, and by having a number-average molecular weight ranging from 300 to 100,000. The polyorganosiloxazane of the present invention has superior thermal resistance, and a ceramic material obtainable by firing the same at a predetermined temperature shows very low specific dielectric constant of 2.7 or less, making it useful particularly as a material in electronics.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: January 4, 2000
    Assignee: Tonen Corporation
    Inventors: Yuuji Tashiro, Osamu Funayama
  • Patent number: 5981143
    Abstract: A photosensitive photoresist material which is effective for use as an ion etch barrier layer after patterning. The photoresist composition includes the reaction product of a compound having the general formula R.sub.1 --COO--(CH.sub.2).sub.n --O--R.sub.2 and a silylating agent.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: November 9, 1999
    Assignee: TRW Inc.
    Inventors: Dean Tran, William L. Jones, Harvey N. Rogers
  • Patent number: 5976403
    Abstract: A process for producing dispersions of atmospherically stable, coated alkali metal particles and atmospherically stable, coated alkali metal powders by agitating a mixture of molten alkali metal in a hydrocarbon oil at dispersion speeds, optionally in the presence of a dispersing agent, contacting the molten alkali metal-hydrocarbon oil dispersion, above or below the surface of the dispersion, with up to 3 weight percent anhydrous carbon dioxide while agitating the dispersion for at least 1 minute. The dispersion in oil can be used directly in chemical reactions. The bulk of the oil can be removed from the dispersions to produce oil wet particles, the oil wet particles car be washed with a low boiling hydrocarbon to produce hydrocarbon wet particles which can be dried to produce atmospherically stable powders of coated metal particles. The dispersed particles in oil, the oil wet particles, the hydrocarbon wet particles and the atmospherically stable powders can each be used in chemical reactions.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: November 2, 1999
    Assignee: FMC Corporation
    Inventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr., James A. Schwindeman
  • Patent number: 5973175
    Abstract: An ultrafine titanium dioxide powder is disclosed that can be produced by hydrothermal treating an amino titanium oxalate composition. Ultrafine titanium dioxide powders are useful in cosmetic and other applications for controlling exposure to ultraviolet (UV) light.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: October 26, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Salvatore Anthony Bruno
  • Patent number: 5965757
    Abstract: A method for the synthesis of certain N-silylated cyclopentaphenanthrene (Group IV metal) complexes is disclosed.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: October 12, 1999
    Assignee: Boulder Scientific Company
    Inventor: Fredric Askham
  • Patent number: 5914419
    Abstract: The organosilicon compound of the following chemical formula, which is useful for introduction of silylphenyl groups having a hydrosilyl group into polymer terminals and the like, is disclosed. wherein R.sup.1 is a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group; R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: June 22, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shinichi Sato, Noriyuki Koike, Masatoshi Arai
  • Patent number: 5874601
    Abstract: A process of protecting a 1,2- or 1,3-aminoalcohol for reductive amination coupling is provided. The alcohol is protected with trimethylsilyl chloride. Trimethylsilyl protected norepinephrine derivatives useful in the preparation of arbutamine are also provided.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: February 23, 1999
    Assignee: Abbott Laboratories
    Inventors: William T. Monte, Aline C. Lindbeck
  • Patent number: 5869724
    Abstract: The present invention provides asymmetric bidentate silane reagents from modifying the surface of liquid chromatography supports, the 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: R.sub.1 SiMe(NMe.sub.2)--(CH.sub.2).sub.n --SiMeR.sub.2 (NMe.sub.2). R.sub.1 is an alkyl group having from 1 to 30 carbon atoms, and R.sub.2 is an alkyl group having from 8 to 18 carbon atoms. R.sub.1 is a different alkyl group than R.sub.2. Me is a methyl group, and n has a value 2 or 3. In certain embodiments, R.sub.2 includes at least one functional group. When reacted with a silica surface, the resulting modified surface has a structure: PSiO--?R.sub.1 SiMe--(CH.sub.2).sub.n --SiMeR!--OSiP. PSiO is a surface reacted silica.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: February 9, 1999
    Assignee: Hewlett-Packard Company
    Inventors: Joseph J. Kirkland, John B. Adams, Jr.
  • Patent number: 5726308
    Abstract: A process for preparing high purity solutions of highly substituted lithium amide bases by direct reaction of lithium metal with highly substituted amine bases alone or in an ether solvent, a hydrocarbon solvent or in a mixed ether/hydrocarbon solvent mixture, optionally in the presence of a catalyst selected from tin salts and transition metal salts of Groups 4B, 5B, 6B, 7B, and 8 of the Periodic Table.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: March 10, 1998
    Assignee: FMC Corporation
    Inventors: Randy W. Hall, Robert S. Wedinger, Terry L. Rathman, James A. Schwindeman
  • Patent number: 5672662
    Abstract: Active esters of PEG acids and related polymers are provided that have a single propionic or butanoic acid moiety and no other ester linkages. These polymer acids have a half life in water of from about 10 to 25 minutes. For example, alpha-methoxy, omega-propionic acid succinimidyl ester of PEG ("methoxy-PEG-SPA") has a nearly ideal reactivity with amino groups on proteins and other biologically active substances. The half life of methoxy-PEG-SPA is about 16.5 minutes in water. The invention also provides conjugates with proteins, enzymes, polypeptides, drugs, dyes, nucleosides, oligonucleotides, lipids, phospholipids, liposomes, and surfaces of solid materials that are compatible with living organisms, tissue, or fluid.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: September 30, 1997
    Assignee: Shearwater Polymers, Inc.
    Inventors: J. Milton Harris, Antoni Kozlowski
  • Patent number: 5672760
    Abstract: The present invention provides an ablatively photodecomposable polymer having a photoabsorber bound to the polymer (the "ablatively photodecomposable polymer") which does not phase separate, nor does it crystallize. The ablatively photodecomposable polymer provides even ablation, high resolution and in preferred embodiments, can withstand potassium permanganate etchant and ferric chloride etchant. The ablatively photodecomposable polymer is strippable, although it can remain on the substrate if desired. The ablatively photodecomposable polymer comprises a polymer to which a photoabsorber is bound, either covalently or ionically. The present invention is also directed to a process for forming a metal pattern on a substrate employing the ablatively photodecomposable polymer.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: September 30, 1997
    Assignee: International Business Machines Corporation
    Inventors: Francis Charles Burns, William Weathers Fleming, Victor Yee-Way Lee, Randy William Snyder
  • Patent number: 5648511
    Abstract: A synthesis is described for intermediates which are readily amenable to the large scale preparation of hydroxyethylurea-based chiral HIV protease inhibitors. The method includes forming a diastereoselective epoxide or cyanohydrin from a chiral alpha amino aldehyde.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: July 15, 1997
    Assignee: G.D. Searle & Co.
    Inventors: John S. Ng, Claire A. Przybyla, Richard A. Mueller, Michael L. Vazquez, Daniel P. Getman, John J. Freskos, Gary A. DeCrescenzo, Deborah E. Bertenshaw, Robert M. Heintz, Suhong Zhang, Chin Liu, Scott A. Laneman