Patents Examined by Isabelle R. McAndrews
-
Patent number: 5120411Abstract: The present invention includes a method to produce singlet oxygen from molecular oxygen generated by reaction with a sapphyrin compound excited at an absorbing wavelength to form a triplet species. Specifically, the sapphyrin compound is an alkylated sapphyrin, most preferably diprotonated 3,8,12,13,17,22-hexaethyl-2,7,18,23-tetramethylsapphyrin. Generation of the triplet species may be accomplished in an organic solvent, of which the most preferable solvents are chloroform, methanol or acetonitrile.Also encompassed within the present invention is a method to selectively produce singlet oxygen in an aqueous environment. A sapphyrin compound is incorporated within a membranous vesicle, the vesicle is illuminated with exciting light and the resultant excited triplet state sapphyrin compound reacts with molecular oxygen to produce singlet oxygen. Singlet oxygen was not generated external to the vesicle where the sapphyrin compound is present in an aqueous medium.Type: GrantFiled: December 21, 1989Date of Patent: June 9, 1992Assignee: Board of Regents, The University of Texas SystemInventors: Jonathan L. Sessler, Anthony Harriman, Bhaskar G. Maiya
-
Patent number: 5120707Abstract: Superconducting ceramic layers are made by first electrochemically depositing metal layers containing embedded particulate matter, followed by oxidation of the precursor layer to form the desired superconducting ceramic. The embedded particulate matter may (a) furnish required constituent metals for the superconductor, (b) be a superconductor itself, which may be the same as or different from the superconductor to be formed, or (c) provide adjuvant substances for improving the properties (e.g., electrical or mechanical) of the superconducting layer being formed.Type: GrantFiled: May 22, 1989Date of Patent: June 9, 1992Assignee: Allied-Signal, Inc.Inventors: MacRae Maxfield, Helmut Eckhardt, Ray H. Baughman, Zafar Iqbal
-
Patent number: 5108982Abstract: An aqueous and method for manufacturing a ceramic superconductor coated metal fiber comprises a container for holding a nonaqueous solution inwhich particles of superconductor material are colloidally suspended to form a slurry. A voltage source is provided to influence the slurry with an electric field and a magnet device is provided to influence the slurry with a magnetic field. The magnetic field is oriented relative to the fiber to align the superconductor particles of the slurry in a desired orientation for subsequent attachment onto the surface of the fiber. The voltage source is connected to the metal fiber to electrically bias the fiber as it is drawn through the slurry. Consequently, charged superconductor particles in the slurry attach to the electrically biased fiber. Subsequently, the coated fiber is heated to sinter the aligned particles and establish a ceramic superconductor shell on the metallic fiber substrate.Type: GrantFiled: December 22, 1988Date of Patent: April 28, 1992Assignee: General AtomicsInventors: Lawrence D. Woolf, Frederick H. Elsner, William A. Raggio
-
Patent number: 5098535Abstract: A process for the preparation in high yield of 14.alpha.-hydroxy-4-androstene-3,6,17-trione which has an aromatase inhibition activity and is useful as an antitumor agent, in which the 6.beta.-hydroxyl group of 6.beta., 14.alpha.-dihydroxy-4-androstene-3,17-dione is selectively oxidized with the aid of visible light energy.Type: GrantFiled: February 6, 1990Date of Patent: March 24, 1992Assignee: Snow Brand Milk Products Co., Ltd.Inventors: Masamichi Nakakoshi, Kohji Tamura, Makoto Yoshihama, Nobuo Miyata
-
Patent number: 5051154Abstract: The invention discloses the use of an additive for acid copper plating bath which is chosen based on criteria of creating a shift in the charge transfer overpotential of the bath; or alternatively, creating a differential overpotential between the surface of a high aspect ratio circuit board and the recesses of such boards. The additive may be a single or multi-component additive.Type: GrantFiled: January 29, 1990Date of Patent: September 24, 1991Assignee: Shipley Company Inc.Inventors: Roger F. Bernards, Gordon Fisher, Wade Sonnenberg, Edward J. Cerwonka, Stewart Fisher
-
Patent number: 5049303Abstract: The present invention relates to detergent compositions comprising an organic surfactant, a non-phosphate detergent builder, an ethylene oxide/propylene oxide block copolymer and a polycarboxylate.Type: GrantFiled: November 9, 1988Date of Patent: September 17, 1991Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Isaac I. Secemski, Jesse L. Lynn
-
Patent number: 5035782Abstract: A method for the formation of monomolecular adsorption films of a silane compound having a diacetylene bond is described. The silane compound is chemically adsorbed on a substrate through .dbd.SiO-- bonds and the resultant film is significantly reduced in number of defects such as pinholes. When the monomolecular film is irradiated with actinic light, the diacetylene bonds are convered into a conjugated diacetylene polymer. Similarly, a built-up film of a desired number of monomolecular layers of a silane compound having an acetylene bond formed on a substrate by chemical adsorption and a corresponding number of monomolecular layers of an aliphatic acid or alcohol having an acetylene bond and alternately deposited on the first-mentioned layer is also provided.Type: GrantFiled: June 27, 1989Date of Patent: July 30, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideharu Tamura, Kazufumi Ogawa
-
Patent number: 5032247Abstract: A method and apparatus for conducting electrophoretic separations is described in which heat exchange fluid is passed through hollow fibers in the electrophoretic chamber during the separation process and the separations are conducted in the interstices of the hollow fiber. Hollow fibers made of organic polymers, inorganic materials such as glass and silica, and natural fibers may be used.Type: GrantFiled: September 14, 1989Date of Patent: July 16, 1991Assignee: Separations Technology, Inc.Inventor: Yuri Tarnopolsky
-
Patent number: 5024740Abstract: A method and apparatus for the elimination of unwanted impurities and inclusions from a variety of non-conductive base materials by the application of high power, variable frequency RF energies in selective of rarefied atmospheres. Refined natural quartz is a product acquired by the method using the apparatus herein described.Type: GrantFiled: October 28, 1989Date of Patent: June 18, 1991Inventors: Stephen M. Birken, Karl Birken
-
Patent number: 5024733Abstract: An electroplating process is described for electroplating alloys of palladium and arsenic. The resulting electrodeposits are bright, ductile and remain ductile and crack-free even when the electrodeposits are quite thick. The deposits are quite hard and suitable for contact surfaces particularly in situations where wear characteristics require thick deposits. The electroplating process is also useful for making articles such as bellows by electroform procedures particularly since the electroplated material has extraordinary physical properties (good resilience, low stress and ductility) as well as good corrosion resistance.Type: GrantFiled: May 11, 1990Date of Patent: June 18, 1991Assignee: AT&T Bell LaboratoriesInventors: Joseph A. Abys, Heinrich K. Straschil
-
Patent number: 5024742Abstract: A method for molecularly crosslinking amino acid containing polymers by photoactivating chemical crosslinkers which have been combined with the polymers. Collagen crosslinked by this method can be used as a bioadhesive for sutureless closures of the skin and eye or as a superhydrated material for contact lenses, moist bandage contact lens, lens or corneal implant material, or as a drug delivery mechanism.Type: GrantFiled: February 24, 1988Date of Patent: June 18, 1991Assignee: Cedars-Sinai Medical CenterInventors: Anthony B. Nesburn, Michael Gorin, Marvin Martinez, M. Cristina Kenney, Ezra Maguen
-
Patent number: 5021183Abstract: Personal cleansing compositions comprising alkali metal soap and nonionic guar gum-fatty acid-alkali metal hydroxide complex and exhibiting improved physical properties, lather properties, and mildness. The toilet bars comprise alkali metal soap and from about 0.5 to about 8% by weight nonionic guar gum, which guar gum is provided as a pre-reacted complex prepared by suspending one part by weight guar gum in from about 1 to about 12 parts by weight molten fatty acid and reacting with the suspension from about 0.03 to about 0.2 part by weight alkali metal hydroxide per each part by weight coconut fatty acid.Type: GrantFiled: September 7, 1988Date of Patent: June 4, 1991Inventor: Abel Saud
-
Patent number: 5019280Abstract: Disclosed are conditioning agents and compositions containing such conditioning agents wherein the conditioning agents contain an amine-anionic compound ion-pair complex. These conditioning agents can provide excellent fabric care benefits when applied as part of or in the presence of detergent compositions without significantly impairing cleaning performance. The conditioning agents contain particles which consist essentially of the ion-pair complex and which have an average particle diameter of from about 40 to about 300 microns.Type: GrantFiled: February 8, 1989Date of Patent: May 28, 1991Assignee: The Procter & Gamble CompanyInventors: Debra S. Caswell, Mark H. Mao, Robert Mermelstein, Ellen S. Baker
-
Patent number: 5000870Abstract: The substance of the present invention which contains alkali metal carbonate or alkali metal silicate, alkali metal-organic acid salt, a surface-active agent, alkali metal hydroxide and water is capable of converting waste cooking oil into soap which can be used for washing purposes. The substance contains a minimum amount of or no strong alkali substances and is therefore quite safe for home use. Thus, waste cooking oil may recycled for useful purposes and contamination of sewage with waste cooking oil can be prevented.Type: GrantFiled: August 9, 1988Date of Patent: March 19, 1991Assignee: Mimasu Oil Chemical Co., Ltd.Inventor: Kazuo Shimizu
-
Patent number: 4995947Abstract: A method of coating a substrate with a thin layer of a metal compound by forming a dispersion of an electrophoretically active organic colloid and a precursor of the metal compound in an electrolytic cell in which the substrate is an electrode. Upon application of an electric potential, the electrode is coated with a mixture of the organic colloid and the precursor to the metal compound, and the coated substrate is then heated in the presence of an atmosphere or vacuum to decompose the organic colloid and form a coating of either a combination of metal compound and carbon, or optionally forming a porous metal compound coating by heating to a temperature high enough to chemically react the carbon.Type: GrantFiled: June 29, 1988Date of Patent: February 26, 1991Assignee: The United States of America as represented by the Department of EnergyInventors: Donald J. Sharp, Milton E. Vernon, Steven A. Wright
-
Patent number: 4994200Abstract: In the cleaning and disinfection of endoscopes, the endoscope surfaces to be cleaned are successively(a) brought into contact with a cleaning solution which is heated to 55.degree. to 65.degree. C., kept at that temperature for 1 to 15 minutes and then drained off and which contains a low-foam nonionic surfactant, a proteolytic enzyme, at least one complexing agent and, optionally, other standard detergent constituents, and has a pH value of from 6 to 8;(b) brought into contact with a disinfectant solution which is heated to 55.degree. to 65.degree. C., kept at that temperature for 1 to 15 minutes and then separated off and which contains an aldehyde selected from the group consisting of formaldehyde and aliphatic C.sub.2 -C.sub.8 dialdehydes and at least one complexing agent, and has a pH value of from 6 to 8;(c) washed at least twice with water of which the pH value is adjusted to ph 6-8, the water being heated to 55.degree. to 65.degree. C.Type: GrantFiled: July 26, 1988Date of Patent: February 19, 1991Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Karlheinz Disch, Klaus Hachmann, Klaus Bansemir
-
Patent number: 4988452Abstract: Thickened aqueous automatic dishwashing detergent compositions comprising certain bleach-stable capped polyalkylene oxide block copolymer nonionic surfactants.Type: GrantFiled: June 9, 1988Date of Patent: January 29, 1991Assignee: The Procter & Gamble CompanyInventors: George C. Kinstedt, Sherri L. Myers
-
Patent number: 4987159Abstract: New carbonyl derivatives of 1-phenylindan suitable for use as photoinitiators in the photopolymerization of compounds or mixtures of compounds containing ethylenic double bonds.The carbonyl derivatives of 1-phenylindan according to the present invention possess high efficiency as photoinitiators in terms both of the concentration used and the photopolymerization rate.Type: GrantFiled: April 11, 1990Date of Patent: January 22, 1991Assignee: Fratelli Lamberti S.p.A.Inventors: Giuseppe Li Bassi, Carlo Nicora, Fabrizio Broggi, Aldo Revelli
-
Patent number: 4985128Abstract: Describes a process for controlling the polymerization and cross-linked density of electrophoretic gel products useful for separation of bioorganic molecules, which process does not use initiators common to processes of the art. Electron beam polymerized gels afford the desired advantages of being ultra thin and having a high electrophoretic resolution with programmable porosity profiles.Type: GrantFiled: January 9, 1990Date of Patent: January 15, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Richard C. Ebersole, Robert P. Foss
-
Patent number: 4983309Abstract: For cotton spinning, use is made of a treatment agent containing silicone with viscosity at 25.degree. C. of 10 centistokes or greater such as dimethylsilicone, end hydroxy modified dimethylsilicone or epoxy modified dimethylsilicone and an emulsifier such as polyoxyethylene alkylether or polyoxyethylene alkylphenylether. The treatment agent may also contain a cationic or non-ionic surface-active agent within a specified range of weight ratio. The treatment agent is applied to raw cotton during its bale opening or beating opener process at the rate of 0.001-2.0 wt %.Type: GrantFiled: April 5, 1989Date of Patent: January 8, 1991Assignee: Takemoto Yushi Kabushiki KaishaInventors: Tsukasa Kinoshita, Tomohiro Kato