Patents Assigned to E
  • Patent number: 4769165
    Abstract: Acetic acid is substituted for a portion of the chromic oxide employed in the hydrothermal reaction of chromium trioxide and chromic oxide to form ferromagnetic chromium dioxide.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Horng-Yih Chen, Terry G. Crandall, James W. Bertoncino
  • Patent number: 4769269
    Abstract: A conductive through-hole hole is formed by through a dielectric sandwiched between conductors forming a noncircular hole in a conductor, etching a hole through the dielectric and by deforming at the conductor which has been undercut during the etching.
    Type: Grant
    Filed: March 25, 1987
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Daniel D. Johnson, Herbert L. Fritz
  • Patent number: 4769425
    Abstract: An hydroxy functional epoxy-polyester graft copolymer and solvent-based thermosetting coating composition comprising said copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy functional epoxy-polyester graft copolymer is the product of polymerization of certain lactone monomers in the presence of hydroxy functional epoxy amine adduct precursor. The precursor resin is the reaction product of diepoxide with aliphatic diol and, subsequently, with hydroxy functional secondary amine. The polymerization of the lactone monomers is carried out at a temperature between about 50.degree. C. and about 300.degree. C.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew H. Dervan, Dennis J. Grebur, Panagiotis I. Kordomenos
  • Patent number: 4769060
    Abstract: The invention relates to certain sulfonylurea compounds having an ester group ortho to the sulfonylurea linkage which have been found to be excellent preemergent and postemergent herbicides or plant growth regulators.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald J. Dumas
  • Patent number: 4769273
    Abstract: A bicomponent film of a hydrophilic copolyester having a WVTR of at least 3500 gm.mil/m.sup.2 /24 hrs. of a poly(etherimide) ester elastomer containing about 25-60 weight percent ethylene oxide units, and a hydrophobic copolyester having a WVTR of 400-2500 gm.mil/m.sup.2 /24 hrs. of a poly(etherimide) ester elastomer or a segmented copolyester elastomer having no more than about 20 weight percent ethylene oxide units in the hydrophobic elastomers, the bicomponent film having a separation ratio for water vapor of at least 1.2 as determined by ASTM/E 96-66 (Procedure BW).
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: September 6, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Guenther K. Hoeschele, George J. Ostapchenko
  • Patent number: 4769371
    Abstract: Pyridine compounds of the formula ##STR1## wherein R.sub.4 is aryl or heterocyclo are disclosed. These compounds are useful as cardiovascular agents due to their calcium entry blocking vasodilator activity.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: September 6, 1988
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Karnail Atwal
  • Patent number: 4769562
    Abstract: The blocking circuits which, during precharge, inhibit the data passage to the AND and OR planes of a dynamic programmable logic array with NOR-NOR structure, implemented in C-MOS technology, comprise a pair of transistors with complementary channel doping, the first of which controls the signal passage to the AND or the OR plane, respectively, and the second inhibits the gates of the respective plane during precharge.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: September 6, 1988
    Assignee: CSELT - Centro Studi E Laboratori Telecommuniazioni S.p.A.
    Inventor: Guido Ghisio
  • Patent number: 4767017
    Abstract: A filament-wound pressure vessel constructed of a rigid composite of an epoxy resin matrix reinforced with continuous filaments of a p-aramid coated with an adhesion modifier.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Francis M. Logullo, Sr., Yun-Tai Wu, George E. Zahr
  • Patent number: 4767764
    Abstract: Alkoxyalkyl and alkylmercaptoalkyl substituted bridged benzofuroisoquinolines have opioid antagonist, and/or appetite-controlling properties. Preferred compounds are kappa receptor selective antagonists. Examples of such preferred compounds are 5-Methoxymethyl-3-n-propyl- 1,2,3,4,5,6,7,7a-octahydro-4a,7-ethanobenzofuro[3,2-e]isoquinolin-9-ol and 3-Cyclopropylmethyl-5-methoxymethyl-1,2,3,4,5,6,7,7a-octahydro-4a,7-ethano benzofuro[3,2-e]isoquinoline-9-ol.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Engelbert Ciganek
  • Patent number: 4767829
    Abstract: A hydroxy functional epoxy-polyester graft copolymer and solvent-based thermosetting coating composition comprising said copolymer and blocked polyisocyanate crosslinking agent. The coating composition may be formulated as a hot sprayable, high solids coating composition suitable for use as a chip resistant automotive vehicle primer adapted for use on body panel areas subject to chipping by stones, gravel and other road debris. Alternatively, the composition may be formulated as a high solids composition sprayable with conventional spraying equipment. The hydroxy-functional epoxy-polyester graft copolymer is prepared by polymerization of lactone monomers in the presence of hydroxy functional epoxy ester resin precursor. Such precursor resin is formed by reaction of diepoxide chain extended with dicarboxylic acid and chain terminated with acid component comprising primary hydroxy functional acid.
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Panagiotis I. Kordomenos, Andrew H. Dervan, Dennis J. Grebur
  • Patent number: 4767561
    Abstract: Azeotropic admixture of 1,1,2-trichloro-1,2,2- trifluoroethane, methanol, and 1,2-dichloroethylene useful in solvent cleaning applications.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert A. Gorski
  • Patent number: 4767357
    Abstract: A connector having a plurality of terminals formed therein with the mating ends of the terminals forming stacked pairs across one surface of the connector is characterized by the tail ends of the terminals forming a linear array across another surface of the housing, linearly adjacent pairs of tail ends corresponding to stacked pairs of mating ends. Each tail end has a first and a second conductor mounting surface thereon.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Alexander W. Hasircoglu
  • Patent number: 4766954
    Abstract: There is disclosed a process for producing an optical waveguide comprising contacting at least one optically smooth surface of a single crystal of K.sub.1-x Rb.sub.x TiOMO.sub.4 wherein x is from 0 to 1 and M is P or As with a specified molten salt of at least one of Rb, Cs and Tl at a temperature of from about 200.degree. C. to about 600.degree. C. for a time sufficient to increase the surface index of refraction at least about 0.00025 with respect to the index of refraction of the starting crystal, and cooling the resulting crystal. The product made thereby and a waveguide device using the same are also disclosed.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John D. Bierlein, Lothar H. Brixner, August Ferretti, William Yang-Hsing Hsu
  • Patent number: 4767670
    Abstract: A chromatographic packing useful for the separation of oligonucleotides is disclosed. The packing includes an insert porous support particle and a silane bonded phase comprising a weak anion exchange group in close proximity to at least one polar non-ionic group.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Geoffrey B. Cox, Anthony Atkinson, Peter A. D. Edwardson, Michael D. Scawen
  • Patent number: 4768020
    Abstract: A hot body activates, such as by a person or a car moving into an area scanned through a lens by a passive infrared detector, a light control system having an adjustable length turn on duration for each hot body intrusion turn on cycle. The light control system also includes a photocell deactivation sensor that is in a daylight deactivation circuit for the light control system with the light sensing photocell positioned behind a multifaceted scan zone lens, along with the infrared detector. A manually switch activated circuit is also provided with the light control system for an emergency blinking light mode of operation as an alarm.
    Type: Grant
    Filed: May 15, 1986
    Date of Patent: August 30, 1988
    Assignee: Paul E. Yarbrough, Jr.
    Inventor: Wen-Chin Chen
  • Patent number: 4767445
    Abstract: This invention relates to novel ortho-(azinyl)benzenesulfonamides, such as N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-2-(2-pyridinyl)benzene sulfonamide, and their use as pre-emergent or post-emergent herbicides or plant growth regulants.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Patent number: 4767828
    Abstract: A polyester-based spandex filament or film is provided. The filaments when used swim-wear fabrics provide the fabrics with increased resistance to mildew-induced degradation. The filaments are formed from a spandex derived substantially from a poly(1,2-dimethyl-1,3-propylene 1,12-dodecanedioate) glycol having no more than 15 milliequivalents of glycol acidity per kilogram of glycol, which glycol is capped with an organic diisocyanate and then chain-extended with an aliphatic diamine.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: August 30, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gary A. Lodoen
  • Patent number: 4767756
    Abstract: Benzazepine derivatives useful, for example, as cardiovascular agents, are disclosed. These compounds have the general formula ##STR1## and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: August 30, 1988
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Jagabandhu Das, David M. Floyd
  • Patent number: 4766260
    Abstract: An improved gas-phase process for the manufacture of 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethane by contacting a suitable tetrahaloethylene with hydrogen fluoride in the presence of a selected metal on a high fluorine content alumina support, the reaction being conducted under controlled conditions whereby the production of pentafluoroethane is minimized.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: August 23, 1988
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Leo E. Manzer, V. N. Mallikarjuna Rao
  • Patent number: 4766185
    Abstract: Hydroxy functional polysiloxane graft copolymers are provided. The copolymer is crosslinkable by hydroxy-reactive crosslinking agent and, in particular, is suitable for use in thermosetting coating compositions adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic. The copolymer has a number average molecular weight between about 1,300 and about 15,000, has a hydroxyl number between about 30 and about 300, and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polysiloxane macromonomer. The macromonomer is the reaction product of (i) isocyanato monomer having the formula: ##STR1## with (ii) hydroxy functional polysiloxane reactant containing 0-10 urethane linkages per molecule.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: August 23, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Rose A. Ryntz, Kenneth R. Kurple, Panagiotis Kordomenos