Patents Assigned to E
  • Antistatic polymer blend
    Patent number: 5037875
    Abstract: The dissipation of static electricity from film of ethylene/carboxylic acid copolymer is improved by the incorporation of a combination of antistatic compounds therein, viz sorbitan monooleate and certain alkyl phenol poly(ethylene oxides).
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: August 6, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: James R. deGaravilla
  • Process of manufacturing ultrahigh molecular weight linear polyethylene shaped articles
    Patent number: 5037928
    Abstract: A process for preparing an ultrahigh molecular weight linear polyethylene (UHMWLPE) exhibiting a combination of properties including a creep resistance of less than 1% demonstrated under exposure to a temperature of 23.degree. C. (+ or -1.degree. C.) and a relative humidity of 50 (+ or -2% for 24 hours under a compression of 1000 psi) without sacrificing excellent tensile and flexural properties. The invention includes the use of an inert gas and a prescribed pattern of heating and cooling including a further heat and cooling treatment to create the superior properties of the UHMWLPE. Also included is the product of the process invention.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: August 6, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Stephen Li, Edward G. Howard, Jr.
  • Binary azeotropic compositions of 1,1-dichloro-1-fluoroethane and n-perfluorobutylethylene
    Patent number: 5037573
    Abstract: The azeotropic mixture of 1,1-dichloro-1-fluoroethane and n-perfluorobutylethylene is disclosed. The azeotropic mixture is useful as: a cleaning agent, a blowing agent, a refrigerant, an aerosol propellant, a fire extinguishing agent, a heat transfer medium and a power cycle working fluid.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: August 6, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Abid N. Merchant
  • Method for inhibiting loss of cognitive functions employing a calcium channel blocker alone or in combination with an ACE inhibitor
    Patent number: 5037821
    Abstract: A method is provided for inhibiting loss of cognitive function, including memory, which may or may not be associated with Alzheimer's disease, in a mammalian species by administering a benzazepine-type or a pyrimidine-type calcium channel blocker such as diltiazem, SQ 31,765, SQ 32,324, SQ 33,351, SQ 33,537 or SQ 32,547 alone or in combination with an ACE inhibitor, such as captopril or SQ 29,852, over a prolonged period of treatment.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: August 6, 1991
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Zola P. Horovitz
  • Hybrid acrylic star polymers with polysiloxane cores
    Patent number: 5036139
    Abstract: Hybrid star polymers with acrylic arms and crosslinked polysiloxane cores can be made by a polycondensation of substituent alkoxysilyl groups contained in acrylic ester groups of acrylic block copolymers to form the cores.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Harry J. Spinelli
  • Process for the stabilization of high-chloride crystals with modified crystal habit using bromide shells
    Patent number: 5035992
    Abstract: Process for stabilizing the crystalline grain morphology of silver halide grain cores prepared in the presence of a dispersing medium and an aminoazapyridine compound at a pH of 2.5 to 9 and pCl of 0 to 3, at least 50% of the total projected area of the total grain population being noncubic silver halide grain cores and the halide content being at least 50 mole percent chloride, based on total moles of silver precipitated, the improvement wherein after 60% of aqueous silver salt solution based on the total moles of silver precipitated is introduced a second halide salt, e.g., bromide, is added thereby forming on the grain cores a shell of 0.5 to 20 mole % based on the total moles of silver precipitated. The emulsions are useful in X-ray, color separation, inverse transfer films, and "dry-silver" applications, etc.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William A. Houle, Thomas P. Tufano
  • Method and system for the integrated supply of telematic services and graphic information to user terminals, particularly for advertising purposes
    Patent number: 5036314
    Abstract: The user terminals linked to the system are provided with a graphics function capable of generating particular non-elementary image components on the screen of each terminal in dependence on respective input commands. The graphic information is supplied to the user terminals in a manner integrated with the telematic services. The information is supplied after the selection of the preselected command from a command menu, and the formulation, still operating by selection, of the whole requirement, the transmission of which enables the system to produce the graphic advertising insertion associated with the retrieval effected.The proposed application has been developed for use in the supply of telematic services such as data banks, Electronic Yellow Pages, home banking, electronic mail and the like.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: July 30, 1991
    Assignee: Sarin S.S. Ausiliari e Ricerca Informatica
    Inventors: Piero Barillari, Pierluigi DeSanti, Mario Galderesi, Carlo A. Marchi, Franco Natili, Vincenzo Rossiello, Donato Settembre, Francesco Urbinati
  • Nonionic surfactant as a pigment dispersant and film build additive
    Patent number: 5035785
    Abstract: Disclosed herein are electrodepositable cationic baths containing nonionic pigment dispersants. These nonionic pigment dispersants are ethoxylated styrenated phenols which allow for increased production capacity and lower VOC. The ethoxylated styrenated phenols are also used as an additive which can increase film build and improve film smoothness.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Tapan K. Debroy, Ding Y. Chung, Sioe-Heng A. Tjoe, Craig R. Deschner
  • Connector inject and eject cam lever assembly
    Patent number: 5035634
    Abstract: The present invention relates to electrical connectors and, more particularly, to cam levers for injecting and ejecting a connector from another part.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Alexander W. Hasircoglu, David T. Humphrey
  • Method of determining control instructions
    Patent number: 5036262
    Abstract: Methods for rapidly determining the discrete control information to independently propel a plurality of carriages with a synchronous linear motor divided into zones for control are useful for a steady state or a transition operation for a linear motor control system.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dave I. Schonbach
  • Nub yarn
    Patent number: 5035110
    Abstract: A substantially twist-free, crimped, continuous, multifilament yarn containing randomly-spaced, tightly entangled nubs and the process and apparatus used for making such yarns is disclosed. The nub yarn is made by feeding a substantially entanglement-free multifilament crimped continuous yarn through a forwarding jet, through an aspirating entanglement jet where nubs are formed and passing the yarn through a loop guide. The nubs of the yarn are less than one inch in length and the yarn is useful in textile and carpet end uses.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas L. Nelson
  • Chromium oxide catalyst composition
    Patent number: 5036036
    Abstract: An improved Cr.sub.2 O.sub.3 catalyst composition, prepared by pyrolysis of ammonium dichromate, which contains less than 100 ppm of alkali metal and is useful in HF hydrofluorination reactions.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Jan J. Lerou
  • Headbox with concave auxiliary blade
    Patent number: 5035773
    Abstract: Use of a headbox with an auxiliary blade having a concave edge reduces the deflection required to modify the basis weight profile of a wet sheet formed in papermaking apparatus.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Peter J. Hollberg, James C. Swann
  • Process for making 90 K superconductors
    Patent number: 5036043
    Abstract: There is disclosed an improved process for preparing a superconducting composition having the formula MBa.sub.2 Cu.sub.3 O.sub.x wherein M is selected from the group consisting of Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu; x is from about 6.5 to about 7.0; said composition having a superconducting transition essentially of mixing M.sub.2 O.sub.3, BaO.sub.2 and CuO in an atomic ratio of M:Ba:Cu of about 1:2:3 to obtain a powder mixture; heating the resulting mixture in an oxygen-containing atmosphere at a temperature from about 850.degree. C. to about 925.degree. C. for a time sufficient to form MBa.sub.2 Cu.sub.3 O.sub.y, where y is from about 6.0 to about 6.4; and maintaining the MBa.sub.2 Cu.sub.3 O.sub.y in an oxygen-containing atmosphere while cooling for a time sufficient to obtain the desired product.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Munirpallam A. Subramanian
  • Production of substantially linear highly crystalline polyolefins
    Patent number: 5036148
    Abstract: High strength, substantially linear, highly crystalline, high molecular weight-polyolefin shaped structure having a tenacity of greater than 15 g/den and an initial modulus of greater than 500 g/den by drawing never-processed polyolefin at a temperature of 60.degree. C. to 145.degree. C.; and processes for making never-processed polyolefin and such shaped structures.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Henri D. Chanzy, Bruno Rotzinger, Paul Smith
  • Flexible strainer with a releasable cord
    Patent number: 5035800
    Abstract: A strainer which may be adapted to fit over an opening of a variety of food storage and preparation containers comprising a flexible matrix, a flexible cord which is slidably disposed within a conduit, said conduit being located along the perimeter of said matrix and having an opening through which the ends of said cord protrude, and a means for releasably engaging the ends of said cord, wherein after said strainer is placed over the opening of the container, the ends of said cord are pulled through said engaging means to adapt the circumference of the conduit to that of the container, said cord being engaged when said conduit contacts the container.
    Type: Grant
    Filed: June 28, 1989
    Date of Patent: July 30, 1991
    Assignee: E-Z Strainer, Inc.
    Inventor: Robert J. Kopach
  • Binary azeotropic compositions of hexafluoropropylene/ethylene cyclic dimer with methanol or ethanol
    Patent number: 5035830
    Abstract: Azeotropic mixtures of hexafluoropropylene/ethylene cyclic dimer with methanol or ethanol, the azeotropic mixtures being useful as: cleaning agents, blowing agents, refrigerants, aerosol propellants, heat transfer media and power cycle working fluids.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Abid N. Merchant
  • Method for cross-sectioning yarn samples
    Patent number: 5035761
    Abstract: A method for preparing cross-sections of yarn samples along the plane perpendicular to the yarn's longitudinal axis is disclosed. This method involves the steps of passing the yarn through a hollow capsule so that the axes of the yarn and the capsule are aligned in parallel, tensioning the yarn to remove any crimp, forming a solid stub inside the capsule to fix the position of the tensioned yarn, and then cross-sectioning the stub perpendicular to its longitudinal axis.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Robert F. Hempton
  • AB diblock copolymers as charge directors for negative electrostatic liquid developer
    Patent number: 5035972
    Abstract: Negative-working electrostatic liquid developer consisting essentially of(A) nopolar liquid having Kauri-butanol value less than 30, present in major amount,(B) thermoplastic resin particles having an average particle size by area of less than 10 .mu.m, and(C) an AB diblock copolymer charge director compound as defined. Optionally a colorant and charge adjuvant are present. The process of making the electrostatic liquid developer is described. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Lyla M. El-Sayed, Loretta Ann G. Page
  • Photosensitive semi-aqueous developable gold conductor composition
    Patent number: 5035980
    Abstract: A semi-aqueous developable photosensitive gold conductive composition which is fireable in a nonoxidizing atmosphere is developable in an aqueous solution containing 0.63 percent by weight sodium borate and 8.7 percent by weight butyl cellusolve.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: July 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William J. Nebe, Osborne, James J.