Patents Assigned to E
  • Patent number: 4806671
    Abstract: Substituted acenaphthenes and their use as inhibitors of phospholipase A.sub.2 are provided. The acenaphthenes have the formula ##STR1## wherein R.sup.1 is H or alkyl;R.sup.2 is alkyl, cycloalkyl, or aryl; andR.sup.1 and R.sup.2 taken together are various aryl groups optionally substituted; andA is .dbd.O, .dbd.CH.sub.2 and derivatives thereof, ##STR2## and derivatives thereof, or .dbd.NOH and derivatives thereof.
    Type: Grant
    Filed: May 7, 1986
    Date of Patent: February 21, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William C. Ripka, William J. Sipio
  • Patent number: 4806451
    Abstract: The invention relates to a process for producing an image on a light-sensitive tonable layer comprising the steps of:(A) exposing the light-sensitive layer imagewise to produce imagewise tacky and complementary non-tacky areas;(B) bringing the imagewise-exposed layer into surface-to-surface contact with a supported non-photosensitive transfer layer containing at least one finely divided powder and/or a dissolved dye in a binder; and(C) separating the transfer layer from the light-sensitive layer, whereby the transfer layer adheres selectively to the imagewise tacky areas,the improvement wherein, the binder of the transfer layer consists essentially of(a) about 55-97 wt. % of at least one polymer in the form of a powder having a minimum film-forming temperature of above 50.degree. C., and(b) about 3-45 wt.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: February 21, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Helmut H. Frohlich
  • Patent number: 4806142
    Abstract: Certain substituted pyrimidine sulfonylureas, such as 3-[[[-(4-dimethoxymethyl)-6-methylpyrimidin-2-yl]aminocarbonyl]aminosulfon yl]-2-thiophenecarboxylic acid, methyl ester, are selective pre-emergence and/or post-emergence herbicides.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: February 21, 1989
    Assignee: E. I. DuPont De Nemours and Company
    Inventor: Rafael Shapiro
  • Patent number: 4804703
    Abstract: It has now been found that a unique combination of additives makes mineral-reinforced semi-crystalline polyamides readily processible by extrusion blowmolding to make hollow, stiff parts of various shapes. The compositions consist essentially of semicrystalline polyamide, 15-50 weight percent mineral filler reinforcing agent; 1-25 weight percent of an ionic copolymer of at least one alpha-olefin and at least one alpha, beta-unsaturated carboxylic acid in which the acid moiety is partially neutralized with metal ions, and 0.1 to 3 weight percent of fibrillar fluoropolymer resin. Percents are by weight of compositions.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Pallatheri M. Subramanian
  • Patent number: 4804078
    Abstract: The device comprises a flat element (9), mounted on a pivot (12) substantially lying in the plane of symmetry of the conveyor belts, and having a stroke that runs from a first lateral sorting position of the carried objects (8), to a second symmetrical position with respect to the pivot, and moreover a set of chutes (7) with convergent axis, placed symmetrically and below on both sides with respect to this pivot, to convey the objects being transported to their respective containers (3), situated below said chutes, said stroke being controlled by a suitable actuator.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: February 14, 1989
    Assignee: Meccanizzazione Postale E Automazione SpA (MPA)
    Inventor: Mario Scata'
  • Patent number: 4804512
    Abstract: A process for making a polyhexamethylene adipamide fiber with a spherulite rating of 1 in which a molten polymer of polyhexamethylene adipamide is injected with fluorocarbon and subjected to low shear.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William T. Windley
  • Patent number: 4804732
    Abstract: A thermosetting coating composition adapted to form a flexible cured coating over a variety of substrates, such as metal and plastic containing a hydroxy functional urethane modified polysiloxane graft copolymer and an alkylated melamine crosslinking agent. The copolymer has a number average molecular weight between about 1,000 and about 4,000, has a hydroxyl number between about 30 and about 300, contains about 1-10 urethane linkages per molecule and is the reaction product of carbon-carbon double bond-reactive monoethylenically unsaturated monomer with hydroxy functional carbon-carbon double bond-bearing branched polysiloxane macromer. The macromer is the reaction product of glycidyl methacrylate and hydroxy functional polysiloxane reactant containing 1-10 urethane linkages per molecule.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Rose A. Ryntz, Kenneth R. Kurple
  • Patent number: 4804621
    Abstract: A novel process for the preparation, for example of gelatino silver chloride and silver bromochloride grains with modified tabular crystal habit is described. These grains are prepared using standard single jet (SJ) or balanced double jet (BDJ) techniques, said preparation occurring in the presence of a modifying amount of an aminoazapyridine as defined and a suitable binder to form well-developed, sensitive tabular elements with a median grain volume in the range of 0.005 to 0.50 .mu.m.sup.3.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas P. Tufano, Dominic M. Chan
  • Patent number: 4804556
    Abstract: A control system for controlling the edge thickness of an extrudate includes an arrangement responsive to a signal representative of the monitored thickness of the extrudate emanating from a die slot controlled by a transversely inward heating element for generating a control set point for that heating element and for a heating element controlling the die slot adjacent a lateral edge thereof.
    Type: Grant
    Filed: August 30, 1984
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kenneth W. Leffew, Joseph D. Trentacosta
  • Patent number: 4804493
    Abstract: A stabilized azeotrope or azeotrope-like composition is disclosed with 1,1,2-trichloro-1,2,2-trifluoroethane and trans-1,2-dichloroethylene containing effective stabilizing amounts of lower alkoxyphenol, 1,2-butylene oxide, nitromethane and/or 1,2-propylene oxide.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert A. Gorski
  • Patent number: 4804497
    Abstract: Substantially builder-free fine fabric detergent compositions are provided which comprise an aqueous solution containing from about 10 to about 70 weight percent of a surfactant mixture consisting essentially of a 1:3 to about 10:1 weight ratio combination of a glycoside surfactant and an antistatic quaternary ammonium surfactant.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: February 14, 1989
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Allen D. Urfer, Gail M. Howell
  • Patent number: 4804784
    Abstract: A process is disclosed for the preparation of methyl- and ethyl-substituted anilines by contacting anilines of specified formula at about 250.degree.-525.degree. C. and about 10 kPa-10 MPa of pressure in the of presence of a nonbasic metal oxide catalyst which when it is a zeolite has pore dimensions of at least about 0.52 nm and has cages with dimensions greater than about 0.75 nm.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Frank J. Weigert
  • Patent number: 4804718
    Abstract: A solvent-based thermosetting coating composition comprising a hydroxy functional epoxy-polyester graft copolymer and polyfunctional, hydroxy-reactive crosslinking agent. The coating composition may be formulated as hot sprayable, high solids coating composition suitable for use as chip resistant automotive vehicle primer suitable for use on body panel areas subject to chipping by stones, gravel and other road debris. The composition also 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 lactone monomers in presence of hydroxy functional epoxy ester resin precursor. The precursor resin is the product of modified diepoxide and hydroxy functional secondary amine, the modified diepoxide being the product of the polymerization of lactone monomers in the presence of diepoxide which has been chain extended with diphenol.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew H. Dervan, Panagiotis I. Kordomenos
  • Patent number: 4804654
    Abstract: Compounds of the formula ##STR1## wherein the symbols have assigned meanings, and their use as insecticides and/or miticides.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mohamed A. H. Fahmy
  • Patent number: 4804677
    Abstract: Novel compounds of the general formula ##STR1## wherein R.sub.1 is lower alkyl, lower cycloalkyl, lower alkenyl, lower alkynyl, lower alkyl carboxymethyl, aryl carboxymethyl, aryl, or aralkyl; A is a direct bond, lower alkylene, or lower alkenylene; x is 1 or 2, provided that when x is greater than 1, different occurrences of the ##STR2## group may be the same or different; Ar is heterocyclic unsubstituted aromatic or aromatic substituted with lower alkyl, lower alkenyl, lower alkynyl, lower alkoxy, halogen, acetamido, amino, nitro, lower alkylamino, hydroxy, lower hydroxyalkyl or cyano; W is alkylene containing from 1 to about 10 carbon atoms; and B is --NR.sub.2 COR.sub.3, --NR.sub.2 CONR.sub.3 R.sub.4, --NR.sub.2 SO.sub.2 R.sub.3, --NR.sub.2 SO.sub.2 NR.sub.3 R.sub.4, or --NR.sub.2 COOR.sub.5, wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be the same or different and may be hydrogen, alkyl, alkoxyalkyl, alkoxyaryl, cycloalkyl, alkenyl, alkynyl, aryl, heteroaryl, or aralkyl, except that R.sub.3 and R.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: February 14, 1989
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul W. Erhardt, William L. Matier
  • Patent number: 4804557
    Abstract: A thickness control system for controlling the thickness of an extrudate includes a host computer for controlling the temperature of a heat responsive element based upon a predetermined temperature set point. A back-up duty cycle controller is provided for control in the event of host failure.
    Type: Grant
    Filed: August 30, 1984
    Date of Patent: February 14, 1989
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: John D. Anthony, Jr., Kenneth W. Leffew
  • Patent number: 4804154
    Abstract: A passive load mitigation system for supporting transducers on a body moving through a fluid stream is described. According to the invention, a streamlined aerodynamic surface for supporting the transducers is attached to the body via a pivot axis. The axis supports the surface in a torsionally unrestrained manner in at least one rotational degree of freedom about the pivot axis. Therefore, as the body moves through the fluid stream, the surface remains substantially parallel to the plane of the stream. Aerodynamic stability is ensured by forming the surface with substantially trapezoidal or parallelogram shaped sidewalls and by mounting the surface on the pivot axis such that the surface's aerodynamic center is located downstream of the pivot axis. Flutter is prevented or substantially reduced by increasing the surface's bending stiffness or by incorporating ballast weights on a tip pod attached to a portion of the surface.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: February 14, 1989
    Assignee: E-Systems, Inc.
    Inventor: James M. Davis
  • Patent number: 4804770
    Abstract: A process is provided for preparing the keto-phosphonate ##STR1## in enantiomerically homogeneous form, by reacting the anhydride ##STR2## with S-.alpha.-methylbenzylamine to effect diastereoselective opening of the anhydride to give a mixture of amides ##STR3## separating the amides, for example, by frictional crystallization, and converting the desired amide IVA (which is obtained in high yield from the anhydride) to enantiomerically homogeneous ketophosphonate in high yield and on a large scale.The so-formed ketophosphonate is useful in the synthesis of compactin as well as 7-substituted-(3,5-dihydroxy)-hept-6-enoic and -heptanoic acid HMG-CoA reductase inhibitors.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: February 14, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Donald S. Karanewsky
  • Patent number: 4804716
    Abstract: Polyoxymethylene compositions having 15-40 wt. % thermoplastic polyurethane, where the polyurethane has a glass transition of lower than -15.degree. C., the polyoxymethylene has a molecular weight of 20,000-100,000, and the polyurethane is dispersed in the polyoxymethylene as small particles show extraordinary toughness as measured by notched Izod.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edmund A. Flexman, Jr.
  • Patent number: 4804480
    Abstract: The present invention relates to a process for destroying polynitrophenols or their salts in an aqueous waste by treating with at least two moles of hydrogen peroxide per mole of polynitrophenol in the presence of from 0.002 to 0.7 moles of an iron salt per mole of polynitrophenol. The destruction takes place at a pH lower than 4 and a temperature greater than 65.degree. C.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Madhusudan D. Jayawant