Patents Assigned to Akzo N.V.
  • Patent number: 6288005
    Abstract: A catalyst component, adapted for use in the polymerization and copolymerization of ethylene, is formed by reaction of an organomagnesium compound with a metal oxide support to form a supported organomagnesium composition, reaction of the supported organomagnesium composition and a tetraalkyl silicate, contact of the resulting product with a chlorinating reagent, and treatment of the product from the previous step with liquid titanium halide.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: September 11, 2001
    Assignee: Akzo N.V.
    Inventors: Bor-Ping E. Wang, Elliot I. Band, Ronald A. Epstein
  • Patent number: 6013115
    Abstract: Engine deposits are reduced by adding an effective deposit-controlling amount of esteramine to hydrocarbon fuel.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: January 11, 2000
    Assignee: Akzo N.V.
    Inventors: Michael D. Kanakia, Ralph Franklin, Dale Steichen, James F. Gadberry
  • Patent number: 5618479
    Abstract: In a yarn composed of core-sheath filaments with or without further monocomponent filaments, the core and the sheath of the core-sheath filaments are produced by extruding spinnable polymers, with at least almost all the core-sheath filaments having a complete sheath. Of all the core-sheath filaments in the yarn, the proportion of core-sheath filaments P, in %, of which each core-sheath filament has (S.+-.0.1 S) % of sheath content (based on the total volume of the particular core-sheath filament), meets the following conditions: P.ltoreq.100, S.gtoreq.0.5, and P.gtoreq.30+(0.1 S).sup.8 %. This yarn can be produced by a process wherein the core component is fed via a first spinneret plate to a second spinneret plate in a plurality of individual streams, and between the first and second spinneret plate each individual stream of core component is enveloped by the sheath component being fed onto it, and the two components are conjointly spun, drawn and wound up.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 8, 1997
    Assignee: Akzo N.V.
    Inventors: Franciscus A. T. Lijten, Johannes J. Meerman
  • Patent number: 5612063
    Abstract: An apparatus for melt spinning multifilament yarns from fiber-forming polymers at wind-up speeds of at least 2,000 m/min, includes a spinnerette, a porous tube for solidifying the filaments, a convergence element for the filaments and a wind-up device. The apparatus further includes, at least between the spinnerette and the convergence element, an essentially vertical spinline. The porous tube is open in the spinning direction and concentric relative to the spinline.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: March 18, 1997
    Assignee: Akzo N.V.
    Inventors: Diederich Schilo, Wolfgang Peschke
  • Patent number: 5581856
    Abstract: Uncoated technical fabric is produced in a dense weave with low air permeability. The fabric contains polyamide filament yarns with a hot air shrinkage of 6 to 15% (determined at 160.degree. C.) and has an at least substantially symmetrical fabric construction. The fabric is adjusted to the required air permeability by a treatment in an aqueous bath at 60.degree. to 140.degree. C.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: December 10, 1996
    Assignee: Akzo N.V.
    Inventors: Wolf Krummheuer, Hans A. Graefe, Volker Siejak
  • Patent number: 5578289
    Abstract: A method for in-vivo targeting a functional moiety in a patient by administering a targeting moiety coupled to an affinity component, wherein the targeting moiety has affinity for binding sites in a target area, and administering a binding partner to the affinity component coupled to a functional moiety to localize the functional moiety in the target area. Preferably the targeting moiety is an antibody and the functional moiety is a radiometal when performing in vivo imaging or therapy. The affinity component may be a novel methotrexate analog.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: November 26, 1996
    Assignee: Akzo N.V.
    Inventors: Nicholas Pomato, Richard P. McCabe, Gregory A. Hawkins, Reinhard Bredehorst, Chong-Ho Kim, Carl-Wilhelm E. Vogel
  • Patent number: 5518895
    Abstract: A device and method for detecting microorganisms in a specimen by culturing the specimen in a sealable specimen container with a culture medium and detecting microorganisms in the specimen-by measuring changes in pressure within the container caused by their metabolic activity during culturing. Pressure changes are measured using a sensor having a deformable section in communication with the container and a piezoelectric apparatus, such that the piezoelectric apparatus is deformed by changes in pressure within the specimen container and an electrical signal is produced by the deformation. The electrical signal is processed to detect any change in the rate of change of pressure, and thus detect the growth of microorganisms.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: May 21, 1996
    Assignee: AKZO N.V.
    Inventors: Thurman C. Thorpe, James L. DiGuiseppi, James E. Turner
  • Patent number: 5514457
    Abstract: Textile structures, such as fabrics, knits, warp-knitted fabrics, stitch-bonded fabrics, thread structures, etc. for use in clothing which protects against stabbing, cutting, fragments and bullets, are produced from wrapped yarns. These yarns have a core of penetration resistant fibers and an outer sheath of natural and/or manmade fibers that can easily be dyed, printed, or optically brightened.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: May 7, 1996
    Assignee: Akzo N.V.
    Inventors: Achim G. Fels, Georg K. Brustmann, Dieter H. P. Schuster
  • Patent number: 5505890
    Abstract: A dialysis membrane in the form of a hollow fiber with a continuous internal cavity is made of cellulose acetate or a cellulose acetate derivative. The membrane has a maximum screen coefficient of 0.04 for albumin with a molecular weight of 68,000. A dialysis membrane in the form of a hollow fiber with a continuous internal cavity may be made in a process using a spinning solution containing an organic carboxylic acid and a cavity-forming liquid. Modification agents and/or water are optionally added and the solution is extruded through a spinneret suitable for the manufacture of hollow fibers. The precipitation of the resultant dialysis membrane and the usual further aftertreatment take place in a precipitation bath. The organic carboxylic acid preferably is acetic acid and the precipitation bath preferably is a dilute acetic acid.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: April 9, 1996
    Assignee: Akzo N.V.
    Inventors: Gustav Duweg, Lothar Steinfeld, Wolfgang Ansorge
  • Patent number: 5496557
    Abstract: An article for the controlled delivery of an active substance, comprising a hollow space fully enclosed by a wall and filled in full or in part with one or more active substances, which wall is made using a biodegradable polymeric material permeable to the active substance, wherein the wall is composed mainly of a combination of at least two different polymeric materials in which one polymeric material is permeable to the active substance and is degradable and the other polymeric material is relatively poorly permeable to the active substance and is degradable and the conveyor path for the delivery of the active substance from the hollow space to the surroundings of the article is a continuous distance leading at least through the polymeric material permeable to the active substance.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: March 5, 1996
    Assignee: Akzo N.V.
    Inventors: Jan Feijen, Hilbert Esselbrugge
  • Patent number: 5495002
    Abstract: This invention relates to transformed B-cell lines derived from peripheral blood B-cells of cancer patients actively immunized with autologous tumor antigen and the monoclonal antibodies they produce. These monoclonal antibodies can be used in both diagnostic procedures and therapy for human cancers.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: February 27, 1996
    Assignee: Akzo N.V.
    Inventors: Barry J. Kobrin, Martin V. Haspel
  • Patent number: 5493922
    Abstract: A method and apparatus for a liquid level sensor control circuit of a bioassay apparatus for controlling a position of a sampling probe with respect to a surface of a liquid in a container. The apparatus includes a sampling probe, an oscillator circuit coupled to the sampling probe for producing a first output signal having a constant frequency, a comparator coupled to the oscillator circuit for comparing the amplitude of the first output signal to a first reference amplitude and for producing a change signal when the amplitude of the first output signal changes with respect to the reference amplitude, and a controller responsive to the change signal for controlling the position of the sampling probe with respect to the surface of the liquid.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: February 27, 1996
    Assignee: Akzo N.V.
    Inventors: B. Edward Ramey, Mario Moreno
  • Patent number: 5484596
    Abstract: This invention relates to a method of cancer therapy for treating human patients with resectable solid tumors to inhibit recurrence and formation of metastases, comprising surgically removing tumor tissue from a human cancer patient, treating the tumor tissue to obtain tumor cells, irradiating the tumor cells to be viable but non-tumorigenic, preparing a vaccine comprising about 10.sup.7 viable but non-tumorigenic tumor cells per dose and injecting the vaccine intradermally into the human patient after the patient's immune system has recovered from surgery.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: January 16, 1996
    Assignee: Akzo N.V.
    Inventors: Michael G. Hanna, Jr., Herbert C. Hoover, Jr., Leona C. Peters
  • Patent number: 5472434
    Abstract: A device for use in securing a venting pin or infusion spike to a delivery container such as a vial or bottle particularly when instilling a medicinal fluid to a patient through an intravenous set, catheter or similar fluid delivery set.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: December 5, 1995
    Assignee: Akzo N.V.
    Inventor: Robert J. Lechleiter
  • Patent number: 5468555
    Abstract: In a yarn composed of core-sheath filaments with or without further monocomponent filaments, the core and the sheath of the core-sheath filaments are produced by extruding spinnable polymers, with at least almost all the core-sheath filaments having a complete sheath. Of all the core-sheath filaments in the yarn, the proportion of core-sheath filaments P, in %, of which each core-sheath filament has (S.+-.0.1 S) % of sheath content (based on the total volume of the particular core-sheath filament), meets the following conditions: P.ltoreq.100, S.gtoreq.0.5, and P.gtoreq.30+(0.1 S).sup.8 %. This yarn can be produced by a process wherein the core component is fed via a first spinneret plate to a second spinneret plate in a plurality of individual streams, and between the first and second spinneret plate each individual stream of core component is enveloped by the sheath component being fed onto it, and the two components are conjointly spun, drawn and wound up.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: November 21, 1995
    Assignee: Akzo N.V.
    Inventors: Franciscus A. T. Lijten, Johannes J. Meerman
  • Patent number: 5464621
    Abstract: A live or inactivated canine corona virus vaccine is provided which is derived from a virus of the novel antigenic type of the canine corona virus strain I-743 (CNCM, Institut Pasteur, Paris). A method for the preparation of this vaccine and the use of said vaccine in protecting susceptible animals against canine corona virus injection are also disclosed.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: November 7, 1995
    Assignee: Akzo N.V.
    Inventors: William Baxendale, William S. K. Chalmers
  • Patent number: 5462959
    Abstract: The invention concerns a 4-aryl-imidazole derivative having the formula I ##STR1## wherein X is 0 or NOH,Y is NR.sub.3,Ar is a group selected from phenyl, naphthyl, tetrahydronaphthyl, and biphenyl,R is one to four substituents independently selected from hydrogen, hydroxy, lower alkyl, lower alkoxy, lower thioalkyl, cycloalkyl, halogen, CF.sub.3, NO.sub.2, and O--ALK--NR.sub.1 R.sub.2, in which ALK is a saturated aliphatic hydrocarbon group having 2-6 carbon atoms, and R.sub.1 and R.sub.2 are independently hydrogen or lower alkyl, or form, together with the nitrogen atom to which they are bonded, a heterocyclic ring, andR.sub.3 is hydrogen or a lower alkyl; or a pharmaceutically acceptable salt thereof, with the proviso that 4-(4-chlorophenyl)-thiazole-2-carboxamide is excluded.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: October 31, 1995
    Assignee: Akzo N.V.
    Inventors: John H. Pick, Robert T. Logan
  • Patent number: 5451373
    Abstract: An apparatus for detecting obstructions of a flow line. A detector housing is provided having a cavity therein. The detector housing has first and second openings into the cavity. The flow line is attached to the detector housing establishing a flow path through the first opening, the cavity, and the second opening, respectively. A pressure detector detects changes in pressure within the cavity, indicating the presence of an obstruction.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: September 19, 1995
    Assignee: AKZO N.V.
    Inventors: Gregory D. Lewis, Dean L. Keiter, Mario Moreno
  • Patent number: 5449765
    Abstract: The present invention is concerned with a pseudorabies virus (PRV) vaccine comprising a polypeptide of the PRV glycoprotein gII or a fragment thereof which was shown to be the site of interaction of PRV neutralizing antibodies. Vector vaccines capable to express a polynucleotide fragment coding for such a polypeptide also form part of the present invention.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: September 12, 1995
    Assignee: Akzo N.V.
    Inventors: Christa S. Schreurs, Thomas C. Mettenleiter, Artur J. Simon, Noemi Lukacs, Hanns J. Rziha
  • Patent number: RE35406
    Abstract: A cracking catalyst composition comprising a zeolitic, crystalline aluminosilicate, a matrix material and a barium titanium oxide. The catalyst composition is particularly suitable for cracking metal-containing hydrocarbon feedstocks.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: December 17, 1996
    Assignee: Akzo N.V.
    Inventor: Cornelis J. Groenenboom