Patents Assigned to Akzo
  • Patent number: 6770275
    Abstract: The present invention relates to live attenuated RTX-toxin producing bacteria of the family Pasteurellaceae, of which the attenuation is due to the fact that they produce RTX toxin in a non-activated form. The invention also relates to vaccines for the protection of mammals against infection with RTX-toxin producing bacteria of the family Pasteurellaceae, and to methods for the preparation of said live attenuated bacteria and vaccines.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: August 3, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Ruud Philip Antoon Maria Segers, Johannes Franciscus Van Den Bosch, Joachim Frey
  • Patent number: 6770608
    Abstract: The present invention generally relates to a textile softening composition which comprises, as the softening agent, a quaternary ammonium salt which comprises a mixture of mono-, di- and tri-ester components, wherein the amount of diester quaternary is greater than about 50% by weight, and the amount of triester quaternary is less than about 25% by weight based on the total amount of quaternary ammonium salt. The invention also relates to a softening agent which comprises a high diester quaternary ammonium salt mixture comprising mono- and diester components derived for ether dialkanolamines. The invention also relates to processes for preparing said softening agents, and methods of use as a fabric softener and as a hair and skin conditioner.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: August 3, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Ralph Franklin, Robert Mendello, Paul Albert Iacobucci, Dale Steichen, Phuong-Nga Trinh
  • Patent number: 6768814
    Abstract: The invention is a method of determining a color formula for matching a selected color, such that an electronic imaging device is calibrated , and at the same time or in a next step the selected color is measured with the aid of the electronic imaging device, then the measured color signals of the calibration colors are converted to the known calorimetric data and then the color signals of the measured selected color are converted to colorimetric data; and next, the color formula is determined that most closely matches the calculated colorimetric data of the measured selected color. The invention also determines a color formula for matching a selected color of textured materials; determines the color difference of a selected color compared to a standard color sample; and measures a specific attribute of the color appearance, the so-called texture.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: July 27, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Daniel Spitzer, Marcel Petrus Lucassen
  • Patent number: 6764687
    Abstract: The present invention relates to live attenuated bacteria for use as a medicament. The invention also relates to vaccines based thereon that are useful for the prevention of microbial pathogenesis. Further, the invention relates to live attenuated recombinant bacteria carrying a heterologous gene and vaccines based thereon. Finally, the invention relates to methods for the preparation of such vaccines and bacteria.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: July 20, 2004
    Assignees: Akzo Nobel N.V., Board of Governors for Higher Education, State of Rhode Island
    Inventors: Paul S. Cohen, David C. Laux, Petrus J. M. Nuijten
  • Patent number: 6764543
    Abstract: The invention concerns silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation lower than about 15% by numbers. The invention also concerns a method for preparing a silica sol mixture and use thereof. The invention further concerns a concrete composition comprising a silica sol mixture and a method for preparing such composition.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: July 20, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Bergqvist, Ulf Skarp
  • Patent number: 6765056
    Abstract: The aqueous-based cross-linkable binder composition comprising (A) an aqueous dispersion of an aldehyde-functional polyurethane having a number average molecular weight of more than 1,000 and an average aldehyde functionality of ≧2, which polyurethane comprises ionic and/or non-ionic dispersing groups, and (B) a low-molecular weight aldehyde-reactive cross-linker selected from the group of low-molecular weight polyamines and low-molecular weight compounds comprising at least one group of one of the formulae E1—CHR1—E2 and H—C—(E1E2E3), wherein —E1, —E2 and —E3 are independently chosen from electron-withdrawing groups such as —P(═O)—O—, —CO—, —CN, —SO2—, —NO2 and wherein R1 has the meaning of hydrogen or a hydrocarbon radical having 1 to 10 carbon atoms.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: July 20, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Klaus Hobel, Josephus Christiaan Van Oorschot, Keimpe Jan Van Den Berg
  • Patent number: 6764603
    Abstract: A method for the extraction of hydrophobic constituents, such as benzene, toluene, xylene and/or chlorinated hydrocarbons, from an aqueous solution, involving the steps of contacting said solution with a porous, preferably dimensionally stable granular or powdery material, of which the pores have a size of from 0.1 to 50 &mgr;m and contain a hydrophobic substance with affinity for the hydrophobic constituents to be extracted, which granular or powdery material has a particle size of from 0.1 to 10 mm, and is wetted more readily by the hydrophobic substance immobilized in the pores than by the aqueous solution to be treated, and regenerating the product of step a), essentially without the granular or powdery material being freed from the hydrophobic substance, by removal of the hydrophobic constituents.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: July 20, 2004
    Assignee: Akzo Nobel NV
    Inventors: Frederik Albert Buijtenhuijs, Johanne Josef Pragt, Elwin Schomaker
  • Publication number: 20040138331
    Abstract: The invention relates to a polymer comprising quaternary ammonium and/or quaternary phosphonium groups bound to the backbone of the polymer, said quaternary ammonium groups and/or quaternary phosphonium groups being neutralised by counter-ions, wherein the counter-ions consist of the anionic residue of an acid having an aliphatic, aromatic, or alkaryl hydrocarbon group comprising 6 or more carbon atoms. The invention further relates to the preparation of this polymer, its use in anti-fouling compositions, and to anti-fouling compositions comprising the polymer.
    Type: Application
    Filed: July 22, 2003
    Publication date: July 15, 2004
    Applicant: AKZO NOBEL N.V.
    Inventors: Robert Lines, Clayton Price
  • Patent number: 6761907
    Abstract: Dosage units, such as tablet cores and granules, containing a composition comprising a steroid having two hydrogen atoms at position 3 of the steroid skeleton, are coated. While a conventional sugar coating process involves the application of several layers including, as a surface layer, a sugar coat, it was found that a seal coat such as normally used in a sugar coating process can be used as the surface layer for the purpose of preventing the transfer of the steroid out of the composition. From this novel use of a seal coat, novel dosage units result. The process is advantageous, as it requires fewer steps than before.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: July 13, 2004
    Assignee: Akzo Nobel NV
    Inventor: Gertjan Pieter Hartholt
  • Patent number: 6759092
    Abstract: A method of providing a paint coat of an organic polymeric paint composition on a surface of a moving substrate is provided, which includes establishing a quantity of the paint composition, in a high solids form at a temperature such that it is spreadable, in a hip defined by the substrate surface and a smoothing roll to enable paint from the established quantity to pass through the nip as a paint layer on the substrate surface, wherein the smoothing roll has a surface roughness coefficient (Ra) of no more than 1.5, and wherein the maximum surface speed of the smoothing roll expressed as a percentage of the substrate speed bears a linear relationship to the substrate speed such that the surface speed of the smoothing roll is no more than 1.2 percent of the substrate speed at an exemplary low substrate speed of 15 meters per minute and no more than 12 percent of the substrate speed at an exemplary substrate speed of 150 meters per minute.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 6, 2004
    Assignees: BHP Steel (JLA) Pty Ltd., Akzo Nobel PTY LTD
    Inventor: Udo Wolfgang Buecher
  • Publication number: 20040124094
    Abstract: The invention relates to a process for producing alkali metal chlorate in an electrolytic cell that is divided by a cation selective separator into an anode compartment in which an anode is arranged and a cathode compartment in which a gas diffusion electrode is arranged. The process comprises introducing an electrolyte solution containing alkali metal chloride into the anode compartment and an oxygen-containing gas into the cathode compartment.
    Type: Application
    Filed: June 30, 2003
    Publication date: July 1, 2004
    Applicant: AKZO NOBEL N.V.
    Inventors: Hakansson Bo, Fontes Eduardo, Herlitz Fredrik, Lindstrand Viktoria
  • Publication number: 20040127608
    Abstract: The invention relates to a process wherein one or more polyamines, each with one or more —NH2 functions and one or more second amine functions, said second amine functions having a lower lactone reactivity than said —NH2 functions, is reacted in a first step with one or more lactones, hydroxyacids, cyclic carbonates, or mixtures thereof, to form a polyamine-derived compound with amide and/or urethane groups, which polyamine-derived compound is reacted in a second step with one or more at least bifunctional amine-specific reagents to form an intermediate optionally comprising ester and/or carbonate groups, wherein in the second step optionally an additional amine modifier is co-reacted and in the intermediate at least two polyamine residues, or if a modifier is co-reacted, at least one polyamine residue and at least one optional amine modifier residue, are linked by said bifunctional amine-specific reagent.
    Type: Application
    Filed: October 20, 2003
    Publication date: July 1, 2004
    Applicant: AKZO NOBEL N.V.
    Inventors: Johannes A. Pardoen, Richard H. Brinkhuis, Rudolf A. Venderbosch
  • Patent number: 6756366
    Abstract: Orally Active androgens are derivative of 7&agr;-methyl-19-nortestosterone. The compounds satisfy formula (I) wherein R1 is O, (H,H), (H,OR), NOR, with R being hydrogen, (C1-6)alkyl, or (C1-6)acyl; R2 is selected from the group consisting of (C2-3)alkyl, isopropyl, (C2-3)1-alkenyl, isopropenyl, 1,2-proandienyl, or (C2-3)1-alynyl, each optionally substituted by halogen; or R2 is cyclopropyl, or cyclopropenyl, each optionally substituted by (C1-2)alkyl, or halogen; R3 is hydrogen, (C1-2)alkyl, or ethenyl; R4 is (C1-2)alkyl; R5 is hydrogen, or (C1-15)acyl; and the dotted lines indicate optional bonds.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: June 29, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Jaap van der Louw, Dirk Leysen, Roberta Burma Bursi
  • Patent number: 6755971
    Abstract: A process for the removal of undesirable bromine salts from fluid streams, especially waste and/or drinking water, comprising the step of exposing the fluid stream to a micro-organism which biochemically aids the reduction of the undesirable bromine salts, characterized in that the microorganisms belong to the group of pure and/or enrichment strains of bacteria grown on one or more of the following: perchlorate, chlorate, and bromate, or belong to bromate respiring bacteria.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: June 29, 2004
    Assignee: AKZO Nobel N.V.
    Inventors: Alexander Gerardus Maria Kroon, Cornelis Gijsbertus Van Ginkel
  • Patent number: 6756435
    Abstract: The invention relates to a silica-filled, sulfur-vulcanizable rubber composition comprising an unsaturated rubber, 20 to 100 phr of a silica, 1.6 to 8 phr of a silica coupling agent, 0.05 to 5 phr of an antidegradant, 0.1 to 5 phr of a vulcanization accelerator, 0.1 to 10 phr of sulfur, and 0.5 to 5 phr of a quinone diimine, with the proviso that the antidegradant is not a quinone diimine. The invention also relates to a vulcanization process comprising mixing and heating said rubber composition and to rubber articles, such as pneumatic tires, comprising the rubber vulcanizate obtained by said process.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: June 29, 2004
    Assignee: Akzo Nobel NV
    Inventors: Rabindra Nath Datta, Nicolaas Maria Huntink, Auke Gerardus Talma
  • Patent number: 6756375
    Abstract: The invention provides for a non-steroidal compound having the formula wherein Re and ′Re are OH, optionally independently etherified or esterified; Z is —CH2— or —CH2CH2—; R1 is H, halogen, CF3, or (1C-4C)alkyl; R2, R3 and R4 are independently H, halogen, —CF3, —OCF3, (1C-8C)Alkyl, hydroxy, (1C-8C)alkyloxy, aryloxy, aryl(1C-8C)alkyl, halo(1C-8C)alkyl, —O(CH2)mX, wherein X is halogen or phenyl and m=2-4; —O(CH2)mNRaRb, —S(CH2)mNRaRb or —(CH2)mNRaRb, wherein m=2-4 and Ra, Rb are independently (1C-8C)alkyl, (2C-8C)alkenyl, (2C-8C)alkynyl, or aryl, optionally substituted with halogen, —CF3, —OCF3, —CN, —NO2, —OH, (1C-8C)alkoxy, aryloxy, carboxyl, (1C-8C)alkylthio, carboxylate, (1C-8C)alkyl, aryl, aryl(1C-8C)alkyl, halo(1C-8C)alkyl or Ra and Rb form a 3-8 membered ring structure, optionally substituted with halogen, —CF3, —OCF3, —CN, —NO2, hydroxy, hydroxy(1C-4C)a
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: June 29, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Gerrit Herman Veeneman, Hubert JanJozef Loozen, Jordi Mestres, Eduard Willem De Zwart
  • Patent number: 6756029
    Abstract: A process for preparing molecular sieves of type Y faujasite structure is described, as well as pre-shaped bodies of faujasite structure type Y molecular sieves. The process comprises preparing a precursor gel from a source of silica-alumina or a source of alumina and a source of silica with a template agent at a SiO2/Al2O3 greater than 7 and suitable for forming a type Y zeolite, drying the precursor gel and contacting the dried precursor gel with steam, optionally followed by caustic washing, without the formation of crystalline phases other than type Y zeolite being observed. Advantageously, the pre-shaped bodies prepared with the precursor gel of Y zeolite, when subjected to the process of the invention, will have their outer surface covered by type Y zeolite crystals. The molecular sieves so obtained may be employed as catalysts or adsorbents in various processes of the chemical or oil industry.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: June 29, 2004
    Assignees: Petroleo Brasileiro S.A.-Petrobras, Akzo Nobel N.V.
    Inventors: Yiu Lau Lam, Alvaro Saavedra, Alexandre de Figueiredo Costa, Anselmo da Silva Santos, Gustavo Torres Moure, Rodolfo Eugenio Roncolatto, Dennis Stamires, Paul O'Connor
  • Publication number: 20040122203
    Abstract: The invention pertains to a coating composition comprising a compound comprising at least one spiro-ortho silicate group and a hydroxyl-reactive cross-linker, to a process for curing the composition, and to the use of the composition. The coating composition of the current invention can be formulated to a coating composition having a low content of volatile organic solvents, is curable at a temperature as low as 5° C., and the cured coating composition of the current invention is essentially free of unreacted low-molecular weight blocking agents. Further, the pot life: drying time ratio of coating compositions according to the invention is particularly favourable.
    Type: Application
    Filed: September 29, 2003
    Publication date: June 24, 2004
    Applicant: AKZO NOBEL N.V.
    Inventors: Keimpe Jan Van Den Berg, Klaus Hobel, Josephus Christiaan Van Oorschot, Jan Cornelis Van Beelen, Huig Klinkenberg
  • Patent number: 6752904
    Abstract: The present invention relates to a process for the removal of lignin from lignocellulose containing material comprising treating the lignocellulose containing material prior to a high-yield pulping process with a delignifying gas comprising gaseous compounds comprising at least one oxygen atom such as chlorine dioxide containing gas.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 22, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Patrick S. Bryant, John C. Sokol, Dwane S. Hutto
  • Patent number: 6753386
    Abstract: The present invention relates to a film forming composition, a method of forming the composition, and application of the composition to coating formulations which provide a cured coating having acid rain resistance. A film-forming polyurethane polyol composition comprises a reaction product of an n-functional isocyanate (wherein n is a number ranging from about 2 to about 5) with at least one diol or triol or mixtures thereof and a compound containing isocyanate-reactive functional groups, preferably a monofunctional alcohol or thiol. The low viscosity polyurethane polyol of the present invention is typically crosslinked/cured using a melamine to produce a cured coating which is highly acid etch resistant as well as having other desirable physical-mechanical properties. The coating compositions have improved flow characteristics compared to compositions containing polyurethane polyols prepared without the monofunctional alcohols or thiols.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: June 22, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Alexander Leo Yahkind, Ian Wagstaff, Frederick Herbert Walker