Patents Assigned to Akzo
  • 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
  • Publication number: 20040116558
    Abstract: The present invention pertains to carbamate-melamine formaldehyde cross-linking agents of the formula 1
    Type: Application
    Filed: November 3, 2003
    Publication date: June 17, 2004
    Applicant: AKZO NOBEL N.V.
    Inventors: Jan Andre Jozef Schutyser, Aaldert Johannes De Jong
  • Patent number: 6750300
    Abstract: Hot melt coating composition, particularly suitable for low viscosity requiring application techniques, the composition having a Tg below 5° C., preferably below −20° C., and a viscosity below 2,000 mPa.s, preferably below 600 mPa.s, measured at 70° C. at a shear rate of 10 s−1. The composition includes at least one amorphous binder having a Tg below 5° C., preferably below −20° C., and/or at least one crystalline or semi-crystalline binder having a melting point or melting range below 150° C. The composition can be a one component system comprising an epoxy-functional resin, a polyamine having cyanamide groups, preferably dicyandiamide, and a blocked catalyst which is unblocked at an elevated temperature below the curing temperature. Alternatively, the composition may be one component of a two-component system based on isocyanate/polyol crosslinking.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: June 15, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Philip Mahieu, Faridoon Qazi, Didier Vanderveken, Kent Raabjerg Sörensen, Martinus Adrianus Anthonius Maria Koenraadt
  • Patent number: 6749949
    Abstract: A method of producing formaldehyde laden layered products, the products having reduced emission of formaldehyde, of at least 2 layers, at least one of the layers being a board or veneer, comprising a step of treating at least one of the surfaces of said board or veneer, prior to bonding the layers together, with a solution comprising an inorganic sulphur containing salt. The invention also relates to a flooring material obtained by the method.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: June 15, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Robin Ljungar, Ingvar Lindh, Salme Pirhonen
  • Patent number: 6747164
    Abstract: The present invention relates to the use of an amino compound, which is an esteramine or an amidoamine surfactant with improved biodegradability, as an adjuvant for agrochemically active compounds such as pesticides or fertilizers. The adjuvant has Formula (I) where R1 is an aliphatic group containing 7-22 carbon atoms; EO is an ethyleneoxy group; Y is 0 or NH; R2 and R3 is independently CH2CH2OH or an alkyl group with 1-5 carbon atoms, preferably 1-3 carbon atoms; n is a number between 0-10; x is a number 0-1 provided that when Y is O, then x is 1, and when Y is NH, then x is O; and m is a number 2-6, preferably 2-3, provided that when Y is NH, then m is 3-6, preferably 3; or an adduct obtained by reacting one mole of the compound with 1-5 moles of an alkylene oxide having 2-3 carbon atoms.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: June 8, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Bodil Gustavsson, Burkhard Weuste
  • Publication number: 20040097600
    Abstract: The invention relates to a method of producing an aqueous dispersion comprising mixing at least one silane compound and colloidal silica particles to form silanized colloidal silica particles, mixing said silanized colloidal silica particles with an organic binder to form the dispersion. The invention also relates to a dispersion obtainable by the method, and the use thereof.
    Type: Application
    Filed: October 14, 2003
    Publication date: May 20, 2004
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Publication number: 20040091716
    Abstract: The invention relates to a multilayer coating system comprising
    Type: Application
    Filed: August 1, 2003
    Publication date: May 13, 2004
    Applicant: AKZO NOBEL N.V.
    Inventors: Keimpe Jan Van Den Berg, Edith Hulsbos, Frederik Rous, Hendrik Meijer, Judith Johanna Maria Adriana Werkman-Loenen
  • Patent number: 6733639
    Abstract: The invention relates to a gas diffusion electrode (1) comprising a hydrophobic gas diffusion layer (3b), a reaction layer (3a), and a hydrophilic layer (5) arranged in the mentioned order wherein the reaction layer (3a) is arranged to a barrier layer (4), which barrier layer (4), on its opposite side, is arranged to the hydrophilic layer (5). The invention also relates to a method for manufacturing such a gas diffusion electrode (1), and to an electrolytic cell, and use thereof.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: May 11, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Bernd Busse, Lars-Erik Bergman
  • Patent number: 6734275
    Abstract: The present invention relates to a method of gluing wood based materials by providing an adhesive system onto wood based materials followed by curing, the adhesive system comprises a urea based amino resin and a hardener composition, wherein the hardener composition comprises an acid and a phenolic resin. The invention also relates to an adhesive system and a hardener composition as well as wood based products obtained by the method or through the use of the adhesive system.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: May 11, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Salme Pirhonen, Benyahia Nasli-Bakir, Ingvar Lindh
  • Patent number: 6730740
    Abstract: The invention pertains to an aqueous cross-linkable polymer composition comprising: W a) a water-soluble first polymer comprising acid groups, which is at least partially neutralized with a volatile base; b) a dispersion of a substantially water-insoluble second polymer, which comprises carbonyl-functional groups, which may be produced by emulsion polymerization in the presence of an aqueous solution of the first polymer; c) a cross-linking agent which can react by condensation with the carbonyl-functional groups of the second polymer; and d) a water-soluble, amine-functional third polymer.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: May 4, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Dirk Emiel Paula Mestach, Maarten Johannes Jacobus Weber, Genevieve Delaunoit, Wincenty Lambertus Stanislaw Pilaszek
  • Patent number: 6727078
    Abstract: Disclosed herein is a vaccine which provides immunity to mammals from infection and/or disease caused by a lentivirus, such as equine infectious anemia virus, human immunodeficiency virus (HIV), feline immunodeficiency virus (FIV), bovine immunodeficiency virus (BIV) or simian immunodeficiency virus (SIV) said composition comprising a deletion in a gene that blocks replication of the virus in vivo. Preferably said composition encompasses at least one deletion in a lentivirus which provides protection from exposure to wild-type lentiviruses. It also encompasses a marker vaccine in which a foreign gene is inserted into the gene-deleted region, said inserted gene providing a diagnostic tool for use in vaccinated mammals. The scope of the invention encompasses an EIAV vaccine that allows equines to be safely vaccinated and protected from disease without converting to a seropositive status on the Coggin's Test or any other test wich measures p26.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: April 27, 2004
    Assignees: Akzo Nobel N.V., University of Pittsburgh of the Commonwealth System of Higher Education
    Inventors: Ronald Montelaro, Jodi Craigo, Charles Issel, Bridget Puffer, Kristina J. Hennessey, Karen K. Brown
  • Publication number: 20040077768
    Abstract: The invention relates to a method of producing a stable substantially aqueous silanized colloidal silica dispersion having a silica content of at least about 20 wt %, comprising mixing at least one silane compound and colloidal silica particles, wherein the weight ratio of silane to silica is from about 0.003 to about 0.2. The invention also relates to a dispersion obtainable by the method, and to a stable substantially aqueous silanized colloidal silica dispersion having a silica content of at least about 20 wt %, wherein the weight ratio of silane to silica is from about 0.003 to about 0.2. The invention further concerns the use of the dispersion for coatings applications and as an additive.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 22, 2004
    Applicant: AKZO NOBEL N.V..
    Inventor: Peter Greenwood
  • Patent number: 6723324
    Abstract: The present invention provides a new antigenic type of chicken anaemia viruses (CAV). The CAV according to this invention is isolatable from turkeys in the field and its virulence for chickens is significantly reduced. This property makes these viruses particularly suited for preparing a live vaccine for protecting poultry against disease conditions resulting from CAV infection.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: April 20, 2004
    Assignee: Akzo Nobel NV
    Inventors: Carla Christina Schrier, Henricus Johannes Maria Jagt
  • Patent number: 6723862
    Abstract: The present invention generally relates to a process for the preparation of branched fatty acids from straight chain unsaturated fatty acid feedstocks with a strongly acidic and hydrothermally stable mesoporous aluminosilicate and/or aluminophosphate catalyst materials having mesopores of 15-500 Å and contain primary and secondary nanosized zeolite structural units in the walls that separate mesopores.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: April 20, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Zhang Shuguang, Zhang Zongchao
  • Patent number: 6719981
    Abstract: The present invention relates to recombinant rabies virus mutants comprising a mutation in the viral genome, whereby said mutation comprises at least a substitution of the Arg333 codon in the gene encoding the G protein with a codon that differs by three nucleotides from said Arg333 codon. These rabies virus mutants have a glycoprotein G that comprises an amino acid at position 333 which is encoded by a codon that differs by all three nucleotides from the Arg codon in amino acid position 333 in the glycoprotein of the parental virus. Said recombinant rabies virus mutants are stable and non-pathogenic in immune competent animals and are suitable for use in a live, attenuated anti-rabis vaccine.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: April 13, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Teshome T Mebatsion, Karl Klaus Conzelmann
  • Patent number: 6720398
    Abstract: The invention relates to a polymerization process wherein at least one initiator is selected from trioxepan compounds of formula I with R1-3 being independently selected from substituted or unsubstituted hydrocarbyl groups.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: April 13, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Andreas H. Hogt, John Meijer
  • Patent number: 6719980
    Abstract: The present invention relates to the structural proteins of the causative agent of Pancreatic Disease in fish, nucleotide sequences encoding said proteins, vaccines comprising said proteins or nucleotide sequences and diagnostic kits comprising said proteins or nucleotide sequences.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: April 13, 2004
    Assignee: Akzo Nobel NV
    Inventors: Jonathan Weston, Daniel Todd
  • Patent number: 6716785
    Abstract: A process for the in-situ preparation of a composite comprising a cationic clay and binder/matrix material from sources comprising an aluminum containing source, a silicon containing source and a di-valent metal containing source comprising the steps of: a. preparing a precursor mixture by mixing the aluminum containing source, the silicon containing source and the di-valent metal containing source with seeding material, b. homogenizing the precursor mixture, and c. aging the precursor mixture to obtain the composite. One or two of the aluminum containing source, silicon containing source or di-valent metal containing source is to be in excess of the amount required for stoichiometry of the three sources with respect to the formation of the cationic clay. The excess source or sources will form the binder/matrix material of the composite. The invention also includes a body comprising a composite obtained by this process having binding/matrix material present in a discontinuous phase.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: April 6, 2004
    Assignee: Akzo Nobel NV
    Inventors: Dennis Stamires, Paul O'Connor
  • Patent number: 6717005
    Abstract: A polyphosphate ester composition consisting essentially of an effective amount of a cycloaliphatic epoxy composition for reduction of the total acid number of the composition. The phosphate ester is of the formula: where R can be aryl or alkaryl, R′ can be arylene, arylene-alkylene-arylene, or alkylene, and n ranges from about 1 to about 5.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: April 6, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Eric W. Burkhardt, Danielle A. Bright, Sergei Levchik, Sophia Dashevsky, Mark Buczek
  • Patent number: 6716337
    Abstract: The invention pertains to a carrier composition comprising (a) at least 30 wt % of a synthetic cracking component, based on the total weight of the carrier composition, which comprises oxidic compounds of one or more trivalent metallic elements, tetravalent metallic elements, and divalent metallic elements, said cracking component comprising elemental clay platelets with an average diameter of 1 &mgr;m or less and an average degree of stacking of 20 platelets per stack or less, and/or comprising a cogel with a saponite content CA of less than 60%, in which the total of sodium and potassium amounts to less than 1 wt %, based on the total weight of the cogel, and (b) 1-25 wt % of a zeolite Y, based on the total weight of the carrier composition, with a unit cell size below 24.35 Å. The invention further pertains to a catalyst comprising said carrier composition and at least a hydrogenation metal, and a process for converting heavy feedstock into middle distillates using said catalyst.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 6, 2004
    Assignee: Akzo Nobel NV
    Inventors: Jan Nieman, Johannes Wilhelmus Maria Sonnemans, Bas De Kroes