Patents by Inventor Hans Lagnemo

Hans Lagnemo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11912904
    Abstract: The disclosure is directed to a method for preparing an adhesive composition, in which an aqueous phase comprising a modified colloidal silica is mixed with an organic phase comprising one or more monomers in the presence of an initiator, wherein conditions are maintained such that polymerisation of the one or more monomers occurs to form an aqueous polymeric dispersion, wherein; (i) the aqueous polymeric dispersion comprises polymer particles with protective colloid on their surface; (ii) the modified colloidal silica comprises colloidal silica particles with at least one surface-bound hydrophilic organosilane moiety and/or comprises colloidal silica particles with at least one additional element on its surface, the element being able formally to adopt a +3 or +4 oxidation state; and (iii) the initiator is at least partially soluble in water.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: February 27, 2024
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Per Anders Restorp, Hans Lagnemo, Peter Harry Johan Greenwood
  • Publication number: 20210139753
    Abstract: The disclosure is directed to a method for preparing an adhesive composition, in which an aqueous phase comprising a modified colloidal silica is mixed with an organic phase comprising one or more monomers in the presence of an initiator, wherein conditions are maintained such that polymerisation of the one or more monomers occurs to form an aqueous polymeric dispersion, wherein; (i) the aqueous polymeric dispersion comprises polymer particles with protective colloid on their surface; (ii) the modified colloidal silica comprises colloidal silica particles with at least one surface-bound hydrophilic organosilane moiety and/or comprises colloidal silica particles with at least one additional element on its surface, the element being able formally to adopt a +3 or +4 oxidation state; and (iii) the initiator is at least partially soluble in water.
    Type: Application
    Filed: June 13, 2019
    Publication date: May 13, 2021
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Per Anders RESTORP, Hans LAGNEMO, Peter Harry Johan GREENWOOD
  • Patent number: 9650535
    Abstract: The invention relates to a method of providing an aqueous paint dispersion comprising silanized colloidal silica particles and an acrylate-based binder wherein the weight ratio of SiO2 to acrylate-based binder on a dry basis ranges from 0.02 to 0.2, and wherein the content of SiO2, measured by XRF, in said dispersion ranges from 1.05 to 7.5 wt %, wherein silane groups present in the silanized colloidal silica particles are derived from silanes containing an epoxy group, glycidoxy group, glycidoxypropyl group, ureido-based silanes, methacrylamido silanes, mercapto silanes, and combinations thereof. The invention also relates to the use thereof.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: May 16, 2017
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
  • Patent number: 9637639
    Abstract: The present invention relates to a method of producing a dispersion comprising a) mixing an aqueous dispersion of silanized colloidal silica particles with at least one organic compound containing at least two hydroxyl groups to provide an aqueous dispersion of silanized colloidal silica particles and said at least one organic compound, wherein the mixing is performed in the substantial absence of any monofunctional alcohol b) withdrawing water from the formed aqueous dispersion until the remainder of water in the dispersion is below about 10 wt %. The invention also relates to a dispersion obtainable therefrom and the use of the dispersion.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: May 2, 2017
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
  • Patent number: 9365460
    Abstract: The invention relates to a method of producing a substantially aqueous pigment dispersion substantially free from an organic binder comprising mixing at least one water-soluble or water-dispersible silane compound and colloidal silica particles to form silanized colloidal silica particles in an aqueous dispersion whereby said at least one silane compound is mixed with colloidal silica particles in a weight ratio of silane to silica of from about 0.2 to about 1.5, mixing said silanized colloidal silica particles with an organic and/or inorganic pigment, wherein the weight ratio of silica to pigment is from about 0.001 to about 0.8 to form said substantially aqueous pigment dispersion. The invention also relates to an aqueous pigment dispersion obtained from the method defined herein.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: June 14, 2016
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Patent number: 9249317
    Abstract: The present invention relates to a coating composition comprising: a) silanized colloidal silica particles; b) alkyd-containing binder; c) a carrier fluid, wherein the coating composition is essentially free from a cobalt-based drier. The present invention also relates to a method of producing a coating composition and the use of such coating composition for coating of a substrate.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: February 2, 2016
    Assignee: AKZO NOBEL CHEMICAL INTERNATIONAL B.V.
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
  • Patent number: 9187647
    Abstract: The present invention relates to a method of producing an aqueous dispersion of silanized colloidal silica particles comprising mixing in an aqueous medium a) at least one silane compound containing an epoxy-functionality, b) at least one silane compound having no epoxy-functionality capable of modifying colloidal silica particles; and c) colloidal silica particles in any order to form an aqueous dispersion of silanized colloidal silica particles containing silane compounds originating from a) and b). It also relates to a dispersion obtainable by said method and to the use thereof in coating applications.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: November 17, 2015
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo, Martin Lagnemo
  • Publication number: 20150141558
    Abstract: The invention relates to a method of providing an aqueous paint dispersion comprising silanized colloidal silica particles and an acrylate-based binder wherein the weight ratio of SiO2 to acrylate-based binder on a dry basis ranges from 0.02 to 0.2, and wherein the content of SiO2, measured by XRF, in said dispersion ranges from 1.05 to 7.5 wt %, wherein silane groups present in the silanized colloidal silica particles are derived from silanes containing an epoxy group, glycidoxy group, glycidoxypropyl group, ureido-based silanes, methacrylamido silanes, mercapto silanes, and combinations thereof. The invention also relates to the use thereof.
    Type: Application
    Filed: May 6, 2013
    Publication date: May 21, 2015
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
  • Publication number: 20140039093
    Abstract: The present invention relates to a coating composition comprising: a) silanized colloidal silica particles; b) alkyd-containing binder; c) a carrier fluid, wherein the coating composition is essentially free from a cobalt-based drier. The present invention also relates to a method of producing a coating composition and the use of such coating composition for coating of a substrate.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 6, 2014
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
  • Patent number: 8361946
    Abstract: The invention relates to a method of preparing an aqueous detergent dispersion comprising mixing at least one silane compound, colloidal silica particles, and a detergent to form an aqueous detergent dispersion comprising silanized colloidal silica particles. The invention also relates to a dispersion obtainable by the method and to the use thereof.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: January 29, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Publication number: 20120234206
    Abstract: The present invention relates to a method of producing a dispersion comprising a) mixing an aqueous dispersion of silanised colloidal silica particles with at least one organic compound containing at least two hydroxyl groups to provide an aqueous dispersion of silanised colloidal silica particles and said at least one organic compound, wherein the mixing is performed in the substantial absence of any monofunctional alcohol b) withdrawing water from the formed aqueous dispersion until the remainder of water in the dispersion is below about 10 wt %. The invention also relates to a dispersion obtainable therefrom and the use of the dispersion.
    Type: Application
    Filed: November 1, 2010
    Publication date: September 20, 2012
    Applicant: Akzo Nobel Chemicals International B.V.
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
  • Publication number: 20120059089
    Abstract: The present invention relates to a method of producing an aqueous dispersion of silanized colloidal silica particles comprising mixing in an aqueous medium a) at least one silane compound containing an epoxy-functionality, b) at least one silane compound having no epoxy-functionality capable of modifying colloidal silica particles; and c) colloidal silica particles in any order to form an aqueous dispersion of silanized colloidal silica particles containing silane compounds originating from a) and b). It also relates to a dispersion obtainable by said method and to the use thereof in coating applications.
    Type: Application
    Filed: March 10, 2010
    Publication date: March 8, 2012
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Peter Harry Johan Greenwood, Hans Lagnemo, Martin Lagnemo
  • Patent number: 7674833
    Abstract: The present invention relates to a method of preparing a composition comprising mixing a silica sol having an S-value from about 5 to about 50% and a mineral acid. The invention also relates to a composition obtainable by the method and a composition comprising a network of silica particles and mineral acid, wherein the silica particles have a particle size of from about 2 to about 7 nm. The invention also relates to the use of the composition as a gelled electrolyte.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: March 9, 2010
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo, Matthew Reed
  • Patent number: 7553888
    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: Grant
    Filed: October 14, 2003
    Date of Patent: June 30, 2009
    Assignee: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Publication number: 20080295738
    Abstract: The invention relates to a method of producing a substantially aqueous pigment dispersion substantially free from an organic binder comprising mixing at least one water-soluble or water-dispersible silane compound and colloidal silica particles to form silanized colloidal silica particles in an aqueous dispersion whereby said at least one silane compound is mixed with colloidal silica particles in a weight ratio of silane to silica of from about 0.2 to about 1.5, mixing said silanized colloidal silica particles with an organic and/or inorganic pigment, wherein the weight ratio of silica to pigment is from about 0.001 to about 0.8 to form said substantially aqueous pigment dispersion. The invention also relates to an aqueous pigment dispersion obtained from the method defined herein.
    Type: Application
    Filed: November 7, 2007
    Publication date: December 4, 2008
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter GREENWOOD, Hans Lagnemo
  • Publication number: 20060263694
    Abstract: The present invention relates to a method of preparing a composition comprising mixing a silica sol having an S-value from about 5 to about 50% and a mineral acid. The invention also relates to a composition obtainable by the method and a composition comprising a network of silica particles and mineral acid, wherein the silica particles have a particle size of from about 2 to about 7 nm. The invention also relates to the use of the composition as a gelled electrolyte.
    Type: Application
    Filed: November 9, 2004
    Publication date: November 23, 2006
    Applicant: Akzo Nobel N.V.
    Inventors: Peter Greenwood, Hans Lagnemo, Matthew Reed
  • Publication number: 20060135676
    Abstract: The present invention relates to a barrier composition comprising a dispersion, emulsion or solution of a polymer, starch or starch derivative; colloidal silica particles and a curing agent capable of cross-linking said polymer, starch or starch derivative and coupling said silica particles thereto. The invention also relates to a barrier layer obtainable from said barrier composition and a method of providing such composition and layer. The invention also relates to a laminated packaging material comprising a substrate layer and a barrier layer formed from a barrier composition on at least one side of the substrate layer. The invention also relates to the use thereof, inter alia to provide a packaging container, a barrier film etc.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 22, 2006
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • Publication number: 20050233937
    Abstract: The invention relates to a method of preparing an aqueous detergent dispersion comprising mixing at least one silane compound, colloidal silica particles, and a detergent to form an aqueous detergent dispersion comprising silanized colloidal silica particles. The invention also relates to a dispersion obtainable by the method and to the use thereof.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 20, 2005
    Applicant: AKZO NOBEL N.V.
    Inventors: Peter Greenwood, Hans Lagnemo
  • 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
  • Patent number: 6255272
    Abstract: The invention relates to particles comprising a peroxy compound with capability of realeasing hydrogen peroxide or peroxy acids in aqueous solutions and an amino acid of the formula (HOOC)2N—CnHmCOOH—R in which R is H, CH2OH OR CH3, n is 1, 2 or 3 and m is 0-2n; or a salt thereof. The invention also relates to use of the particles and a composition comprising such particles.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: July 3, 2001
    Assignee: Eka Chemicals AB
    Inventors: Hans Lagnemo, Monica Jigstam