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).
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Patent number: 11912904Abstract: 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: GrantFiled: June 13, 2019Date of Patent: February 27, 2024Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Per Anders Restorp, Hans Lagnemo, Peter Harry Johan Greenwood
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Publication number: 20210139753Abstract: 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: ApplicationFiled: June 13, 2019Publication date: May 13, 2021Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Per Anders RESTORP, Hans LAGNEMO, Peter Harry Johan GREENWOOD
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Patent number: 9650535Abstract: 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: GrantFiled: May 6, 2013Date of Patent: May 16, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Patent number: 9637639Abstract: 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: GrantFiled: November 1, 2010Date of Patent: May 2, 2017Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Patent number: 9365460Abstract: 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: GrantFiled: November 7, 2007Date of Patent: June 14, 2016Assignee: Akzo Nobel N.V.Inventors: Peter Greenwood, Hans Lagnemo
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Patent number: 9249317Abstract: 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: GrantFiled: March 23, 2012Date of Patent: February 2, 2016Assignee: AKZO NOBEL CHEMICAL INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Patent number: 9187647Abstract: 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: GrantFiled: March 10, 2010Date of Patent: November 17, 2015Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo, Martin Lagnemo
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Publication number: 20150141558Abstract: 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: ApplicationFiled: May 6, 2013Publication date: May 21, 2015Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Publication number: 20140039093Abstract: 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: ApplicationFiled: March 23, 2012Publication date: February 6, 2014Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Patent number: 8361946Abstract: 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: GrantFiled: April 7, 2005Date of Patent: January 29, 2013Assignee: Akzo Nobel N.V.Inventors: Peter Greenwood, Hans Lagnemo
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Publication number: 20120234206Abstract: 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: ApplicationFiled: November 1, 2010Publication date: September 20, 2012Applicant: Akzo Nobel Chemicals International B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo
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Publication number: 20120059089Abstract: 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: ApplicationFiled: March 10, 2010Publication date: March 8, 2012Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Peter Harry Johan Greenwood, Hans Lagnemo, Martin Lagnemo
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Patent number: 7674833Abstract: 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: GrantFiled: November 9, 2004Date of Patent: March 9, 2010Assignee: Akzo Nobel N.V.Inventors: Peter Greenwood, Hans Lagnemo, Matthew Reed
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Patent number: 7553888Abstract: 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: GrantFiled: October 14, 2003Date of Patent: June 30, 2009Assignee: Akzo Nobel N.V.Inventors: Peter Greenwood, Hans Lagnemo
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Publication number: 20080295738Abstract: 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: ApplicationFiled: November 7, 2007Publication date: December 4, 2008Applicant: AKZO NOBEL N.V.Inventors: Peter GREENWOOD, Hans Lagnemo
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Publication number: 20060263694Abstract: 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: ApplicationFiled: November 9, 2004Publication date: November 23, 2006Applicant: Akzo Nobel N.V.Inventors: Peter Greenwood, Hans Lagnemo, Matthew Reed
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Publication number: 20060135676Abstract: 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: ApplicationFiled: December 13, 2005Publication date: June 22, 2006Applicant: AKZO NOBEL N.V.Inventors: Peter Greenwood, Hans Lagnemo
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Publication number: 20050233937Abstract: 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: ApplicationFiled: April 7, 2005Publication date: October 20, 2005Applicant: AKZO NOBEL N.V.Inventors: Peter Greenwood, Hans Lagnemo
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Publication number: 20040097600Abstract: 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: ApplicationFiled: October 14, 2003Publication date: May 20, 2004Applicant: AKZO NOBEL N.V.Inventors: Peter Greenwood, Hans Lagnemo
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Patent number: 6255272Abstract: 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: GrantFiled: April 5, 2000Date of Patent: July 3, 2001Assignee: Eka Chemicals ABInventors: Hans Lagnemo, Monica Jigstam