Patents by Inventor Johan Nyander
Johan Nyander 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: 9657441Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.Type: GrantFiled: August 21, 2014Date of Patent: May 23, 2017Assignee: Akzo Nobel N.V.Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
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Patent number: 9139958Abstract: The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibers, (ii) adding to the suspension after the last point of high shear subsequent a centri-screen: (a) a first anionic component which is a water-soluble anionic anionic polysaccharide; (b) a second anionic component which is a water-dispersible or branched acrylamide-based polymer; and (c) a third anionic component which is an anionic siliceous material comprising an anionic silica-based polymer comprising anionic silica-based particles having a specific surface area within the range of from 100 to 1700 m2/g (iii) dewatering the obtained suspension to form paper.Type: GrantFiled: October 11, 2013Date of Patent: September 22, 2015Assignee: AKZO NOBEL N.V.Inventors: Johan Nyander, Fredrik Solhage
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Publication number: 20140360692Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.Type: ApplicationFiled: August 21, 2014Publication date: December 11, 2014Inventors: ERIK SANNE, RUNE KJELL ANDERSSON, JOHAN NYANDER
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Patent number: 8828188Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.Type: GrantFiled: July 27, 2012Date of Patent: September 9, 2014Assignee: Akzo Nobel N.V.Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
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Publication number: 20140174683Abstract: The present invention relates to a process for producing paper which comprises: (i) providing an aqueous suspension comprising cellulosic fibres, (ii) adding to the suspension after the last point of high shear subsequent a centri-screen: (a) a first anionic component which is a water-soluble anionic anionic polysaccharide; (b) a second anionic component which is a water-dispersible or branched acrylamide-based polymer; and (c) a third anionic component which is an anionic siliceous material comprising an anionic silica-based polymer comprising anionic silica-based particles having a specific surface area within the range of from 100 to 1700 m2/g (iii) dewatering the obtained suspension to form paper.Type: ApplicationFiled: October 11, 2013Publication date: June 26, 2014Applicant: AKZO NOBEL N.V.Inventors: Johan NYANDER, Fredrik SOLHAGE
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Patent number: 8613832Abstract: The present invention relates to a drainage and retention aid composition which comprises: (d) a first anionic component which is a water-soluble anionic organic polymer; (e) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (f) a third anionic component which is an anionic siliceous material; wherein the first, second and third anionic components are present in a dry matter content of from 0.01 to 50% by weight.Type: GrantFiled: February 15, 2012Date of Patent: December 24, 2013Assignee: Akzo Nobel N.V.Inventors: Johan Nyander, Fredrik Solhage
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Publication number: 20120291671Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.Type: ApplicationFiled: July 27, 2012Publication date: November 22, 2012Inventors: Erik SANNE, Rune Kjell ANDERSSON, Johan NYANDER
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Patent number: 8252143Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.Type: GrantFiled: June 10, 2005Date of Patent: August 28, 2012Assignee: Akzo Nobel N.V.Inventors: Erik Sanne, Rune Kjell Andersson, Johan Nyander
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Publication number: 20120186765Abstract: The present invention relates to a drainage and retention aid composition which comprises: (d) a first anionic component which is a water-soluble anionic organic polymer; (e) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (f) a third anionic component which is an anionic siliceous material; wherein the first, second and third anionic components are present in a dry matter content of from 0.01 to 50% by weight.Type: ApplicationFiled: February 15, 2012Publication date: July 26, 2012Applicant: AKZO NOBEL N.V.Inventors: Johan NYANDER, Fredrik SOLHAGE
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Patent number: 8148434Abstract: A process for producing an aqueous silica-based sol is disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminum compound; and separating the resin from the slurry. Silica-based sols having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, as well as the use of such silica-based sols in producing paper are disclosed.Type: GrantFiled: November 15, 2010Date of Patent: April 3, 2012Assignee: Akzo Nobel N.V.Inventors: Johan Nyander, Glenn Mankin
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Publication number: 20110065812Abstract: A process for producing an aqueous silica-based sol is disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminum compound; and separating the resin from the slurry. Silica-based sols having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, as well as the use of such silica-based sols in producing paper are disclosed.Type: ApplicationFiled: November 15, 2010Publication date: March 17, 2011Applicant: AKZO NOBEL N.V.Inventors: Johan NYANDER, Glenn MANKIN
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Patent number: 7851513Abstract: A process for producing aqueous silica-based sols, having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, are disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminium compound; and separating the resin from the slurry. Further, the use of such silica-based sols in producing paper is disclosed.Type: GrantFiled: November 20, 2009Date of Patent: December 14, 2010Assignee: Akzo Nobel N.V.Inventors: Johan Nyander, Glenn Mankin
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Publication number: 20100065238Abstract: A process for producing an aqueous silica-based sol is disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminium compound; and separating the resin from the slurry. Silica-based sols having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, as well as the use of such silica-based sols in producing paper are disclosed.Type: ApplicationFiled: November 20, 2009Publication date: March 18, 2010Applicant: AKZO NOBEL N. V.Inventors: Johan NYANDER, Glenn Mankin
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Patent number: 7629392Abstract: A process for producing an aqueous silica-based soils disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminum compound; and separating the resin from the slurry. Silica-based sols having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, as well as the use of such silica-based sols in producing paper are also disclosed.Type: GrantFiled: April 7, 2005Date of Patent: December 8, 2009Assignee: Akzo Nobel N.V.Inventors: Johan Nyander, Glenn Mankin
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Patent number: 7608644Abstract: The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition comprising an anionic naphthalene sulphonate formaldehyde condensate and anionic silica-based particles, the composition having a weight ratio of naphthalene sulphonate formaldehyde condensate to silica-based particles within the range of from 0.2:1 to 99:1, and containing naphthalene sulphonate formaldehyde condensate and silica-based particles in an amount of at least 0.01% by weight, based on the total weight of the aqueous silica-containing composition, and with the proviso that the composition contains substantially no cellulose-reactive sizing agent. The invention also encompasses an aqueous silica-containing composition and a method for preparation of an aqueous silica-containing compound.Type: GrantFiled: May 13, 2005Date of Patent: October 27, 2009Assignee: Akzo Nobel N.V.Inventors: Johan Nyander, Hans Johansson-Vestin, Jan Nordin, Annika Viola Pal
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Patent number: 7156955Abstract: The present invention refers to a process for the production of paper from a suspension containing cellulosic fibers, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition comprising an anionic naphthalene sulphonate formaldehyde condensate and anionic silica-based particles, the composition having a weight ratio of naphthalene sulphonate formaldehyde condensate to silica-based particles within the range of from 0.2:1 to 99:1, and containing naphthalene sulphonate formaldehyde condensate and silica-based particles in an amount of at least 0.01% by weight, based on the total weight of the aqueous silica-containing composition, and with the proviso that the composition contains substantially no cellulose-reactive sizing agent. The invention also encompasses an aqueous silica-containing composition and a method for preparation of an aqueous silica-containing compound.Type: GrantFiled: December 20, 2002Date of Patent: January 2, 2007Assignee: Akzo Nobel N.V.Inventors: Johan Nyander, Hans Johansson-Vestin, Jan Nordin, Annika Viola Pal
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Publication number: 20060254464Abstract: The present invention relates to a drainage and retention aid composition which comprises: (g) a first anionic component which is a water-soluble anionic organic polymer; (h) a second anionic component which is a water-dispersible or branched anionic organic polymer; and (i) a third anionic component which is an anionic siliceous material; wherein the first, second and third anionic components are present in a dry matter content of from 0.01 to 50% by weight.Type: ApplicationFiled: May 9, 2006Publication date: November 16, 2006Applicant: AKZO NOBEL N.V.Inventors: Johan Nyander, Fredrik Solhage
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Publication number: 20050279474Abstract: The present invention relates to a filler comprising clay and cellulose derivative having a degree of substitution of net ionic groups up to about 0.65.Type: ApplicationFiled: June 10, 2005Publication date: December 22, 2005Inventors: Erik Sanne, Rune Andersson, Johan Nyander
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Publication number: 20050228057Abstract: A process for producing an aqueous silica-based sol is disclosed wherein a cationic ion exchange resin having part of its ion exchange capacity in hydrogen form is contacted with an aqueous alkali metal silicate to form a slurry having a pH from 5.0 to 11.5 and/or having particle aggregation or microgel formation corresponding to a S value up to 45%; adjusting the pH using a material comprising an aluminium compound; and separating the resin from the slurry. Silica-based sols having an S value from 15 to 25%, mole ratio Si:Al from 20:1 to 50:1, mole ratio Si:X, where X=alkali metal, from 5:1 to 17:1, SiO2 content of at least 5% by weight and containing silica-based particles having a specific surface area of at least 300 m2/g, as well as the use of such silica-based sols in producing paper are also disclosed.Type: ApplicationFiled: April 7, 2005Publication date: October 13, 2005Inventors: Johan Nyander, Glenn Mankin
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Publication number: 20050209389Abstract: The present invention refers to a process for the production of paper from a suspension containing cellulosic fibres, and optionally fillers, comprising adding to the suspension at least one cationic organic polymer and an aqueous silica-containing composition comprising an anionic naphthalene sulphonate formaldehyde condensate and anionic silica-based particles, the composition having a weight ratio of naphthalene sulphonate formaldehyde condensate to silica-based particles within the range of from 0.2:1 to 99:1, and containing naphthalene sulphonate formaldehyde condensate and silica-based particles in an amount of at least 0.01% by weight, based on the total weight of the aqueous silica-containing composition, and with the proviso that the composition contains substantially no cellulose-reactive sizing agent. The invention also encompasses an aqueous silica-containing composition and a method for preparation of an aqueous silica-containing compound.Type: ApplicationFiled: May 13, 2005Publication date: September 22, 2005Inventors: Johan Nyander, Hans Johansson-Vestin, Jan Nordin, Annika Pal