Patents by Inventor Mubarik Mahmood Chowdhry
Mubarik Mahmood Chowdhry 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: 8901237Abstract: The invention also relates to a method to increase stain resistance and penetration resistance of aqueous coating compositions which method comprises providing a coating composition which contain at least one pigment, at least one film-forming polymer in the form of an aqueous polymer dispersion and at least one anionic surfactant, wherein the anionic surfactant comprises at least 85% by weight, preferably at least 90% by weight, more preferably at least 95% by weight, based on the total weight of anionic surfactant in the coating composition, of at least one anionic surfactant S, which is selected from semi-esters of sulfuric acid or phosphoric acid with an alcohol, which alcohol carries at least one alkyl radical having from 8 to 30 carbon atoms or an alkyl substituted phenyl radical wherein alkyl has from 4 to 30 carbon atoms and which alcohol may carry an oligo-C2-C3-alkylene-ether group provided that the number of repeating units in the oligo-C2-C3-alkylene-ether group is at most 15, or a salt thereof.Type: GrantFiled: September 11, 2006Date of Patent: December 2, 2014Assignee: BASF AktiengesellschaftInventors: Mubarik Mahmood Chowdhry, Hideki Yamashita, Cheeseng Yong, Gregory John Catterall, Jonathon Shane Allen, Roger Jan Van Sonsbeek, David Redfern, Bernhard Schuler, Oliver Wagner, David Christie
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Patent number: 8293825Abstract: The present invention relates to the use of a polymer dispersion (PD) comprising at least one polymer (P), obtainable by free-radical emulsion polymerization of at least one ethylenically unsaturated monomer (M1) and at least one monomer (M2) different therefrom and selected from esters of phosphonic acid or of phosphoric acid with unalkoxylated or alkoxylated hydroxyalkyl(meth)acrylates, and at least one emulsifier (E) selected from phosphoric esters with unalkoxylated or alkoxylated C8-C30 alkanols, and their salts, in coating materials to improve the scrub resistance of the coatings produced therefrom and/or to improve the burnish resistance of the coatings produced therefrom and/or to improve the stain resistance of the coatings produced therefrom and/or to improve the pigment distribution in the coatings produced therefrom and/or to reduce the emission of volatile organic compounds by the coatings produced therefrom, to polymer dispersions used in accordance with the invention, and to coating materials cType: GrantFiled: March 20, 2009Date of Patent: October 23, 2012Assignee: BASF SEInventors: Alexandre Terrenoire, Chris Titmarsh, Hideki Yamashita, Chee Seng Yong, Mubarik Mahmood Chowdhry, Mun Hoe Stanley Kwan, Jonathan Allen
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Patent number: 8013085Abstract: Process for preparing an aqueous polymer dispersion by polymerizing at least one ethylenically unsaturated monomer B in an aqueous medium in the presence of polymer particles A and at least one dispersant.Type: GrantFiled: June 4, 2004Date of Patent: September 6, 2011Assignee: BASF AktiengesellschaftInventors: Markus Schmid, Mubarik Mahmood Chowdhry, Dieter Distler, Reinhold J. Leyrer
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Publication number: 20110009540Abstract: The present invention relates to the use of a polymer dispersion (PD) comprising at least one polymer (P), obtainable by free-radical emulsion polymerization of at least one ethylenically unsaturated monomer (M1) and at least one monomer (M2) different therefrom and selected from esters of phosphonic acid or of phosphoric acid with unalkoxylated or alkoxylated hydroxyalkyl (meth)acrylates, and at least one emulsifier (E) selected from phosphoric esters with unalkoxylated or alkoxylated C8-C30 alkanols, and their salts, in coating materials to improve the scrub resistance of the coatings produced therefrom and/or to improve the burnish resistance of the coatings produced therefrom and/or to improve the stain resistance of the coatings produced therefrom and/or to improve the pigment distribution in the coatings produced therefrom and/or to reduce the emission of volatile organic compounds by the coatings produced therefrom, to polymer dispersions used in accordance with the invention, and to coating materialsType: ApplicationFiled: March 20, 2009Publication date: January 13, 2011Applicant: BASF SEInventors: Alexandre Terrenoire, Chris Titmarsh, Hideki Yamashita, Chee Seng Yong, Mubarik Mahmood Chowdhry, Mun Hoe Stanley Kwan, Jonathan Allen
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Patent number: 7750096Abstract: An aqueous polymer dispersion is prepared by reacting at least one olefin in the presence of at least one polymerization catalyst and one emulsifier in an aqueous medium by a process wherein the polymerization catalyst is prepared in an in situ reaction by reacting the ligand compound 2,6-dichloro-para-benzoquinone (Ia) and/or 2,3,6-trichloro-para-benzoquinone (Ib) with a phosphine compound or diphosphine compound and with a metal compound and the polymerization reaction is effected in an aqueous medium.Type: GrantFiled: July 8, 2004Date of Patent: July 6, 2010Assignee: BASF SEInventors: Mubarik Mahmood Chowdhry, Ulrich Nieken, Monica Haag
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Patent number: 7683145Abstract: A method for the emulsion polymerization of one or more olefins by reacting a ligand of general formulae Ia and Ib or a mixture of at least two ligands Ia or Ib, wherein R respectively represents one or several of the following radicals; hydrogen, halogen, nitrile, C1-C12-alkyl groups, C1-C12-alkoxy groups, C7-C13-aralkyl groups, C6-C14-aryl groups, and wherein identical or different compounds of general formulae Ia and Ib can, optionally, be concatenated by one or several bridges, with a phosphine compound PR3? and a metal compound of general formula M(L2)2 or M(L2)2 (L1)z, wherein the variables are defined as follows: M is a transition metal of groups 7-10 in the periodic system of the elements; L1 represents phosphanes (R5)xPH3-x or amines (R5)xNH3-x with identical or different radicals R5, ether (R5)2O, H2O, alkohols (R5)OH, pyridine, pyridine derivatives of formula C5H5-x(R5)xN, CO, C1-C12-alkylnitriles, C6-C14-arylnitriles or ethylenically unsaturated double bond systems, wherein x is a whole number ranType: GrantFiled: July 16, 2003Date of Patent: March 23, 2010Assignee: BASF SEInventors: Mubarik Mahmood Chowdhry, Markus Schmid, Peter Preishuber-Pfluegl, Xavier Sava, Horst Weiss, Stefan Mecking, Florian M. Bauers
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Patent number: 7566760Abstract: The invention relates to a method for the production of aqueous polymer dispersions, by the polymerisation of one or more olefins in aqueous media in the presence of dispersing agents and optionally organic solvents, characterised in that the polymerisation of the olefin(s) is catalysed by means of one or more complex compounds of general formula (I), where at least one of the groups R1 to R9 must be in the form of a group of the following general formula (II) where Z=an electron-withdrawing group and n=a whole number from 1 to 5.Type: GrantFiled: July 24, 2003Date of Patent: July 28, 2009Assignee: BASF AktiengesellschaftInventors: Mubarik Mahmood Chowdhry, Markus Schmid, Peter Preishuber-Pfluegl, Xavier Sava, Horst Weiss, Stefan Mecking, Martin Zuideveld, Florian M. Bauers
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Publication number: 20090030093Abstract: Process for the emulsion polymerization of one or more olefins by reacting a quinoid compound with a metal compound and a phosphine compound which is substituted by at least one polar radical and subsequently using the reaction product for the polymerization or copolymerization of olefins in water or in a solvent mixture which contains at least 50% by weight of water and at least one emulsifier.Type: ApplicationFiled: July 28, 2008Publication date: January 29, 2009Applicant: BASF AktiengessellschaftInventors: Mubarik Mahmood Chowdhry, Xavier Sava, Monica Haag, Jacob Wildeson, Stefan Mecking, Ludmila Kolb
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Patent number: 7462673Abstract: Process for preparing an aqueous polymer dispersion by polymerization of at least one olefinically unsaturated compound in an aqueous medium in the presence of at least one dispersant and a solid polymerization catalyst.Type: GrantFiled: May 6, 2004Date of Patent: December 9, 2008Assignee: BASF AktiengesellschaftInventors: Markus Schmid, Mubarik Mahmood Chowdhry, Peter Preishuber-Pfluegl, Xavier Sava, Ekkehard Lindner, Mahmoud Sunjuk, Peter Wegner
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Publication number: 20080245259Abstract: The invention also relates to a method to increase stain resistance and penetration resistance of aqueous coating compositions which method comprises providing a coating composition which contain at least one pigment, at least one film-forming polymer in the form of an aqueous polymer dispersion and at least one anionic surfactant, wherein the anionic surfactant comprises at least 85% by weight, preferably at least 90% by weight, more preferably at least 95% by weight, based on the total weight of anionic surfactant in the coating composition, of at least one anionic surfactant S, which is selected from semi-esters of sulfuric acid or phosphoric acid with an alcohol, which alcohol carries at least one alkyl radical having from 8 to 30 carbon atoms or an alkyl substituted phenyl radical wherein alkyl has from 4 to 30 carbon atoms and which alcohol may carry an oligo-C2-C3-alkylene-ether group provided that the number of repeating units in the oligo-C2-C3-alkylene-ether group is at most 15, or a salt thereof.Type: ApplicationFiled: September 11, 2006Publication date: October 9, 2008Applicant: BASF SEInventors: Mubarik Mahmood Chowdhry, Hideki Yamashita, Cheeseng Yong, Gregory John Catterall, Jonathon Shane Allen, Roger Jan Van Sonsbeek, David Redfern, Bernhard Schuler, Oliver Wagner, David Christie
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Patent number: 7417098Abstract: Process for the emulsion polymerization of one or more olefins by reacting a quinoid compound with a metal compound and a phosphine compound which is substituted by at least one polar radical and subsequently using the reaction product for the polymerization or copolymerization of olefins in water or in a solvent mixture which contains at least 50% by weight of water and at least one emulsifier.Type: GrantFiled: November 6, 2004Date of Patent: August 26, 2008Assignee: BASF SEInventors: Mubarik Mahmood Chowdhry, Xavier Sava, Monica Haag, Jacob Wildeson, Stefan Mecking, Ludmila Kolb
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Publication number: 20080182915Abstract: Process for the emulsion polymerization of one or more olefins by preparing a catalyst by reacting a quinoid compound with a metal compound and a phosphine compound which is substituted by at least one polar radical; and subsequently (co)polymerizing said one or more olefins in water or in a solvent mixture which contains at least 50% by weight of water and at least one emulsifier.Type: ApplicationFiled: April 1, 2008Publication date: July 31, 2008Applicant: BASF AktiengesellschaftInventors: Mubarik Mahmood Chowdhry, Xavier Sava, Monica Haag, Jacob Wildeson, Stefan Mecking, Ludmila Kolb
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Patent number: 7332565Abstract: A method for reducing the amount of residual monomer in aqueous polymer dispersions by aftertreatment with an initiator system comprises aftertreating the aqueous polymer dispersion with addition of an initiator system essentially comprising a) from 0.001 to 5% by weight, based on the total monomer amount used to prepare the polymer dispersion, of an inorganic salt of persulfuric acid, b) from 0.005 to 5% by weight, based on the total monomer amount used to prepare the polymer dispersion, of a methyl ketone, and c) optionally, catalytic amounts of a metal ion which is able to exist in a plurality of valence states.Type: GrantFiled: April 13, 2004Date of Patent: February 19, 2008Assignee: BASF AktiengesellschaftInventors: Mubarik Mahmood Chowdhry, Wolfgang Gaschler
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Patent number: 6800699Abstract: Process for the production of aqueous polymer dispersions by reaction of one or more olefinically unsaturated compounds in aqueous medium in the presence of a complex compound which possesses the structural element Y—M—E, E standing for nitrogen, M for a transition metal of groups 7 to 10 of the periodic system of the elements and Y for oxygen, sulfur, nitrogen or phosphorus, and which possesses no hydrophilic groups in its ligand system.Type: GrantFiled: December 17, 2001Date of Patent: October 5, 2004Assignee: BASF AktiengesellschaftInventors: Markus Schmid, Mubarik Mahmood Chowdhry, Marc Oliver Kristen, Stefan Mecking, Florian M. Bauers
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Publication number: 20040167259Abstract: The invention relates to a method for producing aqueous copolymer dispersions of copolymers consisting of carbon monoxide and olefinically unsaturated compounds, by means of copolymerisation of carbon monoxide and olefinically unsaturated compounds in an aqueous medium in the presence of metallic complexes.Type: ApplicationFiled: January 9, 2004Publication date: August 26, 2004Inventors: Markus Schmid, Mubarik Mahmood Chowdhry, Marc Oliver Kristen, Stefan Mecking, Anke Held, Ekkehard Lindner, Mahmoud Sunjuk, Peter Wegner
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Publication number: 20030114570Abstract: Process for the production of aqueous polymer dispersions by reaction of one or more olefinically unsaturated compounds in aqueous medium in the presence of a complex compound which possesses the structural element Y-M-E, E standing for nitrogen, M for a transition metal of groups 7 to 10 of the periodic system of the elements and Y for oxygen, sulfur, nitrogen or phosphorus, and which possesses no hydrophilic groups in its ligand system.Type: ApplicationFiled: December 17, 2001Publication date: June 19, 2003Inventors: Markus Schmid, Mubarik Mahmood Chowdhry, Marc Oliver Kristen, Stefan Mecking, Florian M. Bauers
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Patent number: 6541564Abstract: In a process for the metal-catalyzed preparation of copolymers of carbon monoxide and an olefinically unsaturated compound having from 2 to 20 carbon atoms in an aqueous medium, the copolymerization is carried out in the presence of a water-soluble macromolecular host compound which has a hydrophobic cavity and a hydrophilic shell.Type: GrantFiled: April 23, 2002Date of Patent: April 1, 2003Assignee: BASF AktiengesellschaftInventors: Markus Schmid, Reinhold J. Leyrer, Mubarik Mahmood Chowdhry, Marc Oliver Kristen
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Publication number: 20020198359Abstract: In a process for the metal-catalyzed preparation of copolymers of carbon monoxide and an olefinically unsaturated compound having from 2 to 20 carbon atoms in an aqueous medium, the copolymerization is carried out in the presence of a water-soluble macromolecular host compound which has a hydrophobic cavity and a hydrophilic shell.Type: ApplicationFiled: April 23, 2002Publication date: December 26, 2002Applicant: BASF AkiengesellschaftInventors: Markus Schmid, Reinhold J. Leyrer, Mubarik Mahmood Chowdhry, Marc Oliver Kristen