Patents by Inventor Oihana Elizalde

Oihana Elizalde 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: 7816441
    Abstract: The use of an addition polymer A composed in copolymerized form of 0.1% to 40% by weight of at least one C3 to C30 alkene, 40% to 99.9% by weight of at least one ethylenically unsaturated C3 to C6 monocarboxylic acid, 0% to 50% by weight of at least one ethylenically unsaturated C4 to C12 dicarboxylic acid and/or of the ethylenically unsaturated dicarboxylic monoalkyl esters or dicarboxylic anhydrides obtainable from said acid, and 0% to 30% by weight of at least one other ethylenically unsaturated compound which is copolymerizable with the aforementioned monomers, as a dispersing assistant in free-radically initiated aqueous emulsion or suspension polymerization.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: October 19, 2010
    Assignee: BASF SE
    Inventors: Oihana Elizalde, Kathrin Michl, Rajan Venkatesh
  • Publication number: 20100234506
    Abstract: Aqueous binders for fibrous and granular substrates, based on hydrophobically modified polymers.
    Type: Application
    Filed: October 6, 2008
    Publication date: September 16, 2010
    Applicant: BASF SE
    Inventors: Oihana Elizalde, Kathrin Michl, Rajan Venkatesh
  • Publication number: 20100174018
    Abstract: Aqueous formulations comprise (A) at least one pigment, (B) at least one carbodiimide, (C) at least one random polyurethane, and (D) optionally at least one polyacrylate comprising no interpolymerized comonomers capable of detaching one equivalent of formaldehyde per mole on exposure to temperatures in the range from 100 to 250° C.
    Type: Application
    Filed: June 23, 2008
    Publication date: July 8, 2010
    Applicant: BASF SE
    Inventors: Holger Tuerk, Karl Siemensmeyer, Oihana Elizalde, Maria Teresa Hechavarria Fonseca, Karl Haeberle, Stefan Kuhn
  • Publication number: 20100170648
    Abstract: Use of an aqueous polymer composition for impregnating base paper.
    Type: Application
    Filed: January 9, 2007
    Publication date: July 8, 2010
    Inventors: Oihana Elizalde, Matthias Gerst
  • Publication number: 20100144225
    Abstract: The invention relates to a method for treating surfaces, characterized in that the surface is treated using (a) at least one hydruphobing agent, (b) at least one cross-linked organic copolymer in particulate form, (c) at least one emulsifier, without the use of acrylate or polyurethane binding agents, and is dried subsequent to the treatment.
    Type: Application
    Filed: May 20, 2008
    Publication date: June 10, 2010
    Applicant: Basf Se
    Inventors: Oihana Elizalde, Michael Schmitt
  • Publication number: 20100093905
    Abstract: Aqueous binders for granular and fibrous substrates, based on hydrophobically modified polymers.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 15, 2010
    Applicant: BASF SE
    Inventors: Oihana ELIZALDE, Kathrin Michl
  • Publication number: 20100068959
    Abstract: Use of an aqueous polymer composition as a binder for fibrous and granular substrates
    Type: Application
    Filed: November 23, 2009
    Publication date: March 18, 2010
    Applicant: BASF SE
    Inventors: Oihana ELIZALDE, Matthias Gerst
  • Publication number: 20100062666
    Abstract: The use of compounds of the general formula I in aqueous binder-containing formulations, wherein the variables are each as defined as follows: R1 is selected from C1-C20-alkyl, straight chain or branched, or CO—C1-C19-alkyl or CO—C2-C19-alkenyl, straight chain or branched, R2 in each occurrence is the same or different and selected from C1-C3-alkyl, R3 is selected from C1-C20-alkyl, straight chain or branched, or CO—C1-C19-alkyl or CO—C2-C19-alkenyl, straight chain or branched, x is from 0 to 20, y is from 0 to 20, provided x and y are not both zero, a is from 1 to 3.
    Type: Application
    Filed: October 23, 2007
    Publication date: March 11, 2010
    Applicant: BASF SE
    Inventors: Karl Siemensmeyer, Johann Mueller, Stefan Kuhn, Karl-Heinz Weigert, Oihana Elizalde
  • Publication number: 20100040790
    Abstract: Aqueous formulations comprise (A) at least one film-forming addition (co)polymer, (B) particles comprising a core (a) and at least one envelope (b) other than said core (a), and optionally (C) at least one hydrophobicizing agent.
    Type: Application
    Filed: November 15, 2007
    Publication date: February 18, 2010
    Applicant: BASF SE
    Inventors: Oihana Elizalde, Michael Schmitt
  • Publication number: 20100022708
    Abstract: The use of an addition polymer A composed in copolymerized form of 0.1% to 40% by weight of at least one C3 to C30 alkene, 40% to 99.9% by weight of at least one ethylenically unsaturated C3 to C6 monocarboxylic acid, 0% to 50% by weight of at least one ethylenically unsaturated C4 to C12 dicarboxylic acid and/or of the ethylenically unsaturated dicarboxylic monoalkyl esters or dicarboxylic anhydrides obtainable from said acid, and 0% to 30% by weight of at least one other ethylenically unsaturated compound which is copolymerizable with the aforementioned monomers, as a dispersing assistant in free-radically initiated aqueous emulsion or suspension polymerization.
    Type: Application
    Filed: July 23, 2009
    Publication date: January 28, 2010
    Applicant: BASF SE
    Inventors: Oihana Elizalde, Kathrin Michl, Rajan Venkatesh
  • Publication number: 20100010143
    Abstract: Process for preparing an aqueous polymer composition using water-soluble free radical chain regulators.
    Type: Application
    Filed: February 4, 2008
    Publication date: January 14, 2010
    Applicant: BASF SE
    Inventors: Oihana Elizalde, Matthias Gerst
  • Publication number: 20090085240
    Abstract: Use of an aqueous polymer composition as a binder for fibrous and granular substrates
    Type: Application
    Filed: April 5, 2007
    Publication date: April 2, 2009
    Inventors: Oihana Elizalde, Matthias Gerst
  • Publication number: 20090029140
    Abstract: A process for treating a substrate comprises utilizing at least one aqueous formulation comprising (A) at least one acrylate-based binder without interpolymerization of any comonomer capable of detaching, per mole, one equivalent of formaldehyde on exposure to a temperature in the range from 100 to 250° C., (B) at least one carbodiimide, (C) at least one diol, triol or polyol.
    Type: Application
    Filed: January 23, 2007
    Publication date: January 29, 2009
    Applicant: BASF SE
    Inventors: Karl Haberle, Karl Siemensmeyer, Ralf Norenberg, Oihana Elizalde, Maria Teresa Hechavarria Fonseca, Jurgen Reichert, Rolf Strobel
  • Publication number: 20090004441
    Abstract: A process for treating a substrate comprises utilizing at least one aqueous formulation comprising (A) at least one binder obtainable by copolymerization of ethylene and (meth)acrylic acid and optionally one or more further comonomers, (B) at least one reaction product of at least one carbodiimide (C) with at least one diol, triol or polyol (D), or (C) at least one carbodiimide and optionally at least one diol, triol or polyol.
    Type: Application
    Filed: January 24, 2007
    Publication date: January 1, 2009
    Applicant: BASF SE
    Inventors: Karl Haberle, Karl Siemensmeyer, Ralf Norenberg, Oihana Elizalde, Maria Teresa Fonseca, Jurgen Reichert, Rolf Strobel
  • Publication number: 20080254212
    Abstract: A process for coating a surface comprises said surface being coated with particles (A) comprising a core (a) and at least one envelope (b) other than said core (a), and optionally with at least one hydrophobicizing agent (B) and thereafter thermally treated.
    Type: Application
    Filed: September 11, 2006
    Publication date: October 16, 2008
    Applicant: BASF SE
    Inventors: Oihana Elizalde, Michael Schmitt, Marc Bothe
  • Publication number: 20080250571
    Abstract: A process for treating a surface comprises said surface being treated with (a) at least one hydrophobicizing agent, (b) at least one crosslinked organic copolymer in particulate form, (c) at least one film-forming addition copolymer having epoxy groups, NH—CH2OH groups or acetoacetyl groups, (d) if appropriate one or more emulsifiers, and subsequently dried.
    Type: Application
    Filed: September 11, 2006
    Publication date: October 16, 2008
    Applicant: BASF SE
    Inventors: Oihana Elizalde, Michael Schmitt, Marc Bothe
  • Publication number: 20080196824
    Abstract: A process for improving the color brilliance of a color polymer system which is composed of a matrix and discrete polymer particles which are distributed in the matrix in accordance with a defined spatial lattice structure and are obtained by filming an emulsion polymer with core/shell structure, the emulsion polymer being obtainable by polymerization of monomers in at least one first stage (monomers of the core) and subsequent polymerization of monomers in at least one further, second stage (monomers of the shell), which comprises polymerizing the monomers of the core in the presence of an absorber for electromagnetic waves especially a UV absorber.
    Type: Application
    Filed: May 16, 2006
    Publication date: August 21, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Reinhold J. Leyrer, Stephan Altmann, Oihana Elizalde
  • Publication number: 20080156424
    Abstract: Process for improvement of the elasticity of a colored polymer system, which is composed of a matrix and of discrete polymer particles distributed in accordance with a defined spatial lattice structure in the matrix, and which is obtained by filming of an emulsion polymer with core/shell structure, where the emulsion polymer is obtainable via polymerization of monomers in at least one first stage (monomers of the core) and subsequent polymerization of monomers in at least one further, second stage (monomers of the shell), which comprises using monomers whose glass transition temperature is below 0° C. as at least 5% by weight of the monomers of the core.
    Type: Application
    Filed: May 16, 2006
    Publication date: July 3, 2008
    Inventors: Reinhold J. Leyrer, Stephan Altmann, Oihana Elizalde