Patents by Inventor Maria Almato Guiteras

Maria Almato Guiteras 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).

  • Publication number: 20200332147
    Abstract: The present invention relates to coatings which have high stability with respect to chemical and mechanical impacts. Said coatings are obtainable by crosslinking polyisocyanates with a low oligomer content.
    Type: Application
    Filed: October 18, 2017
    Publication date: October 22, 2020
    Inventors: Dirk ACHTEN, Maria ALMATO GUITERAS, Saskia BEUCK, Thomas FELLER, Florian GOLLING
  • Patent number: 10640604
    Abstract: The present invention relates to hydrophilized polyurethanes having a particularly high content of hydroxy-functional, unsaturated triglycerides, to a process for preparing polyurethane dispersions based thereon, to the use of the dispersions as binders in oxidatively drying coating materials having particularly high chemical resistance, and to articles and substrates coated with these coating materials.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 5, 2020
    Assignee: Covestro Deutschland AG
    Inventors: Michael Ludewig, Maria Almato Guiteras, Pantea Nazaran, Eva Tejada Rosales
  • Publication number: 20170166685
    Abstract: The present invention relates to hydrophilized polyurethanes having a particularly high content of hydroxy-functional, unsaturated triglycerides, to a process for preparing polyurethane dispersions based thereon, to the use of the dispersions as binders in oxidatively drying coating materials having particularly high chemical resistance, and to articles and substrates coated with these coating materials.
    Type: Application
    Filed: December 6, 2016
    Publication date: June 15, 2017
    Inventors: Michael Ludewig, Maria Almato Guiteras, Pantea Nazaran, Eva Tejada
  • Patent number: 9650467
    Abstract: The invention relates to a cationically hydrophilized polyurethaneurea characterized in that it is synthesized from a) at least one aliphatic, araliphatic and/or cycloaliphatic polyisocyanate, b) polyols having a number-average molecular weight Mn?400 and ?6000 g/mol and a hydroxyl functionality of ?1.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 16, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Pantea Nazaran, Rolf Gertzmann, Juan Miguel Garcia Martinez, Maria Almato Guiteras, Eva Tejada
  • Patent number: 9624387
    Abstract: The invention is directed to a one-component (1K) coating system comprising an aqueous polyacrylate polymer dispersion and one or more compounds of elements of sub-groups 5 and/or 6 of the periodic table in which the particular element has an oxidation state of at least +4.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: April 18, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Rolf Gertzmann, Pantea Nazaran, Joan Miguel Garcia Martinez, Maria Almato Guiteras
  • Publication number: 20160137773
    Abstract: The invention relates to a cationically hydrophilized polyurethaneurea characterized in that it is synthesized from a) at least one aliphatic, araliphatic and/or cycloaliphatic polyisocyanate, b) polyols having a number-average molecular weight Mn?400 and ?6000 g/mol and a hydroxyl functionality of ?1.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 19, 2016
    Inventors: Pantea Nazaran, Rolf Gertzmann, Juan Miguel Garcia Martinez, Maria Almato Guiteras, Eva Tejada
  • Patent number: 9273210
    Abstract: The present invention relates to the use of an aqueous preparation for the coating of wood surfaces, characterized in that the aqueous preparation comprises: a hydroxyl-functional polyurethane-polyacrylate dispersion, apolyurethane dispersion, an at least partially hydrophilicized polyisocyanate and ?0 weight-% to ?10 weight-% of a matting agent, wherein the combined hydroxyl content of the hydroxyl-functional polyacrylate dispersion and the polyurethane dispersion is ?1% to ?12%. The invention further relates to a method of producing a coated wood surface, comprising the step of coating a wood surface with such an aqueous preparation and to a coated wood surface comprising an aqueous preparation whose use has been recited in the context of the use according to the invention.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 1, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Marc Claudius Schrinner, Christoph Irle, Martin Melchiors, Maria Almato Guiteras, Eva Tejada
  • Publication number: 20140057120
    Abstract: The present invention relates to the use of an aqueous preparation for the coating of wood surfaces, characterized in that the aqueous preparation comprises: a hydroxyl-functional polyurethane-polyacrylate dispersion, apolyurethane dispersion, an at least partially hydrophilicized polyisocyanate and ?0 weight-% to ?10 weight-% of a matting agent, wherein the combined hydroxyl content of the hydroxyl-functional polyacrylate dispersion and the polyurethane dispersion is ?1% to ?12%. The invention further relates to a method of producing a coated wood surface, comprising the step of coating a wood surface with such an aqueous preparation and to a coated wood surface comprising an aqueous preparation whose use has been recited in the context of the use according to the invention.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 27, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Marc Claudius Schrinner, Christoph Irle, Martin ` Melchiors, Maria Almato Guiteras, Eva Tejada
  • Publication number: 20140051800
    Abstract: An aqueous composition comprises a water-emulsifiable polyisocyanate (A), the water-emulsifiable polyisocyanate (A) being a reaction product of a polyisocyanate (B) with a compound (C) which contains at least one sulfonic acid group or its anion, and at least one isocyanate-reactive group. The composition further comprises a fragrant (D1) with at least one hydroxyl and/or aldehyde group. It has been found that the addition of the fragrant (D1) can mask unpleasant odors of the composition. This is particularly the case when organic co-solvents such as propylene glycol-n-butyl ether and/or 3-methoxy-1-butyl acetate are used. The storage stability and performance of the polyisocyanates are not affected by the addition of the fragrant (D1). Further aspects of the invention are the use of a composition according to the invention as an adhesive, a coating or an impregnating material and a substrate coated with a composition according to the invention.
    Type: Application
    Filed: April 17, 2012
    Publication date: February 20, 2014
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Robert Reyer, Martin Melchiors, Maria Almato Guiteras, Eva Tejada
  • Publication number: 20140017449
    Abstract: The invention is directed to a one-component (1K) coating system comprising an aqueous polyacrylate polymer dispersion and one or more compounds of elements of sub-groups 5 and/or 6 of the periodic table in which the particular element has an oxidation state of at least +4.
    Type: Application
    Filed: February 14, 2012
    Publication date: January 16, 2014
    Inventors: Rolf Gertzmann, Pantea Nazaran, Joan Miquel Garcia Martinez, Maria Almato Guiteras
  • Publication number: 20130344289
    Abstract: The invention is directed to a one-component (1K) coating system comprising an aqueous polyurethane and/or polyurethane-polyacrylate polymer dispersion and one or more compounds of elements of sub-groups 5 and/or 6 of the periodic table in which the particular element has an oxidation state of at least +4. The invention also relates to a method for improving the appearance of grained wood surfaces, the use of a coating system according to the invention for the coating of grained wood surfaces and a grained wood surface comprising a coating obtained by applying a coating system according to the invention and subsequent drying of the coating system.
    Type: Application
    Filed: January 2, 2012
    Publication date: December 26, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Rolf Gertzmann, Henricus Peerlings, Joan Miquel Garcia Martinez, Maria Almato Guiteras
  • Publication number: 20110306727
    Abstract: The present invention relates to aqueous polymer dispersions having a core-shell structure, to a method for the production thereof and to the use thereof as a coating agent.
    Type: Application
    Filed: January 13, 2010
    Publication date: December 15, 2011
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: Hans Georg Grablowitz, Rolf Gertzmann, Dirk Achten, Maria Almato Guiteras, Joan Miguel Garcia Martinez
  • Publication number: 20110236667
    Abstract: The invention relates to new aqueous polyurethane-modified alkyd resin dispersions, to their preparation and use as binders in paints and coatings.
    Type: Application
    Filed: June 6, 2011
    Publication date: September 29, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Harald Blum, Rolf Gertzmann, Christoph Irle, Maria Almato Guiteras, Juan Miguel Garcia Martinez
  • Patent number: 7906606
    Abstract: Solvent-containing formulations including NCO-containing prepolymers based on TDI isocyanurate polyisocyanates and diphenylmethane diisocyanates where some prepolymers are prepared using a polyetherdiol containing ethylene oxide blocks and having an ethylene oxide content of from 2 to 18% by weight, based on all the alkylene oxide units. The formulation have an NCO content of 1% to 7% by weight, a solids content of 20% to 70% by weight, a monomeric TDI content of less than 0.2% by weight and a monomeric methylenediphenyl diisocyanate content of less than 2% by weight. The solvent-containing formulations can be prepared in organic solvents by reacting at least one of A) a TDI component comprising TDI isocyanurate polyisocyanates and B) an MDI component comprising diphenylmethane diisocyanates with C) a polyetherdiol. The solvent-containing formulations can be used in moisture-curing coating compositions, adhesive bonds and/or seals with substrates.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: March 15, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Meike Niesten, Christoph Irle, Federico Comajuan, Maria Almató Guiteras, Amadeo Vicente
  • Publication number: 20080146748
    Abstract: The invention relates to new aqueous polyurethane-modified alkyd resin dispersions, to their preparation and use as binders in paints and coatings.
    Type: Application
    Filed: November 15, 2007
    Publication date: June 19, 2008
    Inventors: Harald Blum, Rolf Gertzmann, Christoph Irle, Maria Almato Guiteras, Juan Miguel Garcia Martinez