Patents by Inventor Elke Westhoff

Elke Westhoff 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: 20200208009
    Abstract: The present disclosure relates to two-component coating material compositions including a paint base component A and a curing component B. The paint base component A includes one or more polyols A1 selected from the group of polyols containing ester groups and which possess a hydroxyl number of 300 to 500 mg KOH/g and have a hydroxyl group functionality of greater than 2. The curing component B includes one or more polyisocyanates B1 having on average 2.4 to 5 NCO groups. The two-component coating material composition possesses a solids content of at least 96 wt %, and the molar ratio of the NCO groups in the curing component B to the acidic hydrogen atoms in the paint base component A is from 1:1.15 to 1:0.95. The disclosure further relates to a method for coating fiber-reinforced plastics and to a method for producing coated fiber-reinforced plastics, and to coating fiber-reinforced plastics.
    Type: Application
    Filed: July 20, 2018
    Publication date: July 2, 2020
    Inventors: Elke Westhoff, Henan Li, Markus Saedler, Andreas Dopp, Lea Fedeler
  • Patent number: 10294389
    Abstract: Disclosed herein is a thermally curable mixture, comprising at least one phosphonic diester (A), at least one diphosphonic diester (A), or at least one phosphonic diester and at least one diphosphonic diester (A); and at least one compound (B) which can be reacted by transesterification, transamidation, self-condensation of N-hydroxyalkylamino groups, self-condensation of N-alkoxyalkylamino groups, transacctalization of N-alkoxyalkylamino groups, acctalization of N-hydroxyalkylamino groups, or a combination thereof. Also disclosed is a process for making the thermally curable mixture, and a cured material comprising the product of thermally curing the mixture.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: May 21, 2019
    Assignee: BASF COATINGS GmbH
    Inventors: Andreas Poppe, Elke Westhoff, Beate Gebauer, Peter Mayenfels
  • Patent number: 10023764
    Abstract: Described are coating material compositions comprising an isocyanate group-containing component, a hydroxyl group-containing component, and a zinc (1-methylimidazole)bis(2-ethylhexanoate) complex. Also described is the use of a zinc (1-methylimidazole)bis(2-ethylhexanoate) complex as a catalyst system for the urethane reaction in coating material compositions.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: July 17, 2018
    Assignee: BASF Coatings GmbH
    Inventors: Bing Hsieh, Robert D. Coughlin, Ramanathan Ravichandran, Farouk Abi-Karam, Elke Westhoff, Peter Hoffmann, Bernadette Möller, Benedikt Schnier
  • Patent number: 9644111
    Abstract: Described are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl group-containing compound, (B) at least one polyisocyanate group-containing compound having free or blocked isocyanate groups, (D) at least one catalyst (D) based on a zinc-amidine complex which is preparable by reacting one or more zinc(II) biscarboxylates with an amidine of the formula (I) or with a mixture of two or more amidines of the formula (I) and (S) at least one monomeric aromatic optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a ?-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR?x(OR?)3-x) (II), and/or at least one structural unit —N(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m (III). Also described are multistage coating methods, and the use of the coating material compositions.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 9, 2017
    Assignee: BASF Coatings GmbH
    Inventors: Peter Hoffmann, Matthijs Groenewolt, Benedikt Schnier, Elke Westhoff
  • Patent number: 9353287
    Abstract: Disclosed are coating compositions comprising at least one hydroxyl-containing compound (A) and at least one isocyanato-containing compound (B), wherein one or more of the constituents of the coating composition comprise between 2.5 and 97.5 mol %, based on the entirety of structural units (I) and (II), of at least one structural unit of the formula (I) —N(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m??(I) and between 2.5 and 97.5 mol %, based on the entirety of structural units (I) and (II), of at least one structural unit of the formula (II) —Z—(X—SiR?x(OR?)3-x)??(II).
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 31, 2016
    Assignee: BASF Coatings GmbH
    Inventors: Matthijs Groenewolt, Andreas Poppe, Gunter Klein, Manuela Niemeier, Elke Westhoff, Wilfried Stubbe, Simone Hesener
  • Patent number: 9340703
    Abstract: The present invention relates to coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, and at least one catalyst (D) based on a zinc-amidine complex which is preparable by reaction of 1.0 moles of at least one zinc(II) biscarboxylate with 2.0 moles of at least one amidine where R5=hydrogen and R1, R2, R3, and R4 are each identical or different radicals, R1 and R3 being hydrogen or an alkyl radical or an aryl radical, and R2 and R4 being an alkyl radical or an aryl radical, characterized in that the coating material composition further comprises at least one monomeric aromatic, optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a ?-electron system.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: May 17, 2016
    Assignee: BASF Coatings GmbH
    Inventors: Peter Hoffmann, Elke Westhoff, Bernadette Moeller, Benedikt Schnier
  • Patent number: 9340638
    Abstract: The present invention relates to coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, and at least one catalyst (D) based on a zinc-amidine complex which is prepared by reaction of 1.0 moles of at least one zinc(II) biscarboxylate with less than 2.0 moles of at least one amidine where R5=hydrogen and R1, R2, R3, and R4 are each identical or different radicals, R1 and R3 being hydrogen or an alkyl radical or an aryl radical, and R2 and R4 being an alkyl radical or an aryl radical.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: May 17, 2016
    Assignee: BASF Coatings GmbH
    Inventors: Elke Westhoff, Peter Hoffmann, Bernadette Moeller, Benedikt Schnier
  • Patent number: 9206330
    Abstract: The invention relates to coating material compositions comprising an isocyanate group-containing component, a hydroxyl group-containing component, a zinc-imidazole-carboxylate complex and a monomeric aromatic carboxylic acid, and also to the use of a zinc-imidazole-carboxylate complex in the presence of a monomeric aromatic carboxylic acid as a catalyst system for the urethane reaction in coating material compositions.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: December 8, 2015
    Assignee: BASF Coatings GmbH
    Inventors: Elke Westhoff, Peter Hoffmann, Bernadette Möller, Benedikt Schnier
  • Patent number: 9139751
    Abstract: Disclosed are coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, at least one catalyst (D) based on a zinc-amidine complex which comprises the reaction product of 1.0 moles of at least one zinc(II) biscarboxylate with more than 2.0 moles of at least one amidine where R5=hydrogen and R1, R2, R3, and R4 are each identical or different radicals, R1 and R3 being hydrogen or an alkyl radical or an aryl radical, and R2 and R4 being an alkyl radical or an aryl radical, and at least one monomeric aromatic, optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a ?-electron system.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: September 22, 2015
    Assignee: BASF Coatings GmbH
    Inventors: Elke Westhoff, Peter Hoffmann, Bernadette Moeller, Benedikt Schnier
  • Publication number: 20150210886
    Abstract: Described are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl group-containing compound, (B) at least one polyisocyanate group-containing compound having free or blocked isocyanate groups, (D) at least one catalyst (D) based on a zinc-amidine complex which is preparable by reacting one or more zinc(II) biscarboxylates with an amidine of the formula (I) or with a mixture of two or more amidines of the formula (I) and (S) at least one monomeric aromatic optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a ?-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR?x(OR?)3-x) (II), and/or at least one structural unit —N(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m (III). Also described are multistage coating methods, and the use of the coating material compositions.
    Type: Application
    Filed: May 29, 2013
    Publication date: July 30, 2015
    Applicant: BASF Coatings GmbH
    Inventors: Peter Hoffmann, Matthijs Groenewolt, Benedikt Schnier, Elke Westhoff
  • Publication number: 20140322448
    Abstract: The present invention relates to coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, and at least one catalyst (D) based on a zinc-amidine complex which is preparable by reaction of 1.0 moles of at least one zinc(II) biscarboxylate with 2.0 moles of at least one amidine where R5=hydrogen and R1, R2, R3, and R4 are each identical or different radicals, R1 and R3 being hydrogen or an alkyl radical or an aryl radical, and R2 and R4 being an alkyl radical or an aryl radical, characterized in that the coating material composition further comprises at least one monomeric aromatic, optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a ?-electron system.
    Type: Application
    Filed: February 10, 2012
    Publication date: October 30, 2014
    Applicant: BASF COATINGS GMBH
    Inventors: Peter Hoffmann, Elke Westhoff, Bernadette Moeller, Benedikt Schnier
  • Patent number: 8865851
    Abstract: Disclosed is a moisture-curing coating composition based on aprotic solvents comprising a binder with a polyacrylate or polymethacrylate obtained using monomer (I) and a phosphorous- and nitrogen-containing catalyst. Also disclosed is a method of producing a multicoat finish using these coating compositions and also to the use of this method to coat interior or exterior bodywork components or to coat components for shipbuilding and aircraft construction or to coat components for household and electrical appliances or to coat plastics moldings or films.
    Type: Grant
    Filed: February 20, 2010
    Date of Patent: October 21, 2014
    Assignee: BASF Coatings GmbH
    Inventors: Peter Hoffmann, Benedikt Schnier, Elke Westhoff, Bernadette Möller
  • Publication number: 20140308451
    Abstract: The present invention relates to coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, and at least one catalyst (D) based on a zinc-amidine complex which is prepared by reaction of 1.0 moles of at least one zinc(II) biscarboxylate with less than 2.0 moles of at least one amidine where R5=hydrogen and R1, R2, R3, and R4 are each identical or different radicals, R1 and R3 being hydrogen or an alkyl radical or an aryl radical, and R2 and R4 being an alkyl radical or an aryl radical.
    Type: Application
    Filed: January 31, 2012
    Publication date: October 16, 2014
    Applicant: BASF COATINGS GMBH
    Inventors: Elke Westhoff, Peter Hoffmann, Bernadette Moeller, Benedikt Schnier
  • Publication number: 20140162074
    Abstract: The invention relates to coating material compositions comprising an isocyanate group-containing component, a hydroxyl group-containing component, a zinc-imidazole-carboxylate complex and a monomeric aromatic carboxylic acid, and also to the use of a zinc-imidazole-carboxylate complex in the presence of a monomeric aromatic carboxylic acid as a catalyst system for the urethane reaction in coating material compositions.
    Type: Application
    Filed: March 15, 2012
    Publication date: June 12, 2014
    Applicant: BASF COATINGS GMBH
    Inventors: Elke Westhoff, Peter Hoffmann, Bernadette Möller, Benedikt Schnier
  • Publication number: 20140161981
    Abstract: Disclosed are coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, at least one catalyst (D) based on a zinc-amidine complex which comprises the reaction product of 1.0 moles of at least one zinc(II) biscarboxylate with more than 2.0 moles of at least one amidine where R5=hydrogen and R1, R2, R3, and R4 are each identical or different radicals, R1 and R3 being hydrogen or an alkyl radical or an aryl radical, and R2 and R4 being an alkyl radical or an aryl radical, and at least one monomeric aromatic, optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a ?-electron system.
    Type: Application
    Filed: January 30, 2012
    Publication date: June 12, 2014
    Applicant: BASF COATINGS GMBH
    Inventors: Elke Westhoff, Peter Hoffmann, Bernadette Moeller, Benedikt Schnier
  • Patent number: 8658752
    Abstract: The invention relates to the use of partly silanized compounds based on polyisocyanate as crosslinking agents with heightened refractive index in curable coating compositions, more particularly in clearcoat materials for automotive finishing. The invention likewise relates to a coating composition which comprises these compounds as crosslinking agents, and to the use of the coating composition to produce a coating.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: February 25, 2014
    Assignee: BASF Coatings GmbH
    Inventors: Matthijs Groenewolt, Simone Hesener, Wilfried Stübbe, Manuela Niemeier, Elke Westhoff
  • Publication number: 20140023789
    Abstract: Disclosed are coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one compound (B) having isocyanate groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, said catalyst (D) comprising phosphorus. It is an aspect of the disclosed coating compositions that (i) one or more constituents of the coating composition contain hydrolyzable silane groups and (ii) the coating composition can be finally cured to a coating which has statistically distributed regions of an Si—O—Si network.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 23, 2014
    Applicant: BASF COATINGS GMBH
    Inventors: Matthijs Groenewolt, Andreas Poppe, Gunter Klein, Manuela Niemeier, Elke Westhoff, Wilfried Stubbe, Simone Hesener
  • Patent number: 8569438
    Abstract: Disclosed are coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one compound (B) having isocyanate groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, said catalyst (D) comprising phosphorus. It is an aspect of the disclosed coating compositions that (i) one or more constituents of the coating composition contain hydrolyzable silane groups and (ii) the coating composition can be finally cured to a coating which has statistically distributed regions of an Si—O—Si network.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: October 29, 2013
    Assignee: BASF Coatings GmbH
    Inventors: Matthijs Groenewolt, Andreas Poppe, Guenter Klein, Manuela Niemeier, Elke Westhoff, Wilfried Stuebbe, Simone Hesener
  • Publication number: 20120045586
    Abstract: The invention relates to moisture-curing coating compositions based on aprotic solvents, comprising (A) at least one binder having alkoxysilane groups and (B) at least one crosslinking catalyst, characterized in that said composition comprises as binder (A) at least one polyacrylate and/or poly-methacrylate which is obtainable using one or more ethylenically unsaturated monomers (a1) of the formula (I) with R=hydrogen or methyl radical, R?=hydrogen, alkyl or cycloalkyl, and R?=alkyl, cycloalkyl, aryl or aralkyl, it being possible for the carbon chain to be interrupted by nonadjacent oxygen groups, sulfur groups or groups NRa, with Ra=alkyl, cycloalkyl, aryl or aralkyl, and x=0 to 2, and as crosslinking catalyst at least one phosphorous- and nitrogen-containing catalyst (B).
    Type: Application
    Filed: February 20, 2010
    Publication date: February 23, 2012
    Applicant: BASF COATINGS GMBH
    Inventors: Peter Hoffmann, Benedikt Schnier, Elke Westhoff, Bernadette Möller
  • Publication number: 20110269897
    Abstract: The invention relates to the use of partly silanized compounds based on polyisocyanate as crosslinking agents with heightened refractive index in curable coating compositions, more particularly in clearcoat materials for automotive finishing. The invention likewise relates to a coating composition which comprises these compounds as crosslinking agents, and to the use of the coating composition to produce a coating.
    Type: Application
    Filed: June 25, 2009
    Publication date: November 3, 2011
    Applicant: BASF COATINGS GMBH
    Inventors: Matthijs Groenewolt, Simone Hesener, Wilfried Stubbe, Manuela Niemeier, Elke Westhoff