Patents by Inventor Gunter Kaupp

Gunter Kaupp 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: 11958979
    Abstract: This invention deals with effect pigment mixture comprising platelet-like aluminum effect pigments obtained by grinding of aluminum or aluminum based alloy shot and silvery pearlescent pigments, wherein the silvery pearlescent pigments are taken from the group consisting of: a) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of an iron-oxide with Fe(II)-ions, b) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of titanium suboxide or a pearlescent pigment comprising a substrate with a high-refractive index with n>1.8 layer, which comprises or consists of a titanium suboxide that is optionally coated with a high-refractive index layer with n>1.8, c) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: April 16, 2024
    Assignee: Eckart GmbH
    Inventors: Carolin Brendel, Klaus Greiwe, Robert Maul, Oliver Bedford, Gunter Kaupp
  • Publication number: 20230295443
    Abstract: The present invention is directed to effect pigments with solvochromic properties. These effect pigments have a structure comprising a substrate in platelet form and a coating applied to the substrate, wherein the coating comprises: optionally a layer (1) comprising or consisting of at least one of tin oxide, tin hydroxide and/or tin oxide hydrate, a layer (2) comprising at least one of metal oxide, metal hydroxide and/or metal oxide hydrate, and a layer (3) comprising at least one of metal oxide, metal hydroxide and/or metal oxide hydrate, wherein the layers (2) and (3) comprise in their metal oxide, metal hydroxide and/or metal oxide hydrate in a majority two different metal ions from the group consisting of Ti, Fe, Sn or Zr and a further spacer layer (4) being located in between layers (2) and (3), wherein layer (4) has a porous structure comprising cavities and connectors.
    Type: Application
    Filed: July 22, 2021
    Publication date: September 21, 2023
    Inventors: Michael Grüner, Günter Kaupp, Miriam Malz
  • Publication number: 20220363907
    Abstract: This invention deals with effect pigment mixture comprising platelet-like aluminum effect pigments obtained by grinding of aluminum or aluminum based alloy shot and silvery pearlescent pigments, wherein the silvery pearlescent pigments are taken from the group consisting of: a) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of an iron-oxide with Fe(II)-ions, b) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of titanium suboxide or a pearlescent pigment comprising a substrate with a high-refractive index with n>1.8 layer, which comprises or consists of a titanium suboxide that is optionally coated with a high-refractive index layer with n>1.8, c) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.
    Type: Application
    Filed: July 5, 2022
    Publication date: November 17, 2022
    Inventors: Carolin Brendel, Klaus Greiwe, Robert Maul, Oliver Bedford, Gunter Kaupp
  • Patent number: 11421111
    Abstract: This invention deals with effect pigment mixture comprising platelet-like aluminum effect pigments obtained by grinding of aluminum or aluminum based alloy shot and silvery pearlescent pigments, wherein the silvery pearlescent pigments are taken from the group consisting of: a) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of an iron-oxide with Fe(II)-ions, b) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of titanium suboxide or a pearlescent pigment comprising a substrate with a high-refractive index with n>1.8 layer, which comprises or consists of a titanium suboxide that is optionally coated with a high-refractive index layer with n>1.8, c) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: August 23, 2022
    Assignee: Eckart GmbH
    Inventors: Carolin Brendel, Klaus Greiwe, Robert Maul, Oliver Bedford, Günter Kaupp
  • Publication number: 20220145082
    Abstract: This invention deals with effect pigment mixture comprising platelet-like aluminum effect pigments obtained by grinding of aluminum or aluminum based alloy shot and silvery pearlescent pigments, wherein the silvery pearlescent pigments are taken from the group consisting of: a) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of an iron-oxide with Fe(II)-ions, b) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.8, which comprises or consists of titanium suboxide or a pearlescent pigment comprising a substrate with a high-refractive index with n>1.8 layer, which comprises or consists of a titanium suboxide that is optionally coated with a high-refractive index layer with n>1.8, c) pearlescent pigments comprising a transparent substrate which is coated with a high-refractive index layer with n>1.
    Type: Application
    Filed: April 9, 2020
    Publication date: May 12, 2022
    Inventors: Carolin Brendel, Klaus Greiwe, Robert Maul, Oliver Bedford, Günter Kaupp
  • Patent number: 11299636
    Abstract: The invention relates to effect pigments comprising artificial platelet-shaped substrates which have at least one optically active coating, where the effect pigments have a volume-averaged cumulative undersize distribution curve with the characteristic numbers D10, D50 and D90, said cumulative undersize distribution curve having a span ?D of 0.7-1.4, and the span ?D being calculated in accordance with formula (I): ?D=(D90?D10)/D50??(I), and the average thickness of the artificial platelet-shaped substrates being 500 nm to 2000 nm.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: April 12, 2022
    Assignee: Eckart GmbH
    Inventors: Günter Kaupp, Ulrich Schmidt, Dirk Schumacher, Ralph Schneider
  • Patent number: 11230643
    Abstract: Pearlescent pigments including a largely transparent platelet-shaped substrate having a density ?S and at least one optically active coating having a density ?M, the substrate having an average size d50 of 3 to 8 ?m and an average height hS of 40 to 110 nm. The disclosure further relates to a method for producing the pearlescent pigments, and also to the use thereof.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: January 25, 2022
    Assignee: ECKART GMBH
    Inventors: Michael Gruener, Ulrich Schmidt, Günter Kaupp, Peter Krueger, Jens Depner, Katrin Steinbach, Ralph Schneider, Frank Henglein
  • Patent number: 11202739
    Abstract: The present invention relates to red effect pigments including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one of metal oxide, metal hydroxide or metal oxide hydrate, the metal ions of the metal oxide, metal hydroxide and/or metal oxide hydrate comprise at least two different metal ions selected from the group of metals consisting of Fe, Sn, Ti and Zr, and to a process for production thereof and to the use of the red effect pigments.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 21, 2021
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Patent number: 10947391
    Abstract: The present invention relates to gold-colored effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the gold-colored effect pigment.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 16, 2021
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Patent number: 10934436
    Abstract: The invention relates to a transparent effect pigment which includes a non-metallic platelet-shaped substrate and a coating applied thereto, wherein the coating has a spacer layer. The invention further relates to a method for the production, as well as the use, of the transparent effect pigment.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 2, 2021
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Publication number: 20210017404
    Abstract: This invention deals with effect pigment comprising a colored hectorite which is produced by ion exchange process of an initial hectorite with a cationic dye, wherein the initial hectorite can be represented by the formula Kz/n[LixMg(3.0?(x+y)?ySi4O10F2]??(I); wherein n is the charge of K and z=x+2y with 0.2<z<0.8; x=0-0.8; y=0-0.4; K is a cation chosen from a first group consisting of Li+, Na+, K+, NH4+, Rb+, Cs+, Mg2+, Ca2+, Ba2+ or mixtures thereof or from a second group consisting of alkylammonium salts with 2 to 8 C-atoms, wherein the alkyl can be branched or linear, or from a mixture of cations from the first and the second group and represents not occupied octahedral lattice sites. Furthermore, these colored hectorites can have a coating thereon comprising at least one layer with a high index of refraction >1.8 or a semitransparent metal and optionally an outer protective layer.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Inventors: Michael Grüner, Günter Kaupp, Josef Breu, Josef Hausner
  • Patent number: 10799432
    Abstract: The invention relates to an absorbent effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the absorbent effect pigment.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: October 13, 2020
    Assignee: Eckart GmbH
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Patent number: 10759941
    Abstract: The invention relates to a metal effect pigment including a metallic substrate in platelet form and a coating applied thereto, wherein the coating includes a spacer layer. The invention further relates to a process for production of and to the use of the metal effect pigment.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 1, 2020
    Assignee: Eckart GmbH
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Publication number: 20200009023
    Abstract: The invention relates to an absorbent effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the absorbent effect pigment.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 9, 2020
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Patent number: 10391043
    Abstract: The invention relates to an absorbent effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the absorbent effect pigment.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 27, 2019
    Assignee: ECKART GMBH
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Patent number: 10125261
    Abstract: The invention relates to pearlescent pigments comprising a largely transparent platelet-shaped synthetic substrate having a density ?S and at least one optically active coating having a density ?M, the substrate having an average size d50 from a range from 2.0 ?m to 8.0 ?m and an average height hS from a range from 40 nm to 110 nm and the total lead content of the pearlescent pigments is ?10 ppm. The invention further relates to a method for producing the pearlescent pigments, and also to the use thereof.
    Type: Grant
    Filed: October 10, 2010
    Date of Patent: November 13, 2018
    Assignee: ECKART GMBH
    Inventors: Ulrich Schmidt, Michael Gruner, Dirk Schumacher, Gunter Kaupp, Barbara Mendler
  • Publication number: 20180155550
    Abstract: The invention relates to a metal effect pigment including a metallic substrate in platelet form and a coating applied thereto, wherein the coating includes a spacer layer. The invention further relates to a process for production of and to the use of the metal effect pigment.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 7, 2018
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Publication number: 20170355855
    Abstract: The present invention relates to gold-colored effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the gold-colored effect pigment.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 14, 2017
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Publication number: 20170348202
    Abstract: The present invention relates to red effect pigments including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one of metal oxide, metal hydroxide or metal oxide hydrate, the metal ions of the metal oxide, metal hydroxide and/or metal oxide hydrate comprise at least two different metal ions selected from the group of metals consisting of Fe, Sn, Ti and Zr, and to a process for production thereof and to the use of the red effect pigments.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 7, 2017
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider
  • Publication number: 20170348201
    Abstract: The invention relates to an absorbent effect pigment including a nonmetallic substrate in platelet form and a coating applied thereto, wherein the coating includes at least one spacer layer. The invention further relates to a process for production of and to the use of the absorbent effect pigment.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 7, 2017
    Inventors: Michael Grüner, Günter Kaupp, Ralph Schneider