Patents by Inventor Burkhard Schreiber

Burkhard Schreiber 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: 20230250298
    Abstract: The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C13 NMR MAS relaxation measurements, the relaxation of the 13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T1s and a long average relaxation time T1l, and T1l being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of Tmax=100 to 150° C. and an enthalpy ?H associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5° C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.
    Type: Application
    Filed: January 30, 2023
    Publication date: August 10, 2023
    Inventor: Burkhard Schreiber
  • Patent number: 11702552
    Abstract: The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C13 NMR MAS relaxation measurements, the relaxation of the 13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T1S and a long average relaxation time T1l, and T1l being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of Tmax=100 to 150° C. and an enthalpy ?H associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5° C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: July 18, 2023
    Assignee: ECKART GmbH
    Inventor: Burkhard Schreiber
  • Publication number: 20210108090
    Abstract: The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C13 NMR MAS relaxation measurements, the relaxation of the 13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T1S and a long average relaxation time T1l, and T1l being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of Tmax=100 to 150° C. and an enthalpy ?H associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5° C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 15, 2021
    Inventor: Burkhard Schreiber
  • Patent number: 10899934
    Abstract: The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C13 NMR MAS relaxation measurements, the relaxation of the 13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T1S and a long average relaxation time T1I, and T1I being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of Tmax=100 to 150° C. and an enthalpy ?H associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5° C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 26, 2021
    Assignee: ECKART GMBH
    Inventor: Burkhard Schreiber
  • Publication number: 20200181423
    Abstract: The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C13 NMR MAS relaxation measurements, the relaxation of the 13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T1S and a long average relaxation time T1I, and T1I being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of Tmax=100 to 150° C. and an enthalpy ?H associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5° C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.
    Type: Application
    Filed: March 30, 2017
    Publication date: June 11, 2020
    Inventor: Burkhard Schreiber
  • Publication number: 20100095868
    Abstract: The invention relates to coated pearlescent pigments, whereby the coating covers the pearlescent pigments and comprises uncured, however, chemically cross-linkable and/or oligomeric and/or polymeric binding agents that can be cross-linked by heat, IR radiation, UV radiation and/or electron rays. The invention also relates to a method for producing the coated pearlescent pigments and to the use thereof. The invention additionally relates to a coating composition and to a coated article.
    Type: Application
    Filed: June 23, 2006
    Publication date: April 22, 2010
    Inventors: Günter Kaupp, Ulrich Schmidt, Burkhard Schreiber, Alexander Albrecht
  • Publication number: 20090264575
    Abstract: The invention relates to metal pigments comprising a coating. The coating surrounds the metal pigments and comprises cross-linkable oligomer and/or polymer binding agent(s) which are chemically cross-linkable and/or active under the influence of heat, IR radiation, UV radiation and/or electron radiation. The coated metal pigments are embodied in the form of powder, which has a particle size d50 of less than 190 ?m, and are resistant to corrosion after hardening in a coating powder. The invention further relates to a coating composition, to a method for the production of the coated metal pigments, in addition to the use thereof.
    Type: Application
    Filed: December 23, 2004
    Publication date: October 22, 2009
    Inventors: Frank Henglein, Burkhard Schreiber, Alexander Albrecht