Patents Assigned to The Shepherd Color Company
  • Patent number: 10619025
    Abstract: There are very few violet or pink colored commercial pigments that display high heat stability, resistance to acidic conditions, or good lightfastness. This technology results in pigments that fall into the above color space, but display improved chemical and weathering stability. The pigments based of this technology have the molar ratio (A2O)x(BO)y(C2O5)z(DO3)w(EO2)v, where 2x+y+2z+w+v?100. Where A is Li or Li with one or more of Cu, Na, or K, where B is Co or Co with one or more of Ca, Cu, Fe, Mg, Mn, Ni, Sn, or Zn, where C is Nb, Sb, or combination thereof, where D is Mo, W or combination thereof, where E is Sn, Ti, Zr, or combination thereof. The above formulation may be modified with a dopant addition of Al, B, Ba, Bi, Ca, Ce, Cr, La, P, Pr, Si, Sr, Ta, V, or Y where the dopant concentration represents 5 atomic % or less of the total number of moles of components A+B+C+D+E.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: April 14, 2020
    Assignee: The Shepherd Color Company
    Inventor: William M. Yuhasz
  • Patent number: 10570288
    Abstract: The current technology is directed to red and red-shade violet pigments with an hexagonal ABO3 structure of the form Y(In, M)O3 in which M is substituted for In in the trigonal bipyramidal B site of the ABO3 structure, and where M is a mixture containing Co2+ and charge compensating ions, or M is a mixture containing Co2+ and charge compensating ions, as well as other aliovalent and isovalent ions.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: February 25, 2020
    Assignee: The Shepherd Color Company
    Inventors: Matthew C. Comstock, Andrew E. Smith
  • Patent number: 10202510
    Abstract: The present invention involves pigments derived from compounds with the LiSbO3-type or LiNbO3-type structures. These compounds possess the following formulations M1M5Z3, M1M2M4M5Z6, M1M32M5Z6, M1M2M3M6Z6, M12M4M6Z6, M1M5M6Z6, or a combination thereof. The cation M1 represents an element with a valence of +1 or a mixture thereof, the cation M2 represents an element with a valence of +2 or a mixture thereof, the cation M3 represents an element with a valence of +3 or a mixture thereof, the cation M4 represents an element with a valence of +4 or a mixture thereof, the cation M5 represents an element with a valence of +5 or a mixture thereof, and the cation M6 represents an element with a valence of +6 or a mixture thereof. The cation M is selected from H, Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Ru, Co, Ni, Cu, Ag, Zn, B, Al, Ga, In, Si, Ge, Sn, P, Sb, or Te.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 12, 2019
    Assignee: The Shepherd Color Company
    Inventor: William M. Yuhasz
  • Patent number: 9676927
    Abstract: This invention relates to products of aqueous and other chemical synthetic routes for encapsulation of a core material with an inorganic shell and finished compositions of a core-shell particulate material for application in thermoplastic, thermoset, and coatings resins prior to compounding or application or subsequent thermal processing steps. Disclosed is a composition of particles containing a shell of inorganic oxides or mixed-metal inorganic oxides and a core material of complex inorganic colored pigment, laser direct structuring additives, laser marking, or other beneficial metal oxides, metal compounds, or mixed-metal oxide materials, wherein the shell material is comprised of any single oxide or combination of oxides is taught. Preferred elements of composition for the shell are oxides and silicates of B, Ni, Zn, Al, Zr, Si, Sn, Bi, W, Mo, Cr, Mg, Mn, Ce, Ti, and Ba (or mixtures thereof).
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: June 13, 2017
    Assignees: The Shepherd Color Company, LPKF Laser & Electronics AG
    Inventors: Michael D. Musick, David Ziemnik, James P. White, Robin Alexander Krüger, Bernd Rösener, Malte Sebastian Fengler
  • Patent number: 9096442
    Abstract: Complex inorganic titanate pigments with low dopant levels (i.e., less than about 5%) exhibit coloristic and enhanced infrared (IR) reflectance characteristics that make them useful in formulating colors exhibiting high IR reflectivity. This characteristic is becoming increasingly useful as a way to keep exterior surfaces and articles cooler during exposure to direct sunlight. Achieving this can decrease energy (e.g., cooling/air conditioning) consumption and costs. Low-loaded titanates can boost IR reflectivity by 1 to 10% in selected visual color spaces. Paint compositions containing those low loaded titanate pigments and a method for providing a surface with high infrared reflectance utilizing those pigments are also disclosed.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: August 4, 2015
    Assignee: The Shepherd Color Company
    Inventors: James White, Doris Montgomery
  • Patent number: 9062216
    Abstract: A compound or a pigment comprising a compound where there is simultaneous substitution of more or more elements onto both the A and B sites of a pyrochlore lattice or a lattice related to a pyrochlore. The pigment comprises a compound with the formula of AyA?y?BxB?x?Zp. Elements A and A? have a valence of 1, 2, or 3; and are selected from the elements of groups 1, 2, 12, 13, 14, 15, and the first row of transition metals, excluding H, Pb, Cd, Hg, N, As, and Tl. Elements B and B? have a valence of 3, 4, 5, or 6; and are selected from the elements of the first, second, or third row of transition metals, groups 13, 14, and 15, excluding V, C, Pb, and Tl. Element Z is selected from O, F, N, a chalcogen, S, Se, hydroxide ion, and mixtures thereof.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 23, 2015
    Assignee: The Shepherd Color Company
    Inventors: Simon K. Boocock, Andrew E. Smith, Miroslav Trojan
  • Publication number: 20140261085
    Abstract: A compound or a pigment comprising a compound where there is simultaneous substitution of more or more elements onto both the A and B sites of a pyrochlore lattice or a lattice related to a pyrochlore. The pigment comprises a compound with the formula of AyA?y?BxB?x?Zp. Elements A and A? have a valence of 1, 2, or 3; and are selected from the elements of groups 1, 2, 12, 13, 14, 15, and the first row of transition metals, excluding H, Pb, Cd, Hg, N, As, and Tl. Elements B and B? have a valence of 3, 4, 5, or 6; and are selected from the elements of the first, second, or third row of transition metals, groups 13, 14, and 15, excluding V, C, Pb, and Tl. Element Z is selected from O, F, N, a chalcogen, S, Se, hydroxide ion, and mixtures thereof.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: The Shepherd Color Company
    Inventors: Simon K. Boocock, Andrew E. Smith, Miroslav Trojan
  • Publication number: 20130008346
    Abstract: Complex inorganic titanate pigments with low dopant levels (i.e., less than about 5%) exhibit coloristic and enhanced infrared (IR) reflectance characteristics that make them useful in formulating colors exhibiting high IR reflectivity. This characteristic is becoming increasingly useful as a way to keep exterior surfaces and articles cooler during exposure to direct sunlight. Achieving this can decrease energy (e.g., cooling/air conditioning) consumption and costs. Low-loaded titanates can boost IR reflectivity by 1 to 10% in selected visual color spaces. Paint compositions containing those low loaded titanate pigments and a method for providing a surface with high infrared reflectance utilizing those pigments are also disclosed.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Applicant: The Shepherd Color Company
    Inventors: James White, Doris Montgomery
  • Patent number: 8216352
    Abstract: A mixture of Zinc Oxides or Hydroxides with Aluminum Hydroxides and Vanadium Oxide (V2O5) co-reacts in high temperature aqueous slurry to form highly crystalline forms of Hydrotalcite, containing the Decavanadate ion as a source of corrosion inhibition. The subject compositions, free of hexavalent chromium, are highly effective in providing blister-free corrosion prevention in typical coil and aerospace grade epoxy primer and color coat combinations.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: July 10, 2012
    Assignee: The Shepherd Color Company
    Inventor: Simon K. Boocock
  • Patent number: 8192541
    Abstract: An inorganic pigment comprising tin; a divalent metal; niobium; and an oxysulfide, an oxyselenide, or oxysulfo-selenide.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: June 5, 2012
    Assignee: The Shepherd Color Company
    Inventor: Simon Boocock
  • Patent number: 8137646
    Abstract: A mixture of zirconium hydroxides or zirconium basic carbonate with vanadium oxide (V205) co-reacts in high temperature aqueous slurry to form respectively an amorphous material, believed to be based on a zirconium analog of a zeolite structure, and a solid solution of zirconium oxide with vanadium oxide. The subject compositions, free of hexavalent chromium, are highly effective in providing blister-free corrosion prevention in typical coil and aerospace grade epoxy primer and color coat combinations.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: March 20, 2012
    Assignee: The Shepherd Color Company
    Inventor: Simon Boocock
  • Patent number: 8025981
    Abstract: Sodalite is synthesized in the presence of a stoichiometric quantity of Permanganate ion. After thorough washing to remove trace salts the resulting pigment may be encapsulated with amorphous silica using the Iler process. The resulting pigment has enhanced acid stability and provides excellent corrosion protection on reactive metal substrates such as Aerospace Aluminum or Coil grade Hot-Dip Galvanized Steel.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: September 27, 2011
    Assignee: The Shepherd Color Company
    Inventor: Simon K. Boocock
  • Publication number: 20100289736
    Abstract: An electrophoretic medium comprises at least one electrically charged particle dispersed posed in a fluid. The electrically charged particle comprises an inorganic black pigment having a surface area of at least about 7 m2/g. Preferred pigments are magnetite and mixed metal oxides containing two or more of iron, chromium, nickel, manganese, copper and cobalt, for example copper iron manganese oxide spinel and copper chromium manganese oxide spinel. The inorganic black pigment may bear a polymer coating.
    Type: Application
    Filed: February 9, 2010
    Publication date: November 18, 2010
    Applicants: E INK CORPORATION, THE SHEPHERD COLOR COMPANY
    Inventors: Jason D. Feick, Michael D. Walls, Michael D. Musick
  • Patent number: 7528084
    Abstract: The present invention provides glass compositions and glass coatings that are lead-free and cadmium-free for use on glass substrates, particularly in automotive applications. The compositions of the present invention provide for chemically durable, blacker colors that are completely suitable for use in automotive glass windows. The compositions include tantalum oxide as a required component.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: May 5, 2009
    Assignee: The Shepherd Color Company
    Inventor: Hasan B. Emlemdi
  • Publication number: 20090092839
    Abstract: A mixture of zirconium hydroxides or zirconium basic carbonate with vanadium oxide (V205) co-reacts in high temperature aqueous slurry to form respectively an amorphous material, believed to be based on a zirconium analog of a zeolite structure, and a solid solution of zirconium oxide with vanadium oxide. The subject compositions, free of hexavalent chromium, are highly effective in providing blister-free corrosion prevention in typical coil and aerospace grade epoxy primer and color coat combinations.
    Type: Application
    Filed: March 25, 2008
    Publication date: April 9, 2009
    Applicant: The Shepherd Color Company
    Inventor: Simon Boocock
  • Publication number: 20090081467
    Abstract: A mixture of Zinc Oxides or Hydroxides with Aluminum Hydroxides and Vanadium Oxide (V2O5) co-reacts in high temperature aqueous slurry to form highly crystalline forms of Hydrotalcite, containing the Decavanadate ion as a source of corrosion inhibition. The subject compositions, free of hexavalent chromium, are highly effective in providing blister-free corrosion prevention in typical coil and aerospace grade epoxy primer and color coat combinations.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 26, 2009
    Applicant: SHEPHERD COLOR COMPANY
    Inventor: Simon Boocock
  • Publication number: 20090075113
    Abstract: Sodalite is synthesized in the presence of a stoichiometric quantity of Permanganate ion. After thorough washing to remove trace salts the resulting pigment may be encapsulated with amorphous silica using the Iler process. The resulting pigment has enhanced acid stability and provides excellent corrosion protection on reactive metal substrates such as Aerospace Aluminum or Coil grade Hot-Dip Galvanized Steel.
    Type: Application
    Filed: September 16, 2008
    Publication date: March 19, 2009
    Applicant: SHEPHERD COLOR COMPANY
    Inventor: Simon K. Boocock
  • Patent number: 7341964
    Abstract: The present invention provides glass compositions and glass coating systems for use on glass substrates in several industrial applications. It relates to a lead-free and cadmium-free glass enamel coating made primarily by utilizing at least one or more of lead-free and cadmium-free glass compositions comprising in weight percent from about 26% to about 63% SiO2, from about 2% to about 10.5% ZnO, from about 8% to about 20% B2O3, from about 0.1% to about 10% Bi2O3, up to about 12% Na2O, from about 0.1% to about 17% K2O, up to about 6% Li2O, from about 0.1% to about 22% of Ta2O5, from about 0.0% to about 22% of Nb2O5, up to about 8% from each of Al2O3, TiO2, ZrO2, BaO and SrO, from about 0.1% to about 7% Sb2O3, up to about 7% F2, up to about 4% from each of CaO, Mo2O3 and MgO, and from about 0.1% to about 4% of one or more of La2O3, Nd2O3, Pr2O3 and Ce2O3.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: March 11, 2008
    Assignee: Shepherd Color Company
    Inventor: Hasan B. Emlemdi
  • Patent number: 6758894
    Abstract: A black pigment substantially free of objectionable transition metal materials is disclosed. This pigment is particularly useful for coloring glass since the absence of the transition metal gives it excellent recycling properties. The pigment is an alkaline earth (preferably strontium) iron maganese oxide material as specifically defined the in the present invention.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: July 6, 2004
    Assignee: The Shepherd Color Company
    Inventor: Joel D. Houmes
  • Patent number: RE45382
    Abstract: An inorganic pigment comprising tin; a divalent metal; niobium; and an oxysulfide, an oxyselenide, or oxysulfo-selenide.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: February 24, 2015
    Assignee: The Shepherd Color Company
    Inventor: Simon Boocock