Bismuth, Vanadium, Molybdenum, Or Tungsten Compound Containing (bi, V, Mo, Or W) Patents (Class 106/479)
  • Patent number: 4772331
    Abstract: Colored flaky colored pigments are obtained by uniformly adhering a finely divided color pigment onto a flaky substrate by the use of an high molecular weight organic compound as a binder.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: September 20, 1988
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Tamio Noguchi, Takaji Watanabe
  • Patent number: 4769079
    Abstract: A water-insoluble pigment comprising a complex of an inorganic water-insoluble anion exchange material and a water-soluble dye is disclosed. The anion exchange material may be represented by the general formula:[M.sub.1-x.sup.a Q.sub.x.sup.a+1 O.sub.y (OH).sub.z ](A.sup.-1).sub.d (A.sup.-2).sub.e (A.sup.-3).sub.f (A.sup.-4).sub.g.nH.sub.2 Owherein M is a metal element or elements each with a positive valence of a; Q is a metal element or elements each with a positive valence of a+1; a is 2, 3, 4 or 5; A.sup.-1, A.sup.-2, A.sup.-3, and A.sup.-4 are each one or more exchangeable anions each having a negative valence of 1, 2, 3 and 4, respectively; x is 0<x.ltoreq.0.5; and n, y, z, d, e, f, and g are real numbers greater than or equal to zero and satisfy the following:2y+z=a0<d+2e+3f+4g.ltoreq.x0.ltoreq.n.ltoreq.10provided that when y=0, a is not equal to 2.
    Type: Grant
    Filed: June 20, 1986
    Date of Patent: September 6, 1988
    Assignee: The Dow Chemical Company
    Inventors: Howard W. Clark, Tracy E. Chapman, Ronald L. Yates