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US 7,429,294 B2Granted
Color compositions
AssigneeBoard of Regents, The University of Texas System
InventorsRussell Chianelli, Lori A. Polette
Life of this patent
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Abstract
The present invention includes a paint or coating composition comprising an organic pigment or dye complexed to the surface of a layered or fibrous inorganic clay. A wide variety of paint colors can be obtained by varying the pH during the preparation as well as by varying the synthesis conditions and changing particle size of the clay. The paint has unprecedented stability.
Claims33
A composition comprising:
- a) a molecular derivative of indigo;
- and
- b) a fibrous clay.
A composition comprising:
- a) a molecular derivative of indigo, wherein the molecular derivative of indigo has the formula:
- wherein R1-R8 are individually H, CH3,CH2CH3, F, Cl, Br, I, CN, OH, SH, OCH3 or OCH2CH3;
- R9-R11 are individually SiO3,SiOH or H20;
- Y is N, O, S, or Se;
- X is O or S;
- M(n+) is Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Pt, Pd or Zn;
- and n is 1, 2, 3 or 4;
- and
- b) a fibrous clay.
6 more elements
A method of producing a composition comprising:
- a) obtaining a molecular derivative of indigo;
- b) combining said molecular derivative of indigo with a fibrous clay to form a coating composition, wherein said molecular derivative of indigo is present at 0.01% to 20% by weight;
- and
- c) heating said composition at between 100°C. and 300°C.
1 more element
A composition comprising:
- a) indigo or a molecular derivative of indigo;
- and
- b) a sepiolite clay.
A method of producing a composition comprising:
- a) obtaining indigo or a molecular derivative of indigo;
- b) combining said indigo or molecular derivative of indigo with a sepiolite clay to form a composition, wherein said indigo or molecular derivative of indigo is present at 0.0 1% to 20% by weight;
- and
- c) heating said composition at between 100°C. and 300°C.
1 more element
Dependencies are inferred from the claim text.