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US 8,506,695 B2Granted
Coating compositions
AssigneeHewlett-Packard Development Company, L.P.
InventorsMolly L. Hladik, Mehrgan Khavari, Cari L. Dorsh
Life of this patent
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Abstract
Coating compositions and industrial packages including the coating compositions are disclosed.
Claims16
A coating composition, comprising:
- a matrix material having an activator dissolved therein;
- and
- particles of color former dispersed in the matrix material, wherein the color former is not soluble in the matrix material at room temperature and the activator reacts with the color former when mixed therewith to change the color of the color former,
- wherein the composition has a viscosity sufficiently low to accommodate any of flexographic printing and offset printing;
- and
- wherein said composition does not comprise an antenna dye.
3 more elements
A coating composition, comprising:
- a matrix material having an activator dissolved therein;
- and
- particles of color former dispersed in the matrix material, wherein the color former is not soluble in the matrix material at room temperature and the activator reacts with the color former when mixed therewith to change the color of the color former,
- wherein the activator and the color former do not mix until the matrix material exceeds a first temperature and a first pressure;
- wherein the first temperature is above about 120° C.;
- wherein the first pressure is above about 500 psi;
- wherein the color former is 4,4′ dihydroxydiphenyl sulfone.
4 more elements
A coating composition, comprising:
- a matrix material having an activator dissolved therein;
- and
- particles of a color former dispersed in the matrix material, wherein the color former is not soluble in the matrix material at room temperature,
- wherein one of the following is present:
- the matrix material does not flow until above about 150° C. and at above about 500 psi, the color former does not melt below about 120° C., and a combination thereof;
- wherein the color former is 4,4′ dihydroxydiphenyl sulfone.
3 more elements
Dependencies are inferred from the claim text.