Enhanced invisible-fluorescent identification tags for materials
AssigneeUT-Battelle, LLC
InventorLinda A Lewis
Life of this patent
Estimating the term…
Abstract
A tag composition includes a naphthalocyanine tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, a binder for binding the tag to a surface of a material; and a solvent, wherein the tag component and the binder are dissolved in the solvent.
Claims32
A tag composition comprising:
- a. a tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, said tag component comprising a naphthalocyanine compound;
- b. a binder for binding said tag component to a surface of a material;
- and
- c. a solvent comprising a terpinene, wherein said tag component and said binder are dissolved in said solvent.
A tag composition comprising:
- a. a tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, said tag component comprising 2,3-naphthalocyanine bis(trihexylsilyloxide);
- b. a polystyrene binder for binding said tag component to a surface of a material;
- c. a solvent comprising α-terpinene, dimethyl sulfoxide, and acetone, wherein said tag component and said polystyrene binder are dissolved in said solvent;
- and
- d. a light-stabilizing additive comprising at least one additive selected from the group consisting of an ultraviolet light absorber, a hindered amine light stabilizer, a singlet oxygen inhibitor, and a singlet oxygen selective trap.
A tagged article comprising a material having an invisible-fluorescent identification tag disposed on a surface thereof, said tag comprising a tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, and a light-stabilizing additive selected from the group consisting of a hindered amine light stabilizer, a singlet oxygen inhibitor, and a singlet oxygen selective trap, said tag component comprising a naphthalocyanine compound, and a binder for binding said tag component to said surface of said material.
A tag composition comprising:
- a. a tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, said tag component comprising a naphthalocyanine compound;
- b. a binder for binding said tag component to a surface of a material;
- and
- c. a solvent, wherein said tag component and said binder are dissolved in said solvent;
- and
- d. a hindered amine light stabilizer.
A tag composition comprising:
- a. a tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, said tag component comprising a naphthalocyanine compound;
- b. a binder for binding said tag component to a surface of a material;
- and
- c. a solvent, wherein said tag component and said binder are dissolved in said solvent;
- and
- d. a composition comprising benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-, C7-9-branched and linear alkyl esters, and 1-methoxy-2-propylacetate.
A tag composition comprising:
- a. a tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, said tag component comprising a naphthalocyanine compound;
- b. a binder for binding said tag component to a surface of a material;
- and
- c. a solvent, wherein said tag component and said binder are dissolved in said solvent;
- and
- d. a singlet oxygen inhibitor.
A tag composition comprising:
- a. a tag component that is invisible in light of the visible spectrum and which emits fluorescent light in a non-visible spectrum under a non-visible excitation energy, said tag component comprising a naphthalocyanine compound;
- b. a binder for binding said tag component to a surface of a material;
- and
- c. a solvent, wherein said tag component and said binder are dissolved in said solvent;
- and
- d. a singlet oxygen selective trap.
Dependencies are inferred from the claim text.