Tamper evident paint having microcapsules containing signal indicators
First Claim
1. A paint made by a process of:
- mixing a signal indicator in a precursor material;
microencapsulating said precursor material to form microcapsules containing said precursor material dispersed within a carrier;
mixing a first predetermined amount of said microcapsule carrier with a second predetermined amount of a latex base tint to form a paint composition.
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Accused Products
Abstract
A method of providing a tamper evident paint comprising microcapsules enclosing signal indicators including dyes or odors which provide evidence of mechanical tampering after scratching or aggressively handling of a painted surface. An alternate embodiment of the tamper evident paint includes a microcapsule containing a magenta dye which stains the skin of a tamperor and can be seen when a resin solution is applied to the skin. Another embodiment includes a microcapsule containing a genetian violet dye dispersion which stains a tamperor'"'"'s skin and is very difficult to remove. A further embodiment includes a microcapsule containing a fluorescent dye dispersion which attaches to the tamperor'"'"'s skin and becomes visible under an ultraviolet light.
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Citations
25 Claims
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1. A paint made by a process of:
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mixing a signal indicator in a precursor material;
microencapsulating said precursor material to form microcapsules containing said precursor material dispersed within a carrier;
mixing a first predetermined amount of said microcapsule carrier with a second predetermined amount of a latex base tint to form a paint composition. - View Dependent Claims (2, 3, 4, 5)
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6. A method of manufacturing a visual color changing tamper evident paint comprising the steps of:
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providing a dye precursor;
mixing said dye precursor with a paraffin oil to make a 10% by weight dye precursor solution;
microencapsulating said dye precursor solution to form a slurry having 10-20 micron microcapsules in a water slurry having approximately 60% microcapsules by weight concentration in water;
mixing approximately 300 mg of said microcapsule slurry per gram of a latex base tint forming a composition; and
mixing approximately 100 mg of a phenolic resin per gram of said composition to form said tamper evident paint. - View Dependent Claims (7, 8, 9)
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10. A method of manufacturing a latent color development tamper evident paint comprising the steps of:
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providing a dye precursor;
mixing said dye precursor with a paraffin oil to make a 10% by weight dye precursor solution;
microencapsulating said dye precursor solution to form a slurry having 10-20 micron diameter microcapsules in a water slurry having approximately 60% microcapsules by weight concentration in water; and
mixing approximately 300 mg of said microcapsule slurry per gram of a latex base tint forming a composition. - View Dependent Claims (11, 12, 13)
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14. A method of manufacturing a visual skin marking tamper evident paint comprising the steps of:
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providing a dye precursor;
mixing said dye precursor with a mineral oil to make a 40% by weight dye dispersion;
microencapsulating said dye dispersion to form a powder having approximately 100 micron diameter microcapsules in said powder;
adding approximately 10 mg of water to each gram of a latex base tint to form a diluted latex base tint; and
mixing approximately 300 mg of said microcapsule powder per gram of diluted latex base tint forming said tamper evident paint. - View Dependent Claims (15, 16, 17)
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18. A method of manufacturing a fluorescent stain marking tamper evident paint comprising the steps of:
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providing an optical brightener dye;
mixing said optical brightener dye with a mineral oil to make a 10% optical brightener by weight dye dispersion;
microencapsulating said optical brightener dye dispersion to form a powder having approximately 100 micron diameter microcapsules in said powder;
adding approximately 10 mg of water to each gram of a latex base tint to form a diluted latex base tint; and
mixing approximately 300 mg of said microcapsule powder per gram of diluted latex base tint forming said tamper evident paint. - View Dependent Claims (19, 20, 21)
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22. A method of manufacturing an odor generating tamper evident paint comprising the steps of:
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providing a scented oil precursor;
mixing said scented oil with a mineral oil to make a 40% by weight scented solution;
microencapsulating said scented solution to form a powder having approximately 100 micron diameter microcapsules in said powder;
adding approximately 10 mg of water to each gram of a latex base tint to form a diluted latex base tint; and
mixing approximately 300 mg of said microcapsule powder per gram of diluted latex base tint to form said odor generating tamper evident paint. - View Dependent Claims (23, 24, 25)
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Specification