Materials and methods utilizing a temporary visual indicator
First Claim
1. A composition for human or animal use comprising:
- (a) a spray or lotion for application to a body surface of the animal or human;
(b) an indicator for which a change of pH from a first pH to a second pH causes either (i) a change from one color to another color, or (ii) a change from colorless to a color, or (iii) a change from a color to colorless; and
(c) a pH-modifying substance in an amount sufficient to establish the pH of the composition at said first pH and which evaporates or degrades thereby causing the pH to change to said second pH.
2 Assignments
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Accused Products
Abstract
This invention relates to novel compositions containing temporary visual indicators and methods for using these compositions. Specifically, this invention relates to a sunscreen composition containing an indicator that is visible when the substance is applied to the skin, but becomes invisible shortly after application. The continued presence of the indicator allows the indicator to be reactivated temporarily to the visible form so that a user can verify the presence of the sunscreen. The visible indicator ensures that the sunscreen is applied evenly and completely to the area to be protected, but becomes invisible so as not to interfere with the action of the sunscreen or discolor the skin.
62 Citations
57 Claims
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1. A composition for human or animal use comprising:
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(a) a spray or lotion for application to a body surface of the animal or human; (b) an indicator for which a change of pH from a first pH to a second pH causes either (i) a change from one color to another color, or (ii) a change from colorless to a color, or (iii) a change from a color to colorless; and (c) a pH-modifying substance in an amount sufficient to establish the pH of the composition at said first pH and which evaporates or degrades thereby causing the pH to change to said second pH. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A composition comprising:
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(a) a first component selected from a group consisting of paints, lacquers, sealants, protectants, polishes, varnishes, herbicides, pesticides and fertilizers; (b) an indicator for which a change of pH from a first pH to a second pH causes either (i) a change from one color to another color, or (ii) a change from colorless to a color, or (iii) a change from a color to colorless; and (c) a pH-modifying substance in an amount sufficient to establish the pH of the composition at said first pH and which evaporates or degrades thereby causing the pH to change to said second pH. - View Dependent Claims (9, 10)
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11. A cosmetic composition which is applied to the skin to modify the effects of solar radiation, wherein said composition comprises:
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(a) a first ingredient which, when applied to the skin and exposed to air or sunlight, changes its chemical form, thereby causing a change in pH of the composition; and (b) a second ingredient which gives a visual indication of a pH change of the composition. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A sunscreen composition, comprising:
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a component capable of protecting human skin from exposure to harmful ultraviolet radiation; and a temporary visual indicator capable of changing color from a color visible to a human eye, upon application to human skin to ensure that the sunscreen is applied evenly and completely to areas to be protected, to a color indicator that is not substantially visible to the eye upon application and distribution to the skin.
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19. A sunscreen composition for application to human skin, comprising:
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a compound for protecting the skin from solar radiation; and a temporary visual indicator that provides a non-white appearance when applied to the skin, the composition disappearing through evaporation in less than about two minutes. - View Dependent Claims (20, 21, 22)
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23. A sunscreen composition for application to human skin, comprising:
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a compound for protecting the skin from solar radiation; a volatile base for adjusting the pH of the composition, the base evaporating once applied to the skin; and a temporary visual indicator that provides a non-white appearance when applied to the skin, the composition disappearing during evaporation of the base. - View Dependent Claims (24)
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25. A sunscreen composition for application to human skin, the composition having a pH suitable for application to the skin, comprising:
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a compound for protecting the skin from solar radiation; and a temporary visual indicator that provides a non-white color when applied to the skin, the pH changing after application to the skin whereby the visual indicator changes to a second color after a period of time between about fifteen seconds and two minutes. - View Dependent Claims (26)
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27. A sunscreen composition for application to human skin, the composition having a pH suitable for application to the skin, comprising:
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a compound for protecting the skin from solar radiation; a volatile base for adjusting the composition to the pH, the base evaporating once applied to the skin; and a temporary visual indicator that provides a non-white color when applied to the skin, the pH changing after application to the skin through evaporation of the base whereby the visual indicator changes to a second color after a period of time between about fifteen seconds and two minutes.
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28. A sunscreen composition for application to human skin, the composition having a pH suitable for application to the skin, comprising:
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a compound for protecting the skin from solar radiation; a volatile base for adjusting the composition to the pH, the base evaporating once applied to the skin; and a temporary visual indicator that provides a non-white color when applied to the skin, the pH changing after application to the skin through evaporation of the base whereby the composition disappears after a period of time between about fifteen seconds and two minutes.
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- 29. A composition for application to human skin, comprising a sunscreen compound and at least one water-soluble dye that imparts a non-white color to the sunscreen composition, the composition evaporating after application on the skin and becoming invisible.
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38. A method of applying sunscreen composition to ensure uniform application and coverage to skin, comprising the steps of:
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providing a water soluble dye that is visible to human eye; and applying the composition and the dye to the skin to ensure that the sunscreen composition is applied evenly and uniformly, the dye becoming colorless through evaporation after application to the skin.
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- 39. A composition for application to human skin, comprising a sunscreen compound and at least one water-soluble dye that imparts a non-white color to the sunscreen composition, the composition becoming invisible after application on the skin.
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47. A composition for application to human skin, comprising a sunscreen compound, water and at least one water-soluble dye that imparts a non-white color to the sunscreen composition, the composition becoming invisible after application on the skin and exposure to carbon dioxide.
- 48. A composition for application to human skin, comprising a sunscreen compound, water, a base for adjusting the composition to a pH suitable for human skin, prior to application thereon, and at least one water-soluble dye that imparts a non-white color to the sunscreen composition, wherein carbon dioxide adjusts the pH of the composition such that the composition changes color after application to the skin.
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54. A sunscreen composition comprising:
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one or more sunscreen ingredients; and at least one water soluble dye which imparts to the composition a color, other than white, and which is visible after the composition is spread on human skin but which substantially disappears when rubbed into the skin.
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55. A sunscreen composition comprising:
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one or more sunscreen ingredients; and at least one water soluble dye which imparts to the composition a color, other than white, and which is visible after the composition is spread on human skin but which loses its color when rubbed into the skin.
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56. A sunscreen composition comprising:
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one or more sunscreen ingredients; and at least one water soluble dye which imparts to the composition a color, other than white, and which is visible when initially applied on human skin but which loses its color when distributed over the skin.
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57. A sunscreen composition comprising:
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one or more sunscreen ingredients; and at least one water soluble which imparts to the composition a color, other than white, and which is visible when initially applied on human skin but which substantially disappears when distributed over the skin.
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Specification