US5352282A
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US
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Color changing compositions
Assignee: Crayola LLC
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Filing: 1993-06-16
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Granted: 1994-10-04
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Expires: 2013-06-16
Abstract
Abstract A multiple coloring composition system is disclosed whose coloring effect is changed upon treatment with a second coloring composition, once the second coloring composition has been deposited over the first coloring composition. The multiple ink system comprises: (a) a first aqueous coloring composition comprising a first dye whose coloring ability is destroyed in the presence of a bleach; and (b) a second aqueous coloring composition comprising from about 1% to about 20% by weight of a bleach; and from about 0.1% to about 12% by weight of a colorant capable of maintaining its characteristic color in the presence of a bleach and/or a pH of about 10 or greater. The multiple coloring composition may further comprise a base in an amount sufficient to elevate the pH of the second aqueous coloring composition to a level of from about 10 to about 12.
Inventors
- 👤 Richard E. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/50; B05D7/52; B05D7/54; B05D1/00; B05D1/36; B44; B44D; B44D2/00; C; C09; C09D; C09D11/00; C09D11/50; C09D7/00; B05D2451/00
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
86 words
A multiple coloring composition system comprising: (a) a first aqueous coloring composition comprising an amount of a first dye sufficient to produce a workable color changing composition and whose coloring ability is destroyed in the presence of a bleach; and (b) a second aqueous coloring composition comprising an amount of a bleach sufficient to allow for the erasing of said first aqueous coloring composition, and a second colorant capable of and in an amount sufficient to maintain its characteristic color in the presence of a bleach.
Claim 2
Dependent Claim
86 words
A multiple coloring composition system comprising: (a) a first aqueous coloring composition comprising an amount of a first dye sufficient to produce a workable color changing composition and whose coloring ability is destroyed in the presence of a bleach; and (b) a second aqueous coloring composition comprising an amount of a bleach sufficient to allow for the erasing of said first aqueous coloring composition, and a second colorant capable of and in an amount sufficient to maintain its characteristic color in the presence of a bleach.
Claim 3
Dependent Claim
29 words
The multiple coloring composition system of claim 1, wherein said first dye of said first coloring composition is selected from the group consisting of polymethine dyes and azo dyes.
Claim 4
Dependent Claim
43 words
The multiple coloring composition system of claim 1, wherein said first dye of said first coloring composition is selected from the group consisting of Astrazon Blue FRR, Astrazon Brilliant Red 4G, Astrazon Pink FBB, Acid Green 3, Acid Violet 19 and mixtures thereof.
Claim 5
Dependent Claim
28 words
The multiple coloring composition system of claim 1, wherein said second colorant of said second coloring composition is selected from the group consisting of pigments and xanthene dyes.
Claim 6
Dependent Claim
45 words
The multiple coloring composition system of claim 1, wherein said second colorant of said second coloring composition is selected from the group consisting of Pyranine 120, Acid Red 52, Food Red 14, Basantol Green 910, Acid Red 87, Acid Red 92, pigments, and mixtures thereof.
Claim 7
Dependent Claim
27 words
The multiple coloring composition system of claim 1, wherein said bleach is selected from the group consisting of hydrogen sulfide, sodium sulfite, sodium hypochlorite and hydrogen peroxide.
Claim 8
Dependent Claim
102 words
A color changing marking kit comprising at least two marking instruments, said first marking instrument containing a first marking composition comprising an amount of a first dye sufficient to produce a workable color changing composition and whose coloring ability is destroyed in the presence of a bleach, and said second writing instrument containing a second marking composition, said second marking composition comprising (1) an amount of a bleach sufficient to allow for the erasing of said first marking composition, and (2) a second colorant capable of and in an amount sufficient to maintain its characteristic color in the presence of a bleach.
Claim 9
Dependent Claim
102 words
A color changing marking kit comprising at least two marking instruments, said first marking instrument containing a first marking composition comprising an amount of a first dye sufficient to produce a workable color changing composition and whose coloring ability is destroyed in the presence of a bleach, and said second writing instrument containing a second marking composition, said second marking composition comprising (1) an amount of a bleach sufficient to allow for the erasing of said first marking composition, and (2) a second colorant capable of and in an amount sufficient to maintain its characteristic color in the presence of a bleach.
Claim 10
Dependent Claim
29 words
The color changing marking kit of claim 7, wherein said first dye of said first coloring composition is selected from the group consisting of polymethine dyes and azo dyes.
Claim 11
Dependent Claim
43 words
The color changing marking kit of claim 7, wherein said first dye of said first coloring composition is selected from the group consisting of Astrazon Blue FRR, Astrazon Brilliant Red 4G, Astrazon Pink FBB, Acid Green 3, Acid Violet 19 and mixtures thereof.
Claim 12
Dependent Claim
28 words
The color changing marking kit of claim 7, wherein said second colorant of said second coloring composition is selected from the group consisting of pigments and xanthene dyes.
Claim 13
Dependent Claim
45 words
The color changing marking kit of claim 7, wherein said second colorant of said second coloring composition is selected from the group consisting of Pyranine 120, Acid Red 52, Food Red 14, Basantol Green 910, Acid Red 87, Acid Red 92, pigments, and mixtures thereof.
Claim 14
Dependent Claim
27 words
The color changing marking kit of claim 7, wherein said bleach is selected from the group consisting of hydrogen sulfide, sodium sulfite, sodium hypochlorite and hydrogen peroxide.
Claim 15
Dependent Claim
104 words
A paint composition system comprising at least: (a) a first aqueous paint comprising an amount of a first dye sufficient to produce a workable paint and whose coloring ability is destroyed in the presence of bleach and an amount of a thickener sufficient to provide body to the paint; and (b) a second aqueous paint comprising an amount of a bleach sufficient to allow for the erasing of said first aqueous paint, a second colorant capable of and in an amount sufficient to maintain its characteristic color in the presence of bleach, and an amount of a thickener sufficient to provide body the paint.
Claim 16
Dependent Claim
104 words
A paint composition system comprising at least: (a) a first aqueous paint comprising an amount of a first dye sufficient to produce a workable paint and whose coloring ability is destroyed in the presence of bleach and an amount of a thickener sufficient to provide body to the paint; and (b) a second aqueous paint comprising an amount of a bleach sufficient to allow for the erasing of said first aqueous paint, a second colorant capable of and in an amount sufficient to maintain its characteristic color in the presence of bleach, and an amount of a thickener sufficient to provide body the paint.
Claim 17
Dependent Claim
28 words
The paint composition system of claim 13, wherein said first dye of said first coloring composition is selected from the group consisting of polymethine dyes and azo dyes.
Claim 18
Dependent Claim
42 words
The paint composition system of claim 13, wherein said first dye of said first coloring composition is selected from the group consisting of Astrazon Blue FRR, Astrazon Brilliant Red 4G, Astrazon Pink FBB, Acid Green 3, Acid Violet 19 and mixtures thereof.
Claim 19
Dependent Claim
27 words
The paint composition system of claim 13, wherein said second colorant of said second coloring composition is selected from the group consisting of pigments and xanthene dyes.
Claim 20
Dependent Claim
44 words
The paint composition system of claim 13, wherein said second colorant of said second coloring composition is selected from the group consisting of Pyranine 120, Acid Red 52, Food Red 14, Basantol Green 910, Acid Red 87, Acid Red 92; pigments, and mixtures thereof.
Claim 21
Dependent Claim
26 words
The paint composition system of claim 13, wherein said bleach is selected from the group consisting of hydrogen sulfide, sodium sulfite, sodium hypochlorite and hydrogen peroxide.
Claim 22
Dependent Claim
80 words
An ink composition system comprising: (a) a first aqueous ink comprising an amount of a first dye sufficient to produce a workable ink and whose coloring ability is destroyed in the presence of a bleach; and (b) a second aqueous ink comprising an amount of a bleach sufficient to allow for the erasing of said first aqueous ink and a second colorant capable of and in an amount sufficient to maintain its characteristic color in the pressure of a bleach.
Claim 23
Dependent Claim
80 words
An ink composition system comprising: (a) a first aqueous ink comprising an amount of a first dye sufficient to produce a workable ink and whose coloring ability is destroyed in the presence of a bleach; and (b) a second aqueous ink comprising an amount of a bleach sufficient to allow for the erasing of said first aqueous ink and a second colorant capable of and in an amount sufficient to maintain its characteristic color in the pressure of a bleach.
Claim 24
Dependent Claim
28 words
The ink composition system of claim 19, wherein said first dye of said first coloring composition is selected from the group consisting of polymethine dyes and azo dyes.
Claim 25
Dependent Claim
42 words
The ink composition system of claim 19, wherein said first dye of said first coloring composition is selected from the group consisting of Astrazon Blue FRR, Astrazon Brilliant Red 4G, Astrazon Pink FBB, Acid Green 3, Acid Violet 19 and mixtures thereof.
Claim 26
Dependent Claim
27 words
The ink composition system of claim 19, wherein said second colorant of said second coloring composition is selected from the group consisting of pigments and xanthene dyes.
Claim 27
Dependent Claim
44 words
The ink composition system of claim 19, wherein said second colorant of said second coloring composition is selected from the group consisting of Pyranine 120, Acid Red 52, Food Red 14, Basantol Green 910, Acid Red 87, Acid Red 92, pigments, and mixtures thereof.
Claim 28
Dependent Claim
26 words
The ink composition system of claim 19, wherein said bleach is selected from the group consisting of hydrogen sulfide, sodium sulfite, sodium hypochlorite and hydrogen peroxide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-10-03 | 1998-04-04 | 1998-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-03 | 2002-04-04 | 2002-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-03 | 2006-04-04 | 2006-10-04 | $7700.00 | Window Closed / Lapsed |