CA2386091A1 - Thermochromic ink formulations, nail lacquer and methods of use - Google Patents
Thermochromic ink formulations, nail lacquer and methods of use Download PDFInfo
- Publication number
- CA2386091A1 CA2386091A1 CA002386091A CA2386091A CA2386091A1 CA 2386091 A1 CA2386091 A1 CA 2386091A1 CA 002386091 A CA002386091 A CA 002386091A CA 2386091 A CA2386091 A CA 2386091A CA 2386091 A1 CA2386091 A1 CA 2386091A1
- Authority
- CA
- Canada
- Prior art keywords
- formulation
- thermochromic
- methods
- formulations
- dyes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009472 formulation Methods 0.000 title abstract 6
- 239000000203 mixture Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 2
- 239000004922 lacquer Substances 0.000 title 1
- 239000000975 dye Substances 0.000 abstract 4
- 239000002904 solvent Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 150000001299 aldehydes Chemical class 0.000 abstract 1
- 150000001491 aromatic compounds Chemical class 0.000 abstract 1
- 150000002009 diols Chemical class 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000009257 reactivity Effects 0.000 abstract 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The present invention comprises a series of discoveries related to the problems associated with formulations that destroy the color change properties of thermochromic encapsulated dyes. One aspect of the present invention is the discovery of a method of correcting these formulations to allow the addition of thermochromic dyes. Certain solvents destroy the dye, therefore any aldehydes, ketones, and diols, and most aromatic compounds should be removed from the formulation and if needed they should be replaced with solvents preferably having a large molecular weight (i.e. greater than 100 and low reactivity). Secondly, the formulation should be adjusted to be neutral (i.e. 6.5-7.5 pH) or have a low acid value. These two adjustments will allow the thermochromic dyes to be added to the formulation without a loss of its color change properties.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/315,893 | 1994-09-30 | ||
| US08/315,893 US5591255A (en) | 1993-12-29 | 1994-09-30 | Thermochromic ink formulations, nail lacquer and methods of use |
| CA002201397A CA2201397C (en) | 1994-09-30 | 1995-09-29 | Thermochromic ink formulations, nail lacquer and methods of use |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002201397A Division CA2201397C (en) | 1994-09-30 | 1995-09-29 | Thermochromic ink formulations, nail lacquer and methods of use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2386091A1 true CA2386091A1 (en) | 1996-04-11 |
| CA2386091C CA2386091C (en) | 2008-07-15 |
Family
ID=25679192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002386091A Expired - Lifetime CA2386091C (en) | 1994-09-30 | 1995-09-29 | Thermochromic ink formulations, nail lacquer and methods of use |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2386091C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291299A (en) * | 2015-05-12 | 2017-01-04 | 富士电机（中国）有限公司 | The thermal fatigue life determination methods of power semiconductor modular and power semiconductor modular |
-
1995
- 1995-09-29 CA CA002386091A patent/CA2386091C/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291299A (en) * | 2015-05-12 | 2017-01-04 | 富士电机（中国）有限公司 | The thermal fatigue life determination methods of power semiconductor modular and power semiconductor modular |
| CN106291299B (en) * | 2015-05-12 | 2023-09-19 | 富士电机（中国）有限公司 | Power semiconductor module and thermal fatigue life judging method of power semiconductor module |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2386091C (en) | 2008-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20150929 |