| 发明名称 |
INVISIBLE LOGOS USING HYDROPHOBIC AND HYDROPHILIC COATINGS ON SUBSTRATES |
| 摘要 |
<p>Disclosed are invisible logos, undetectable to the human eye, that may be temporarily viewed in response to stimuli. The invisible logo may be made by forming a hydrophilic coating (14) and a hydrophobic coating (12) on a substrate (10) surface, so that a portion of the hydrophilic coating (14) and a portion of the hydrophobic coating (12) are exposed.</p> |
| 申请公布号 |
WO03093824(A1) |
申请公布日期 |
2003.11.13 |
| 申请号 |
WO2003US13365 |
申请日期 |
2003.04.30 |
| 申请人 |
INNOVATION CHEMICAL TECHNOLOGIES, LTD. |
发明人 |
ARORA, PRAMOD, K. |
| 分类号 |
B05D5/00;B05D5/08;B41M3/14;(IPC1-7):G01N33/543;B42D15/10 |
主分类号 |
B05D5/00 |
| 代理机构 |
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代理人 |
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