Microcapsules containing a radiation sensitive composition and their use
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United States of America Patent
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Feb 25, 2003
Grant Date -
N/A
app pub date -
Mar 1, 2001
filing date -
Mar 1, 2000
priority date (Note) -
Expired
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Abstract
The object of the present invention is to provide a material which takes on a color or which changes its colors when selectively sensitized by ionizing radiation (especially by low doses of radiation) and which is not sensitive to visible and ultraviolet light etc. This is achieved by microcapsules containing a radiation sensitive composition comprising leuco compounds (a) and organic halogen compounds (b) as indispensable components.
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