Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Method of use – kit – or combined with marking instrument or...
Patent
1996-03-01
1998-12-08
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Method of use, kit, or combined with marking instrument or...
427151, 503215, 503218, 503226, B41M 5136
Patent
active
058469010
ABSTRACT:
This invention includes novel and pyrrole color-forming compounds and the reaction of these compounds or and pyrrole color-forming compounds to form colored compounds. The invention also includes the use of these color-forming compounds in the manufacture and imaging of thermal imaging papers and pressure-sensitive imaging papers.
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Hess Bruce H.
Minnesota Mining and Manufacturing Company
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