Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Spatial relationship specified between color-former and...
Reexamination Certificate
2005-05-31
2005-05-31
Hess, Bruce H. (Department: 1774)
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Spatial relationship specified between color-former and...
C427S152000, C503S200000
Reexamination Certificate
active
06900159
ABSTRACT:
In the invention, a recording material containing a support having a recording layer thereon capable of forming a color by the application of heat and/or pressure is provided, and the material further contains at least one layer containing acetoacetyl-modified polyvinyl alcohol and a hardening agent between the support and the recording layer. The hardening agent is a compound having, in one molecule thereof, two or more vinyl groups adjacent to a substituent having a positive Hammett's substituent constant σp.
REFERENCES:
patent: 6660689 (2003-12-01), Serizawa et al.
patent: A 11-5366 (1999-01-01), None
patent: A 2000-177244 (2000-06-01), None
patent: A 2002-86917 (2002-03-01), None
patent: A 2003-1940 (2003-01-01), None
Ogata Yasuhiro
Yamamoto Hiroshi
Fuji Photo Film Co. , Ltd.
Hess Bruce H.
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