Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Identified solvent or dispersant for color-former – other...
Patent
1989-04-03
1989-11-07
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Identified solvent or dispersant for color-former, other...
427150, 428914, B41M 516, B41M 522
Patent
active
048792691
ABSTRACT:
The present invention provides a pressure sensitive copy material using an electron accepting developer and an electron donating coupler which develops a color by contacting with the developer, the pressure sensitive copy material being characterized by employing phenyl-sec-butylphenyl-methane as a solvent for the electron donating coupler.
REFERENCES:
patent: Re32162 (1986-05-01), Sato et al.
patent: 3996405 (1976-12-01), Porter
patent: 4390194 (1983-06-01), Sato
Matsuzaka Eiichi
Narui Satoshi
Takahashi Naoya
Hess Bruce H.
Nippon Petrochemicals Co. Ltd.
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