Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Image layer portion transfer and element therefor
Patent
1993-06-29
1995-03-28
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Image layer portion transfer and element therefor
430269, 430270, 430340, 430333, 430336, G03C 300
Patent
active
054016070
ABSTRACT:
An infra-red sensitive acid-generating medium comprises a binder, an iodonium salt; and a squarylium dye capable of absorbing infra-red radiation having a wavelength within the range of about 700 to about 1200 nm, the dye having a squarylium ring the 1- and 3-positions of which are each connected, via a single sp.sup.2 carbon atom, to a pyrylium, thiopyrylium, benzpyrylium or benzthiopyrylium nucleus, at least one of the sp.sup.2 carbon atoms having a hydrogen atom attached thereto, and the 2-position of the squarylium ring bearing an O.sup.-, amino or substituted amino, or sulfonamido group.
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Takiff Larry C.
Telfer Stephen J.
Waterman Kenneth C.
Bowers Jr. Charles L.
Cole David J.
Letscher Geraldine
Polaroid Corporation
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