The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1999
Filed:
May. 30, 1997
Geert Deroover, Kessel-Lo, BE;
Etienne Van Thillo, Essen, BE;
Ivan Hoogmartens, Wilrijk, BE;
Hans Strijckers, Oudergem, BE;
Agfa-Gevaert N.V., Mortsel, BE;
Abstract
A photothermographic recording material comprising a support; a photo-addressable thermally developable element comprising a substantially light-insensitive organic silver salt, photosensitive silver halide in catalytic association with the substantially light-insensitive organic silver salt spectrally sensitized to the infrared region of the electromagnetic spectrum and a binder; and in a hydrophobic layer an antihalation dye according to the general formula (I): ##STR1## wherein R.sup.1 and R.sup.15 independently represent an alkyl group or an alkyl group substituted with at least one fluorine, chlorine, bromine or an alkoxy-, aryloxy- or ester-group; R.sup.2, R.sup.3, R.sup.16 and R.sup.17 independently represent an alkyl group; R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.18, R.sup.19, R.sup.20 and R.sup.21 independently represent hydrogen, chlorine, bromine, fluorine or a keto-, sulfo-, carboxy-, ester-, sulfonamide-, amide-, dialkylamino-, nitro-, cyano-, alkyl-, alkenyl-, aryl-, alkoxy- or aryloxy-group; or each of R.sup.4 together with R.sup.5, R.sup.5 together with R.sup.6, R.sup.6 together with R.sup.7, R.sup.18 together with R.sup.19, R.sup.19 together with R.sup.20 or R.sup.20 together with R.sup.21 may independently constitute the atoms necessary to complete a benzene ring; R.sup.8, R.sup.9, R.sup.10 and R.sup.11 independently represent hydrogen, an alkyl group or each of R.sup.1 together with R.sup.8, R.sup.8 together with R.sup.9, R.sup.9 together with R.sup.10, R.sup.10 together with R.sup.11 or R.sup.11 together with R.sup.15 may independently constitute the atoms necessary to complete a 5-atom or 6-atom carbocylic or heterocyclic ring; R.sup.12, R.sup.13 and R.sup.14 independently represent hydrogen, chlorine, bromine or fluorine; and A.sup.- is a fluorinated alkyl or aryl anion in which the degree of fluorination is greater than 70%; a production process therefor and a photothermographic recording process therefor.