(19)
(11) EP 0 178 903 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.10.1987 Bulletin 1987/43

(43) Date of publication A2:
23.04.1986 Bulletin 1986/17

(21) Application number: 85307418

(22) Date of filing: 15.10.1985
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 19.10.1984 US 662844

(71) Applicant: ENERGY CONVERSION DEVICES, INC.
 ()

(72) Inventors:
  • Yu, Terry Ta-Jen
     ()
  • Yen, Mei-Rong
     ()

   


(54) Improved tellurium imaging composition and film including imide or ammonium salt


(57) Improved imaging compositions and film are provided that employ a tellurium imaging compound, a reductant precursor, a masked reducing a agent, a source of labile hydrogen and an organic compound that improves the speed, developed optical density and/or background fog. These organic compounds include the following:





where R1 and R6 each and independently are hydrogen, alkyl of three carbons or less, hydroxyl, phenyl, benzyl or alkoxy of three carbons or less, R', R3, R4, R5, R7 and R8 each and independently are hydrogen, alkyl of three carbon atoms or less, phenyl or benzyl; and compounds of the formulae:

where R9, R10, R" and R" each and independently are hydrogen, alkyl of three carbon atoms or less, phenyl, benzyl, methylene, ethylidene or propylidene.





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