Global Patent Index - EP 0178903 A3

EP 0178903 A3 19871021 - IMPROVED TELLURIUM IMAGING COMPOSITION AND FILM INCLUDING IMIDE OR AMMONIUM SALT

Title (en)

IMPROVED TELLURIUM IMAGING COMPOSITION AND FILM INCLUDING IMIDE OR AMMONIUM SALT

Publication

EP 0178903 A3 19871021 (EN)

Application

EP 85307418 A 19851015

Priority

US 66284484 A 19841019

Abstract (en)

[origin: EP0178903A2] 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: <CHEM> and <CHEM> where R<1> and R<6> each and independently are hydrogen, alkyl of three carbons or less, hydroxyl, phenyl, benzyl or alkoxy of three carbons or less, R<2>, R<3>, R<4>, R<5>, R<7> and R<8> each and independently are hydrogen, alkyl of three carbon atoms or less, phenyl or benzyl; and compounds of the formulae: <CHEM> where R<9>, R<1><0>, R<1><1> and R<1><2> each and independently are hydrogen, alkyl of three carbon atoms or less, phenyl, benzyl, methylene, ethylidene or propylidene.

IPC 1-7

G03C 1/72

IPC 8 full level

G03C 1/72 (2006.01); G03C 1/73 (2006.01); G03C 1/735 (2006.01)

CPC (source: EP)

G03C 1/734 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0178903 A2 19860423; EP 0178903 A3 19871021; AU 4886785 A 19860424; JP S6198345 A 19860516

DOCDB simple family (application)

EP 85307418 A 19851015; AU 4886785 A 19851018; JP 23311585 A 19851018