Patent · US Expired

Substantially light-insensitive thermographic recording materials with improved stability

US6180165A · kind A · utility

1Cited by

2References

13Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Carlo Uyttendaele · Berchem, BE
Jan Gilleir · Mortsel, BE
Ingrid Geuens · Emblem, BE
Ivan Hoogmartens · Wilrijk, BE

Key dates

Filing date	Oct 13, 1999
Grant date	Jan 30, 2001
Priority date	—
Expiry date	Oct 13, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG03C2200/45
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A substantially light-insensitive thermographic recording material substantially exclusive of cationic surfactants in which at least one non-cationic surfactant is present, the thermographic recording material comprising a support and a thermosensitive element containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith and a binder, wherein all the non-cationic surfactants present in the thermographic recording material together have a non-fluoro-halide ion concentration of 1500 ppm or less; and a process for the production thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.