Patent · US Expired

Substantially light-insensitive thermographic recording materials with improved stability

US6310001A · kind A · utility

0Cited by

2References

12Claims

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	Sep 15, 1998
Grant date	Oct 30, 2001
Priority date	—
Expiry date	Sep 15, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24942
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.