Patent · US Expired

Thermoreactive recording material

US5134113A · kind A · utility

1Cited by

4References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Gunter Klug · Langenfeld, DE
Hubertus Psaar · Leverkusen, DE
Siegfried Korte · Odenthal, DE

Key dates

Filing date	Jun 29, 1990
Grant date	Jul 28, 1992
Priority date	—
Expiry date	Jun 29, 2010

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41M5/3331
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Thermoreactive recording material contains, as developer, a mixture of an acidic-modified polymer of (meth)acrylonitrile and/or methacrylonitrile and a diphenol of the formula ##STR1## in which Y is, for example, a single bond, an alkylene or alkylidene radical, gives, on thermal printing, a dye which has a reduced tendency to sublime.

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