Patent · US Expired

Pressure-sensitive recording material

US4859650A · kind A · utility

9Cited by

4References

10Claims

0Family size

Assignee

Feldmuhle Aktiengesellschaft · DE

Inventors

Bodo Hilterhaus · Rheydt, DE
Gunther Hunger · Korschenbroich, DE

Key dates

Filing date	Sep 30, 1987
Grant date	Aug 22, 1989
Priority date	—
Expiry date	Sep 30, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/914
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A pressure-sensitive recording material is disclosed, having microcapsules containing a triphenylmethane leuco-dye dissolved in a solvent composed at least 80% of plant, animal or paraffin oils, the microcapsule walls being formed of a wall material which is water-soluble or water-dispersible before the formation of the microcapsules. Preferably, the color former is of the formula ##STR1##

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