Patent · US Expired

Recording fluid for the ink jet process

US5015292A · kind A · utility

7Cited by

8References

2Claims

0Family size

Assignee

BASF SE

Inventors

Horst Bruder · Ludwigshafen, DE
Rainer Dyllick-Brenzinger · Speyer, DE
Udo Mayer · Bischofswerda, DE
Steven J. Bares · Corvallis, US

Key dates

Filing date	Jan 23, 1989
Grant date	May 14, 1991
Priority date	—
Expiry date	Jan 23, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D11/328
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A recording fluid for the ink jet process contains a water-miscible organic solvent and a dye of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each have specified meanings, An.crclbar. is an anion and X is a bridge member of the formula ##STR2## where Y and the rings A and B each have specified meanings.

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