Patent · US Expired

Pigment formulations containing a pigment, a colorant having an external basic group and a surfactant

US5324354A · kind A · utility

16Cited by

22References

5Claims

0Family size

Assignee

BASF SE

Inventors

Joachim Jesse · Bad Dürkheim, DE
Juan Antonio Gonzalez Gomez · Ludwigshafen, DE
Gustav Bock
Paul Guenthert · Schifferstadt, DE

Key dates

Filing date	Aug 5, 1991
Grant date	Jun 28, 1994
Priority date	—
Expiry date	Aug 5, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B67/0034
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Pigment formulations contain a) a finely divided pigment, b) at least one colorant which has at least one external basic group, c) at least one acidic and/or neutral phosphoric ester and d) if required, further assistants conventionally used in such formulations. The formulations are used for pigmenting printing inks and lakes. The printing inks, pastes and lakes produced using the formulations have substantially better flow behavior than the inks and lakes obtained using prior art pigments.

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