Patent · US Expired

Ternary pigment compositions

US6616750B2 · kind B2 · utility

1Cited by

26References

3Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Roman Lenz · Liestal, CH
Olof Wallquist · Basel, CH
Ingo Schloder · Matran, CH

Key dates

Filing date	Sep 12, 2002
Grant date	Sep 9, 2003
Priority date	—
Expiry date	Sep 12, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B67/003
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Ternary pigment compositions of compounds of formulae (I), (II) and (III) obtainable by reaction of succinic acid diesters with from 90 to 15 mol % 4-methylbenzonitrile and from 10 to 85 mol % 3-methylbenzonitrile, the molar amounts of the benzonitriles totalling 100 mol %, a process for the preparation thereof, and the use thereof for pigmenting organic material.

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