Patent · US Active

Tri- and tetrasubstituted pentarylenetetracarboximides

US8399669B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

BASF SE

Inventors

Jianqiang Qu · Shanghai, CN
Neil Gregory Pschirer · Mainz, DE

Key dates

Filing date	Apr 21, 2009
Grant date	Mar 19, 2013
Priority date	—
Expiry date	Dec 6, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D471/06
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to pentarylenetetracarboximides of the formula (I) or (Ia) or mixtures thereofto processes for preparation thereof, and to the precursors and use thereof.

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