Patent · US Active

Phenylpyrazolone colorant

US8002888B2 · kind B2 · utility

0Cited by

8References

7Claims

0Family size

Assignee

Clariant Finance (BVI) Limited · VG

Inventors

Arpad Acs · Schwalbach, DE
Till Borchert · Rixheim, FR
Ruediger Jung · Kelkheim, DE
Steffen Schneider · Tamm, DE

Key dates

Filing date	Feb 12, 2008
Grant date	Aug 23, 2011
Priority date	—
Expiry date	Feb 12, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D15/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to a colorant of the formula (2) where M=Ca, Sr or a combination of Ca and Sr.

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