Patent · US Active

Composition containing lanthanide metal complex

US11441105B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

RHODIA OPERATIONS · FR

Inventors

Bing Hong · Dongguan, CN
Alexander Lerch · Gelnhausen, DE
Stéphane Streiff · Shanghai, CN
Peng Fei Ji · Shanghai, CN
Armin T. Liebens · Braine-l'Alleud, BE

Key dates

Filing date	Dec 15, 2017
Grant date	Sep 13, 2022
Priority date	—
Expiry date	Dec 15, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D2111/14
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Provided is the use of a lanthanide metal complex as a bleaching catalyst. In particular, the lanthanide metal complex comprises a ligand which is an aromatic compound having at least one electron withdrawing substituent and at least one nucleophilic group. Provided is also a composition containing the lanthanide metal complex.

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