Patent · US Active

UV-light-absorbing quaternary polysiloxanes

US7776989B2 · kind B2 · utility

19Cited by

2References

5Claims

0Family size

Assignee

EVONIK GOLDSCHMIDT GMBH · DE

Inventors

Michael Ferenz · Essen, DE
Burghard Gruening · Essen, DE
Holger Leidreiter · Essen, DE
Erika Messinger · Warburg, DE
Matthias Pascaly · Hachenburg, DE
Astrid Zuendorff · Mülheim an der Ruhr, DE

Key dates

Filing date	Feb 1, 2006
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Jun 19, 2029

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06M2200/50
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to UV-light-absorbing quaternary polysiloxanes in which quaternary groups and UV-absorbing radicals can be mixed independently of one another according to the general formula (I)

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