Patent · US Active

Coumestan-like antioxidants and UV absorbants

US8383088B2 · kind B2 · utility

1Cited by

2References

14Claims

0Family size

Assignee

BASF SE

Inventors

Barbara Wagner · Charleston, US
Sebastien Mongiat · Sierentz, FR
Bernd Herzog · Weil am Rhein, DE
Werner Baschong · Basel, CH
Andreas Buthe · Steinfurt, DE
Reinhold Öhrlein · Rheinfelden (Baden), DE

Key dates

Filing date	Feb 29, 2008
Grant date	Feb 26, 2013
Priority date	—
Expiry date	Aug 14, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K2800/522
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to derivatives of the 1H-pyrano[4,3-b]benzofuran-1-one structure and their nitrogen analogues which possess powerful antioxidant properties combined with a highly effective UV absorbing functionality in one molecule. These compounds are especially useful in cosmetical and dermatological formulations.

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