Patent · US Active

Hydroxyphenyltriazines with an aromatic carbocyclic fused ring system

US8389719B2 · kind B2 · utility

4Cited by

5References

6Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Thomas Vogel · Griesheim, DE
Adalbert Braig · Weil am Rhein, DE
Thomas Schäfer · Basel, CH
Rachel Kohli Steck · Basel, CH
Valerie Stutz · Münchenstein, CH

Key dates

Filing date	May 31, 2006
Grant date	Mar 5, 2013
Priority date	—
Expiry date	May 23, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31678
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The instant invention relates to novel hydroxyphenyl triazine UV-absorbers with an aromatic carbocyclic fused ring system having a long wavelength shifted absorption spectrum with significant absorbance up to 420 nm. Further aspects of the invention are a process for their preparation, a UV stabilized composition containing the new UV-absorbers, a process for the stabilization of organic materials and the use of the new compounds as UV-light stabilizers for organic materials.

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