Patent · US Active

Light stabilizers

US9969864B2 · kind B2 · utility

1Cited by

34References

20Claims

0Family size

Assignee

BASF SE

Inventors

Wolfgang Peter · Bruchsal, DE
Adalbert Braig · Weil am Rhein, DE
Ulrich Berens · Binzen, DE
Kai-Uwe Schoning · Oberwil, CH
Markus Grob · Reinach, CH
Cinzia Tartarini · Sasso Marconi, IT
Tania WEYLAND · Kaisten, CH

Key dates

Filing date	Jul 3, 2014
Grant date	May 15, 2018
Priority date	—
Expiry date	Sep 20, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D175/04
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to symmetric diesters of hydroxyalkyl-4-hydroxy-tetraalkylpiperidine compounds and their use as light stabilizers. They are compatible with and soluble in coating formulations of different polarity.

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