Patent · US Active

Use of an ultraviolet radiation absorbing composition as a light stabilizer for a shaped artificial polymer article

US11981793B2 · kind B2 · utility

0Cited by

9References

18Claims

0Family size

Assignee

BASF SE

Inventors

Thomas Ehlis · Glückstadt, DE
Heinz Herbst · Herbstein, DE
Daniel Mueller · Pewaukee, US
Manuele Vitali · Bologna, IT
Gregor HUBER · Glückstadt, DE

Key dates

Filing date	Apr 1, 2019
Grant date	May 14, 2024
Priority date	—
Expiry date	Mar 20, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2201/019
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An ultraviolet radiation absorbing composition can be used as a light stabilizer for a shaped artificial polymer article, wherein the polymer is a synthetic polymer and/or a natural elastomer and wherein the ultraviolet radiation absorbing composition includes the compound of formula (I) wherein n and m are independently 0 to 20, and at least one of m and n being ≥1; and X1, X2, X3, X4 and X5 are the same or different and are independently selected from H, C(O)R1 with R1 being C8-C24-alkyl, or a group of the general formula (II) wherein R2 is H or halogen.

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