Patent · US Active

Light stabilized copolyetherester compositions

US7754825B2 · kind B2 · utility

1Cited by

3References

20Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

James Michael McKenna · Hockessin, US
Austin Reid · Wilmington, US
Robert R. Reitz · West Chester, US
Shailaja R. Vaidya · Hockessin, US

Key dates

Filing date	Jan 20, 2006
Grant date	Jul 13, 2010
Priority date	—
Expiry date	Mar 25, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31507
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Ultraviolet light stabilized copolyetherester compositions that comprise at least one nanoparticulate mineral selected from titanium dioxide, cerium oxide, and zinc oxide and at least one organic ultraviolet light stabilizer. Articles formed from the compositions are also disclosed.

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