Shaped artificial polymer articles
AssigneeBASF SE
InventorsGerard R. Finnegan, Thomas F. Thompson, Juan Carlos Capote, Rupa Hiremath Darji
Life of this patent
Estimating the term…
Abstract
Use of porous metal oxide microspheres as light stabilizers for shaped artificial polymer articles, wherein the porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres.
Claims13
A shaped artificial polymer article, wherein the polymer is a synthetic polymer and/or a natural or synthetic elastomer, and wherein the polymer contains porous metal oxide microspheres, wherein the porous metal oxide microspheres have:
- an average diameter of from 0.5 μm to 100 μm,
- an average porosity of from 0.10 to 0.80, and
- an average pore diameter of from 50 nm to 999 nm.
Dependencies are inferred from the claim text.