MOULDED ARTICLES FROM ARTIFICIAL POLYMER Russian patent published in 2024 - IPC C04B26/02 C04B35/01 C04B35/111 C04B35/626 

FIELD: chemistry.

SUBSTANCE: invention relates to use of porous metal oxide microspheres as light stabilizers for moulded articles from artificial polymer and corresponding moulded articles from artificial polymer and corresponding extruded, cast, moulded, injection moulded or calendered polymer compositions. Disclosed is the use of porous metal oxide microspheres as light stabilizers for a moulded article from an artificial polymer, wherein the porous metal oxide microspheres contain a metal oxide and are obtained using a method involving the formation of a liquid dispersion of polymer nanoparticles and a metal oxide, formation of liquid drops of dispersion, drying of these liquid drops to obtain polymer template microspheres containing polymer nanospheres and metal oxide, and removal of said polymer nanospheres from template microspheres to obtain porous metal oxide microspheres, and wherein said microspheres have an average diameter of 0.5 mcm to 100 mcm, an average porosity of 0.10 to 0.80, and an average pore diameter of 50 nm to 999 nm.

EFFECT: reduced transmission of UV light.

16 cl, 12 dwg, 8 tbl