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US 8,940,814 B2Granted
Dispersions comprising functionalized oxidic nanoparticles
AssigneeBASF SE
InventorsAndrey Karpov, Hartmut Hibst, Berend Eling, Joern Duwenhorst, Richard Riggs, Alexander Traut, Christof Kujat, Cornelia Roeger, Christian Krausche
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Abstract
Dispersion comprising functionalized metal oxide particles, polymerizable compounds and if appropriate a solvent and their use for stabilizing polymers.
Claims17
A dispersion comprising
- 1) a functionalized UV-absorbing metal oxide particle FM which has an average particle size, measured by the dynamic light scattering (DLS) method, in a range from 10 nm to 50 nm, wherein the metal oxide particle FM is functionalized with a compound F of the formula:
- R1LF1
- in which
- R1 is an oxygen-containing radical,
- L is a divalent bonding group,
- F1 is a metal-oxide-affine group;
- 2) polymerizable compound PP and a solvent S, and optionally
- 3) a polymer soluble in the solvent S,
- wherein the functionalized metal oxide particle FM has an amorphous coating;
- and
- wherein the amorphous coating is selected from the group consisting of oxide;
- oxide hydroxide;
- or oxide hydrates of silicon, aluminum or zirconium;
- and mixtures thereof.
11 more elements
A functionalized UV-absorbing inorganic particle FM, which has an average particle size, measured according to the dynamic light scattering (DLS) method, in a range from 10 nm to 50 nm, wherein the particle FM is functionalized with a compound F of the formula
- R1LF1
- in which
- R1 is an oxygen-containing radical,
- L is a divalent binding group,
- F1 is a metal-oxide-affine group,
- and in which the particle FM has an amorphous coating;
- and
- wherein the amorphous coating is selected from the group consisting of oxide;
- oxide hydroxide;
- or oxide hydrates of silicon, aluminum or zirconium;
- and mixtures thereof.
8 more elements
Dependencies are inferred from the claim text.