3 patents
Utility
Zirconia-based Aqueous Np-dispersion for Use In Coating Filter Substrates
17 Mar 22
This invention relates to an aqueous dispersion of particles, the dispersion having a particle content of 10-70 wt %, and the particles comprising, on an oxide basis: (a) 10-98 wt % in total of ZrO2+HfO2, and (b) 2-90 wt % in total of AI2O3, CeO2, La2O3, Nd2O3, Pr6O11, Y2O3, or a transition metal oxide, wherein the dispersion has a Z-average particle size of 100-350 nm and the particles have a crystallite size of 1-9 nm.
David Alastair SCAPENS, Deborah Jayne HARRIS
Filed: 2 Dec 19
Utility
Corrodible Downhole Article
17 Feb 22
This invention relates to a corrodible downhole article comprising an aluminium alloy, wherein the aluminium alloy comprises (a) 3-15 wt % Mg, (b) 0.01-5 wt % In, (c) 0-0.25 wt % Ga, and (d) at least 60 wt % Al.
Matthew MURPHY, Mark TURSKI
Filed: 26 Nov 19
Utility
ZIRCONIA-BASED COMPOSITIONS FOR USE IN PASSIVE NOx ADSORBER DEVICES
1 Apr 20
A passive NOX adsorbent includes: palladium, platinum or a mixture thereof and a mixed or composite oxide including the following elements in percentage by weight, expressed in terms of oxide: 10-90% by weight zirconium and 0.1-50% by weight of least one of the following: a transition metal or a lanthanide series element other than Ce.
Deborah Jayne HARRIS, David Alastair SCAPENS, John G. DARAB, Mark CROCKER, Yaying JI
Filed: 2 Dec 19
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