Abstract: An example method is performed at a device with a display and a biometric sensor. While the device is in a locked state, the method includes displaying a log-in user interface that is associated with logging in to a first and second user account. While displaying the log-in user interface, the method includes, receiving biometric information, and in response to receiving the biometric information: when the biometric information is consistent with biometric information for the first user account and the first user account does not have an active session, displaying a prompt to input a log-in credential for the first user account; and when the biometric information is consistent with biometric information for the second user account and the second user account does not have an active session on the device, displaying a prompt to input a log-in credential for the second user account.

Abstract: An example method is performed at a device with a display and a biometric sensor. While the device is in a locked state, the method includes displaying a log-in user interface that is associated with logging in to a first and second user account. While displaying the log-in user interface, the method includes, receiving biometric information, and in response to receiving the biometric information: when the biometric information is consistent with biometric information for the first user account and the first user account does not have an active session, displaying a prompt to input a log-in credential for the first user account; and when the biometric information is consistent with biometric information for the second user account and the second user account does not have an active session on the device, displaying a prompt to input a log-in credential for the second user account.

Abstract: A method of treating particulate titanium dioxide includes providing the particulate titanium dioxide which includes a crystal structure and then treating the particulate titanium dioxide with a coating agent that is an alkylphosphonic acid or an ester thereof, and steam micronizing the particulate titanium dioxide with a steam micronizer so that a vapor exit temperature from the steam micronizer is 150° C. or higher, so as to obtain a micronized particulate titanium dioxide which includes the coating agent at an outer surface. The particulate titanium dioxide includes an aluminum oxide coating and/or includes within the crystal structure aluminum oxide in a molar excess of an amount required to compensate any Nb2O5 in the crystal structure. The alkylphosphonic acid includes a C6-C22 alkyl group.

Abstract: A coated particulate inorganic material includes a particulate inorganic material selected from at least one of titanium dioxide and a doped titanium dioxide, and a coating. The particulate inorganic material has an average crystal size of 0.4-2 ?m. The coating includes a first and second layer. The first layer includes an inorganic oxide and/or an inorganic phosphate. The second layer is alumina. The first layer is from 0.1 to 2.2% w/w based on a total weight of the first layer with respect to a total weight of the particulate inorganic material. The second layer is 0.1 to 3.5% w/w based on a total weight of the second layer with respect to the total weight of the particulate inorganic material. The coating is from 0.2 to 4.5% w/w based on the total weight of the first and second layer with respect to the total weight of the particulate inorganic material.

Abstract: The invention provides a method for preparing a dry titanium dioxide product, comprising the steps of: providing a dispersion comprising titanium dioxide particles; treating the titanium dioxide particles with a silane of formula (I): RII(ORI)aORSiX3??(I) wherein R is a divalent C1-24 organic group that is carbon-bonded to the silicon atom, RI is a C2-6 alkylene group, RII is hydrogen, a C1-16 alkyl group, a C2-16 alkyl ether group, or a C2-12 acyloxy group, X is a hydrolysable group, and a is a number having a value from 3 to 150; and then drying the dispersion to provide a dry titanium dioxide product. The dry titanium dioxide product may optionally be dispersed within a vehicle.

Abstract: The present invention provides a coating composition suitable for use in forming a coating that can reduce a concentration of pollutant gases in the environment. The coating composition includes from 0.01 to 10 vol.-% of mesoporous titania particles, relative to a total volume of the coating composition, and from 5 to 99.99 vol.-% of a polymeric material, relative to the total volume of the coating composition. The mesoporous titania particles have a continuous exterior convex surface, a particle diameter of ?1 ?m but ? to 50 ?m, a BET specific surface area of from 30 to 350 m2/g, a modal pore diameter of ?5 nm but ?50 nm, and a pore size distribution so that 85% or more of a total pore volume is associated with pores having a diameter of 10 ?m or less.

Abstract: A method of treating particulate titanium dioxide includes providing the particulate titanium dioxide which includes a crystal structure and then treating the particulate titanium dioxide with a coating agent that is an alkylphosphonic acid or an ester thereof, and steam micronizing the particulate titanium dioxide with a steam micronizer so that a vapor exit temperature from the steam micronizer is 150° C. or higher, so as to obtain a micronized particulate titanium dioxide which includes the coating agent at an outer surface. The particulate titanium dioxide includes an aluminum oxide coating and/or includes within the crystal structure aluminum oxide in a molar excess of an amount required to compensate any Nb2O5 in the crystal structure. The alkylphosphonic acid includes a C6-C22 alkyl group.

Abstract: A coated particulate inorganic material includes a particulate inorganic material selected from at least one of titanium dioxide and a doped titanium dioxide, and a coating. The particulate inorganic material has an average crystal size of 0.4-2 ?m. The coating includes a first and second layer. The first layer includes an inorganic oxide and/or an inorganic phosphate. The second layer is alumina. The first layer is from 0.1 to 2.2% w/w based on a total weight of the first layer with respect to a total weight of the particulate inorganic material. The second layer is 0.1 to 3.5% w/w based on a total weight of the second layer with respect to the total weight of the particulate inorganic material. The coating is from 0.2 to 4.5% w/w based on the total weight of the first and second layer with respect to the total weight of the particulate inorganic material.

Abstract: The invention provides a method for preparing a dry titanium dioxide product, comprising the steps of: providing a dispersion comprising titanium dioxide particles; treating the titanium dioxide particles with a silane of formula (I): RII(ORI)aORSiX3??(I) wherein R is a divalent C1-24 organic group that is carbon-bonded to the silicon atom, RI is a C2-6 alkylene group, RII is hydrogen, a C1-16 alkyl group, a C2-16 alkyl ether group, or a C2-12 acyloxy group, X is a hydrolysable group, and a is a number having a value from 3 to 150; and then drying the dispersion to provide a dry titanium dioxide product. The dry titanium dioxide product may optionally be dispersed within a vehicle.

Abstract: The invention provides a method for preparing a titanium dioxide product, comprising the steps of: providing a dispersion comprising titanium dioxide particles, wherein the dispersion contains from 50 g/l to 600 g/l TiO2; and then, in any order, applying an inorganic coating to the titanium dioxide particles, whilst maintaining colloidal stability before and/or during the coating step; concentrating the dispersion, by subjecting the dispersion to the effects of cross-flow filtration and continuing the cross-flow filtration process until the dispersion is in a concentrated form that contains 800 g/l or more TiO2; so as to provide a titanium dioxide product in the form of a concentrated dispersion of coated particles. The concentrated dispersion of coated particles may optionally be dispersed within a vehicle to obtain a pigment product.

Abstract: A colored composition comprising: a) NIR scattering TiO2 particulate material with an average crystal size of greater than 0.40 ?m and a particle size distribution such that 30% or more of the particles are less than 1 ?m; b) one or more non-white colorant; wherein the particulate material and the non-white colorant are dispersed within a vehicle. This material with a large crystal size has unusually high reflection of NIR radiation and, simultaneously, noticeably diminished reflectance of visible light. Also disclosed is a coated particulate TiO2 material, wherein the material has an average crystal size of greater than 0.40 ?m, and the coating comprises one or more oxide material; this provides low levels of photocatalytic activity that were previously unattainable. This coated TiO2 material may be provided in a composition.

Abstract: A coloured composition comprising: a) NIR scattering TiO2 particulate material with an average crystal size of greater than 0.40 ?m and a particle size distribution such that 30% or more of the particles are less than 1 ?m; b) one or more non-white colorant; wherein the particulate material and the non-white colorant are dispersed within a vehicle. This material with a large crystal size has unusually high reflection of NIR radiation and, simultaneously, noticeably diminished reflectance of visible light. Also disclosed is a coated particulate TiO2 material, wherein the material has an average crystal size of greater than 0.40 ?m, and the coating comprises one or more oxide material; this provides low levels of photocatalytic activity that were previously unattainable. This coated TiO2 material may be provided in a composition.

Abstract: A colored composition comprising: a) NIR scattering TiO2 particulate material with an average crystal size of greater than 0.40 ?m and a particle size distribution such that 30% or more of the particles are less than 1 ?m; b) one or more non-white colorant; wherein the particulate material and the non-white colorant are dispersed within a vehicle. This material with a large crystal size has unusually high reflection of NIR radiation and, simultaneously, noticeably diminished reflectance of visible light. Also disclosed is a coated particulate TiO2 material, wherein the material has an average crystal size of greater than 0.40 ?m, and the coating comprises one or more oxide material; this provides low levels of photocatalytic activity that were previously unattainable. This coated TiO2 material may be provided in a composition.

Abstract: The invention provides a layered colored solar reflective system comprising (i) a first layer comprising a first particulate material having a substantially rutile crystal habit and an average particle size within a range of about 0.55 ?m and about 0.95 ?m, dispersed in a vehicle and (ii) a second layer positioned on at least a portion of the first layer, the second layer comprising a second particulate material having a substantially rutile crystal habit and an average particle size within a range of about 1.0 ?m and 1.6 ?m, and a colorant dispersed in a vehicle. The layered color solar reflective system may be applied onto a structure to provide a dark, intense color as well as enhanced total solar reflectance.

Abstract: A process for forming a coating layer on a substrate comprising: depositing a thin film of a concentrated aqueous nano titania sol onto at least a portion of the substrate; exposing at least a portion of the deposited film to a sufficient amount of ultraviolet radiation in order to gel the film of aqueous sol; and drying at least a portion of the gelled portion, thereby forming the coating layer.

Abstract: The invention provides a layered colored solar reflective system comprising (i) a first layer comprising a first particulate material having a substantially rutile crystal habit and an average particle size within a range of about 0.55 ?m and about 0.95 ?m, dispersed in a vehicle and (ii) a second layer positioned on at least a portion of the first layer, the second layer comprising a second particulate material having a substantially rutile crystal habit and an average particle size within a range of about 1.0 ?m and 1.6 ?m, and a colorant dispersed in a vehicle. The layered color solar reflective system may be applied onto a structure to provide a dark, intense color as well as enhanced total solar reflectance.

Abstract: The present invention provides a colored solar reflective system comprising (1) a particulate material having a substantially rutile crystal habit and having an average particle size of between about 0.5 ?m and about 2.0 ?m and (2) an organic pigment having a maximum absorption coefficient of about 5,000 mm?1 or greater in the visible light region, a maximum scattering coefficient of about 500 mm?1 or less in the visible light region and an average absorption coefficient of about 50 mm?1 or less in the infrared region. The solar reflective system, which may be used in a coating composition or as a composition from which articles can be formed, exhibits a dark, intense color while also providing enhanced total solar reflectance.

Abstract: The invention provides a composition imparting UV protective capability comprising an effect coated particulate material having a substantially rutile crystal habit and an average particle size greater than or equal to about 0.5 ?m dispersed in a medium at a concentration within a range of about 1% by volume to about 40% by volume, based on the total volume of composition. The composition may be coloured or non-coloured and applied onto one or more surfaces of a substrate to provide UV light protection without also increasing UV light activated photocatalytic effects which are generally observed.

Abstract: A coloured composition comprising: a) NIR scattering TiO2 particulate material with an average crystal size of greater than 0.40 ?m and a particle size distribution such that 30% or more of the particles are less than 1 ?m; b) one or more non-white colorant; wherein the particulate material and the non-white colorant are dispersed within a vehicle. This material with a large crystal size has unusually high reflection of NIR radiation and, simultaneously, noticeably diminished reflectance of visible light. Also disclosed is a coated particulate TiO2 material, wherein the material has an average crystal size of greater than 0.40 ?m, and the coating comprises one or more oxide material; this provides low levels of photocatalytic activity that were previously unattainable. This coated TiO2 material may be provided in a composition.

Abstract: A method for removing silicon oxide from a surface of a substrate is disclosed. The method includes depositing material onto the silicon oxide (110) and heating the substrate surface to a sufficient temperature to form volatile compounds including the silicon oxide and the deposited material (120). The method also includes heating the surface to a sufficient temperature to remove any remaining deposited material (130).