摘要:
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 μm 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.
摘要:
A colored composition comprising: a) NIR scattering TiO2 particulate material with an average crystal size of greater than 0.40 μm and a particle size distribution such that 30% or more of the particles are less than 1 μm; 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 μm, 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.
摘要:
A coloured composition comprising: a) NIR scattering TiO2 particulate material with an average crystal size of greater than 0.40 μm and a particle size distribution such that 30% or more of the particles are less than 1 μm; 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 μm, 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.
摘要:
A composite particulate pigmentary material is disclosed which comprises an association of at least two chemically distinct materials in which the particles of one material carry a positive surface charge and the particles of the second material carry a negative surface charge and particles are held in association as a result of these surface charges. Also disclosed is a method for preparing composite particulate pigmentary material comprising forming aqueous dispersions of two particulate materials under conditions in which the surface charges of the particles of the two materials are of different signs and mixing the dispersions. Typical materials useful for preparing the composite include inorganic pigments, fillers and extenders and organic polymeric microspheres. The product is useful as a pigment in, for example, paints, inks, paper and plastics.
摘要:
A composite particulate pigmentary material is disclosed which comprises an association of at least two chemically distinct materials in which the particles of one material carry a positive surface charge and the particles of the second material carry a negative surface charge and particles are held in association as a result of these surface charges. Also disclosed is a method for preparing composite particulate pigmentary material comprising forming aqueous dispersions of two particulate materials under conditions in which the surface charges of the particles of the two materials are of different signs and mixing the dispersions. Typical materials useful for preparing the composite include inorganic pigments, fillers and extenders and organic polymeric microspheres. The product is useful as a pigment in, for example, paints, inks, paper and plastics.
摘要:
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.
摘要:
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 μm and about 2.0 μm 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.
摘要:
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 μm and about 0.95 μm, 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 μm and 1.6 μm, 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.
摘要:
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 μm and about 0.95 μm, 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 μm and 1.6 μm, 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.
摘要:
A multiple port connector for multi-contact, universally jointed, power and/or signal connector devices including a housing providing a plurality of universal port units, preferably providing for the attachment of electrical and/or signal devices to the universal port units in parallel.