| 摘要 |
<p>A COLOURED COMPOSITION COMPRISING: A) NIR SCATTERING TiO2 PARTICULATE MATERIAL WITH AN AVERAGE CRYSTAL SIZE OF GREATER THAN 0.40 ?M AND A PARTICULATE 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. (FIGURE 2)</p> |
