The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2018
Filed:
Feb. 28, 2013
Bluescope Steel Limited, Melbourne, Victoria, AU;
Shane A. Maclaughlin, New South Wales, AU;
Binbin Xi, New South Wales, AU;
Evan J. Evans, New South Wales, AU;
Edward M. Boge, New South Wales, AU;
Bluescope Steel Limited, Melbourne, Victoria, AU;
Abstract
A coated substrate including: a substrate including a treated layer, a photocatalytic layer, and a protective layer between the photocatalytic layer and the treated layer, the protective layer comprising colloidal particles dispersed in a matrix, the colloidal particles including first and second types of particles that differ in their respective particle size distributions and which together provide a physical barrier by virtue of the first, smaller particles at least partially filling interstices between the second, larger particles and thereby impede photocatalyst derived degradation of the treated layer, the first type of colloid particles comprising hydrolyzed silica based material such as reactive silica condensate particles or polyhedral oligomeric silsesquioxanes, or mixtures thereof, the protective layer having an effect of less than 20 delta E units on the color and gloss of the substrate.