Biocidal roofing granules, roofing products including such granules, and process for preparing same
First Claim
Patent Images
1. A process for preparing biocidal roofing granules, the process comprising:
- (a) providing a mineral core;
(b) preparing a gel-forming inorganic sol coating medium;
(c) providing at least one biocidal photocatalytic metal oxide;
(d) coating the mineral core with the inorganic sol coating medium;
(e) forming a porous coating layer on the mineral core from the inorganic sol coating medium, the porous coating layer having a pore network; and
(f) disposing the at least one photocatalytic metal oxide in the pore network.
4 Assignments
0 Petitions
Accused Products
Abstract
Biocidal roofing granules are prepared by providing a mineral core and at least one biocidal photocatalytic metal oxide. A gel-forming inorganic coating medium is prepared and used to coat the mineral core to form a coating layer having a porous network on the mineral core, and the at least one biocidal photocatalytic metal oxide is disposed in the porous network.
174 Citations
31 Claims
-
1. A process for preparing biocidal roofing granules, the process comprising:
-
(a) providing a mineral core; (b) preparing a gel-forming inorganic sol coating medium; (c) providing at least one biocidal photocatalytic metal oxide; (d) coating the mineral core with the inorganic sol coating medium; (e) forming a porous coating layer on the mineral core from the inorganic sol coating medium, the porous coating layer having a pore network; and (f) disposing the at least one photocatalytic metal oxide in the pore network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A process for preparing roofing materials, the process comprising:
-
(a) providing a base material; (b) preparing a gel-forming inorganic coating medium; (c) providing at least one biocidal photocatalytic metal oxide; (d) coating the base material with the inorganic coating medium; (e) forming a porous coating layer on the mineral core from the inorganic coating medium, the porous coating layer having a pore network; and (f) disposing the at least one photocatalytic metal oxide in the pore network. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
-
Specification