GRANULES

• US 20110027533A1
• Filed: 03/11/2009
• Published: 02/03/2011
• Est. Priority Date: 03/13/2008
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Kramer, Bruce W., Kennedy, Keith
• Application Number:
  US12/921,881
• Publication Number:
  US 20110027533A1
• Time in Patent Office: Days
• US Class Current: 428/143
• CPC Class Codes: E04D 1/00 Roof covering by making use of tiles, slates, shingles, or other small roofing elements roofing supports or underlayers E04D12/00
• CPC Class Codes: E04D 2001/005 the roofing elements having a granulated surface
• CPC Class Codes: Y02A 30/254 Roof garden systems; Roof coverings with high solar reflectance
• CPC Class Codes: Y02B 80/00 Architectural or constructional elements improving the thermal performance of buildings
• CPC Class Codes: Y10T 428/24372 Particulate matter

Abstract

The present application is directed to a structure comprising a substrate and a structural layer on the substrate. The structural layer comprises a surface opposite the substrate. The structural layer comprises a binder and granules. Generally, the granules are bonded to the substrate with the binder. The granules have a diameter less than 420 micrometers and an average diameter of between 250 and 300 micrometers. Generally, the granule is exposed above the surface of the structural layer.

Claims

1. A structure comprising a substrate and a structural layer on the substrate, the structural layer comprising:

a surface opposite the substrate;

a binder; and

granules, wherein the granules have a diameter less than 420 micrometers and the granules have an average diameter of between 250 and 300 micrometers and the granule is exposed above the surface of the structural layer.

2. The structure of claim 1 wherein the granule has a base material comprising a mineral rock.

3. The structure of claim 1 wherein the granule comprises a color coating.

4. The structure of claim 1 wherein the granule has an average diameter of about 266 micrometers.

5. The structure of claim 1 wherein less than 5% by weight of the granules have a diameter less than 210 micrometers.

6. The structure of claim 1 wherein the structure is a tile selected from the group consisting of a metal tile, a concrete tile, and a polymeric roofing tile.

8. The structure of claim 6 wherein the tile comprises two layers and one layer comprises the granules.

9. The structure of claim 6 wherein the granules are dispersed through the entire thickness of the tile.

10. The structure of claim 1 wherein the structure is horizontal or vertical.

12. The structure of claim 1 wherein the structure is a roof, optionally wherein the structure is a metal roof.

14. The structure of claim 1 wherein the structure is a roofing shingle, optionally wherein the roofing shingle is a metal shingle, or an asphalt shingle and the binder is asphalt.

17. The structure of claim 6 wherein the structure is a metal tile.

18. The structure of claim 17 wherein the binder is an adhesive selected from the group consisting of an acrylic adhesive, a urethane adhesive, an epoxy adhesive, a vinyl adhesive, and a silicone adhesive.

25. The structure of claim 1 wherein the structure is selected from the group consisting of a wall, a floor, an interior construction surface, and an exterior construction surface.

29. The structure of claim 1 wherein the binder layer is less than 260 micrometers thick.

31. The structure of claim 1 comprising a film layer between the substrate and the binder.

32. The structure of claim 1 wherein the granules are oil-free.

33. The structure of claim 1 further comprising a photocatalytic particle.

34. The article of claim 1 wherein the exposed granules are at least 50% above the surface of the structural layer.

35. The article of claim 1 wherein the exposed surface of the granule is solar reflective.

7. (canceled)

11. (canceled)

13. (canceled)

15-16. -16. (canceled)

19-24. -24. (canceled)

26-28. -28. (canceled)

30. (canceled)