Substrate which is protected against organic pollution

• US 8,318,290 B2
• Filed: 11/30/2005
• Issued: 11/27/2012
• Est. Priority Date: 12/02/2004
• Status: Expired due to Fees

• Current Assignee: Saint-Gobain Glass France (Compagnie De Saint-Gobain)
• Original Assignee: Saint-Gobain Glass France (Compagnie De Saint-Gobain)
• Inventors: Garrec, Ronan, Messere, Rino
• Primary Examiner(s): Higgins, Gerard
• Assistant Examiner(s): POLLEY, CHRISTOPHER M
• Application Number:
  US11/720,762
• Publication Number:
  US 20100062227A1
• Time in Patent Office: 2,554 Days
• Field of Search: 428/192, 428/210, 428/157, 428/172, 428/429, 428/432, 522/045
• US Class Current: 428/157
• CPC Class Codes: C03C 17/2456 Coating containing TiO2
• CPC Class Codes: C03C 17/32 with synthetic or natural resins C03C17/30 takes precedence
• CPC Class Codes: C03C 19/00 Surface treatment of glass, not in the form of fibres or filaments, by mechanical means sand-blasting, grinding, or polishing glass B24
• CPC Class Codes: C03C 2217/212 TiO2
• CPC Class Codes: C03C 2217/71 Photocatalytic coatings
• CPC Class Codes: E04B 1/68 of joints, e.g. expansion joints packing for joints in roads or airfields E01C11/02; expansion joints for bridges E01D19/06; sealing joints between foundation piles E02D5/14; joints in foundation structures E02D29/16; devices for sealing the spaces or joints between roof-covering elements E04D1/36; sealing joints between roof-covering elements E04D3/38; construction of joints for flooring or floor layers composed of a number of similar elements E04F15/02005; construction of joints for flooring or floor layers made of masses in situ E04F15/14
• CPC Class Codes: E06B 3/56 by means of putty, cement, or adhesives only E06B3/64 E06B3/5427 take precedence
• CPC Class Codes: Y10T 428/24488 Differential nonuniformity at margin
• CPC Class Codes: Y10T 428/24612 Composite web or sheet
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/24926 including ceramic, glass, porcelain or quartz layer
• CPC Class Codes: Y10T 428/31612 As silicone, silane or siloxane

Abstract

The invention relates to a substrate (1) which is equipped with a mastic (3) along at least part of the periphery thereof, said mastic comprising silicon-type components. The invention is characterized in that a barrier to the migration of the silicons (5, 7, 8) is disposed on the surface (2) of the substrate (1).

Claims

1. A protected substrate, comprising a substrate composed of glass or ceramic,

a thin film coating that imparts a hydrophilic character to said substrate on at least one part of a face of said substrate,

a mastic comprising silicone on at least a part of a periphery of said substrate;

and

on a surface of the thin film coating positioned near the periphery as a barrier to migration of the silicone of the mastic, an elastomeric barrier comprising a silyl-terminated polyether.

2. The substrate of claim 1, wherein the thin film coating comprises at least partially crystalline titanium oxide.

3. The substrate of claim 2, wherein the at least partially crystalline titanium oxide is titanium dioxide in anatase form.

4. The substrate of claim 1, wherein the silyl-terminated polyether does not comprise a silicone plasticizer.

5. The substrate of claim 1, wherein the silyl-terminated polyether is in the form of a bead.

6. The substrate of claim 5, wherein the elastomer barrier comprising the silyl-terminated polyether is in direct contact with the mastic comprising silicone.

7. A protected substrate composed of glass or ceramic, comprising

a substrate,

a thin film coating that imparts a hydrophilic character to said substrate on at least one part of a face of said substrate,

a mastic comprising silicone on at least a part of a periphery of said substrate;

and

a groove or notch positioned near the periphery that acts as a barrier to migration of the silicone of the mastic onto the thin film coating.

8. The substrate of claim 7, wherein the thin film coating comprises at least partially crystalline titanium oxide.

9. The substrate of claim 8, wherein the at least partially crystalline titanium oxide is titanium dioxide in anatase form.