ANTI-GRAFFITI LAMINATE WITH VISUAL INDICIA

• US 20200131840A1
• Filed: 10/26/2018
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Graffiti Shield, Inc.
• Original Assignee: Graffiti Shield, Inc.
• Inventors: Green, Jeffrey, Schuch, Michael
• Granted Patent: US 11,002,063 B2
• Time in Patent Office: Days
• CPC Class Codes: B29C 2793/0018 for making a hole
• CPC Class Codes: B29C 2793/0036 Slitting
• CPC Class Codes: B29C 2793/0045 Perforating
• CPC Class Codes: B29C 2793/0054 partially cutting through the material
• CPC Class Codes: B29C 65/76 Making non-permanent or releasable joints
• CPC Class Codes: B29C 66/0326 Cutting, e.g. by using waterjets, or perforating using heat B29C66/0346
• CPC Class Codes: B29C 66/0346 Cutting or perforating, e.g. burning away by using a laser or using hot air simultaneously joining and severing using a fluid B29C65/7471; simultaneously welding and severing using radiation B29C65/7473
• CPC Class Codes: B29C 66/45 Joining of substantially the whole surface of the articles methods or apparatus for laminating B32B37/00
• CPC Class Codes: B32B 2250/24 All layers being polymeric
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/748 Releasability
• CPC Class Codes: B32B 2310/0843 using laser
• CPC Class Codes: B32B 2605/006 Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/16 specially treated, e.g. irradiated
• CPC Class Codes: B32B 3/02 characterised by features of form at particular places, e.g. in edge regions non-uniform thickness B32B3/263
• CPC Class Codes: B32B 3/266 characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B32B 7/02 Physical, chemical or physicochemical properties
• CPC Class Codes: B32B 7/06 permitting easy separation
• CPC Class Codes: B32B 7/12 : using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: C08J 5/18 : Manufacture of films or sheets
• CPC Class Codes: E06B 3/30 : Coverings, e.g. protecting against weather, for decorative purposes for door leaves E06B3/7001
• CPC Class Codes: E06B 5/10 : for protection against air-raid or other war-like action; for other protective purposes

Abstract

An anti-graffiti window film covering system that includes multiple polymeric film layers. Each layer includes a unique visual indicia to identify the number of sheets remaining in the system.

Claims

1. A polymeric film for placement on a vehicle window comprising:

a first film having a first surface with a surface area and an opposite second surface with a second surface area, where the first film also contains a crescent shaped aperture on an edge of the first film and a visual indicia etched in close proximity to the crescent shaped aperture;

a second film having a first surface with a surface area and an opposite second surface with a second surface area, where the second film also contains a crescent shaped aperture on an edge of the first film and a visual indicia that is different than the etched number on the first film, the etched number is in close proximity to the crescent shaped aperture;

wherein the first and second film are releasably connected via adhesive contained between the first film and the second film; and

wherein the first etched number is only etched on the film and the second number is only etched in the second film.

2. The polymeric film of claim 1 further including a third film having a first surface with a surface area and an opposite second surface with a second surface area, where the third film also contains a crescent shaped aperture on an edge of the third film and a laser etched number, that is different than the etched number on the first film or the second film, the etched number is in close proximity to the crescent shaped aperture.

3. The polymeric film of claim 1 where in the first visual indicia is a number.

4. The polymeric film of claim 3 where in the second visual indicia is a number different than the number on the first layer.

5. A method of providing multiple ablations on a multi layer polymeric film, the method comprising:

ablating a first layer with a first etch;

ablating a second layer with a second etch that is different than the first etch;

ablating a third layer with a third etch that is different than the first etch and the second etch;

wherein the first layer overlies the second layer and wherein the second layer overlies the third layer and wherein all of the etches are visible from the first layer when the layers are stacked on top of each other.

6. The method of claim 5 where in the laser etches are straight line segments.

7. The method of claim 5 where in the laser etches are numbers.

8. The method of claim 5 further comprising ablating additional layers.