Multilayer polymer film with additional coatings or layers

• US 6,459,514 B2
• Filed: 10/18/1999
• Issued: 10/01/2002
• Est. Priority Date: 06/26/1995
• Status: Expired due to Term

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Weber, Michael F., Ouderkirk, Andrew J., Stover, Carl A., Jonza, James M., Gilbert, Laurence R., Merrill, William W.
• Primary Examiner(s): Chen, Vivian
• Application Number:
  US09/419,946
• Publication Number:
  US 20010008700A1
• Time in Patent Office: 1,079 Days
• Field of Search: 428/212, 428/480, 428/343, 359/493, 359/494, 359/500, 359/1, 359/2, 359/15, 359/13, 359/487, 359/488
• US Class Current: 359/15
• CPC Class Codes: B32B 2307/5825 Tear resistant
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2551/00 Optical elements
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• CPC Class Codes: G02B 5/26 Reflecting filters G02B5/28 takes precedence
• CPC Class Codes: G02B 5/287 comprising at least one layer of organic material
• CPC Class Codes: G02B 5/305 including organic materials, e.g. polymeric layers
• CPC Class Codes: Y10S 428/91 Product with molecular orientation
• CPC Class Codes: Y10T 428/24942 including components having same physical characteristic in differing degree
• CPC Class Codes: Y10T 428/24975 No layer or component greater than 5 mils thick
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/31786 Of polyester [e.g., alkyd, etc.]

Abstract

A multilayer optical film comprising: (a) an optical stack comprising alternating layers of at least a first polymer and a second polymer; and (b) a holographic image.

Claims

1. A multilayer optical film comprising:

(a) an optical stack including alternating layers of at least a first polymer and a second polymer; and

(b) a holographic image.

2. The multilayer optical film of claim 1, wherein the holographic image is provided in a skin layer.

3. The multilayer optical film of claim 1, wherein the holographic image is provided in a hard polymer.

4. The multilayer optical film of claim 1, wherein the holographic image is provided in an adhesive.

5. The multilayer optical film of claim 1, wherein the holographic image layer is the outermost layer of the film.

6. The multilayer optical film of claim 1, wherein the holographic image layer is not the outermost layer of the film.

7. The multilayer optical film of claim 1, wherein the film is reflective.

8. The multilayer optical film of claim 1, wherein the film is a polarizer.