# US 2014/0154505 A1 · Graphic article

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- Number: US 2014/0154505 A1
- Document ID: US20140154505A1
- Status: Published application
- Kind: A1
- Application number: 14/232,938
- Filed: 2012-07-31
- Published: 2014-06-05
- Earliest claimed: 2011-08-02
- Assignees: 3M Innovative Properties Company
- Applicants: 3M Innovative Properties Company
- Inventors: Ronald S. Steelman; John A. Nielsen; Keith R. Lyon; Kathleen A. Dennison
- Web page: https://patentgrep.com/patent/US20140154505A1

## CPC

- B32B 27/40: comprising polyurethanes
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 23/08: of synthetic resin
- B32B 23/20: comprising esters
- B32B 27/08: of synthetic resin
- B32B 27/18: characterised by the use of special additives
- B32B 27/22: using plasticisers
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- C08J 7/042: {with two or more layers, where at least one layer of a composition contains a polymer binder}
- C08J 7/043: Improving the adhesiveness of the coatings per se, e.g. forming primers (adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50)
- C08J 7/046: Forming abrasion-resistant coatings; Forming surface-hardening coatings
- C08L 75/06: from polyesters
- B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers
- B32B 2307/4026: within the layer by addition of a colorant, e.g. pigments, dyes
- B32B 2307/412: Transparent
- B32B 2307/54: Yield strength; Tensile strength
- B32B 2419/00: Buildings or parts thereof
- B32B 2605/00: Vehicles
- C08J 2333/12: Homopolymers or copolymers of methyl methacrylate
- C08J 2401/02: Cellulose; Modified cellulose
- C08J 2475/04: Polyurethanes
- Y10T 428/28: Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T 428/31551: Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T 428/31554: Next to second layer of polyamidoester
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The present application is directed to articles useful as graphic films. Specifically, the present application is directed to a multilayer film, at least one layer of the multilayer film comprising a polymer blend comprising a thermoplastic polyurethane and a cellulose ester. In some embodiments, a second layer of the multilayer film comprises thermoplastic polyurethane and the cellulose ester. In some embodiments, a second layer of the multilayer film comprises a material different from the polymer blend.

## Claims

### Claim 1

A multilayer film, at least one layer of the multilayer film comprising a polymer blend comprising a thermoplastic polyurethane and a cellulose ester.

### Claim 2 (depends on 1)

The multilayer film of claim 1 wherein a second layer of the multilayer film comprises thermoplastic polyurethane and the cellulose ester.

### Claim 3 (depends on 1)

The multilayer film of claim 1 wherein a second layer of the multilayer film comprises a material different from the polymer blend.

### Claim 4 (depends on 1)

The multilayer film of claim 1 comprising a pigment in at least one layer of the multilayer film.

### Claim 5 (depends on 1)

The multilayer film of claim 1 comprising a print receptive layer on one major surface of the multilayer film.

### Claim 6 (depends on 1)

The article of claim 1 wherein the cellulose ester is a cellulose acetate butyrate.

### Claim 7 (depends on 1)

The article of claim 1 wherein the cellulose ester is a cellulose acetate propionate.

### Claim 8 (depends on 1)

The article of claim 1 wherein the film comprises a polyester.

### Claim 9 (depends on 1)

The article of claim 1 wherein the film comprises a styrene copolymer.

### Claim 10 (depends on 5)

The article of claim 5 wherein the styrene copolymer is a styrene acrylonitrile copolymer.

### Claim 11 (depends on 1)

The article of claim 1 wherein the film layer comprises a plasticizer.

### Claim 12 (depends on 1)

The article of claim 1 wherein the film layer comprises a poly(meth)acrylate.

### Claim 13 (depends on 1)

The article of claim 1 wherein the film layer is made by a hot melt process.

### Claim 14 (depends on 1)

The article of claim 1 comprising an adhesive layer adjacent the multilayer film.

### Claim 15 (depends on 1)

The article of claim 1 comprising an ink layer adjacent at least one surface of the multilayer film.

### Claim 16 (depends on 1)

The article of claim 1 wherein a second layer of the multilayer film is clear.