Flexible magnet attractant display mat

• US 5,503,891 A
• Filed: 10/25/1994
• Issued: 04/02/1996
• Est. Priority Date: 10/25/1994
• Status: Expired due to Fees

• Current Assignee: Marflex International Inc.
• Original Assignee: Marflex International Inc.
• Inventors: Marshall, Robert A., Marshall, Clarence D.
• Primary Examiner(s): Ahmad, Nasser
• Application Number:
  US08/328,364
• Time in Patent Office: 525 Days
• Field of Search: 428/99, 428/323, 428/425.9, 428/482, 428/522, 428/523, 428/900, 428/694 B, 40/600, 434/430, 434/429, 434/425, 434/281
• US Class Current: 428/99
• CPC Class Codes: B32B 2327/06 PVC, i.e. polyvinylchloride
• CPC Class Codes: B32B 2331/04 Polymers of vinyl acetate, e.g. PVA
• CPC Class Codes: B32B 2333/08 Polymers of acrylic acid esters, e.g. PMA, i.e. polymethylacrylate
• CPC Class Codes: B32B 2333/12 Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/18 characterised by the use of special additives
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 27/306 comprising vinyl acetate or vinyl alcohol (co)polymers
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B43L 1/008 with magnetic action
• CPC Class Codes: Y10S 428/90 Magnetic feature
• CPC Class Codes: Y10T 428/24008 including fastener for attaching to external surface
• CPC Class Codes: Y10T 428/25 Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
• CPC Class Codes: Y10T 428/31609 Particulate metal or metal compound-containing
• CPC Class Codes: Y10T 428/31935 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31938 Polymer of monoethylenically unsaturated hydrocarbon

Abstract

The present invention relates to a display mat for receiving magnetic display symbols, wherein said display mat is flexible and magnet attractant.

Claims

1. A filled and flexible magnet attractant display mat for attracting and retaining permanently magnetic symbols, said display mat comprising a magnet attractant substrate formed of a ferrous/ferrite powder filler, uniformly dispersed throughout a polymeric binder such that said powder filler comprises 60 to 96 percent by weight of said substrate, said powder filler comprises atomized spherically shaped particles and wherein said substrate is rollable for storage and transport, said magnet attractant substrate is in the range of approximately 0.250 to 0.750 mm thickness, and said mat further comprising a display surface composed of polyvinyl chloride overlying and adhesively bonded to said substrate.

2. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein said powder filler comprises at least 85 percent by weight of said display mat.

3. A highly filled and flexible magnet attractant display mat as recited in claim 2 comprising approximately 10 percent by weight ethylene-vinyl-acetate, and approximately 88 percent by weight powder filler.

4. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein said polymeric binder is a low melting point copolymer selected from the group consisting of ethylene-vinyl-acetate, ethylene-methyl-acrylate, ethylene-ethyl-acrylate, ethylene-butyl-acrylate, and ethylene-methacrylicacid.

5. A highly filled and flexible magnet attractant display mat as recited in claim 2, wherein said polymeric binder is a low melting point copolymer selected from the group consisting of ethylene-vinyl-acetate, ethylene-methyl-acrylate, ethylene-ethyl-acrylate, ethylene-butyl-acrylate, and ethylene-methacrylicacid.

6. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein said overlying display surface is composed of an extrusion laminate of semi-rigid plastics.

7. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein the overlying display surface is a sheet of polyvinylchloride having a thickness in the range of 0.175 mm to 0.750 mm.

8. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein said overlying display surface is adhesively bonded to said display mat using a 50 micron dry mount acid-free adhesive film.

9. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein said overlying display surface is adhesively bonded to said display mat using a curing adhesive.

10. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein said overlying display surface is adhesively bonded to said display mat using a thermoplastic adhesive.

11. A highly filled and flexible magnet attractant display mat as recited in claim 1, wherein said overlying display surface is either transparent, colored, or white.