US5215809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signature panel and process for producing the same
Assignee: Toppan Inc
•
Filing: 1991-09-18
•
Granted: 1993-06-01
•
Expires: 2011-09-18
Abstract
Abstract The improved process for producing a signature panel comprises the steps of forming on the writing surface of a panel substrate a printed graphic pattern that will change upon exposure to alcohols, organic solvents, bleaching agents and surfactants, and laminating the other surface of the panel substrate with a thermoplastic resin by extrusion or hot melt coating. According to this process, signature panels can be thermocompressed at comparatively low temperatures not only to roll mills of overprint cards using a polyvinyl chloride sheet as an oversheet base but also to card substrates such as PET sheets, metal sheets and glass sheets without causing any adverse effects on the graphic pattern printed on the writing surface of the panel which will change upon exposure to chemicals. <IMAGE>
Inventors
- 👤 Hidehiko Hoso
- 👤 Takahiro Fujiu
- 👤 Takeo Kato
- 👤 Takao Kondou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:52
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/30; B42D25/318; B42D25/40; B42D25/45; B42D25/455; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10S428/915; Y10S428/916; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24901; Y10T428/24934; Y10T428/31
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
46 words
A signature panel comprising a panel substrate having a writing surface carrying a printed graphic pattern that will change upon exposure to organic solvents, bleaching agents and surfactants, and a thermoplastic resin layer provided on the back side of the panel substrate opposite the writing surface.
Claim 2
Dependent Claim
46 words
A signature panel comprising a panel substrate having a writing surface carrying a printed graphic pattern that will change upon exposure to organic solvents, bleaching agents and surfactants, and a thermoplastic resin layer provided on the back side of the panel substrate opposite the writing surface.
Claim 3
Dependent Claim
27 words
A signature panel according to claim 1 wherein said thermoplastic resin layer formed on the back side of the panel substrate has a thickness of 2-50 μm.
Claim 4
Dependent Claim
31 words
A signature panel according to claim 1 wherein said thermoplastic resin is selected from the group consisting of urethane resins, vinyl chloride polymers, urethane copolymers, vinyl chloride copolymers and mixtures thereof.
Claim 5
Dependent Claim
40 words
A signature panel according to claim 3 wherein said urethane resin is a linear random alternating block copolymer that contains a hydroxyl terminated long-chain polyol diisocyanate having a molecular weight of 1,000-3,000 and a chain extender as a main component.
Claim 6
Dependent Claim
28 words
A signature panel according to claim 3 wherein said urethane resin has a chemical equivalent ratio of an isocyanato group to a hydroxyl group of less than unity.
Claim 7
Dependent Claim
21 words
A signature panel according to claim 3 wherein said thermoplastic resin contains vinyl chloride in an amount of 20-60 wt %.
Claim 8
Dependent Claim
33 words
A signature panel according to claim 1 wherein said thermoplastic resin contains at least one copolymer selected from the group consisting of ethylene/vinyl acetate copolymers, ethylene/acrylic acid copolymers, and ethylene/acrylic acid ester copolymers.
Claim 9
Dependent Claim
27 words
A signature panel according to claim 1 wherein said panel substrate is made of a material that is permeable to alcohols, organic solvents, bleaching agents and surfactants.
Claim 10
Dependent Claim
15 words
A signature panel according to claim 7 wherein said thermoplastic resin further contains a tackifier.
Claim 11
Dependent Claim
15 words
A signature panel according to claim 9 wherein said thermoplastic resin further contains a wax.
Claim 12
Dependent Claim
70 words
A card comprising a card substrate and a signature panel affixed to the card substrate, the signature panel comprising a panel substrate having a writing surface carrying a printed graphic pattern that will change upon exposure to organic solvents, bleaching agents and surfactants, and a thermoplastic resin layer provided on the back side of the panel substrate opposite the writing surface and affixing the panel substrate to the card substrate.
Claim 13
Dependent Claim
70 words
A card comprising a card substrate and a signature panel affixed to the card substrate, the signature panel comprising a panel substrate having a writing surface carrying a printed graphic pattern that will change upon exposure to organic solvents, bleaching agents and surfactants, and a thermoplastic resin layer provided on the back side of the panel substrate opposite the writing surface and affixing the panel substrate to the card substrate.
Claim 14
Dependent Claim
26 words
A card according to claim 11 wherein said thermoplastic resin layer formed on the back side of the panel substrate has a thickness of 2-50 μm.
Claim 15
Dependent Claim
30 words
A card according to claim 11 wherein said thermoplastic resin is selected from the group consisting of urethane resins, vinyl chloride polymers, urethane copolymers, vinyl chloride copolymers and mixtures thereof.
Claim 16
Dependent Claim
39 words
A card according to claim 13 wherein said urethane resin is a linear random alternating block copolymer that contains a hydroxyl terminated long-chain polyol diisocyanate having a molecular weight of 1,000-3,000 and a chain extender as a main component.
Claim 17
Dependent Claim
27 words
A card according to claim 13 wherein said urethane resin has a chemical equivalent ratio of an isocyanato group to a hydroxyl group of less than unity.
Claim 18
Dependent Claim
20 words
A card according to claim 13 wherein said thermoplastic resin contains vinyl chloride in an amount of 20-60 wt %.
Claim 19
Dependent Claim
32 words
A card according to claim 11 wherein said thermoplastic resin contains at least one copolymer selected from the group consisting of ethylene/vinyl acetate copolymers, ethylene/acrylic acid copolymers, and ethylene/acrylic acid ester copolymers.
Claim 20
Dependent Claim
27 words
A signature panel according to claim 17 wherein said thermoplastic resin further contains at least one material selected from the group of a tackifier and a wax.
Claim 21
Dependent Claim
27 words
A signature panel according to claim 11 wherein said panel substrate is made of a material that is permeable to alcohols, organic solvents, bleaching agents and surfactants.
References Cited (Backward Citations)
FR1216920A
Cited
US3545380A
Cited
DE2100682A1
Cited
FR2129198A5
Cited
US4092449A
Cited
US4051295A
Cited
DE2631246A1
Cited
FR2372476A1
Cited
DE2801015A1
Cited
EP0149542A2
Cited
EP0176403A1
Cited
US4627642A
Cited
DE3440653A1
Cited
EP0250658A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-31 | 1996-11-30 | 1997-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-31 | 2000-11-30 | 2001-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-31 | 2004-11-30 | 2005-06-01 | $7700.00 | Window Closed / Lapsed |