US4763931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive material for preventing reuse
Assignee: Daimatsu Kagaku Kogyo Co Ltd
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Filing: 1985-09-26
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Granted: 1988-08-16
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Expires: 2005-09-26
Abstract
Abstract An adhesive material which protects against being reused, which comprises a released sheet (12), an adhesive layer (14) laminated on one main surface of said release sheet (12), a second layer (16) which can be cut or torn by fingers and laminated on said adhesive layer (14), an adhesion layer (18) laminated on said second layer (16), and a first layer (20) laminated and adhered temporarily on said adhesion layer (18). According to the present invention, the first and second layers are adhered temporarily by the adhesion layer in such a state that re-adhering is hardly possible. Thus when attempting to tear off the adhering material, the first layer is separated from the second layer and re-adhering is impossible.
Inventors
- 👤 Tadashi Matsuguchi
- 👤 Noboru Matsuguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:59
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/10; B; B32; B32B; B32B7/00; B32B7/04; B32B7/06; B31; B31D; B31D1/00; B31D1/02; B31D1/021; B32B15/00; B32B15/04; B32B15/12; B32B15/20; B32B27/00; B32B27/06; B32B27/10; B32B29/00; B32B29/002; B32B7/12; G09F3/02; G09F3/0291; G09F3/0292; B32B2311/00; B32B2311/24; B32B2317/00; B32B2317/12; B32B2519/00; Y; Y10; Y10S; Y10S428/00; Y10S428/916
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
154 words
A label for preventing reuse comprising a first layer, a first adhesion layer formed on said first layer, a second layer laminated on the adhesion layer tentatively bonded, a second adhesive layer formed on either main surface of said second layer, and an adhesive power reducing layer formed in a portion of either surface of said second adhesive layer which lowers the adhesive power of second adhesive layer and characterized in that, when the adhesive power of second adhesive layer where it is covered by the adhesive power reducing layer is represented by (a), the force required for breaking said second layer is represented by (b), the force required for peeling said second layer from said first layer is represented by (c) and the adhesive power of said second adhesive layer where it is not covered by the adhesive power reducing layer is represented by (d), the following formulae wherein: a<c, b<d are satisfied.
Claim 2
Dependent Claim
154 words
A label for preventing reuse comprising a first layer, a first adhesion layer formed on said first layer, a second layer laminated on the adhesion layer tentatively bonded, a second adhesive layer formed on either main surface of said second layer, and an adhesive power reducing layer formed in a portion of either surface of said second adhesive layer which lowers the adhesive power of second adhesive layer and characterized in that, when the adhesive power of second adhesive layer where it is covered by the adhesive power reducing layer is represented by (a), the force required for breaking said second layer is represented by (b), the force required for peeling said second layer from said first layer is represented by (c) and the adhesive power of said second adhesive layer where it is not covered by the adhesive power reducing layer is represented by (d), the following formulae wherein: a<c, b<d are satisfied.
Claim 3
Dependent Claim
15 words
The label in accordance with claim 1, wherein said first layer comprises a synthetic film.
Claim 4
Dependent Claim
15 words
The label in accordance with claim 2, wherein said first layer comprises a polyester film.
Claim 5
Dependent Claim
13 words
The label in accordance with claim 1, wherein said first layer comprises paper.
Claim 6
Dependent Claim
21 words
The label in accordance with claim 1, wherein said first layer comprises a printed layer formed on the main surface thereof.
Claim 7
Dependent Claim
15 words
The label in accordance with claim 1, wherein said second layer comprises a metal layer.
Claim 8
Dependent Claim
15 words
The label in accordance with claim 6, wherein said metal layer comprises a metal foil.
Claim 9
Dependent Claim
19 words
The label in accordance with claim 7, wherein said second layer comprises a layer formed by laminating aluminum foils.
Claim 10
Dependent Claim
20 words
The label in accordance with claim 6, wherein said metal layer comprises a synthetic resin layer mixed with metal powder.
Claim 11
Dependent Claim
16 words
The label in accordance with claim 9, wherein said second layer comprises a colored resin layer.
Claim 12
Dependent Claim
22 words
The label in accordance with claim 1, which further comprises a printed layer formed on one main surface of said second layer.
Claim 13
Dependent Claim
23 words
The label in accordance with claim 1, which further comprises a layer formed with one main surface of said second layer being colored.
Claim 14
Dependent Claim
17 words
The label in accordance with claim 1, wherein said second layer comprises a breakable synthetic resin film.
Claim 15
Dependent Claim
16 words
The label in accordance with claim 1, wherein said first adhesion layer is coated with wax.
Claim 16
Dependent Claim
18 words
The label in accordance with claim 1, wherein said first adhesion layer comprises a layer coated with paraffin.
Claim 17
Dependent Claim
21 words
The label in accordance with claim 1, wherein said first adhesion layer comprises a resin layer coated with a synthetic resin.
Claim 18
Dependent Claim
20 words
The label in accordance with claim 16, wherein said resin layer comprises a resin layer coated with a urethane resin.
Claim 19
Dependent Claim
20 words
The label in accordance with claim 17, wherein said resin layer comprises a resin layer coated with an EVA resin.
Claim 20
Dependent Claim
19 words
The label in accordance with claim 1, wherein said second adhesion layer comprises an adhesion layer coated with adhesives.
Claim 21
Dependent Claim
20 words
The label in accordance with claim 19, wherein said second layer comprises an adhesive layer coated with urethane group adhesives.
Claim 22
Dependent Claim
21 words
The label in accordance with claim 19, wherein said second adhesion layer comprises an adhesive layer coated with polyester group adhesives.
Claim 23
Dependent Claim
26 words
The label in accordance with claim 1, wherein said adhesive power reducing layer is formed by coating wax on the surface of said second adhesive layer.
Claim 24
Dependent Claim
28 words
The label in accordance with claim 1, wherein said adhesive power reducing layer is formed by coating a synthetic resin on the surface of said second adhesive layer.
Claim 25
Dependent Claim
26 words
The label in accordance with claim 1, wherein said adhesive power reducing layer is formed by coating powders on the surface of said second adhesive layer.
Claim 26
Dependent Claim
26 words
The label in accordance with claim 1, wherein said adhesive power reducing layer is formed by pattern coating one main surface of said second adhesive layer.
Claim 27
Dependent Claim
24 words
The label in accordance with claim 1, wherein said second adhesive layer is adhered temporarily with a release sheet on one main surface thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |