Patent US4841652A successfully refreshed from Google Patents.
US4841652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive sheet
Assignee: EFUESUKEI NO 23-23 HON-CHO ITABASHI-KU TOKYO JAPAN A CORP OF JAPAN KK
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Filing: 1987-01-02
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Granted: 1989-06-27
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Expires: 2007-01-02
Abstract
Abstract An adhesive sheet which comprises a support sheet and an adhesive layer containing a migratory substance, disposed on one side of the support sheet. This adhesive sheet may be applied to many types of articles and will leave behind a dye mark on the article indicating that it has been applied and subsequently removed.
Inventors
- 👤 Hitoshi Sakashita
- 👤 Yoshihisa Mineura
- 👤 Toshihiko Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:10
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/10; G09F3/02; G09F3/0291; G09F3/0292; G09F2003/0264; G09F2003/0267; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10S428/915
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
A pressure-sensitive adhesive sheet, comprising: a support sheet; and a pressure-sensitive adhesive layer containing a migratory dye and being disposed on one side of said support sheet, said pressure-sensitive adhesive layer and said migratory dye being selected so that said migratory dye contained in said pressure-sensitive adhesive layer migrates from said adhesive layer with time into a surface of an article to which the adhesive sheet is attached, leaving a substantially unremovable mark on the surface of the article when the pressure-sensitive adhesive sheet is peeled off the surface of the article where the pressure-sensitive adhesive sheet had been attached.
Claim 2
Dependent Claim
100 words
A pressure-sensitive adhesive sheet, comprising: a support sheet; and a pressure-sensitive adhesive layer containing a migratory dye and being disposed on one side of said support sheet, said pressure-sensitive adhesive layer and said migratory dye being selected so that said migratory dye contained in said pressure-sensitive adhesive layer migrates from said adhesive layer with time into a surface of an article to which the adhesive sheet is attached, leaving a substantially unremovable mark on the surface of the article when the pressure-sensitive adhesive sheet is peeled off the surface of the article where the pressure-sensitive adhesive sheet had been attached.
Claim 3
Dependent Claim
33 words
The adhesive sheet of claim 1, wherein said migratory dye is present in an amount in the range of 0.1 to 10 parts by weight to 100 parts by weight of an adhesive.
Claim 4
Dependent Claim
25 words
The adhesive sheet of claim 1, wherein said migratory the dye is a member selected from the group consisting of sublimation dyes and fluorescent dyes.
Claim 5
Dependent Claim
35 words
The adhesive sheet of claim 1, including a layer to prevent the migration of said migratory dye from said pressure-sensitive adhesive layer to said support sheet interposed between said pressure-sensitive layer and said support sheet.
Claim 6
Dependent Claim
18 words
The adhesive sheet of claim 4, wherein said layer comprises a material possessing a migratory dye resisting property.
Claim 7
Dependent Claim
35 words
The adhesive sheet of claim 4, wherein said layer comprises a member selected from the group consisting of a polyester resin layer, a polycarbonate resin layer, a metal foil layer, and a vapor deposition layer.
Claim 8
Dependent Claim
20 words
The adhesive sheet of claim 6, wherein said layer is a vapor deposition and is more that 300 angstroms thick.
Claim 9
Dependent Claim
38 words
The adhesive sheet of claim 4, wherein said layer to prevent migration comprises a member selected from the group consisting of a polyester resin layer, a polycarbonate resin layer, a metal foil layer, and a vapor deposition layer.
Claim 10
Dependent Claim
16 words
The adhesive sheet of claim 1, wherein said support sheet is comprised of a fragile material.
Claim 11
Dependent Claim
22 words
The adhesive sheet of claim 1, wherein a metallic vapor deposition layer is interposed between said support layer and said adhesive layer.
Claim 12
Dependent Claim
79 words
An adhesive sheet for attachment to an article, comprising: a support sheet; and an adhesive layer containing a migratory dye and being disposed on one side of said support sheet, said adhesive layer and migratory dye being selected so that said migratory dye will transfer from said adhesive layer into a surface of the article to provide a substantially unremovable mark on the article, when said adhesive layer is contacted with the surface of the article and then removed.
Claim 13
Dependent Claim
79 words
An adhesive sheet for attachment to an article, comprising: a support sheet; and an adhesive layer containing a migratory dye and being disposed on one side of said support sheet, said adhesive layer and migratory dye being selected so that said migratory dye will transfer from said adhesive layer into a surface of the article to provide a substantially unremovable mark on the article, when said adhesive layer is contacted with the surface of the article and then removed.
Claim 14
Dependent Claim
33 words
The adhesive sheet of claim 11, wherein said migratory dye is present in an amount in the range of 0.1 to 10 parts by weight to 100 parts by weight of an adhesive.
Claim 15
Dependent Claim
36 words
The adhesive sheet of claim 11, including a layer to prevent the migration of said migratory dye form from said adhesive layer to said support sheet and interposed between said pressure-sensitive layer and said support sheet.
References Cited (Backward Citations)
US2300787A
Cited
US3925584A
Cited
US3950870A
Cited
FR2250456A5
Cited
US4121003A
Cited
US4180929A
Cited
US4184701A
Cited
US4424245A
Cited
US4526405A
Cited
US4661195A
Cited
US4700207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |