Patent US4652473A successfully refreshed from Google Patents.
US4652473A
Expired / Lapsed
US
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Tamper-resistant packaging tape
Assignee: Discovery Therapeutics Inc
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Filing: 1984-12-10
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Granted: 1987-03-24
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Expires: 2004-12-10
Abstract
Abstract A pressure sensitive adhesive tape capable of providing tamper detection to capped containers and comprising a backing having an outer layer with sufficiently high tensile strength to maintain its integrity when removed from the tape and an inner layer adjacent the adhesive which is thin and deformable, wherein the outer layer can be removed from the inner layer without disrupting the adhesive bond of the inner layer to the pressure sensitive adhesive.
Inventors
- 👤 Hak-Rhim Han
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:02
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D63/00; B65D63/10; B65D63/1009; B65D55/026; B65D55/06; B65D55/08; B65D55/0818; B65D55/0854; C; C09; C09J; C09J7/00; C09J7/20; C09J7/29; C09J2301/00; C09J2301/10; C09J2301/16; C09J2301/162; Y; Y10; Y10S; Y10S428/00; Y10S428/916; Y10T; Y10T428/00; Y10T428/14; Y10T428/1452; Y10T428/28
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
96 words
A pressure sensitive adhesive tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising an outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a plastic inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive.
Claim 2
Dependent Claim
96 words
A pressure sensitive adhesive tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising an outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a plastic inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive.
Claim 3
Dependent Claim
16 words
The tape of claim 1 wherein said outer layer is capable of being rendered heat shrinkable.
Claim 4
Dependent Claim
19 words
The tape of claim 1 wherein said inner layer has an elongation from about 200 to about 600 percent.
Claim 5
Dependent Claim
13 words
The tape of claim 1 wherein said inner layer is colorless and transparent.
Claim 6
Dependent Claim
24 words
The tape of claim 1 wherein said outer layer is selected from the group consisting of polyvinyl chloride, polystyrene, styrene/butadiene copolymers, polypropylene and copolyesters.
Claim 7
Dependent Claim
23 words
The tape of claim 1 wherein said inner layer is selected from the group consisting of polyethylene, ethylene/vinyl acetate copolymers and ethylene/propylene copolymers.
Claim 8
Dependent Claim
23 words
The tape of claim 6 wherein said ethylene/vinyl acetate copolymer contains from about 7 to about 15 percent by weight vinyl acetate therein.
Claim 9
Dependent Claim
27 words
The tape of claim 1 wherein the peel adhesion between said outer and said inner layers is from about 0.035 to about 3.5 oz. per 1/2 inch.
Claim 10
Dependent Claim
23 words
The tape of claim 1 wherein the adhesion value of said adhesive is between about 20 and about 85 oz. per 1/2 inch.
Claim 11
Dependent Claim
124 words
A sealed container comprising an open-mouthed container having a cap sealed thereon, and adhesively attached to said cap and said container at the location of said cap a pressure sensitive tape, said tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising an outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a plastic inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive.
Claim 12
Dependent Claim
124 words
A sealed container comprising an open-mouthed container having a cap sealed thereon, and adhesively attached to said cap and said container at the location of said cap a pressure sensitive tape, said tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising an outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a plastic inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive.
Claim 13
Dependent Claim
16 words
The container of claim 10 wherein said outer layer is capable of being rendered heat shrinkable.
Claim 14
Dependent Claim
19 words
The container of claim 10 wherein said inner layer has an elongation from about 200 to about 600 percent.
Claim 15
Dependent Claim
13 words
The container of claim 10 wherein said inner layer is colorless and transparent.
Claim 16
Dependent Claim
24 words
The container of claim 10 wherein said outer layer is selected from the group consisting of polyvinyl chloride, polystyrene, styrene/butadiene copolymers, polypropylene and copolyesters.
Claim 17
Dependent Claim
23 words
The container of claim 10 wherein said inner layer is selected from the group consisting of polyethylene, ethylene/vinyl acetate copolymers and ethylene/propylene copolymers.
Claim 18
Dependent Claim
23 words
The container of claim 15 wherein said ethylene/vinyl acetate copolymer contains from about 7 to about 15 percent by weight vinyl acetate therein.
Claim 19
Dependent Claim
27 words
The container of claim 10 wherein the peel adhesion between said outer and said inner layers is from about 0.035 to about 3.5 oz. per 1/2 inch.
Claim 20
Dependent Claim
23 words
The container of claim 10 wherein the adhesion value of said adhesive is between about 20 and about 85 oz. per 1/2 inch.
Claim 21
Independent Claim
148 words
A method for providing tamper detection to a sealed container wherein the seal is provided by a cap over the open mouth of said container, said method comprising adhesively attaching to said cap and said container a pressure sensitive tape, said tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising a heat shrinkable outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a plastic inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive; heating of said tape to cause shrinkage thereof around said cap and container.
Claim 22
Independent Claim
148 words
A method for providing tamper detection to a sealed container wherein the seal is provided by a cap over the open mouth of said container, said method comprising adhesively attaching to said cap and said container a pressure sensitive tape, said tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising a heat shrinkable outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a plastic inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive; heating of said tape to cause shrinkage thereof around said cap and container.
Claim 23
Dependent Claim
19 words
The method of claim 19 wherein said inner layer has an elongation from about 200 to about 600 percent.
Claim 24
Dependent Claim
13 words
The method of claim 19 wherein said inner layer is colorless and transparent.
Claim 25
Dependent Claim
24 words
The method of claim 19 wherein said outer layer is selected from the group consisting of polyvinyl chloride, polystyrene, styrene/butadiene copolymers, polypropylene and copolyesters.
Claim 26
Dependent Claim
23 words
The method of claim 19 wherein said inner layer is selected from the group consisting of polyethylene, ethylene/vinyl acetate copolymers and ethylene/propylene copolymers.
Claim 27
Dependent Claim
23 words
The method of claim 23 wherein said ethylene/vinyl acetate copolymer contains from about 7 to about 15 percent by weight vinyl acetate therein.
Claim 28
Dependent Claim
26 words
The method of claim 19 wherein the peel adhesion between said inner and outer layers is from about 0.035 to about 3.5 oz. per 1/2 inch.
Claim 29
Dependent Claim
23 words
The method of claim 19 wherein the adhesion value of said adhesive is between about 20 and about 85 oz. per 1/2 inch.
Claim 30
Dependent Claim
111 words
A unitary package comprising individual boxes having been unitized by the attachment thereto of a pressure sensitive tape, said tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising an outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a polymeric inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive.
Claim 31
Dependent Claim
111 words
A unitary package comprising individual boxes having been unitized by the attachment thereto of a pressure sensitive tape, said tape comprising a backing with a pressure sensitive adhesive thereon, said backing comprising an outer layer having a sufficiently high tensile strength to maintain its integrity when removed from said tape and a polymeric inner layer, adjacent said adhesive, which is thin and stretchable or deformable, the adhesion between said outer and inner layers being sufficiently low when compared to the adhesion between said adhesive and said inner layer, whereby said outer layer may be removed from said inner layer without disrupting the adhesive bond between said inner layer and said adhesive.
Claim 32
Dependent Claim
13 words
The package of claim 27 wherein said inner layer is colorless and transparent.
Claim 33
Dependent Claim
25 words
The package of claim 27 wherein said outer layer is selected from the group consisting of polyvinyl chloride, polystyrene, styrene/butadiene copolymers, polypropylene, polyester and copolyesters.
Claim 34
Dependent Claim
26 words
The package of claim 27 wherein said inner layer is selected from the group consisting of polyvinyl acetate, vinyl acetate/maleate copolymers and vinyl chloride/vinyl acetate copolymers.
Claim 35
Dependent Claim
23 words
The package of claim 30 wherein said vinyl acetate copolymers contain from about 4 to about 96 percent by weight vinyl acetate therein.
Claim 36
Dependent Claim
26 words
The package of claim 27 wherein the peel adhesion between said outer and inner layers is from about 0.035 to about 3.5 oz. per 1/2 inch.
Claim 37
Dependent Claim
23 words
The package of claim 27 wherein the adhesion value of said adhesive is between about 20 and about 85 oz. per 1/2 inch.
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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) | 1990-03-23 | 1990-09-22 | 1991-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-23 | 1994-09-22 | 1995-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-23 | 1998-09-22 | 1999-03-24 | $7700.00 | Window Closed / Lapsed |