US4606956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On page fragrance sampling device
Assignee: 3M Co
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Filing: 1985-06-07
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Granted: 1986-08-19
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Expires: 2005-06-07
Abstract
Abstract Microencapsulated materials are released by rupturing of an adhesive layer on a substrate containing the capsules. At least two sheets are secured by the adhesive layer containing the microcapsules. At least one of said two sheets has an adhesive on the outer face of said at least one sheet.
Inventors
- 👤 Jack W. Charbonneau
- 👤 Keith E. Relyea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:22
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; A; A45; A45D; A45D40/00; A45D40/0087; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/5605; A61F13/5611; A61K; A61K8/00; A61K8/02; A61K8/11; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; A61Q; A61Q13/00; B; B01; B01J; B01J13/00; B01J13/02; B01J13/025; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61K2800/80; A61K2800/87; G09F2003/023; G09F2003/0241; G09F2003/028; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/14; Y10T428/1405; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249972
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
142 words
A label for application to a surface, said label comprising (1) at least two sheets, a top sheet and a bottom sheet, bound by an adhesive composition layer, (2) said adhesive composition layer containing microcapsules with a liquid within the shell of the microcapsules, (3) said microcapsules having an average diameter between 4 and 80 micrometers, and (4) said bottom sheet having a pressure-sensitive adhesive on an exterior surface the cohesive strength of the adhesive composition layer being less than the strength of the bond between said adhesive composition and the faces of said sheets, the tensile rupture strength of said microcapsules being such that the cohesive failure of the adhesive results in breakage of the microcapsules, and the tensile rupture strength between said two sheets being at least 1.0g/cm and less than 90 g/cm at 20° C. and 50% relative humidity.
Claim 2
Dependent Claim
142 words
A label for application to a surface, said label comprising (1) at least two sheets, a top sheet and a bottom sheet, bound by an adhesive composition layer, (2) said adhesive composition layer containing microcapsules with a liquid within the shell of the microcapsules, (3) said microcapsules having an average diameter between 4 and 80 micrometers, and (4) said bottom sheet having a pressure-sensitive adhesive on an exterior surface the cohesive strength of the adhesive composition layer being less than the strength of the bond between said adhesive composition and the faces of said sheets, the tensile rupture strength of said microcapsules being such that the cohesive failure of the adhesive results in breakage of the microcapsules, and the tensile rupture strength between said two sheets being at least 1.0g/cm and less than 90 g/cm at 20° C. and 50% relative humidity.
Claim 3
Dependent Claim
19 words
The device of claim 1 wherein said adhesive composition comprises said microcapsules, a polymeric binder and a viscosity increaser.
Claim 4
Dependent Claim
32 words
The device of claim 2 wherein said surfaces are on flexible sheets of coated paper and said viscosity increaser comprise from 0.25 to 25% by dry weight of said adhesive composition layer.
Claim 5
Dependent Claim
21 words
The device of claim 1 wherein said sheets are coated paper coated on both faces with a resinous binder and pigment.
Claim 6
Dependent Claim
17 words
The device of claim 1 wherein said microcapsules have an average diameter between 8 and 30 micrometers.
Claim 7
Dependent Claim
16 words
The device of claim 1 wherein said pressure-sensitive adhesive has a strippable cover sheet attached thereto.
Claim 8
Dependent Claim
16 words
The device of claim 4 wherein said pressure-sensitive adhesive has a strippable cover sheet attached thereto.
Claim 9
Dependent Claim
42 words
The device of claim 2 wherein said microcapsules comprise gelatin and are between 21 and 100% by weight of said adhesive composition, said binder comprises between 0 and 78.75% by weight and said viscosity increaser comprises between 0.25 and 12% by weight.
Claim 10
Dependent Claim
26 words
The device of claim 4 wherein said microcapsules comprise between 50 and 85% by volume of said adhesive composition and are formed of a urea-aldehyde polymer.
Claim 11
Dependent Claim
24 words
The device of claim 5 wherein said microcapsules comprise between 50 and 85% by volume of adhesive composition and comprise a polymeric shell material.
Claim 12
Dependent Claim
23 words
The device of claim 1 wherein said top sheet has perforated lines thereon to enable removal of individual portions of said top sheet.
Claim 13
Dependent Claim
23 words
The device of claim 1 wherein said liquid is an odor releasing material and the shell of said microcapsule comprises a urea-formaldehyde resin.
Claim 14
Dependent Claim
24 words
The device of claim 2 wherein said liquid is an odor releasing material and said adhesive on an exterior surface is a thermal adhesive.
Claim 15
Dependent Claim
24 words
The device of claim 3 wherein said liquid is an odor releasing material and said adhesive on an exterior surface is a thermal adhesive.
Claim 16
Dependent Claim
34 words
The device of claim 1 wherein the image that appears on the outer surface of the top sheet is the same as the image that appears on the interior surface of the bottom sheet.
Claim 17
Dependent Claim
24 words
The device of claim 6 wherein said liquid is an odor releasing material and said adhesive on an exterior surface is a thermal adhesive.
Claim 18
Dependent Claim
24 words
The device of claim 8 wherein said liquid is an odor releasing material and said adhesive on an exterior surface is a thermal adhesive.
Claim 19
Dependent Claim
33 words
The device of claim 1 wherein the image that appears on the outer surface of the top sheet is different from the image that appears on the interior surface of the bottom sheet.
Claim 20
Dependent Claim
33 words
The device of claim 4 wherein the image that appears on the outer surface of the top sheet is different from the image that appears on the interior surface of the bottom sheet.
Claim 21
Dependent Claim
33 words
The device of claim 6 wherein the image that appears on the outer surface of the top sheet is different from the image that appears on the interior surface of the bottom sheet.
References Cited (Backward Citations)
US3016308A
Cited
US3503783A
Cited
GB1156725A
Cited
US3516941A
Cited
US3516846A
Cited
US3623659A
Cited
US3936567A
Cited
US4087376A
Cited
US4058434A
Cited
GB2006709A
Cited
US4186743A
Cited
US4201404A
Cited
GB2041319A
Cited
GB2048206A
Cited
GB2062570A
Cited
US4397142A
Cited
US4514457A
Cited
US4487801A
Cited
US4528226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |