US4769264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On page fragrance sampling device
Assignee: 3M Co
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Filing: 1987-07-15
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Granted: 1988-09-06
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Expires: 2007-07-15
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
- 👤 Robert L. Dreger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:51
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/0291; G09F3/0292; A; A45; A45D; A45D40/00; A45D40/0087; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/14; Y10T428/1405; Y10T428/15; Y10T428/24; Y10T428/24777; Y10T428/24793; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249984; Y10T428/249994; Y10T428/249995; Y10T428/249997
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
191 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 100 micrometers, and (4) said bottom sheet having an 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 1.0 g/cm and less than 90 g/cm at 20° C. and 50% relative humidiy, said adhesive on an exterior surface having two areas which surround a non-adhesive area, said non-adhesive area having a cut or perforation in the bottom sheet which enables said bottom sheet to be separated into two parts in the non-adhesive area or at the edge of the non-adhesive area.
Claim 2
Dependent Claim
191 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 100 micrometers, and (4) said bottom sheet having an 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 1.0 g/cm and less than 90 g/cm at 20° C. and 50% relative humidiy, said adhesive on an exterior surface having two areas which surround a non-adhesive area, said non-adhesive area having a cut or perforation in the bottom sheet which enables said bottom sheet to be separated into two parts in the non-adhesive area or at the edge of the non-adhesive area.
Claim 3
Dependent Claim
34 words
The label of claim 1 wherein said bottom sheet has a cut from one exterior edge of the label to another through said non-adhesive area so that the bottom sheet is in two parts.
Claim 4
Dependent Claim
16 words
The label of claim 2 wherein said adhesive on an exterior surface is a pressure-sensitive adhesive.
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 3 wherein said microcapsules have an average diameter between 8 and 30 micrometers.
Claim 7
Dependent Claim
16 words
The device of claim 3 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 viscofier 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
36 words
The label of claim 1 adhered to the surface of an envelope with a flap thereon, the non-adhesive area of said label overlaying the line where the flap is adhered to the body of the envelope.
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
36 words
The label of claim 2 adhered to the surface of an envelope with a flap thereon, the non-adhesive area of said label overlaying the line where the flap is adhered to the body of the envelope.
Claim 15
Dependent Claim
36 words
The label of claim 3 adhered to the surface of an envelope with a flap thereon, the non-adhesive area of said label overlaying the line where the flap is adhered to the body of the envelope.
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 pressure-sensitive adhesive.
References Cited (Backward Citations)
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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) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |