Patent US3987225A successfully refreshed from Google Patents.
US3987225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry transfer materials characterized by transfer-facilitating discontinuity in the adhesive layer thereof
Assignee: ET Marler Ltd
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Filing: 1975-01-14
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Granted: 1976-10-19
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Expires: 1995-01-14
Abstract
Abstract A dry transfer sheet of the kind described comprising a carrier sheet, at least one design carried by said carrier sheet and releasably bonded thereto, and a layer of shrinkable pressure sensitive adhesive covering said design and overlapping said carrier sheet to stress the edges of the design to cause at least a reduction of bonding between the edges of the design and the carrier sheet.
Inventors
- 👤 Kenneth James Reed
- 👤 David Wellings Pointon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:52
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1733; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/15; Y10T428/24; Y10T428/24802; Y10T428/28; Y10T428/2848
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
95 words
A dry transfer sheet comprising a carrier sheet, at least one design carried by said carrier sheet and releasably bonded thereto, and a layer of pressure sensitive adhesive covering said design and overlapping said carrier sheet which has been shrunk to stress the edges of the design to cause a reduction of bonding between the edges of the design and the carrier sheet, wherein the layer of adhesive has contracted to cause a discontinuity between the adhesive applied to the design and the adhesive applied to the carrier sheet at the periphery of the design.
Claim 2
Dependent Claim
95 words
A dry transfer sheet comprising a carrier sheet, at least one design carried by said carrier sheet and releasably bonded thereto, and a layer of pressure sensitive adhesive covering said design and overlapping said carrier sheet which has been shrunk to stress the edges of the design to cause a reduction of bonding between the edges of the design and the carrier sheet, wherein the layer of adhesive has contracted to cause a discontinuity between the adhesive applied to the design and the adhesive applied to the carrier sheet at the periphery of the design.
Claim 3
Dependent Claim
25 words
A sheet as claimed in claim 1 wherein the material of the design is sufficiently resilient to yield under the stress of the contracted adhesive.
Claim 4
Dependent Claim
25 words
A sheet as claimed in claim 1 wherein the bonding between the edge portion of the design and the carrier sheet is reduced to zero.
Claim 5
Dependent Claim
28 words
A sheet as claimed in claim 1 wherein the carrier sheet is an unsupported plastic film, a coated paper or film, or a film/paper or a film/film laminate.
Claim 6
Dependent Claim
26 words
A sheet as claimed in claim 1 wherein the design is produced from printing ink based on a polymer plasticiser composition having flexibility and film-forming properties.
Claim 7
Dependent Claim
38 words
A sheet as claimed in claim 1 wherein the ink polymer is selected from the group consisting of cellulose nitrate, polyvinylchloride, polyvinylacetate polymers and copolymers, acrylic polymers and copolymers, chlorinated polyvinyl chloride, alkyd resins, epoxy resins and polyurethanes.
Claim 8
Dependent Claim
32 words
A sheet as claimed in claim 1, wherein the layer of adhesive contiguous the edge of the design is highly stressed by the incorporation of a high concentration of dispersed solid particles.
Claim 9
Dependent Claim
33 words
A sheet as claimed in claim 1 wherein the adhesive layer is selected from the group consisting of polyvinylalkyl ethers, natural rubber, synthetic rubbers, acrylic polymers and copolymers, polyisobutylene silicone polymers and polyurethane.
Claim 10
Dependent Claim
32 words
A sheet as claimed in claim 8 wherein the adhesive includes a proportion of a modifying resin selected from the group consisting of terpene resins, ketone resins, ester gum and hydrocarbon resin.
Claim 11
Dependent Claim
29 words
A sheet as claimed in claim 8 wherein the adhesive includes a proportion of wax selected from the group consisting of microcrystalline was, hydrogenated castor oil and polyethylene wax.
References Cited (Backward Citations)
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US3432376A
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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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |