US3896249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adhesive transfers
Assignee: Johnson Matthey PLC
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Filing: 1973-04-04
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Granted: 1975-07-22
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Expires: 1993-04-04
Abstract
Abstract Self-adhesive transfers according to the present invention are suitable for the application of decorative designs to heat resistant bases such as pottery, glass and metal. The design consists essentially of a backing sheet, a release layer on at least a part of each surface of the backing sheet, a design layer applied to one release layer and including one or more layers of printing ink formulations and a layer of high tack pressure sensitive adhesive applied to the design layer. The release layers are preferably made from polysiloxane materials. The printing ink formulations may contain pigments where it is required to use the transfer for decorative purposes or conductive, resistive, insulating, dielectric or semi-conductive materials where it is required to use the transfers for making electrical components. A plurality of transfers may be stacked with the high tack pressure sensitive adhesive layers uppermost. The release layer of the adjacent transfer in contact therewith offers a relatively small surface area, thereby permitting easy removal of transfers from the stack.
Inventors
- 👤 Robert Alan Keeling
- 👤 John Garrick Priest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:37
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/20; H05K3/207; B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1733; B44C1/1737; B44C1/1741; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; H05K1/16; H05K1/167; H05K2203/00; H05K2203/01; H05K2203/0147; H05K2203/0156; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/28; Y10T428/2839; Y10T428/2848
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
202 words
IN A FLEXIBLE, SELF-ADHESIVE TRANSFER FOR APPLYING ADESIGN TO A BASE, SAID TRANSFER INCLUDING A BACKING SHEET, RELEASE LAYERS, A DESIGN LAYER, AND A LAYER OF HIGH TACK PRESSURE-SENSITIVE ADHESIVE, TWO OR MORE TRANSFERS BEING ADAPTED TO BE STACKED ONE DIRECTLY UPON ANOTHER PRIOR TO USE, THE IMPROVEMENTS COMPRISING: A. A BACKING SHEET HAVING OPPOSITELY FACING FIRST AND SECOND SURFACES, A FIRST OF SAID SURFACES BEING SMOOTHER THAN THE SECOND SURFACE, B. A RELEASE LAYER ON AT LEAST A PART OF EACH SURFACE OF SAID BACKING SHEET, EACH RELEASE LAYER BEING OF THE SAME COMPOSITION BUT OF DIFFERENT RELATIVE SMOOTHNESS, SAID FIRST AND SECOND SURFACES OF THE BACKING SHEET IMPARTING THEIR RESPECTIVE DIFFERENCE IN SMOOTHNESS TO THE RELEASE LAYER THEREUPON, C. A DESIGN LAYER APPLIED TO THE SMOOTHER RELEASE LAYER, AND D. A LAYER OF HIGH TACK, PRESSURE-SENSITIVE ACRYLIC RESIN ADHESIVE APPLIED TO THE DESIGN LAYER, SAID TRANSFER BEING ADAPTED TO BE STACKED WITH THE ADHESIVE LAYER IN CONTACT WITH THE LESS SMOOTH RELEASE LAYER OF AN ADJACENT TRANSFER, SAID ADHESIVE LAYER HAVING A LOWER ADHESION TO THE LESS SMOOTH RELEASE LAYER THAN THE ADHESION OF THE SMOOTHER RELEASE LAYER TO SAID DESIGN LAYER, THEREBY REDUCING BLOCKING AND RENDERING ADJACENT TRANSFERS SEPARABLE.
Claim 2
Dependent Claim
202 words
IN A FLEXIBLE, SELF-ADHESIVE TRANSFER FOR APPLYING ADESIGN TO A BASE, SAID TRANSFER INCLUDING A BACKING SHEET, RELEASE LAYERS, A DESIGN LAYER, AND A LAYER OF HIGH TACK PRESSURE-SENSITIVE ADHESIVE, TWO OR MORE TRANSFERS BEING ADAPTED TO BE STACKED ONE DIRECTLY UPON ANOTHER PRIOR TO USE, THE IMPROVEMENTS COMPRISING: A. A BACKING SHEET HAVING OPPOSITELY FACING FIRST AND SECOND SURFACES, A FIRST OF SAID SURFACES BEING SMOOTHER THAN THE SECOND SURFACE, B. A RELEASE LAYER ON AT LEAST A PART OF EACH SURFACE OF SAID BACKING SHEET, EACH RELEASE LAYER BEING OF THE SAME COMPOSITION BUT OF DIFFERENT RELATIVE SMOOTHNESS, SAID FIRST AND SECOND SURFACES OF THE BACKING SHEET IMPARTING THEIR RESPECTIVE DIFFERENCE IN SMOOTHNESS TO THE RELEASE LAYER THEREUPON, C. A DESIGN LAYER APPLIED TO THE SMOOTHER RELEASE LAYER, AND D. A LAYER OF HIGH TACK, PRESSURE-SENSITIVE ACRYLIC RESIN ADHESIVE APPLIED TO THE DESIGN LAYER, SAID TRANSFER BEING ADAPTED TO BE STACKED WITH THE ADHESIVE LAYER IN CONTACT WITH THE LESS SMOOTH RELEASE LAYER OF AN ADJACENT TRANSFER, SAID ADHESIVE LAYER HAVING A LOWER ADHESION TO THE LESS SMOOTH RELEASE LAYER THAN THE ADHESION OF THE SMOOTHER RELEASE LAYER TO SAID DESIGN LAYER, THEREBY REDUCING BLOCKING AND RENDERING ADJACENT TRANSFERS SEPARABLE.
Claim 3
Dependent Claim
14 words
A transfer according to claim 1, wherein each release layer comprises a polysiloxane material.
Claim 4
Dependent Claim
27 words
A transfer according to claim 2, wherein the polysiloxane material has the general formula (R2SiO)n where R is a methyl group and n is a positive integer.
Claim 5
Dependent Claim
18 words
A transfer according to claim 3, wherein at least one methyl group is replaced by another alkyl group.
Claim 6
Dependent Claim
28 words
A transfer according to claim 2, wherein the backing sheet comprises one or more layers of flexible material selected from the group consisting of polyethylene and polyethylene/paper laminates.
Claim 7
Dependent Claim
18 words
A transfer according to claim 5, wherein the polyethylene has a density of between 0.92 and 0.935 gm/cm3.
Claim 8
Dependent Claim
46 words
A transfer according to claim 1, wherein the design layer includes one or more layers of printing ink formulations comprising a pigment and a base selected from the group consisting of nitro cellulose, cellulose esters, modified rosin, alkyds, cyclic ketone condensates, maleics, amine, and acrylic resins.
Claim 9
Dependent Claim
14 words
A transfer according to claim 7, wherein the printing ink formulation includes a plasticiser.
Claim 10
Dependent Claim
25 words
A transfer according to claim 8, wHerein the plasticiser is selected from the group consisting of di-octyl phthalate, di-butyl phthalate, and butyl phthalyl butyl glycollate.
Claim 11
Dependent Claim
14 words
A transfer according to claim 8, wherein the printing ink formulation includes a surfactant.
Claim 12
Dependent Claim
22 words
A transfer according to claim 10, wherein the surfactant is selected from the group consisting of stearic acid, glyceryl monostearate, and stearamide.
Claim 13
Dependent Claim
37 words
A transfer according to claim 7, wherein the printing ink formulation comprises 64.3 percent cadmium red ceramic enamel, 14.2 percent polybutyl methacrylate, 8.4 percent xylene, 9.5 percent amyl lactate, 1.8 percent di-octyl phthalate, and 1.8 percent stearamide.
Claim 14
Dependent Claim
39 words
A transfer according to claim 7, wherein the printing ink formulation comprises 61.5 percent lead antimony yellow ceramic enamel, 16.0 percent 2-ethyl hexyl acrylate, 18.8 percent amyl lactate, 1.9 percent butyl phthalyl butyl glycollate, and 1.8 percent stearic acid.
Claim 15
Dependent Claim
37 words
A transfer according to claim 7, wherein the printing ink formulation comprises 67.3 percent cobalt blue ceramic enamel, 13.5 percent polybutyl methacrylate/methyl methacrylate copolymer, 15.5 percent diacetone alcohol, 2.0 percent di-butyl phthalate, and 1.7 percent glyceryl monostearate.
Claim 16
Dependent Claim
36 words
A transfer according to claim 7, wherein the printing ink formulation comprises 18.0 percent isoindolinone yellow pigment, 36.0 percent polybutyl methacrylate, 18.0 percent xylene, 24.0 percent amyl lactate, 1.0 percent di-octyl phthalate, and 3.0 percent stearamide.
Claim 17
Dependent Claim
37 words
A transfer according to claim 7, wherein the printing ink formulation comprises 15.0 percent isoindolinone orange pigment, 40.5 percent 2-ethyl hexyl acrylate, 40.5 percent amyl lactate, 1.5 percent butyl phthalyl butyl glycollate, and 2.5 percent stearic acid.
Claim 18
Dependent Claim
36 words
A transfer according to claim 7, wherein the printing ink formulation comprises 10.0 percent phthalocyanine blue pigment, 43.5 percent polybutyl methacrylate/methyl methacrylate copolymer, 43.5 percent diacetone alcohol, 1.0 percent di-butyl phthalate, and 2.0 percent glyceryl monostearate.
Claim 19
Dependent Claim
13 words
A transfer according to claim 1, wherein the adhesive is an acrylic-vinylacetate copolymer.
Claim 20
Dependent Claim
25 words
a transfer according to claim 1, wherein the adhesive comprises 22.25 percent acrylic resin, 50 percent alcohol, 23.15 percent ethyl acetate, and 4.6 percent hexane.
Claim 21
Dependent Claim
40 words
a transfer according to claim 1, wherein the adhesive comprises 20.5 - 21.8 percent acrylic resin, 2.0 - 7.5 percent sucrose acetate iso-butyrate, 46.25 - 49.0 percent alcohol, 21.5 - 22.7 percent ethyl acetate, and 4.25 - 4.5 percent hexane.
Claim 22
Dependent Claim
22 words
A transfer according to claim 1, wherein the adhesive comprises 44 percent acrylic resin, 5 percent modifier, and 51 percent 2-ethyl-n-butyl alcohol.
Claim 23
Dependent Claim
24 words
A transfer according to claim 1, wherein the adhesive comprises 40 percent acrylic resin, 20 percent sucrose acetate iso-butyrate, and 40 percent aliphatic solvent.
Claim 24
Dependent Claim
22 words
A transfer according to claim 1, wherein the adhesive comprises 56 percent acrylic resin, 5 percent modifier, and 39 percent nonyl alcohol.
Claim 25
Dependent Claim
26 words
A transfer according to claim 1, wherein the adhesive comprises 46.5 percent acrylic resin, 4.5 percent modifier, 19.0 percent butyl lactate, and 30.0 percent white spirit.
Claim 26
Dependent Claim
19 words
A transfer according to claim 1, wherein the design layer is a conductive, resistive, insulating, dielectric or semiconductive material.
Claim 27
Dependent Claim
31 words
A transfer according to claim 25 wherein the conductive or resistive material is a noble metal, a metal from Group VIII of the Periodic Table, alloys, or compositions containing these metals.
Claim 28
Dependent Claim
19 words
A transfer according to claim 25, wherein the conductive or resistive Material is an alloy of manganese and molybdenum.
Claim 29
Dependent Claim
28 words
A transfer according to claim 26, wherein the conductive or resistive material includes a bonding agent selected from the group consisting of silica, lead borosilicate, and bismuth oxychloride.
Claim 30
Dependent Claim
13 words
A transfer according to claim 25, wherein the dielectric material is a titanate.
Claim 31
Dependent Claim
22 words
A transfer according to claim 29, wherein the dielectric material is selected from the group consisting of barium titanate and bismuth titanate.
Claim 32
Dependent Claim
24 words
A transfer according to claim 30, wherein the dielectric material includes a bonding agent selected from the group consisting of silica and lead borosilicate.
Claim 33
Dependent Claim
23 words
A transfer according to claim 25, wherein the insulating material is a vitrifiable material or a material which nucleates and crystallizes on cooling.
Claim 34
Dependent Claim
28 words
A transfer according to claim 25, wherein the semiconductor material is selected from the group consisting of cadmium selenide, cadmium sulfide, lead sulfide, zinc sulfide, and mixtures thereof.
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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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |