US4451522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transferable enamel sheet and method and apparatus for its fabrication
Assignee: Nordipa AG
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Filing: 1981-10-27
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Granted: 1984-05-29
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Expires: 2001-10-27
Abstract
Abstract A transferable enamel sheet and the process for producing it is disclosed, which consists of a carrier film, a release layer applied thereon, a paint or enamel layer and an adhesive layer whereby a neutralization layer of wax-type consistency, preferably carnauba wax is applied to the release layer which is of the dimethyl-siloxane type (silicone). It is possible to preform two types of transferable enamel sheets. One of them is characterized by the adhesive layer between the neutralization layer and the paint or enamel layer. In this case the enamel paint itself is used as a removable coating, which can immediately be adhered to the surface to be touched up or painted. The other type is characterized by a buffer layer, preferably acrylic resin coated on the neutralization layer and by sharp defined enamel-characters being printed on the buffer layer with an adhesive layer on the outer side to transfer the characters to any surface.
Inventors
- 👤 Hubertus M. de Vroom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:31
CPC Classifications
B; B05; B05D; B05D7/00; B05D1/00; B05D1/28; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1733; B44C1/1737; B44C1/1741; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/28; Y10T428/2839; Y10T428/2843; Y10T428/2848; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31652; Y10T428/31663; Y10T428/31801; Y10T428/31855; Y10T428/31909
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
74 words
In a transferable enamel sheet formed as a laminate including a carrier film, a silicone release layer applied thereon, an enamel layer and a pressure sensitive adhesive layer, the improvement of a neutralization layer of wax-like consistency applied to the release layer, said neutralization layer being comprised of a mixture of branched and unbranched hydrocarbon chains with an average length of 30 carbon atoms and a COOH group at several locations in the chain.
Claim 2
Dependent Claim
74 words
In a transferable enamel sheet formed as a laminate including a carrier film, a silicone release layer applied thereon, an enamel layer and a pressure sensitive adhesive layer, the improvement of a neutralization layer of wax-like consistency applied to the release layer, said neutralization layer being comprised of a mixture of branched and unbranched hydrocarbon chains with an average length of 30 carbon atoms and a COOH group at several locations in the chain.
Claim 3
Dependent Claim
19 words
A transferable enamel sheet in accordance with claim 1 wherein said neutralization layer comprises a layer of carnauba wax.
Claim 4
Dependent Claim
19 words
A transferable enamel sheet in accordance with claim 1, wherein said carrier film comprises clear polyethylene terephthalate polyester film.
Claim 5
Dependent Claim
30 words
A transferable enamel sheet in accordance with any of claims 1, 2 or 3, wherein the composition of the adhesive layer comprises a solution capable of dissolving the neutralization layer.
Claim 6
Dependent Claim
17 words
A transferable enamel sheet in accordance with claim 4, wherein said enamel paint comprises automotive enamel paint.
Claim 7
Dependent Claim
27 words
A transferable enamel sheet in accordance with claim 5, wherein said enamel paint layer comprises acrylate resin-based automotive enamel paint and said adhesive layer comprises acrylate glue.
Claim 8
Dependent Claim
34 words
A transferable enamel sheet according to claim 1 wherein said adhesive and enamel layers both comprise cross-linking agents, and said cross-linking agents of said adhesive are co-reacted with the cross-linking agents of said enamel.
Claim 9
Dependent Claim
14 words
A transferable enamel sheet according of claim 7 wherein said cross-linking agents comprise isocyanate.
Claim 10
Dependent Claim
32 words
A transferable enamel sheet in accordance with claim 1 wherein said wax-type neutralization layer is covered by a buffer layer which is covered by the enamel layer covered by the adhesive layer.
Claim 11
Dependent Claim
45 words
A transferable enamel sheet in accordance with claim 9, wherein the enamel paint layer is applied to the buffer layer in the form of symbols, and the adhesive layer is applied to said enamel symbols in a shape which corresponds to that of the symbols.
Claim 12
Dependent Claim
38 words
A transferable enamel sheet in accordance with claim 10, wherein the adhesive is provided with a bonding primer for improved adherence to the enamel paint symbols, and the primer comprises a solution capable of dissolving the neutralization layer.
Claim 13
Dependent Claim
34 words
A transferable enamel sheet in accordance with claim 9, wherein the composition of the buffer layer is compatible with the composition of the enamel paint layer as well as the neutralization and silicone layer.
Claim 14
Dependent Claim
15 words
A transferable enamel sheet in accordance with claim 9 wherein said buffer layer is transparent.
Claim 15
Dependent Claim
18 words
A transferable enamel sheet in accordance with claim 9 wherein said buffer layer comprises an acrylic resin layer.
Claim 16
Dependent Claim
20 words
A transferable enamel sheet in accordance with claim 14, wherein said enamel paint layer comprises an acrylic resin-based enamel paint.
Claim 17
Dependent Claim
28 words
A transferable enamel sheet in accordance with claim 1, wherein said release layer comprises a long siloxane chain wherein the silicon atom is substituted with two methyl groups.
Claim 18
Dependent Claim
15 words
The transferable enamel sheet of claim 1 wherein the enamel layer is an enamel paint.
Claim 19
Dependent Claim
52 words
In a transferable enamel sheet formed as a liminate including a carrier film, a silicone release layer applied thereto, and enamel layer and a pressure sensitive adhesive layer, the improvement comprising a neutralization layer comprised of a mixture of branched and unbranched hydrocarbon chains, of wax-like consistency applied to said release layer.
Claim 20
Dependent Claim
52 words
In a transferable enamel sheet formed as a liminate including a carrier film, a silicone release layer applied thereto, and enamel layer and a pressure sensitive adhesive layer, the improvement comprising a neutralization layer comprised of a mixture of branched and unbranched hydrocarbon chains, of wax-like consistency applied to said release layer.
Claim 21
Dependent Claim
55 words
In a transferable enamel sheet formed as a laminate including a carrier film, a release layer of silicone applied thereon, a layer of enamel paint, and a pressure sensitive adhesive layer, the improvement comprising a neutralization layer comprised of a mixture of branched and unbranched hydrocarbon chains of wax-like consistency applied to said release layer.
Claim 22
Dependent Claim
55 words
In a transferable enamel sheet formed as a laminate including a carrier film, a release layer of silicone applied thereon, a layer of enamel paint, and a pressure sensitive adhesive layer, the improvement comprising a neutralization layer comprised of a mixture of branched and unbranched hydrocarbon chains of wax-like consistency applied to said release layer.
Claim 23
Dependent Claim
18 words
The transferable enamel sheet of claim 19, wherein said carrier film comprises a film of a synthetic resin.
Claim 24
Dependent Claim
73 words
In a transferable enamel sheet formed as a liminate including a carrier film, a release layer comprising a long siloxane chain wherein the silicon atom is substituted with two methyl groups, the release layer being applied thereon, a layer of an enamel paint and a pressure sensitive adhesive layer, the improvement comprising a neutralization layer comprised of a mixture of branched and unbranched hydrocarbon chains of wax-like consistency applied to said release layer.
Claim 25
Dependent Claim
73 words
In a transferable enamel sheet formed as a liminate including a carrier film, a release layer comprising a long siloxane chain wherein the silicon atom is substituted with two methyl groups, the release layer being applied thereon, a layer of an enamel paint and a pressure sensitive adhesive layer, the improvement comprising a neutralization layer comprised of a mixture of branched and unbranched hydrocarbon chains of wax-like consistency applied to said release layer.
Claim 26
Dependent Claim
18 words
The transferable enamel sheet of claim 21, wherein said carrier film comprises a film of a synthetic resin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |