Patent US4837072A successfully refreshed from Google Patents.
US4837072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossing foil
Assignee: Leonhard Kurz Stiftung and Co KG
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Filing: 1987-05-21
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Granted: 1989-06-06
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Expires: 2007-05-21
Abstract
Abstract An embossing foil such as a hot embossing foil includes a backing foil which is a thermoplastic polyester triple-layer foil comprising a central polyester layer which has a lower melting point than the other two polyester layers on respective sides thereof, and a decorative layer on the backing foil, comprising at least one layer of lacquer and possibly an adhesive layer. Provided at the surface of the backing foil which is towards the decorative layer is a three-dimensional patterning.
Inventors
- 👤 Horst Kraetschmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:24
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/36; B32B3/00; B32B3/26; B32B3/28; B32B15/00; B32B15/04; B32B15/08; B32B15/09; B32B7/00; B32B7/04; B32B7/06; B32B7/12; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B44C1/1729; B44C3/00; B44C3/08; B44C3/085; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/24917; Y10T428/24942; Y10T428/2495; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/28; Y10T428/2848; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31786
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
89 words
An embossing foil, which comprises: a decorative layer comprising at least a layer of lacquer and a layer of adhesive; a further layer between said lacquer layer and said adhesive layer, said further layer comprising a metal layer or a color layer; and a thermoplastic polyester triple-layer backing foil formed of outer, central and inner polyester layers, said central polyester layer having a lower melting point than said outer and inner polyester layers, an inside surface of said backing foil having a three-dimensional patterning disposed towards said decorative layer.
Claim 2
Dependent Claim
89 words
An embossing foil, which comprises: a decorative layer comprising at least a layer of lacquer and a layer of adhesive; a further layer between said lacquer layer and said adhesive layer, said further layer comprising a metal layer or a color layer; and a thermoplastic polyester triple-layer backing foil formed of outer, central and inner polyester layers, said central polyester layer having a lower melting point than said outer and inner polyester layers, an inside surface of said backing foil having a three-dimensional patterning disposed towards said decorative layer.
Claim 3
Dependent Claim
17 words
An embossing foil as set forth in claim 1 wherein said further layer is a metal layer.
Claim 4
Dependent Claim
17 words
An embossing foil as set forth in claim 1 wherein said further layer is a color layer.
Claim 5
Dependent Claim
25 words
An embossing foil as set forth in claim 1 wherein said inner polyester layer of said backing foil is thinner than said outer polyester layer.
Claim 6
Dependent Claim
20 words
An embossing foil as set forth in claim 1 wherein said three-dimensional patterning is the negative representation of an engraving.
Claim 7
Dependent Claim
24 words
An embossing foil as set forth in claim 1 wherein said central polyester layer is between about 4 μm and 10 μm in thickness.
Claim 8
Dependent Claim
20 words
An embossing foil as set forth in claim 6 wherein said central polyester layer is about 7.5 μm in thickness.
Claim 9
Dependent Claim
23 words
An embossing foil as set forth in claim 1 wherein said backing foil is between about 24 μm and 30 μm in thickness.
Claim 10
Dependent Claim
19 words
An embossing foil as set forth in claim 8 wherein said backing foil is about 27.5 μm in thickness.
Claim 11
Dependent Claim
138 words
An embossing foil, which comprises: a backing foil comprising first, second and third thermoplastic polyester layers in a sandwiched construction, said first layer defining a first surface of said backing foil and said third layer defining a second surface of said backing foil, said second layer disposed between said first and third layers having a lower melting point than said first and third layers, said second surface of said backing foil having a three-dimensional patterning; a separating layer on said second surface of said backing foil; a decorative layer composition on said separating layer comprised of a layer of lacquer adjoining said separating layer, a further layer on said lacquer layer and an adhesive layer on said further layer for securing said decorative layer to a surface, said further layer comprising a metal layer or a color layer.
Claim 12
Dependent Claim
138 words
An embossing foil, which comprises: a backing foil comprising first, second and third thermoplastic polyester layers in a sandwiched construction, said first layer defining a first surface of said backing foil and said third layer defining a second surface of said backing foil, said second layer disposed between said first and third layers having a lower melting point than said first and third layers, said second surface of said backing foil having a three-dimensional patterning; a separating layer on said second surface of said backing foil; a decorative layer composition on said separating layer comprised of a layer of lacquer adjoining said separating layer, a further layer on said lacquer layer and an adhesive layer on said further layer for securing said decorative layer to a surface, said further layer comprising a metal layer or a color layer.
Claim 13
Dependent Claim
17 words
An embossing foil as set forth in claim 10 wherein said further layer is a metal layer.
Claim 14
Dependent Claim
17 words
An embossing foil as set forth in claim 10 wherein said further layer is a color layer.
Claim 15
Dependent Claim
81 words
An embossing foil, which comprises: a decorative layer comprising at least a layer of lacquer; a further layer disposed on said lacquer layer, said further layer comprising a metal layer or a color layer; and a thermoplastic polyester triple-layer backing foil formed of outer, central and inner polyester layers, said central polyester layer having a lower melting point than said outer and inner polyester layers, an inside surface of said backing foil having a three-dimensional patterning disposed towards said decorative layer.
Claim 16
Dependent Claim
81 words
An embossing foil, which comprises: a decorative layer comprising at least a layer of lacquer; a further layer disposed on said lacquer layer, said further layer comprising a metal layer or a color layer; and a thermoplastic polyester triple-layer backing foil formed of outer, central and inner polyester layers, said central polyester layer having a lower melting point than said outer and inner polyester layers, an inside surface of said backing foil having a three-dimensional patterning disposed towards said decorative layer.
Claim 17
Dependent Claim
17 words
An embossing foil as set forth in claim 13 wherein said further layer is a metal layer.
Claim 18
Dependent Claim
17 words
An embossing foil as set forth in claim 13 wherein said further layer is a color layer.
Claim 19
Dependent Claim
25 words
An embossing foil as set forth in claim 13 wherein said inner polyester layer of said backing foil is thinner than said outer polyester layer.
Claim 20
Dependent Claim
20 words
An embossing foil as set forth in claim 13 wherein said three-dimensional patterning is the negative representation of an engraving.
Claim 21
Dependent Claim
24 words
An embossing foil as set forth in claim 13 wherein said central polyester layer is between about 4 μm and 10 μm in thickness.
Claim 22
Dependent Claim
20 words
An embossing foil as set forth in claim 18 wherein said central polyester layer is about 7.5 μm in thickness.
Claim 23
Dependent Claim
23 words
An embossing foil as set forth in claim 13 wherein said backing foil is between about 24 μm and 30 μm in thickness.
Claim 24
Dependent Claim
19 words
An embossing foil as set forth in claim 20 wherein said backing foil is about 27.5 μm in thickness.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |