US5393590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot stamping foil
Assignee: 3M Co
•
Filing: 1993-07-07
•
Granted: 1995-02-28
•
Expires: 2013-07-07
Abstract
Abstract A hot stamping foil comprising in order a carrier, optional release control layer, color layer, and adherence layer, wherein the adherence layer comprises a mixture of ethylene copolymer dispersion and acrylic dispersion. Also a method using such foils to form graphic patterns on articles such as retroreflective license plates, stickers, or emblems and articles bearing graphic patterns formed using such foils.
Inventors
- 👤 Ruediger Caspari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:56
CPC Classifications
B; B44; B44C; B44C3/00; B44C3/02; B60; B60R; B60R13/00; B60R13/10; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B44C1/1729; G; G09; G09F; G09F13/00; G09F13/16; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24901; Y10T428/31504; Y10T428/31551; Y10T428/31591; Y10T428/31678; Y10T428/31786; Y10T428/31855
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
65 words
A hot stamping foil comprising, in order, a carrier, a color layer, and an adherence layer, said adherence layer being between about 1 and about 5 microns thick and comprising a mixture of ethylene copolymer dispersion and acrylic dispersion in a weight ratio between about 10:90 and about 60:40, said ethylene copolymer dispersion comprising at least one of ethylene/acrylic acid copolymer or ethylene/methacrylic acid copolymer.
Claim 2
Dependent Claim
65 words
A hot stamping foil comprising, in order, a carrier, a color layer, and an adherence layer, said adherence layer being between about 1 and about 5 microns thick and comprising a mixture of ethylene copolymer dispersion and acrylic dispersion in a weight ratio between about 10:90 and about 60:40, said ethylene copolymer dispersion comprising at least one of ethylene/acrylic acid copolymer or ethylene/methacrylic acid copolymer.
Claim 3
Dependent Claim
20 words
The foil of claim 1 wherein said ethylene copolymer dispersion has a Brookfield viscosity of less than 5000 milli Pascals×seconds.
Claim 4
Dependent Claim
20 words
The foil of claim 1 wherein said ethylene copolymer dispersion has a Brookfield viscosity of less than 500 milli Pascals×seconds.
Claim 5
Dependent Claim
27 words
The foil of claim 1 wherein said acrylic dispersion comprises the radical polymerization reaction product of at least one of methacrylic acid, acrylic acid, or butyl acrylate.
Claim 6
Dependent Claim
20 words
The foil of claim 1 wherein said acrylic dispersion has a Brookfield viscosity of less than about 200 milli Pascals×seconds.
Claim 7
Dependent Claim
29 words
The foil of claim 1 wherein said ethylene copolymer dispersion and acrylic dispersion are present in said adherence layer in a weight ratio between about 3:2 and about 2:3.
Claim 8
Dependent Claim
29 words
The foil of claim 1 wherein said ethylene copolymer dispersion and acrylic dispersion are present in said adherence layer in a weight ratio between about 5:45 and about 45:55.
Claim 9
Dependent Claim
18 words
The foil of claim 1 wherein said adherence layer is between about 1 and about 3 microns thick.
Claim 10
Dependent Claim
18 words
The foil of claim 1 further comprising a release control layer between said carrier and said color layer.
Claim 11
Dependent Claim
14 words
The foil of claim 9 wherein said release control layer comprises wax or lacquer.
Claim 12
Dependent Claim
17 words
The foil of claim 1 wherein said color layer comprises segments of two or more different colors.
Claim 13
Dependent Claim
29 words
The foil of claim 1 wherein said color layer comprises one or more inks selected from among the following: cellulose inks, polyvinyl chloride inks, polyurethane inks, and acrylic inks.
Claim 14
Dependent Claim
18 words
The foil of claim 1 wherein said color layer is between about 2 and about 15 microns thick.
Claim 15
Dependent Claim
18 words
The foil of claim 1 wherein said color layer is between about 4 and about 6 microns thick.
Claim 16
Dependent Claim
21 words
The foil of claim 1 wherein said carrier is selected from among the following: polyester film, aluminum foil, and coated papers.
Claim 17
Dependent Claim
15 words
The foil of claim 1 wherein said carrier is between about 10 and 40 microns.
Claim 18
Dependent Claim
12 words
The foil of claim 1 wherein said ethylene copolymer dispersion is water-based.
Claim 19
Dependent Claim
11 words
The foil of claim 1 wherein said acrylic dispersion is water-based.
Claim 20
Dependent Claim
16 words
The foil of claim 1 wherein said adherence layer further comprises a water-based dispersion of polyurethane.
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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) | 1998-02-27 | 1998-08-29 | 1999-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-27 | 2002-08-29 | 2003-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-27 | 2006-08-29 | 2007-02-28 | $7700.00 | Window Closed / Lapsed |