US4250209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer metallizing process and product produced thereby
Assignee: KONINKJIJKE EMBALLAGE INDUSTRIE VAN LEER BV
•
Filing: 1978-05-10
•
Granted: 1981-02-10
•
Expires: 1998-05-10
Abstract
Abstract A major surface of a polymeric film such as untreated polypropylene is coated with a release agent which has the capacity to effect a weak, releasable bond with the surface of the polymeric film and a stron, non-releasable bond with the surface of metal, e.g., aluminum, which has been freshly vapor deposited; precipitating a thin, coherent stratum of the desired metal upon the coated surface of the polymeric film by vapor deposition; whereupon are applied simultaneously (1) a layer of a standard laminating adhesive to the stratum of the metal, which is then bonded thereby to the non-metallic substrate by standard laminating techniques; a composite structure having the following configuration is produced as a result: polymeric film/release agent coating/vapor deposited metal stratum/laminating adhesive layer/non-metallic substrate and (2) a coating of the release agent to the free major surface of the polymeric film; from which composite structure the polymeric film is then stripped.
Inventors
- 👤 Johannes A. N. de Leeuw
- 👤 Johannes T. Brugmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:35
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/10; B44C1/14; B44C1/16; B44C1/165; B44C1/17; B44C1/1704; H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; H05K3/025; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/24917; Y10T428/24934; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31678; Y10T428/31703
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
178 words
In the process for the application of a thin, coherent metallic stratum to a major surface of a non-metallic substrate, the improvement therein which comprises: (a) coating a major surface of a polypropylene film, the surface of which has not been subjected to any pretreatment with a release agent having the capacity to effect a weak, releasable bond with the surface of the polypropylene film and a strong, non-releasable bond with the surface of a stratum of metal which has been freshly vapor deposited; (b) precipitating a thin, coherent stratum of metal upon the coated surface of the polypropylene film by vapor deposition; (c) applying simultaneously (1) a layer of a standard laminating adhesive to the exposed stratum of metal and bonding said stratum of metal to a non-metallic substrate by standard laminating techniques, whereby the following composite structure is prepared: polypropylene film/release agent coating/vapor deposited metal stratum/laminating adhesive layer/non-metallic substrate, and (2) a coating of the release agent to the free major surface of the polypropylene film; and (d) stripping the polypropylene film from said composite structure.
Claim 2
Dependent Claim
178 words
In the process for the application of a thin, coherent metallic stratum to a major surface of a non-metallic substrate, the improvement therein which comprises: (a) coating a major surface of a polypropylene film, the surface of which has not been subjected to any pretreatment with a release agent having the capacity to effect a weak, releasable bond with the surface of the polypropylene film and a strong, non-releasable bond with the surface of a stratum of metal which has been freshly vapor deposited; (b) precipitating a thin, coherent stratum of metal upon the coated surface of the polypropylene film by vapor deposition; (c) applying simultaneously (1) a layer of a standard laminating adhesive to the exposed stratum of metal and bonding said stratum of metal to a non-metallic substrate by standard laminating techniques, whereby the following composite structure is prepared: polypropylene film/release agent coating/vapor deposited metal stratum/laminating adhesive layer/non-metallic substrate, and (2) a coating of the release agent to the free major surface of the polypropylene film; and (d) stripping the polypropylene film from said composite structure.
Claim 3
Dependent Claim
15 words
The process of claim 1, wherein the release agent is a vinyl chloride-vinyl acetate copolymer.
Claim 4
Dependent Claim
14 words
The process of claim 1, wherein the release agent is a vinylidene chloride copolymer.
Claim 5
Dependent Claim
45 words
The process of claim 2 or 3, wherein the release agent comprises a film forming copolymer as the primary component of an admixture containing an additive selected from the group consisting of coloring agents, matting agents, printing agents, slipping agents, and ultraviolet light absorbing agents.
Claim 6
Dependent Claim
32 words
The process of claim 1, which comprises the additional procedural step of slitting the metallized substrate to the desired width simultaneously with the removal of the polypropylene film from the composite structure.
Claim 7
Dependent Claim
21 words
The process of claim 1, wherein the stratum of metal is deposited in the configuration of a band, stripe, or line.
Claim 8
Dependent Claim
10 words
The process of claim 1, wherein the metal is aluminum.
Claim 9
Dependent Claim
19 words
The process of claim 7, wherein the thickness of the aluminum metal stratum is between 0.01 and 0.1 microns.
Claim 10
Dependent Claim
18 words
The process of claim 1, wherein the non-metallic substrate is a film or sheet of a fibrous material.
Claim 11
Dependent Claim
19 words
The process of claim 9, wherein the non-metallic substrate is a film or sheet fabricated from a fibrous pulp.
Claim 12
Dependent Claim
11 words
The process of claim 10, wherein the non-metallic substrate is paper.
Claim 13
Dependent Claim
25 words
The process of claim 10, wherein the laminating adhesive is a standard wet laminating adhesive and the standard laminating techniques are standard wet laminating techniques.
References Cited (Backward Citations)
US1096822A
Cited
US3043728A
Cited
US3589962A
Cited
US3690909A
Cited
US3730752A
Cited
US3753850A
Cited
DE2555087A1
Cited
US4112190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |