US4382831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallization of support members
Assignee: Dennison Manufacturing Co
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Filing: 1981-10-21
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Granted: 1983-05-10
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Expires: 2001-10-21
Abstract
Abstract Method and apparatus for the metallization of support members, such as paper sheeting and other cellulosic products. A metallic film is transferred to the paper support from a plastic sheet carrier and adhered to the paper by a thermoplastic material. The carrier, typically of stabilized plastic with an adhered film of metal and an overlay of thermoplastic adhesive with the paper support. Pressure and/or heat is applied to the composite which is subsequently cooled and the carrier stripped away to leave the desired metallic layer on the receiving surface of the paper support. This transfer procedure overcomes the objections associated with metal foil laminates and is particularly suitable for metallizing support members, like paper, which are difficult to metallize directly because they release significant amounts of vapor during conventional vacuum metallization. The results are also superior to those realized using an adhesive with dispersed metal particles, and the need for curing of the adhesive is eliminated.
Inventors
- 👤 Philip J. Clough
- 👤 Roswell E. Hubbard
- 👤 John F. McDermott
- 👤 Richard G. Miekka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:06
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/02; D21H19/04; B; B44; B44C; B44C1/00; B44C1/10; B44C1/14; H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; H05K3/025; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T156/00; Y10T156/19; Y10T156/1911; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917; Y10T428/28; Y10T428/2804
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
86 words
The method of metallizing a support member which comprises the steps of: (1) providing a support member; (2) providing a metallized plastic sheet with a thermoplastic layer comprising a water-based adhesive thereon; (3) forming a composite of the support member and the metallized sheet, with said thermoplastic layer therebetween; (4) rendering said thermoplastic layer flowable; and (5) rendering said thermoplastic layer nonflowable in said composite and stripping said plastic sheet therefrom to leave said support member with said metallic layer adhered thereto by said thermoplastic layer.
Claim 2
Independent Claim
86 words
The method of metallizing a support member which comprises the steps of: (1) providing a support member; (2) providing a metallized plastic sheet with a thermoplastic layer comprising a water-based adhesive thereon; (3) forming a composite of the support member and the metallized sheet, with said thermoplastic layer therebetween; (4) rendering said thermoplastic layer flowable; and (5) rendering said thermoplastic layer nonflowable in said composite and stripping said plastic sheet therefrom to leave said support member with said metallic layer adhered thereto by said thermoplastic layer.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein said plastic sheet is remetallized and reused for the metallization of other support members.
Claim 4
Dependent Claim
20 words
The method of claim 2 wherein the number of reuses of said plastic sheet is proportioned to the thickness thereof.
Claim 5
Dependent Claim
20 words
The method of claim 3 wherein a reuse of said plastic sheet is permitted for each 0.1 mil thickness thereof.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein said support member is a sheet of cellulosic material.
Claim 7
Dependent Claim
16 words
The method of claim 5 wherein said cellulosic material is prepared from mechanical or chemical pulp.
Claim 8
Dependent Claim
25 words
The method of claim 6 wherein said paper sheet is size-press coated on at least one side with a water dispersion of clay and resin.
Claim 9
Dependent Claim
15 words
The method of claim 7 wherein said resin is an aqueous dispersion of styrene butadiene.
Claim 10
Dependent Claim
40 words
The method of claim 1 wherein said thermoplastic layer is selected from the class consisting of styrenes, styrene polyolefin mixtures, polyamides, nitrostyrenes, vinyl acetates and copolymers including ethylene vinyl acetate, vinyl chlorides, acrylics, plasticized nitrocelluloses and mixtures of the foregoing.
Claim 11
Dependent Claim
17 words
The method of claim 9 wherein said thermoplastic layer is a mixture of styrene and vinyl resins.
Claim 12
Dependent Claim
23 words
The method of claim 10 wherein the styrene resin is 80 parts styrene butadiene and the vinyl resin is 20 parts vinyl acetate.
Claim 13
Dependent Claim
13 words
The method of claim 10 wherein said vinyl resin is ethylene vinyl acetate.
Claim 14
Dependent Claim
44 words
The method of claim 9 wherein said thermoplastic layer further includes a viscosity modifier selected from the class consisting of amine esters, sulphated oils, colliodal silicas, polyoxyalkylene fatty acid esters, starches, carboxylated cross-linked acrylic emulsions; methyl vinyl ether maleic anhydrides, and carboxylated methyl celluloses.
Claim 15
Dependent Claim
16 words
The method of claim 13 wherein said viscosity modifier comprises one part carboxylated cross-linked acrylic emulsion.
Claim 16
Dependent Claim
18 words
The method of claim 1 wherein said plastic sheeting is selected from the class of olefins and polyesters.
Claim 17
Dependent Claim
11 words
The method of claim 15 wherein said polyester is release coated.
Claim 18
Dependent Claim
18 words
The method of claim 15 wherein said olefin is polypropylene with at least one axial degree of orientation.
Claim 19
Dependent Claim
14 words
The method of claim 15 wherein said plastic sheet has a preliminary corona treatment.
Claim 20
Dependent Claim
26 words
The method of claim 1 wherein said composite is heated in the range from about 230° F. to about 275° F., and preferably about 255° F.
Claim 21
Dependent Claim
32 words
The method of claim 1 wherein said composite is subjected to force in the range from about 400 to about 1000 pounds per linear inch, preferably about 600 pounds per linear inch.
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) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |