Claims
- 1. A metallized article consisting essentially of a polymeric substrate, a non-tacky, milky, opaque poromeric polymer adhesive coating selected from the group consisting of polyurethane, polyethyleneterephthalate, and polyvinyl formal, said poromeric adhesive coating prepared by the method of depositing from a solution or dispersion thereof, coagulating in an atmosphere above 40 percent humidity and at a temperature of about 23.degree.-30.degree. C, washing with water and subsequently drying at temperatures above 50.degree. C, and a top metal coating securely bound thereto by means of said poromeric adhesive.
- 2. Article according to claim 1, in which the polymer of the substrate is a member of the group consisting of polyethylene terephthalate, polymethylmethacrylate, polyurethanes, polyamides, polyolefins, polycarbonates and polyquinoxaline.
- 3. Article according to claim 1, in which the metal coating is a metal of the group consisting of zinc, aluminum, copper, chromium, nickel, cobalt, silver and gold.
- 4. A method of producing the metallized polymeric article of claim 1, comprising applying to said polymeric substrate a solution or dispersion of said adhesive polymer, coagulating said adhesive polymer in an atmosphere having a relative humidity above 40 percent at normal atmospheric pressure and at a temperature of about 23.degree. to 30.degree. C to form a poromeric adhesive coating adapted to accept a metal layer within said pores, washing and subsequently drying at temperatures above 50.degree. C said coagulated coating and depositing a metal coating onto said poromeric adhesive coating.
- 5. Method according to claim 4, in which said adhesive polymer composition is a solution of a polymer of the group consisting of polyurethanes, polyethylene terephthalate and polyvinyl formal in a solvent selected from the group consisting of dimethylformamide and mixtures of dimethylformamide and acetone.
- 6. Method according to claim 4, in which said adhesive polymer composition is a dispersion of a polymer of the group consisting of polyurethanes, polyethylene terephthalate and polyvinyl formal in a mixture of halogenated hydrocarbon and dimethyl formamide.
- 7. Method according to claim 4, in which the coagulated poromeric adhesive coating is washed with water at a temperature of below 50.degree. C thereby to completely eliminate the solvent and fix the poromeric adhesive coating.
- 8. Method according to claim 4, in which said atmosphere has a relative humidity above 65%.
Priority Claims (1)
Number |
Date |
Country |
Kind |
174378 |
Oct 1973 |
DL |
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Parent Case Info
This is a continuation-in-part of application Ser. No. 514,702, filed Oct. 15, 1974, now abandoned.
US Referenced Citations (9)
Non-Patent Literature Citations (1)
Entry |
H. Rushland, et. al., "Poly(ethylene terephthalate)-based hot-melt adhesives", Chem. Abstracts, vol. 80, 84060g, 1974. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
514702 |
Oct 1974 |
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