US2303871A - Metal coated plastic material and method of producing the same - Google Patents
Metal coated plastic material and method of producing the same Download PDFInfo
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- US2303871A US2303871A US271499A US27149939A US2303871A US 2303871 A US2303871 A US 2303871A US 271499 A US271499 A US 271499A US 27149939 A US27149939 A US 27149939A US 2303871 A US2303871 A US 2303871A
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- solution
- plastic material
- silver
- same
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- 239000000463 material Substances 0.000 title description 21
- 238000000034 method Methods 0.000 title description 19
- 239000004033 plastic Substances 0.000 title description 16
- 229920003023 plastic Polymers 0.000 title description 16
- 229910052751 metal Inorganic materials 0.000 title description 13
- 239000002184 metal Substances 0.000 title description 13
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 238000000576 coating method Methods 0.000 description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 11
- 229910052709 silver Inorganic materials 0.000 description 11
- 239000004332 silver Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 10
- 229910001961 silver nitrate Inorganic materials 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 6
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 6
- 238000009713 electroplating Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000001119 stannous chloride Substances 0.000 description 6
- 235000011150 stannous chloride Nutrition 0.000 description 6
- 230000001464 adherent effect Effects 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000001476 sodium potassium tartrate Substances 0.000 description 2
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- 241001514881 Metaplastes Species 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/28—Sensitising or activating
- C23C18/285—Sensitising or activating with tin based compound or composition
Definitions
- This invention relates to a process for metallizing plastic materials, such as hard rubber, phenol condensation products, urea resins, synthetic resins, cellulosic plastic materials or materials coated therewith and has for an object to provide a convenient, dependable and comparatively inexpensive process for the above purpose.
- Another object of the invention is to provide a novel and improved process for treating the surface of a plastic material of the above type so that an adherent metal coating may be applied thereto.
- Another object is to provide a novel and improved process for applying to the surface of a plastic material a conductive layer having characteristicssuitable for subsequent electroplating.
- a further object is to provide a process of the above type which is adapted to apply the metallized or coated layer in the form of a design.
- a further object is to provide a process for stenciling a metallized coating on a plastic material.
- a still further object is to provide a plastic material having a, coating of the above type.
- Another object is to provide a process of the above type which is particularly suitable for metallizing the surface of cellulose acetate products.
- Another object is to provide treating compositions'suitable for use in the above process.
- the present process comprises in general so treating the surface of a plastic material that an adherent metallized layer may be applied thereto.
- This layer may be used for the subsequent electroplating or, in certain instances, may be polished or otherwise treated to provide the finished surface.
- plastic materials of the type above referred to, and particularly the synthetic plastics require certain pretreatment before the metallizing operation canbe efficiently carried out.
- This pretreatment may produce a physical or chemical change in'the surface itself or may result in the provision of a film of highly reactive material on the surface, although'I am not limiting myself to either of these explanations.
- the step has been found to be essential in order to obtain the subsequent deposition of an adherent metallized layer.
- the material' may first be depolished and cleaned. It is then given the pretreatment hereinafter referred to to condition the same for the metallizing operation. Thereafter, the surface is washed and a suitable silver solution is supplied to deposit silver on the surface as a metallized coating. This coating is sufiiciently adherent to be polished and used as such or may be used as a vehicle for the subsequent electroplating of the metallized portion.
- the material such as a phenol condensation product or other synthetic resin
- the material may first be depolished, either by chemical means, such as by the use of a reagent having the property of depolishing the surface, or by mechanical means, such as bysand blasting.
- the depolishing may be replaced by the use of a solution of sodium hydroxide, preferably a normal solution.
- This solution which I term a priming solution, has the property of cleaning or conditioning the surface to receive the subsequent treatment.
- the material is cleaned of all foreign substances by the use of a suitable solvent or washing liquid, such as gasoline or water.
- a suitable solvent or washing liquid such as gasoline or water.
- the material is then subjected to the-pretreating solution.
- This solution may comprise a water solution of stannous chloride, which may be of a concentration such that a milk-like consistency is obtained.
- hydrochloric acid is used in a quantity such that the solution becomes clear and remains clear under the conditions of use.
- the solution may have the following composition:
- the pretreating solution is removed and the surface is thoroughly washed so as to remove the pretreating solution as completely as possible.
- the surface is then ready for the metallizing operation.
- This operation consists in subjecting the surface to a silver bath to precipitate the silver thereon.
- the silver bath may comprise a water solution of sodium potassium tartrate and silver nitrate or a water solution of formaldehyde, which is combined with a solution of silver nitrate and ammonia under conditions such that the silver is precipitated from the silver nitrate solution onto the'surface of the article.
- the formaldehyde solution may, for example, comprise 22 cc. of 40% formaldehyde in 16,000 cc. of water.
- a small quantity of silver nitrate may or may not be incorporated therewith.
- the silver nitrate and ammonia solution may be of about the following composition:
- solutions are preferably prepared separately and are mixed only when the met-allizing operation is to be carried out.
- the formaldehyde or sodium potassium tartrate serves to reduce the silver and cause the same to be deposited on the surface.
- the solution should be agitated throughout the metallizing operation.
- the thickness of the layer of silver thus precipitated will depend, in general, upon the length of time that the silver nitrate solution is in contact with the surface and the concentration of silver in the solution.
- the solution is constantly agitated or caused to flow over the surface so that a fresh part of the solution is always in contact therewith. If, after one treatment of this type, the object is not uniformly coated, the operation may be repeated until a coating of the desired consistency and thickness is built up on the treated surface.
- the metallized surface may now be polished and it may be suitable for certain ornamental purposes. If desired, however, the metallized surface may be used as a conductor for the electroplating of any desired metal thereon. i
- the object is placed in the usual electrolyte having a composition depending upon the metal to be deposited and the metallized coating may be used as a cathode onto which the metal is applied in the usual manner.
- the metal coating thus applied will adhere sufficiently to permit bufling and polishing and to produce a finish resembling a metal article.
- the preliminary depolishing may be omitted. It may also be omitted if only a thin plating is to be added which does not have sufiicient tensile strength to be peeled from the surface, or if an extremely heavy plating is to be applied which would have sumcient strength in itself to resist the tendency to peel. For coatings having an intermediate thickness, however, which are suificiently strong to be peeled from the surface, but are not sufficiently rigid to resist such action, the depolishing has been. found to be advantageous.
- This process is particularly adapted to ornamentation of plastic'rhaterials of the type above referred to inasmuch as it may be applied by means of a stencil.
- a stencil the steps of pretreating and cleaning the surface, treating with 'stannous chloride and depositing the silver thereon from the silver nitrate solution may all be carried out in the presence of the stencil and will deposit the metal in the form of a stenciled design. Thereafter, if a subsequent electroplating is required, the metallized coating will serve to form the base for the electroplating and cause the latter to also assume the predetermined design.
- Objects treated in this manner present the appearance of metal, but have a weight corresponding to that of the plastic and also have the advantage that they may be formed or molded in any desired shape much more readily and inexpensively than a metalarticle could be so formed and that, when coated, they serve as a substitute for the metal article.
- the process is particularly adaptable for novelties, such as costume jewelry, ash trays, ornamental figures or the like.
- the method of metallizing the surface of an organic plastic material which comprises treating the surface with a solution of Stannous chloride and hydrochloric acid to cause the same to have characteristics suitable for metallizing, washing the surface to remove said solution and applying to said surface a solution of silver nitrate, ammonia and a reducing agent under conditions to precipitate the silver thereon to form a metallized layer, and electrodepositing metal on said layer.
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Description
Patented Dec. 1, 1942 METAL COATED PLASTIC MATERIAL AND METHOD OF PRODUCING THE SAME Bernard F. Walker, Cedarhurst, N. Y., assignor to Metaplast Corporation, New York, N. Y., a corporation of New York No Drawing. Application May 3 1939, Serial No. 271,499
4 Claims.
This invention relates to a process for metallizing plastic materials, such as hard rubber, phenol condensation products, urea resins, synthetic resins, cellulosic plastic materials or materials coated therewith and has for an object to provide a convenient, dependable and comparatively inexpensive process for the above purpose.
This application is a'continuation-in-part of my application Ser. No. 209,525, filed May 23, 1938,- Patent 2,214,646 for Metal coated plastic material and method of producing the same.
Another object of the invention is to provide a novel and improved process for treating the surface of a plastic material of the above type so that an adherent metal coating may be applied thereto.
Another object is to provide a novel and improved process for applying to the surface of a plastic material a conductive layer having characteristicssuitable for subsequent electroplating.
A further object is to provide a process of the above type which is adapted to apply the metallized or coated layer in the form of a design.
A further object is to provide a process for stenciling a metallized coating on a plastic material.
A still further object is to provide a plastic material having a, coating of the above type.
Another object is to provide a process of the above type which is particularly suitable for metallizing the surface of cellulose acetate products.
Another object is to provide treating compositions'suitable for use in the above process.
Various other objects and advantages will be apparent as the nature of the invention is more fully disclosed.
Although the novel features which are characteristic of this invention are pointed out more particularly in the claims appended hereto, the invention itself may be better understood by referring to the following description in which certain specific embodiments thereof are set forth for purposes of illustration.
Certain specific terms are used herein to refer to various details of the invention. It is to be understood, however, that these terms are to be given as broad an interpretation as the state of the art will permit.
The present process comprises in general so treating the surface of a plastic material that an adherent metallized layer may be applied thereto. This layer may be used for the subsequent electroplating or, in certain instances, may be polished or otherwise treated to provide the finished surface.
It has been found that plastic materials of the type above referred to, and particularly the synthetic plastics, require certain pretreatment before the metallizing operation canbe efficiently carried out. This pretreatment may produce a physical or chemical change in'the surface itself or may result in the provision of a film of highly reactive material on the surface, although'I am not limiting myself to either of these explanations. Whatever the action of the pretreating material, the step has been found to be essential in order to obtain the subsequent deposition of an adherent metallized layer.
More specifically, the material'may first be depolished and cleaned. It is then given the pretreatment hereinafter referred to to condition the same for the metallizing operation. Thereafter, the surface is washed and a suitable silver solution is supplied to deposit silver on the surface as a metallized coating. This coating is sufiiciently adherent to be polished and used as such or may be used as a vehicle for the subsequent electroplating of the metallized portion.
As a specific example of one method of carrylng out this process, the material, such as a phenol condensation product or other synthetic resin, may first be depolished, either by chemical means, such as by the use of a reagent having the property of depolishing the surface, or by mechanical means, such as bysand blasting. For cellulose acetate products, the depolishing may be replaced by the use of a solution of sodium hydroxide, preferably a normal solution. This solution, which I term a priming solution, has the property of cleaning or conditioning the surface to receive the subsequent treatment.
After the priming or sand blasting, above described, the material is cleaned of all foreign substances by the use of a suitable solvent or washing liquid, such as gasoline or water. The material is then subjected to the-pretreating solution. This solution may comprise a water solution of stannous chloride, which may be of a concentration such that a milk-like consistency is obtained. I have found, however, that the addition of hydrochloric acid to the solution greatly decreases the time required for the pretreatment. The hydrochloric acid is used in a quantity such that the solution becomes clear and remains clear under the conditions of use. The solution may have the following composition:
Stannous chloride grams 360 Hydrochloric acid 'cc 216 Water cc 4000 to be understood, of course, that the exact time and concentrations may be varied and that a longer time will be required with a less concentrated solution. Furthermore, it has been found, in general, that a substantially longer time is required when the quantity of hydrochloric acid is reduced.
After the surface has been properly pretreated, as above described, the pretreating solution is removed and the surface is thoroughly washed so as to remove the pretreating solution as completely as possible. The surface is then ready for the metallizing operation. This operation consists in subjecting the surface to a silver bath to precipitate the silver thereon. The silver bath may comprise a water solution of sodium potassium tartrate and silver nitrate or a water solution of formaldehyde, which is combined with a solution of silver nitrate and ammonia under conditions such that the silver is precipitated from the silver nitrate solution onto the'surface of the article. The formaldehyde solution may, for example, comprise 22 cc. of 40% formaldehyde in 16,000 cc. of water. A small quantity of silver nitrate may or may not be incorporated therewith. The silver nitrate and ammonia solution may be of about the following composition:
Silver nitrate 33.3 grams Ammonia (28%) About 28 cc. (or enough to clear up the solution) Water 16,000 cc.
These solutions are preferably prepared separately and are mixed only when the met-allizing operation is to be carried out. The formaldehyde or sodium potassium tartrate serves to reduce the silver and cause the same to be deposited on the surface. The solution should be agitated throughout the metallizing operation.
The thickness of the layer of silver thus precipitated will depend, in general, upon the length of time that the silver nitrate solution is in contact with the surface and the concentration of silver in the solution. Preferably, the solution is constantly agitated or caused to flow over the surface so that a fresh part of the solution is always in contact therewith. If, after one treatment of this type, the object is not uniformly coated, the operation may be repeated until a coating of the desired consistency and thickness is built up on the treated surface. The metallized surface may now be polished and it may be suitable for certain ornamental purposes. If desired, however, the metallized surface may be used as a conductor for the electroplating of any desired metal thereon. i
For this purpose, the object is placed in the usual electrolyte having a composition depending upon the metal to be deposited and the metallized coating may be used as a cathode onto which the metal is applied in the usual manner. The metal coating thus applied will adhere sufficiently to permit bufling and polishing and to produce a finish resembling a metal article.
In the above process, it is to lee-understood that certain of the steps may be omitted in various instances, depending upon the condition of the material and the type of coating required. For example, if the metallized coating is to compris the finished surface, particularly in the case of cast resins and thermoplastic materials, the preliminary depolishing may be omitted. It may also be omitted if only a thin plating is to be added which does not have sufiicient tensile strength to be peeled from the surface, or if an extremely heavy plating is to be applied which would have sumcient strength in itself to resist the tendency to peel. For coatings having an intermediate thickness, however, which are suificiently strong to be peeled from the surface, but are not sufficiently rigid to resist such action, the depolishing has been. found to be advantageous.
This process is particularly adapted to ornamentation of plastic'rhaterials of the type above referred to inasmuch as it may be applied by means of a stencil. If, for example, the surface is covered by a suitable stencil the steps of pretreating and cleaning the surface, treating with 'stannous chloride and depositing the silver thereon from the silver nitrate solution may all be carried out in the presence of the stencil and will deposit the metal in the form of a stenciled design. Thereafter, if a subsequent electroplating is required, the metallized coating will serve to form the base for the electroplating and cause the latter to also assume the predetermined design.
Objects treated in this manner present the appearance of metal, but have a weight corresponding to that of the plastic and also have the advantage that they may be formed or molded in any desired shape much more readily and inexpensively than a metalarticle could be so formed and that, when coated, they serve as a substitute for the metal article.
The process is particularly adaptable for novelties, such as costume jewelry, ash trays, ornamental figures or the like.
Although a specific embodiment has been shown for purposes of illustration, it is to be understood that the invention is capable of various uses as will be readily apparent to a person skilled in the art. The invention is only to be limited in accordance with the following claims when interpreted in view of the prior art.
What is claimed is:
1. The method of metallizing the surface of an organic plastic material which comprises treating the surface with a solution of Stannous chloride and hydrochloric acid to cause the same to have characteristics suitable for metallizing, washing the surface to remove said solution and applying to said surface a solution of silver nitrate, ammonia and a reducing agent under conditions to precipitate the silver thereon to form a metallized layer, and electrodepositing metal on said layer.
2. The method of metallizing the surface of an organic plastic material which comprises treating the surface with a solution having about the following composition:
Stannous chloride. grams 360 Hydrochloric acid cc 216 Water cc 4000 washing the surface to remove said solution and treating the same with a mixture of the following solutions in about the proportions specified:
Silver nitrate grams 33.3 Ammonia ....cc 28 Water c.-- 16,000
Formaldehyde cc 22 Water cc 16,000
said solution comprising the following ingredients in about the proportions specified:
Stannous chloride grams 360 Hydrochloric acid cc 216 5 Water cc 4000 BERNARD F.- WALKER.-
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US271499A US2303871A (en) | 1939-05-03 | 1939-05-03 | Metal coated plastic material and method of producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US271499A US2303871A (en) | 1939-05-03 | 1939-05-03 | Metal coated plastic material and method of producing the same |
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US2303871A true US2303871A (en) | 1942-12-01 |
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ID=23035854
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US271499A Expired - Lifetime US2303871A (en) | 1939-05-03 | 1939-05-03 | Metal coated plastic material and method of producing the same |
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2421079A (en) * | 1946-01-31 | 1947-05-27 | Narcus Harold | Method for silvering nonconductive materials |
US2429420A (en) * | 1942-10-05 | 1947-10-21 | Libbey Owens Ford Glass Co | Conductive coating for glass and method of application |
US2439654A (en) * | 1943-09-18 | 1948-04-13 | Libbey Owens Ford Glass Co | Method of silvering surfaces |
US2474502A (en) * | 1944-02-29 | 1949-06-28 | Charles T Suchy | Metallization of electrically nonconductive fabrics, fibrous materials, and porous materials |
US2533454A (en) * | 1944-10-04 | 1950-12-12 | Eastman Kodak Co | Method of plating nonmetallic surfaces |
US2580718A (en) * | 1945-08-01 | 1952-01-01 | Printing And Allied Trades Res | Method of producing electroforms |
US2596515A (en) * | 1946-03-14 | 1952-05-13 | Libbey Owens Ford Glass Co | Coating vitreous substances |
US2631334A (en) * | 1947-12-27 | 1953-03-17 | Rauland Corp | Process of making thin free films |
US2639997A (en) * | 1947-04-24 | 1953-05-26 | Int Standard Electric Corp | Metallization of nonmetallic surfaces |
US2702253A (en) * | 1950-11-01 | 1955-02-15 | Gasaccumulator Svenska Ab | Surface metallizing method |
US2757104A (en) * | 1953-04-15 | 1956-07-31 | Metalholm Engineering Corp | Process of forming precision resistor |
US2871139A (en) * | 1955-12-08 | 1959-01-27 | Wein Samuel | Silvering process and materials |
US2879175A (en) * | 1953-10-23 | 1959-03-24 | Ericsson Telefon Ab L M | Method for producing a silver coating on a non metallic material |
US3099608A (en) * | 1959-12-30 | 1963-07-30 | Ibm | Method of electroplating on a dielectric base |
US4639382A (en) * | 1982-07-14 | 1987-01-27 | U.S. Philips Corporation | Method of providing a metal mirror on a surface manufactured from an acrylate synthetic resin or a methacrylate synthetic resin |
US20050274445A1 (en) * | 2004-06-01 | 2005-12-15 | Paul Chang | Method for manufacturing decoration of imitation metal |
-
1939
- 1939-05-03 US US271499A patent/US2303871A/en not_active Expired - Lifetime
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2429420A (en) * | 1942-10-05 | 1947-10-21 | Libbey Owens Ford Glass Co | Conductive coating for glass and method of application |
US2439654A (en) * | 1943-09-18 | 1948-04-13 | Libbey Owens Ford Glass Co | Method of silvering surfaces |
US2474502A (en) * | 1944-02-29 | 1949-06-28 | Charles T Suchy | Metallization of electrically nonconductive fabrics, fibrous materials, and porous materials |
US2533454A (en) * | 1944-10-04 | 1950-12-12 | Eastman Kodak Co | Method of plating nonmetallic surfaces |
US2580718A (en) * | 1945-08-01 | 1952-01-01 | Printing And Allied Trades Res | Method of producing electroforms |
US2421079A (en) * | 1946-01-31 | 1947-05-27 | Narcus Harold | Method for silvering nonconductive materials |
US2596515A (en) * | 1946-03-14 | 1952-05-13 | Libbey Owens Ford Glass Co | Coating vitreous substances |
US2639997A (en) * | 1947-04-24 | 1953-05-26 | Int Standard Electric Corp | Metallization of nonmetallic surfaces |
US2631334A (en) * | 1947-12-27 | 1953-03-17 | Rauland Corp | Process of making thin free films |
US2702253A (en) * | 1950-11-01 | 1955-02-15 | Gasaccumulator Svenska Ab | Surface metallizing method |
US2757104A (en) * | 1953-04-15 | 1956-07-31 | Metalholm Engineering Corp | Process of forming precision resistor |
US2879175A (en) * | 1953-10-23 | 1959-03-24 | Ericsson Telefon Ab L M | Method for producing a silver coating on a non metallic material |
US2871139A (en) * | 1955-12-08 | 1959-01-27 | Wein Samuel | Silvering process and materials |
US3099608A (en) * | 1959-12-30 | 1963-07-30 | Ibm | Method of electroplating on a dielectric base |
US4639382A (en) * | 1982-07-14 | 1987-01-27 | U.S. Philips Corporation | Method of providing a metal mirror on a surface manufactured from an acrylate synthetic resin or a methacrylate synthetic resin |
US20050274445A1 (en) * | 2004-06-01 | 2005-12-15 | Paul Chang | Method for manufacturing decoration of imitation metal |
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