WO1993010975A1 - Miroir en plastique et procede de fabrication - Google Patents

Miroir en plastique et procede de fabrication Download PDF

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Publication number
WO1993010975A1
WO1993010975A1 PCT/US1992/010425 US9210425W WO9310975A1 WO 1993010975 A1 WO1993010975 A1 WO 1993010975A1 US 9210425 W US9210425 W US 9210425W WO 9310975 A1 WO9310975 A1 WO 9310975A1
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WIPO (PCT)
Prior art keywords
plastic
solution
mirror according
substance
silver
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Ceased
Application number
PCT/US1992/010425
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English (en)
Inventor
Tamio Saito
Tetsuto Nakashima
Masayoshi Mogi
Masaki Okada
Hironaka Tsunematu
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Individual
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Individual
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Publication of WO1993010975A1 publication Critical patent/WO1993010975A1/fr
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    • 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
    • C23C18/31—Coating with metals
    • C23C18/42—Coating with noble metals
    • C23C18/44—Coating with noble metals using reducing agents

Definitions

  • This invention relates to a plastic mirror and a manufacturing method therefor, and is particularly concerned with a mirror made of plastic such as acrylic resin (polymethylmethaacrylate, methaacrylic resin, or PMMA), on which silver is electrolessly plated, and to a manufacturing method thereof.
  • the plastic may be acrylic resin whose surface has been activated by chemical method, such as coating of surface-active agent and/or adsorption of metal of palladium, and/or has been hardened by coating of hardener such as silica sol, silane coupling agent or fluorosilicic acid.
  • This invention provides mirrors which is more lightweight than existing glass mirror and is not easily damaged physically, and therefore is very safe to be earthquake proof and also less expensive comparing to existing glass mirror.
  • This invention also provides mirrors that have higher reflectivity compared with plastic mirror of aluminum vapor deposition. Through these advantages, this invention contributes to the human life in the area of construction, cosmetics, electronics and automobile industry.
  • glass mirror is commonly known to have the highest light reflectivity.
  • Glass mirror is manufactured by electroless silver plating where silver thin film is formed or deposited on one side of transparent glass substrate through electroless silver-mirror reaction that reduces silver plating solution containing ammoniacal silver nitrate with glucose.
  • the glass mirror made through such a process has always a risk to be broken and to hurt the human body, therefore intensive caution is required to take care of it.
  • a glass mirror can hardly be thin, for example less than 80 mil thickness because of difficulty of manufacturing and handling, therefore it requires to have certain thickness such as 120 mil.
  • weight of mirror is significantly increased so that transportation and handling thereof become cumbersome; the best attention must be given to transportation and handling of glass mirror.
  • the plastic mirror manufactured by aluminum vapor deposition is inferior to glass mirror manufactured by electroless silver plating in light reflectivity, and therefore the plastic mirror looks dark. Further, the plastic mirror manufactured by aluminum vapor deposition tends to have many pin holes, so people feels that it is mirror of poor quality. Therefore the plastic mirror manufactured by aluminum vapor deposition is used as reflector rather than as mirror in a room. As vapor deposition requires vacuum system, plastic mirror made by aluminum vapor deposition is more expensive in respect with manufacturing cost than glass mirror made by electroless silver plating.
  • An object of the present invention is to solve the above-mentioned problems and provide a plastic mirror which can be easily manufactured at low cost and is light, safe and highly reflective, and a method for manufacturing it.
  • an improved plastic mirror comprising plastic substance, surface-active agent coated onto the surface of said plastic substance and a silver thin layer which is deposited on said surface- active agent coated surface by electroless silver plating.
  • a method for manufacturing a plastic mirror which comprising a step of depositing silver layer onto the surface of plastic substance after surface-active agent is applied onto the said plastic substance.
  • the surface of plastic substance may be activated prior to coating the surface-active agent.
  • the color of the plastic substance can be transparence, colored transparence, opalescence, glassy sky-blue transparence.
  • a plastic substance having treated surface may be used.
  • the surface treatment of plastic substance is performed by etching, blowing plasma jet, silica coating and/or low reflection coating.
  • hardener is coated on the plastic substance to provide the treated surface.
  • the plastic substance can be formed to a plate, substrate or film or any topological derivative such as parabolic, curved, bent, dimpled, bumped, waved, saw-edged, notched or swelling shape.
  • the inventors had tried to make a plastic mirror having high reflectivity by electroless silver plating, however it had been unsuccessful. Because the surface of the plastic mirror can not be uniformly wetted over with plating solution, it was extremely difficult to uniformly plate the surface of plastic substance. Thus, the inventors had failed to manufacture a plastic mirror that is highly reflective.
  • a silver thin layer is deposited by electroless sliver plating method after surface-active agent is coated.
  • Plastic mirror manufactured by this method has high reflectivity and high quality which is the same level of glass mirror.
  • the inventors think the cause making it possible to realize the high quality mirror as follows.
  • Coating aqueous solution containing surface-active agent changes hydrophobic surface of plastic to hydrophilic surface.
  • Surface-active agent contains hydrophilic group and hydrophobic group in a single molecule. Therefore, surface-active agent sticks to the plastic surface which is hydrophobic at the hydrophobic group of said surface-active agent. This results that the hydrophilic group of surface-active agent is positioned out side of surface of said plastic substance. Under this condition, because the hydrophilic group of surface-active agent spreads the aqueous solution on the surface of plastic substance, the aqueous solution will spread all over the surface of plastic without repelling.
  • the concentration of the surface- active agent in the aqueous solution which is to be coated on the surface of plastic substance shall be as low as possible. Therefore if the aqueous solution contains certain amount of surface-active agent which makes it possible that silver plating solution will be spread uniformly and at the same time not disturbing silver mirror reaction, then uniform silver layer can be deposited.
  • plastic substance in the process according to the invention, that is, depositing a silver plating layer on the surface of plastic substance by electroless mirror silver reaction reducing ammoniacal silver nitrate with glucose, if plastic substance is c to have hardener coating, the plastic substance becomes easy to be processed by ammoniacal silver nitrate solution and the silver adheres strongly on the surface of the hardener-coated surface of the plastic substance when complex ion of silver in ammoniacal silver nitrate is reduced with glucose.
  • the hardener contains silane coupling and silica sol.
  • Silica(Si ⁇ 2) is the main component of glass and therefore, the hardener-coated surface of plastic becomes similar to the surface of glass. Therefore when silver complex in ammonium silver nitrate is reduced with glucose, deposition of silver easily takes place on the surface of plastic and can adhere strongly to the surface of the plastic substance.
  • electroless silver plating becomes to be caused on the surface of plastic easily.
  • it is activation treatment by coating of silica or adsorption of palladium metal, etching treatment by chromic acid mixture, plasma treatment, low reflection coating.
  • the color of plastic resin should not be necessarily transparent, but also colored transparent, smoke, opalescent or glass sky blue transparent. Colored part is all over the plastic resin, so that the surface is not affected by the coloring. Therefore, a silver layer deposited on the surface of the colored plastic is in good condition just like that on the transparent plastic.
  • the plastic mirror manufactured on transparent resin by electroless silver plating has an impression to be slightly yellow comparing to glass mirror, because glass has slightly color of green.
  • plastic having the similar color of glass it is possible to manufacture a plastic mirror that looks like glass mirror in tone of color can be manufactured. Furthermore, in case of a plastic mirror smoked with slightly various color, image in mirror does not look like reality, thus it can create calm. Plastic can be easily dyed comparing to glass. The invention makes it possible to manufacture new type of color mirror much easier.
  • Plastic can be formed in various shape much easier than glass. Mirror, shaped not plane, such as cylindrical, parabolic shaped, can hardly made by vapor deposition.
  • Wet silver plating solution can be applied to any shape; it dose not depend on the shape of plastic to be processed. In case of using the wet silver * plating solution the inside of parabolic shaped plastic substance can be easily plated by silver, which is impossible by vapor deposition methodology.
  • FIG. 1 is a schematical view of a plastic mirror according to preferred embodiments of the invention.
  • FIG. 2 is an explanatory view of a manufacturing method according to preferred embodiments of the invention.
  • FIG. 3 is a schematical view of a mid-air plastic mirror according to preferred embodiments of the invention.
  • a plastic mirror according to the preferred embodiments comprises plastic substance 1, silver thin layer 2 and protection layer 3 while the last is optional, and additionally, as shown Fig. 2, a manufacturing method of the plastic mirror according to the preferred embodiments comprises the steps of applying surface-active agent 4 onto the surface of the plastic substance 1 to activate the surface, applying silver plating solution 5 onto the surface-active agent coated surface of the plastic substance 1 to deposit the silver thin layer, and depositing the protection layer 3 onto the silver thin layer for the purpose of protection and sealing of it, while the last step is optional.
  • transparent polycarbonate (PC) is used as plastic resin.
  • This transparent PC is formed into a transparent substrate having the thickness of 10 mil. (0.25 millimeters), 20 mil (0.5 millimeters), 40 mil (1.0 millimeters), or 80 mil (2.0 millimeters).
  • Tin (II) chloride aqueous solution 37%HC1;1 ml is added to SnCl ? , 1.0 g 1
  • palladium chloride aqueous solution 37% HC1; 0.1 ml is added to PdCl , 0.1 g/1
  • surface-active agent straight-chain-alkylbenzene sulfonate, sodium alkylsulfate are used.
  • solution of surfaceactive agent is prepared by diluting 0.7 ml of dish washing liquid (Mama Lemon of Lion Corp.) which contains 27% surface-active agent, with 11 water (hereinafter referred to as
  • SAWS silver plating solution
  • sodium hydroxide aqueous solution NaOH 40g/l (B-Solution) and glucose aqueous solution 30g l (C-Solution) are used.
  • Said ammoniacal silver nitrate water solution AgNO added excess ammonia can be prepared by adding aqueous ammonia slowly to silver nitrate solution until precipitation disappears, further adding concentrated aqueous ammonia (28%) by 14 ml with solution 11. In the case of silver nitrate being 17g/l, concentrated aqueous ammonia (28%) 28ml is added into water 11.
  • Transparent substrate of polycarbonate (PC) ⁇ es ⁇ is dipped into tin chloride (II) aqueous solution for one minute, then it is dipped in palladium chloride aqueous solution for one minute. This procedure is repeated one more.
  • palladium metal which has the function of catalyst is deposited on the surface of the plastic in the above procedure, the surface of plastic is activated.
  • said SAWS is slightly coated onto the surface of the transparent substrate. This application of SAWS is accomplished by, for example, dropping or spraying the SAWS onto the substrate placed horizontally.
  • the SAWS is adsorbed onto hydrophobic surface of the substrate so that hydrophilic molecule of the SAWS is positioned to be outside of the surface, and therefore the surface of the said substrate becomes hydrophilic. Accordingly, silver solution can be spread all over the substrate without being repelled from the surface of the substrate.
  • the mixed solution as processed (Silver Plating Solution: hereinafter referred to as SPS) is applied (dropped or sprayed) onto the surface which has been just coated by SAWS, and the SPS applied surface is left as it is.
  • SPS Silicon Plating Solution
  • the SPS with the help of SAWS, can be spread over the surface without being repelled and deposit uniformly a silver thin film layer on the surface of said substrate through mirror silver reaction.
  • a copper protection thin layer is formed by copper (II) sulfate aqueous solution and reducing agent ( Zinc powder suspension) and then resin is coated onto the copper thin layer for protection and sealing.
  • silver film layer becomes thick and has high light reflectivity.
  • silver nitrate is an expensive material, and therefore, instead of using high concentration of silver nitrate, repeat of silver plating under low concentration of silver nitrate is preferable for economical reason. Therefore, a highly reflective mirror can be manufactured very easily at a significantly low cost.
  • a plastic mirror is lighter, stronger to mechanical stress and much safer than a glass mirror. Additionally, because a plastic mirror is lighter and safer, it is suitable to be attached to the inside of lid of a compact which comprises capsule containing cosmetic powder. It can be used as a mirror covering a wide area on the wall, and such usage is very difficult in case of glass mirror because of its weight and difficulty of handling. Moreover, a film-shaped plastic mirror can be attached on the wall in the manner similar to that of laminating wall paper. Further, a plastic mirror according to this embodiment can be formed in any shape and stuck to any curved or waved surface of construction after manufactured. For example, as shown in Fig. 3 it is possible to form midair plastic mirror.
  • a dish washing liquid called Mama Lemon sold by Lion Corp. containing surface-active agent straightchain-alkylbenzen sulfonate and sodium alkvlsulfate as anionic surfactant, in 27% is used.
  • other dish washing liquid or other surface-active agent can be used. It can be used in this embodiment as surface-active agent of anionic surfactant, soap ( alkali salt of fatty acid) or alkylnaphthalenesulfonate, and cationic surfactant such as primary amine and quaternary ammonium compound, and nonionic surfactant such as polyethylene glycol derivative, sugar ester, and amphoteric surfactant such as higher fatty amino acid.
  • a polycarbonate (PC) resin is used as a plastic resin.
  • PC polycarbonate
  • ploy-vinyl-chloride (PVC) resin, methacrylic resin (PMMA), polystyrene(PS) resin or styrene acrylonitrile copolymer (SAN) resin may be used.
  • substrates having a thickness of 10 mil, 20 mil, 40 ⁇ _il, and 80 mil are used. However, a substrate having a different thickness can also be used.
  • a plate of plastic resin is used as plastic resin substrate.
  • film of plastic resin can also be used.
  • a plastic mirror can be manufactured easily.
  • the film thickness can be in the range of 1 mil (0.2 millimeters) to 20 mil (0.5 millimeters), although more thin or more thick film can be used.
  • polyolefin series such as polyethylene (PE), polypropylene (PP), polyester series film such as polyethylene terephthalate(PET), polybutylene terephalate (PBT), polyamide series film such as 6-nylon, 6,6-nylon, 12-nylon, cellulosic plastics such as nitrocellulose and cellulose acetate (CA) and poly(vinyl alcohol) (PVC)
  • PE polyethylene
  • PP polypropylene
  • PET polyethylene terephthalate
  • PBT polybutylene terephalate
  • polyamide series film such as 6-nylon, 6,6-nylon, 12-nylon
  • cellulosic plastics such as nitrocellulose and cellulose acetate (CA) and poly(vinyl alcohol) (PVC)
  • CA nitrocellulose and cellulose acetate
  • PVC poly(vinyl alcohol)
  • transparent polycarbonate (PC) is used as a plastic resin.
  • the said resin is formed into transparent plate having thickness of 10 mil (0.25 millimeters), 20 mil (0.5 millimeters), 40 mil (1.0 millimeters), 80 mil (2.0 millimeters), 120 mil (3.0 millimeters), 160 mil (4.0 millimeters).
  • Surface-active agent used in this embodiment is the same as that in the first embodiment.
  • ammoniacal silver nitrate solution AgN0 10 to 17 g/1 added excess ammonium (D-Solution), sodium hydroxide aqueous solution NaOH 40g/l (E-Solution) and glucose aqueous solution CgH ⁇ Og 30g/l (F-
  • the mixed catalyst solution is used in the present embodiment.
  • Dilute hydrochloric acid (37% HC1 is diluted with water until the total volume of solution is 11) and mixed catalyst solution ( 60 to 320 ml of 37% HC1, lg of PdCl 2 and 22 to 50g of SnCl 2 -2H 2 O are diluted with water until the total volume of solution is 11) and accelerator solution ( 40g of sodium hydroxide is diluted with water until the total volume of solution is 11) are used.
  • Ammoniacal silver nitrate solution Ag _ 3 added excess ammonia used in this embodiment is the same as that used in the first embodiment.
  • a plate of polycarbonate resin is dipped into the mixed catalyst solution for two to three minutes. Then, it is dipped into the accelerating solution for five minutes and washed and rinsed with water. In the above processes, palladium having catalytic activity is absorbed on the surface of plastic resin.
  • the SAWS is coated slightly onto the surface of polycarbonate plate.
  • This application of SAWS may be accomplished by dropping or spraying the
  • the SAWS onto the substrate placed horizontally.
  • the SAWS is adsorbed onto hydrophobic surface of the substrate so that hydrophilic molecule of the SAWS is positioned to be outside of surface, and therefore the surface of the said substrate becomes hydrophilic. Accordingly, silver solution can be spread all over the substrate without being repelled from the surface of the substrate.
  • the SAW has to be minimized in volume.
  • the mixed solution as processed (Silver Plating Solution: hereinafter referred to as SPSII) is applied (dropped or sprayed) onto the surface of the plate which has been just coated by the SAWS.
  • SPSII can be spread over the surface without being repelled and deposit uniformly a silver thin film layer on the surface of the plate.
  • a copper thin layer is deposited on the silver thin film and coating resin is coated on the copper thin layer.
  • the plastic mirror manufactured according to this embodiment has the same effect and advantages as those of the first embodiment.
  • the color of the plastic resin is transparence in this embodiment, colored transparence, smoke, opalescence, glass sky blue transparence of plastic can be also used.
  • the activating process of the plastic surface could be eliminated.
  • manufactured plastic mirror has lower reflectivity, however it still can be used in limited practical application.
  • PC polycarbonate
  • the polycarbonate resin is used.
  • plastic resin such as polyvinyl chloride (PVC) resin, methacrylic resin (PMMA), polystyrene (PS) resin, styrene acrylonitrile copolymer (SAN) resin can be used.
  • PVC polyvinyl chloride
  • PMMA methacrylic resin
  • PS polystyrene
  • SAN styrene acrylonitrile copolymer
  • plates of plastic resin having thickness of 10 mil, 20 mil,
  • acrylic resin i.e polymethylmethacrylate, methacrylic resin or PMMA
  • the acrylic resin is formed into a plate having thickness of 20mil, 40mil, 80mil, 160mil,
  • surface-active agent similar to the first embodiment, straightchain- alkylbenzene sulfonate, sodium sulfonate are used.
  • solution of surface-active agent SAWSIIl is prepared by diluting dish washing liquid (Mama Lemon of Lion Corp.) containing 27% surface-active agent 0.3 ml to 2.0 ml with 11 water.
  • ammoniacal silver nitrate solution AgN ⁇ 37 to 34 g/1 added excess ammonia (G-Solution), sodium hydroxide aqueous solution NaOH 20g/l (H-Solution) and glucose aqueous solution CgH ⁇ Og 3 to 15g l (I-Solution) are used.
  • Ammoniacal silver nitrate solution AgN03 added excess ammonia used in this embodiment is the same as that used in the first embodiment. Namely, it can be prepared by adding aqueous ammonia slowly to silver nitrate solution until precipitation disappears, further adding concentrated aqueous ammonia (28%) 14 ml/1 with solution 11. In the case of silver nitrate being 34g/l, concentrated aqueous ammonia (28%) 56ml is added into water 11.
  • a plastic mirror according to this embodiment can be manufactured by using the above-mentioned materials and solutions.
  • the SAWSIIl is slightly coated onto the surface of the hardener coated acrylic resin (PMMA).
  • PMMA hardener coated acrylic resin
  • This application of the SAWSIIl may be accomplished by dropping or spraying the SAWSIIl onto the plate resin placed horizontally.
  • the surface of hardener coated acrylic resin becomes hydrophilic and silver plating solution can be smoothly spread all over the surface of the resin without being repelled from the surface of said substrate.
  • the SAWSIIl has to be minimized in volume. Then, the G-solution, H-Solution and I-solution are mixed together with the ratio of 1:1:1 at the temperature above 15 degrees Centigrade.
  • the mixed solution as processed or Silver Plating Solution is applied (dropped or sprayed) onto the surface of hardener coated acrylic resin which has been just coated by SAWSIIl.
  • the SPSIII with the help of SAWSIIl, can be uniformly spread over the surface without being repelled and deposit uniformly a silver thin film layer on the surface of the plate.
  • the G-solution, H-Solution and I-solution can be sprayed with the same volume separately on the same area of the surface of said hardener coated acrylic resin to mix said solution together on it.
  • a sequence of spraying on the surface one option is to spray the G-solution and H-solution then spray the I-solution. Other option is to spray all of solution at the same time.
  • a copper thin layer is deposited thereon, and coating resin is coated on the cooper thin layer for the purpose of protection and sealing.
  • the silver plating solution is applied repeatedly such as two to three times.
  • a plastic mirror manufactured in accordance with this embodiment has the same effect and advantages as those in the first and second embodiments.
  • the surface of the plastic resin is coated by hardener agent, the mirror according to this embodiment is hardly be damaged.
  • a plastic mirror comprising the hardener coated acrylic resin has advantage in optical characteristics, therefore it can be applied to backlight optical guide for liquid crystal display.
  • the hardener agent can be coated on either one side or both sides of the acrylic resin.
  • the color of plastic resin is not limited only to transparence, but also colored transparence, smoke, opalescence, glassy sky blue transparence. Furthermore, in the case that the plastic having the similar color to glass is used to manufacture, a plastic mirror looks like glass mirror in tone od color. As the plastic resin can be easily dyed variously, many types of plastic mirrors can be manufactured. In the case of smoke plastic, a plastic mirror manufactured looks calm. In the case of using the plastic resin of other colored transparence a fantasy plastic mirror can be manufactured. The invention makes it possible to manufacture the various color mirrors easily In this embodiment an acrylic resin is used. However, other plastic resin such as polyvinyl chloride (PVC) resin, polycarbonate resin (PC) resin, polystyrene (PS) resin or styrene acrylonitrile copolymer (SAN) resin can be used.
  • PVC polyvinyl chloride
  • PC polycarbonate resin
  • PS polystyrene
  • SAN styrene acrylonit
  • hardener coated acrylic resin is used.
  • other treated plastic resin can be used.
  • Inorganic material such as glass thin film can be formed onto the surface of plastic resin.
  • Etched plastic with chromium acid solution, plasma treated plastic for making the surface of plastic to be hydrophilic or plastic coated with low reflective material for reducing the reflection from the surface of plastic can also be used.
  • silica coated plastic resin the coating is processed at the low temperature, and therefore the heat treatment is not required. Therefore, even if the plastic substrate is molded plastic formed to a sophisticated shape, it can also be coated without transformation.
  • the application of silica coating hardens the surface of plastic substrate just like the coating of hardener, and therefore it can provide a plastic mirror having advantages in lowering abrasion and scratch.
  • Silica coating makes silver plating easier even though the plastic surface is not treated by palladium sal .
  • the hardener coated plastic has the same advantages.
  • low reflective material coating means that three layers of significantly higher refractive index and significantly lower refractive index comparing to substance are alternately coated on the said plastic surface to prohibit reflection almost completely.
  • Plastic resin can be formed into various shapes much easier than glass.
  • a plastic mirror can be bent into non-planar shapes such as cylindrical shape after manufactured.
  • a plastic mirror having any shape such as parabola shape can be manufactured using silver plating solution, because the inside and/or outside of the plastic having the parabolic shape can easily be plated by silver plating but it can hardly be formed by vapor deposition or sputtering methodology.
  • a highly reflective plastic mirror can be provided very easily at a low cost.

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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)
  • Optical Elements Other Than Lenses (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Abstract

Miroir en plastique comprenant une substance plastique (1) enduite d'un agent tensioactif (4), et une mince couche d'argent (2) déposée à la surface du substrat en plastique par placage à l'argent non électrolytique après le revêtement par l'agent tensioactif. On fabrique ce produit en appliquant un activateur de surface à la surface de la substance plastique et en appliquant ensuite un liquide de placage à l'argent (5) sur ladite surface, le liquide se dispersant uniformément sur la surface, de manière à former une mince couche en plastique de grande qualité et présentant un fort pouvoir réfléchissant, par une réaction de placage à l'argent non électrolytique.
PCT/US1992/010425 1991-12-04 1992-12-03 Miroir en plastique et procede de fabrication Ceased WO1993010975A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3/320395 1991-12-04
JP32039591 1991-12-04

Publications (1)

Publication Number Publication Date
WO1993010975A1 true WO1993010975A1 (fr) 1993-06-10

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PCT/US1992/010425 Ceased WO1993010975A1 (fr) 1991-12-04 1992-12-03 Miroir en plastique et procede de fabrication

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000035A1 (fr) * 1992-06-24 1994-01-06 Uwe Immendorf Procede de fabrication d'un miroir en matiere plastique, notamment comme constituant d'un recipient pour produits cosmetiques
DE19548165A1 (de) * 1995-12-22 1997-06-26 Klaus Tecker Verfahren zum Herstellen einer Chrom optisch entsprechenden Schicht auf der Oberfläche eines Körpers
WO2000028853A1 (fr) * 1998-11-12 2000-05-25 Carlos Alberto Andrade Silva Surface reflechissante souple
WO2004040035A1 (fr) * 2002-11-01 2004-05-13 Advance Company, Ltd. Procede de formation d'un film mince de miroir d'argent, et procede de formation d'une couche de revetement comprenant un film mince de miroir d'argent
EP1624088A1 (fr) * 2004-08-02 2006-02-08 Yasuhiro Mori Procede de fabrication d'un corps stratifie avec une couche fine metalique
US9205455B2 (en) 2014-01-09 2015-12-08 Nano And Advanced Materials Institute Limited Surface treatment of mirror finish
WO2023028079A1 (fr) * 2021-08-23 2023-03-02 Moni Kids, Inc. Jouets interactifs conformes à la méthode éducative montessori et aux exigences de sécurité

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242412A (en) * 1977-09-27 1980-12-30 Simitomo Chemical Company, Limited Coated materials and production thereof
US4242413A (en) * 1976-04-22 1980-12-30 Sumitomo Chemical Company, Limited Vapor plating method for plastics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4242413A (en) * 1976-04-22 1980-12-30 Sumitomo Chemical Company, Limited Vapor plating method for plastics
US4242412A (en) * 1977-09-27 1980-12-30 Simitomo Chemical Company, Limited Coated materials and production thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994000035A1 (fr) * 1992-06-24 1994-01-06 Uwe Immendorf Procede de fabrication d'un miroir en matiere plastique, notamment comme constituant d'un recipient pour produits cosmetiques
DE19548165A1 (de) * 1995-12-22 1997-06-26 Klaus Tecker Verfahren zum Herstellen einer Chrom optisch entsprechenden Schicht auf der Oberfläche eines Körpers
WO2000028853A1 (fr) * 1998-11-12 2000-05-25 Carlos Alberto Andrade Silva Surface reflechissante souple
WO2004040035A1 (fr) * 2002-11-01 2004-05-13 Advance Company, Ltd. Procede de formation d'un film mince de miroir d'argent, et procede de formation d'une couche de revetement comprenant un film mince de miroir d'argent
EP1624088A1 (fr) * 2004-08-02 2006-02-08 Yasuhiro Mori Procede de fabrication d'un corps stratifie avec une couche fine metalique
KR100681301B1 (ko) * 2004-08-02 2007-02-09 야스히로 모리 박막 금속 적층체의 제조 방법
US9205455B2 (en) 2014-01-09 2015-12-08 Nano And Advanced Materials Institute Limited Surface treatment of mirror finish
WO2023028079A1 (fr) * 2021-08-23 2023-03-02 Moni Kids, Inc. Jouets interactifs conformes à la méthode éducative montessori et aux exigences de sécurité

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