WO1991009985A1 - Procede de plaquage autocatalytique - Google Patents
Procede de plaquage autocatalytique Download PDFInfo
- Publication number
- WO1991009985A1 WO1991009985A1 PCT/JP1990/001662 JP9001662W WO9109985A1 WO 1991009985 A1 WO1991009985 A1 WO 1991009985A1 JP 9001662 W JP9001662 W JP 9001662W WO 9109985 A1 WO9109985 A1 WO 9109985A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electroless plating
- adhesive
- resin
- styrene
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
-
- 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
- C23C18/2006—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
- C23C18/2026—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by radiant energy
- C23C18/2033—Heat
-
- 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
- C23C18/2006—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30
- C23C18/2046—Pretreatment of the material to be coated of organic surfaces, e.g. resins by other methods than those of C23C18/22 - C23C18/30 by chemical pretreatment
- C23C18/2073—Multistep pretreatment
- C23C18/208—Multistep pretreatment with use of metal first
-
- 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
-
- 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
- C23C18/30—Activating or accelerating or sensitising with palladium or other noble metal
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
- C25D5/56—Electroplating of non-metallic surfaces of plastics
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/386—Improvement of the adhesion between the insulating substrate and the metal by the use of an organic polymeric bonding layer, e.g. adhesive
- H05K3/387—Improvement of the adhesion between the insulating substrate and the metal by the use of an organic polymeric bonding layer, e.g. adhesive for electroless plating
Definitions
- the present invention comprises a styrene-based elastomer commonly used as a component of a heat-sealing adhesive, or a styrene-based elastomer and a tackifying resin having a molecular structure similar to that of the elastomer.
- This is a new electroless plating method that does not require a surface corrosion step of forming a metal layer by electroless plating on the coating obtained by applying and drying the composition solution on the coated surface. It can be used instead of electroless plating in the previous process of resin plating.
- a particular object of the present invention is the use in the field of electroless plating for preventing electromagnetic interference. Background art
- Electroless plating is performed as a process for converting a non-conductive synthetic resin product into a conductor for electrolytic plating.
- a method is used in which a pit is formed on the surface, and then the plating layer is bonded to the surface of the base material by an anchoring effect of a metal that protrudes into the inner surface of the pit by electroless plating.
- a method of applying a curable adhesive which is more easily corroded than the base material on the surface to be covered and performing corrosion-less and then electroless plating is used for printed wiring.
- a corrosive process with a strong chemical is involved, and this corro- sion process involves steps before and after degreasing, washing, neutralizing, and washing.
- conventional techniques of electromagnetic wave shielding include a method of applying a conductive paint, spraying zinc, or forming a sandwich using a conductive synthetic resin filled with a conductive substance as a laminate or a core material.
- conductive paints are the most prevalent.
- the electromagnetic wave shielding effect of the electroless plating film has been highly evaluated, but it has not been widely used due to the following problems.
- the conventional electroless plating technology requires long-term processes and requires a large amount of strong corrosive liquids such as chromic acid and sulfuric acid. There is a strong constraint on the inability to implement this and economic problems such as pollution control costs.
- the present inventors have proposed a method for electrolessly plating a synthetic resin using the anchoring effect of a metal deposited on the inner surface of a corrosion hole. Apply a hot-melt adhesive solution to the plating surface without corrosion, dry it to form an adhesive layer, apply electroless plating on it, and then heat to melt the adhesive layer Invented a method of bonding a plating layer by developing an adhesive effect, and conducted various studies, and found that the plating method was possible when using an adhesive having a polymer compound having a polar group in its components.
- a patent application was filed earlier (Japanese Patent Application No. 1.198.0.7).
- the present inventors are conducting various studies on the adhesive composition, and have found that styrene / butadiene / styrene block copolymer, which has no polar group, and an aliphatic aromatic copolymer
- the electroless plating quickly causes copper to be deposited on the coating of the composition composed of the combination with the hydrocarbon-based tackifying resin, so that a plating layer having a good appearance can be obtained, and the plating layer must be heated.
- a phenomenon other than absolutely that the adhesion strength by a cross-cut test shows 100 to 100 in the as it is state was found, and the present invention was found as a result of various studies to find a solution to the above problem. Was completed. DISCLOSURE OF THE INVENTION.
- An electroless plating method characterized by comprising the following steps (1) to (1).
- the product treated with the reaction accelerator is immersed in an electroless plating solution to form a plating layer on the adhesive-coated surface.
- the composition of the adhesive for electroless plating is 100 to 50% by weight of a styrene-based thermoplastic elastomer and 0 to 50% by weight of an aliphatic / aromatic copolymerized hydrocarbon-based tackifier resin. To 50% by weight Is preferred.
- the surface material of the above-mentioned coated product is preferably a styrene resin or a styrene resin modified product.
- the material of the product to which the method of the present invention can be directly applied is that it exhibits adhesiveness with the adhesive for electroless plating used in the method of the present invention, and is a solvent for the composition, such as toluene and xylene. Any solvent that does not crack in contact with an aromatic solvent, chlorinated hydrocarbon solvent, butyl acetate, tetrahydrofuran, or the like may be used.
- Styrene resins such as acrylonitrile butadiene.
- Styrene resin hereinafter abbreviated as ABS
- modified PP0 styrene-modified polyolefin resin
- PBT polybutylene terephthalate resin
- FRP nylon or fiber reinforced plastic
- phenolic resin Also applicable to thermosetting resins such as epoxy resins.
- a primer or primer is applied to the surface to be coated to form a bondable surface, and then the method of the present invention is applied.
- Styrene-based thermoplastic elastomer which is the A component of the composition to be used for the adhesive layer for electroless plating, includes styrene ⁇ butadiene / styrene block cobolimer (hereinafter abbreviated as SBS), and styrene.
- SBS styrene ⁇ butadiene / styrene block cobolimer
- SIS styrene block Koborima
- the copolymerization mode is such that styrene blocks only the two terminals of the molecule.
- Any of those having copolymerized with styrene and those having styrene block copolymerized in the middle may be used, but the latter is more preferable.
- the degree of copolymerization of styrene is preferably 30% or more.
- the aliphatic gen monomer of the copolymer component is an aliphatic gen compound such as 1,3-pentadiene and isoprene
- the aromatic butyl monomer is ⁇ -methylstyrene, vinyl toluene, and methyl benzene.
- Those having a substituent at the or-position and on the aromatic ring, such as tinolei soprodinyltoluene, and indene It is a thing that carries out.
- a ketone resin is a condensation resin of an aromatic ketone such as cyclohexanone or acetate phenone and formaldehyde, and the methyl sigma group is not formed.
- the structure is a methylene bonded at position 6.
- the amount of the tackifying resin is preferably 0 to 50% by weight, and if it is 50% by weight or more, the adhesion to the plating layer is reduced.
- Styrene-based thermoplastic elastomer that does not contain any adhesion-imparting resin at all.-The ability to obtain a plating layer that exhibits strong adhesion even with only the components. In this case, the viscosity of the solution is high, and the workability and the adhesion layer in the coating process are high.
- the method of forming an adhesive layer having the above composition in the first step, which is inferior to that obtained by adding a tackifier resin in the appearance of the adhesive includes a method of spraying an adhesive solution using a spray gun and a method using a coater. Coating, various printing methods, methods using dispensers, etc., which are selected according to the purpose of plating, the plating site, and the shape of the object.
- the cleaning conditions in the second step are slightly stronger than normal conditions because the adhesive layer is non-polar.
- the steps are ordinary methods.
- Styrene-based elastomers are oils with double bonds between aromatic rings.
- the molecular structure of the fatty acid has a molecular structure, and the molecular structure of the tackifier resin is also very close to or similar to the previous structure.
- the bonding mechanism is considered to be different from the normal bonding mechanism.
- the plating layer must adhere to the styrene-based elastomer alone.
- a combination of a styrene elastomer with an aliphatic hydrocarbon-based tackifier resin nor a combination with an aromatic hydrocarbon-based tackifier resin is possible.
- the elastomer is not only ethylene / vinyl acetate copolymer resin, but also styrene obtained by hydrogenation of SBS.' Combination with a len-styrene copolymer resin was also impossible.
- Adhesion and peeling tests with copper foil were performed on adhesives of various compositions using a test piece of modified PP0.In each case, the adhesive was peeled off from the copper foil surface, and its peel strength and adhesion of the copper-coated film No correlation was found between strength and strength.
- Adhesives for electroless plating having the compositions shown in Table 1 were prepared, and an electroless plating test was performed using these adhesives according to the method of the present invention.
- Table 2 shows the test results.
- the aliphatic gen monomer / aromatic vinyl monomer copolymer type hydrocarbon resin is abbreviated as aliphatic / aromatic copolymer
- terpene / aromatic vinyl monomer copolymer type hydrocarbon resin The resin was abbreviated as terpene copolymer.
- Degreasing agent consisting of sodium borate, sodium phosphate and surfactant
- Electroless copper plating liquid Copper sulfate, formaldehyde and
- ANote 3 A styrene / butadiene / styrene block polymer having a styrene block in addition to both ends of the molecule (styrene copolymerization degree: 30%)
- Citagen 'Copolymer resin such as indene BNote 2 Isoprene ⁇ ⁇ ⁇ ⁇ alkyl-substituted methyl styrene polymer resin
- the step of corroding the surface to be covered is not required, so that electroless plating can be easily performed anywhere.
- this method uses styrene resins such as ABS resin, styrene-modified PP0 resin, and styrene, which are most commonly used in electronic equipment. This is an electroless plating method suitable for a ren-modified resin.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Chemically Coating (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1/334164 | 1989-12-22 | ||
| JP33416489A JPH0762253B2 (ja) | 1989-12-22 | 1989-12-22 | 無電解めっき方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1991009985A1 true WO1991009985A1 (fr) | 1991-07-11 |
Family
ID=18274257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1990/001662 Ceased WO1991009985A1 (fr) | 1989-12-22 | 1990-12-20 | Procede de plaquage autocatalytique |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5230928A (ja) |
| EP (1) | EP0460226A1 (ja) |
| JP (1) | JPH0762253B2 (ja) |
| CA (1) | CA2046882A1 (ja) |
| WO (1) | WO1991009985A1 (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103771A (ja) * | 1990-08-23 | 1992-04-06 | Sankei Giken Kogyo Kk | 求電子的な極性を有する材料の無電解めっき方法 |
| JPH0628358U (ja) * | 1992-09-18 | 1994-04-15 | 株式会社大金製作所 | クラッチレリーズ用油圧シリンダ装置 |
| EP0737710B1 (en) * | 1995-03-09 | 2005-12-21 | Sankei Giken Kogyo Kabushiki Kaisha | Resin composition for electroless metal deposition and method for electroless metal deposition |
| US6875691B2 (en) * | 2002-06-21 | 2005-04-05 | Mattson Technology, Inc. | Temperature control sequence of electroless plating baths |
| US6588811B1 (en) | 2002-12-03 | 2003-07-08 | Edward B. Ferguson | Reversible magnetic door stop/latch |
| US8540292B2 (en) | 2002-12-03 | 2013-09-24 | Edward B. Ferguson | Reversible magnetic door stop/latch |
| US6797312B2 (en) * | 2003-01-21 | 2004-09-28 | Mattson Technology, Inc. | Electroless plating solution and process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227671B2 (ja) * | 1972-04-25 | 1977-07-21 | ||
| JPS5359767A (en) * | 1976-11-10 | 1978-05-29 | Matsushita Electric Industrial Co Ltd | Coating materials for substrate of chemical plating |
| JPS5758435B2 (ja) * | 1974-09-02 | 1982-12-09 | Hitachi Kasei Kogyo Kk | |
| JPH0364481A (ja) * | 1989-07-31 | 1991-03-19 | Sankei Giken Kogyo Kk | 合成樹脂製品の無電解めっき方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3471320A (en) * | 1966-07-01 | 1969-10-07 | Enthone | Conditioning of formed articles of acrylonitrile - butadiene - styrene terpolymer |
| US4148945A (en) * | 1974-02-04 | 1979-04-10 | The Dow Chemical Company | Process of metal plating on plastics |
| JPS50158642A (ja) * | 1974-06-13 | 1975-12-22 | ||
| JPS5110609A (en) * | 1974-07-17 | 1976-01-28 | Jiro Saito | Konpakushonpairuno sekohoto sonosekosochi |
| US4216246A (en) * | 1977-05-14 | 1980-08-05 | Hitachi Chemical Company, Ltd. | Method of improving adhesion between insulating substrates and metal deposits electrolessly plated thereon, and method of making additive printed circuit boards |
| US4246320A (en) * | 1979-03-15 | 1981-01-20 | Stauffer Chemical Company | Plated acrylate/styrene/acrylonitrile article |
| US4448811A (en) * | 1981-12-30 | 1984-05-15 | Omi International Corporation | Oxidizing agent for acidic accelerator in electroless metal plating process |
| JPS60228678A (ja) * | 1984-04-26 | 1985-11-13 | Agency Of Ind Science & Technol | 高分子材料表面に対する金属被膜形成方法 |
| JPS6191364A (ja) * | 1984-10-12 | 1986-05-09 | Seiko Epson Corp | プラスチツク上への無電解メツキ方法 |
| IT1217328B (it) * | 1988-02-01 | 1990-03-22 | Donegani Guido Ist | Processo per la metallizzazione di materiali fibrosi |
-
1989
- 1989-12-22 JP JP33416489A patent/JPH0762253B2/ja not_active Expired - Lifetime
-
1990
- 1990-12-20 WO PCT/JP1990/001662 patent/WO1991009985A1/ja not_active Ceased
- 1990-12-20 EP EP91900921A patent/EP0460226A1/en not_active Withdrawn
- 1990-12-20 CA CA 2046882 patent/CA2046882A1/en not_active Abandoned
- 1990-12-20 US US07/721,656 patent/US5230928A/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227671B2 (ja) * | 1972-04-25 | 1977-07-21 | ||
| JPS5758435B2 (ja) * | 1974-09-02 | 1982-12-09 | Hitachi Kasei Kogyo Kk | |
| JPS5359767A (en) * | 1976-11-10 | 1978-05-29 | Matsushita Electric Industrial Co Ltd | Coating materials for substrate of chemical plating |
| JPH0364481A (ja) * | 1989-07-31 | 1991-03-19 | Sankei Giken Kogyo Kk | 合成樹脂製品の無電解めっき方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0460226A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US5230928A (en) | 1993-07-27 |
| EP0460226A4 (ja) | 1994-02-02 |
| JPH0762253B2 (ja) | 1995-07-05 |
| CA2046882A1 (en) | 1992-06-21 |
| EP0460226A1 (en) | 1991-12-11 |
| JPH03193881A (ja) | 1991-08-23 |
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