US20110151120A1 - Surface treating method for making the same - Google Patents
Surface treating method for making the same Download PDFInfo
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- US20110151120A1 US20110151120A1 US13/041,542 US201113041542A US2011151120A1 US 20110151120 A1 US20110151120 A1 US 20110151120A1 US 201113041542 A US201113041542 A US 201113041542A US 2011151120 A1 US2011151120 A1 US 2011151120A1
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- United States
- Prior art keywords
- layer
- housing
- adhesive
- plating layer
- surface treating
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000010410 layer Substances 0.000 claims abstract description 84
- 238000007747 plating Methods 0.000 claims abstract description 41
- 239000012790 adhesive layer Substances 0.000 claims abstract description 29
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 239000004922 lacquer Substances 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 8
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- 238000001465 metallisation Methods 0.000 claims description 8
- 238000005240 physical vapour deposition Methods 0.000 claims description 6
- 238000005229 chemical vapour deposition Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 14
- 239000004925 Acrylic resin Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000001723 curing Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- MDFFNEOEWAXZRQ-UHFFFAOYSA-N aminyl Chemical compound [NH2] MDFFNEOEWAXZRQ-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- -1 polypropylene chloride Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001029 thermal curing Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
- Y10T428/1317—Multilayer [continuous layer]
- Y10T428/1321—Polymer or resin containing [i.e., natural or synthetic]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1355—Elemental metal containing [e.g., substrate, foil, film, coating, etc.]
- Y10T428/1359—Three or more layers [continuous layer]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23—Sheet including cover or casing
- Y10T428/239—Complete cover or casing
Definitions
- the present invention generally relates to housings, and particularly, to a housing used in electronic devices, and a surface treating method for making the housing.
- a typical method for making a housing having metallic appearances includes the following steps: first, coating a primer onto a surface of a plastic board to form a bottom layer; second, depositing a metallic layer on the bottom layer by vacuum metallization.
- the metallic layer formed by vacuum metallization has relatively high chemical activity, thus metallic layer is prone to being oxidized or corroded. Thus, the appearance of the housing may be compromised.
- a surface treating method for making a housing having a main body includes: forming a plating layer on a main body; coating an adhesive on the plating layer to form an adhesive layer; and coating a lacquer on the adhesive layer to form an outer layer.
- Another surface treating method for making a housing having a main body includes: coating a primer on a main body to form a bottom layer; forming a plating layer on the bottom layer; coating an adhesive on the plating layer to form an adhesive layer; and coating a lacquer on the adhesive layer to form a outer layer.
- FIG. 1 is a side, cross-sectional view of a housing in accordance with a first preferred embodiment of the present invention.
- FIG. 2 is a side, cross-sectional view of a housing in accordance with a second preferred embodiment of the present invention.
- the housing 10 may be used for a portable electronic device, such as a mobile phone.
- the housing 10 includes a main body 12 and a plurality of coatings 14 formed on the main body 12 .
- the coatings 14 include a plating layer 142 , an adhesive layer 144 , and an outer layer 146 .
- the plating layer 142 connects to the main body 12 .
- the adhesive layer 144 is applied on the plating layer 142 for connecting the outer layer 146 to the plating layer 142 .
- a thickness of the plating layer 142 is preferably in a range from about 0.01 microns to about 10 microns.
- a thickness of the adhesive layer 144 is preferably in a range from about 1 micron to about 20 microns.
- a thickness of the outer layer 146 is preferably in a range from about 10 microns to about 80 microns.
- a material of the main body 12 is selected from the group consisting of glass, ceramic, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate, composition of glass fiber and nylon, and any suitable combination thereof. Furthermore, to improve physical attractiveness of the housing 10 , an outer surface of the main body 12 is, preferably, smooth.
- the plating layer 142 can be either electrically insulative or electrically conductive.
- a material of the plating layer 142 may be selected from the group consisting of stannum, aluminum, silicon-aluminum alloy, titanium, titanium carbide, titanium nitride, cadmium, indium, silicon dioxide, stainless steel, and any suitable combination thereof.
- a material of the adhesive layer 144 is made of a polyolefin chloride, such as polyvinyl chloride and polypropylene chloride.
- the adhesive layer 144 includes polyolefin chloride in an amount by weight from about 1% to about 99% and some additive materials.
- the additive material can be a polymer having one of a hydroxyl, amidogen, carboxyl, and epoxy group.
- a material of the outer layer 146 includes acrylic resin.
- An exemplary surface treating method for making the housing 10 is as follows. First, the plating layer 142 is formed on the main body 12 . Second, an adhesive is coated on the plating layer 142 to form an adhesive layer 144 on the plating layer 142 . Third, a lacquer is coated on adhesive layer 144 to form an outer layer 146 .
- the process of forming the plating layer 142 can be done by performing a physical vapor deposition (PVD), a non-conductive vacuum metallization (NCVM) or a chemical vapor deposition (CVD) method. If the physical vapor deposition (PVD) or the non-conductive vacuum metallization method is used to prepare the plating layer 142 , a plating material for the plating layer 142 may be a material selected from the group consisting of stannum, aluminum, silicon-aluminum alloy, titanium, titanium carbide, titanium nitride, cadmium, indium, silicon dioxide, stainless steel, and any suitable combination thereof. Excitation of the plating material may be performed by magneto-controlled sputter or plasma sputter. It should be pointed out that, if deposition is performed by the non-conductive vacuum metallization method, the plating layer 142 is electrically insulative.
- the step of coating the adhesive is performed under a suitable temperature, such as normal temperature (20° C.).
- the adhesive is made of a polyolefin chloride, such as polyvinyl chloride and polypropylene chloride.
- the adhesive layer 144 includes polyolefin chloride in an amount by weight from about 1% to about 99% and some additive materials.
- the additive material can be a polymer having one of a hydroxyl, amidogen, carboxyl, and epoxy group.
- the step of coating the lacquer is performed by spraying or brush coating.
- the lacquer can be a transparent lacquer or a color lacquer.
- the lacquer can include acrylic resin.
- the lacquer may further be leveled and solidified.
- the process of solidifying the lacquer is performed by a thermal curing method or a light curing method. For example, if the lacquer is an ultraviolet-cured lacquer, the process of solidifying the lacquer is preferably performed by a ultraviolet curing method.
- the adhesive layer 144 increases a bonding strength between the plating layer 142 and the outer layer 146 .
- the adhesive layer 144 prevents the outer layer 146 from detaching off the housing 10 .
- the plating layer 142 is not easily to be damaged, and an appearance of the portable electronic device using the housing 10 is improved.
- the material of the adhesive layer 144 includes polyolefin chloride. Chlorine atoms of the adhesive layer 144 and metal atoms of the plating layer 142 would form chemical bonds, thereby enhancing the bonding strength of the plating layer 142 and the adhesive layer 144 . Polymer chain of the adhesive layer 144 would combine with polymer chain of the outer layer 146 , thereby enhancing the bonding strength of the adhesive layer 144 and the outer layer 146 . Thus the outer layer 146 is tightly bonded on the housing 10 .
- the outer layer 146 includes acrylic resin. Acrylic resin has elasticity, thereby making the outer layer 146 soft and comfortable when touched.
- the appearance of the housing 10 may meet different needs of the portable electronic device.
- the plating layer 142 is deposited by the non-conductive vacuum metallization method, the plating layer 142 is electrically insulative. Thus the plating layer 142 would not interfere with electromagnetic waves or electrostatic discharge.
- the housing 20 includes a main body 22 and a plurality of coatings 24 formed on the main body 22 .
- the coatings 24 include a plating layer 242 , an adhesive layer 244 , and an outer layer 246 .
- the housing 20 is similar in principle to the housing 10 , however, the coatings 24 further includes a bottom layer 241 .
- the bottom layer 241 is formed on the main body 22 , and connects to the plating layer 242 .
- a thickness of the bottom layer 241 is preferably in a range from about 1 micron to about 30 microns.
- a surface treating method for making the housing 20 includes the following steps: first, coating a primer on a main body, then leveling and solidifying the primer, thereby forming the bottom layer 241 ; second, forming the plating layer 242 on the bottom layer 241 ; third, coating an adhesive on the plating layer 242 to form an adhesive layer 244 ; finally, coating a lacquer on the adhesive layer 244 to form the outer layer 246 .
- the primer may include acrylic resin.
- the process of solidifying the primer can be done by performing a thermal curing method or a light curing method. It should be understood that, with the help of the bottom layer 241 , an appearance of the housing 20 can be improved, even if a surface of the main body 22 that connects to the bottom layer 241 is zigzag.
- the scope of the present housing and surface treating method is not limited to the embodiments described above.
- the portable electronic device can be a personal digital assistant, a MP3 player, or a MP4 player.
- the housings can also be utilized in some devices other than the portable electronic devices, such as a table computer.
- the surface treating method may be used for a workpiece other than the housing.
Abstract
A surface treating method for making a housing having a main body includes forming a plating layer on the main body, coating an adhesive on the plating layer to form an adhesive layer, and coating a lacquer on the adhesive layer to form an outer layer. The adhesive comprises polyolefin chloride.
Description
- The present application is a divisional application of U.S. patent application Ser. No. 11/966,969, filed on Dec. 28, 2007, which claims foreign priority based on Chinese Patent application No. 200710202270.0, filed in China on Oct. 25, 2007.
- 1. Field of the Invention
- The present invention generally relates to housings, and particularly, to a housing used in electronic devices, and a surface treating method for making the housing.
- 2. Discussion of the Related Art
- In recent years, there has been an increase in demand for portable electronic devices, such as personal digital assistants (PDAs), mobile phones, MP3 players and MP4 players. To make the portable electronic devices more physically appealing, the housings of the portable electronic devices may be decorated to have different appearances.
- Generally, housings that exhibit different appearances are done by layers of coating. A typical method for making a housing having metallic appearances includes the following steps: first, coating a primer onto a surface of a plastic board to form a bottom layer; second, depositing a metallic layer on the bottom layer by vacuum metallization.
- However, the metallic layer formed by vacuum metallization has relatively high chemical activity, thus metallic layer is prone to being oxidized or corroded. Thus, the appearance of the housing may be compromised.
- To prevent the metallic layer from being oxidized or corroded, generally a transparent layer is coated on the metallic layer to form an outer layer. The outer layer may protect the metallic layer to a certain extent and for a certain time. However, the outer transparent layer would, eventually, peel off from the metallic layer, leaving the metallic layer exposed to oxidation or corrosion.
- Therefore, a new housing and surface treating methods for making the housing are desired in order to overcome the above-described shortcomings
- A surface treating method for making a housing having a main body, includes: forming a plating layer on a main body; coating an adhesive on the plating layer to form an adhesive layer; and coating a lacquer on the adhesive layer to form an outer layer.
- Another surface treating method for making a housing having a main body, includes: coating a primer on a main body to form a bottom layer; forming a plating layer on the bottom layer; coating an adhesive on the plating layer to form an adhesive layer; and coating a lacquer on the adhesive layer to form a outer layer.
- Other novel features will become more apparent from the following detailed description, when taken in conjunction with the accompanying drawings.
- The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present housing and surface treating methods for making the housing. Moreover, in the drawings, like reference numerals designate corresponding parts throughout several views, and all the views are schematic.
-
FIG. 1 is a side, cross-sectional view of a housing in accordance with a first preferred embodiment of the present invention. -
FIG. 2 is a side, cross-sectional view of a housing in accordance with a second preferred embodiment of the present invention. - Reference will now be made to the drawings to describe preferred embodiments of the present housing and surface treating method for making the housing in detail.
- Referring to
FIG. 1 , ahousing 10 according to a first embodiment is shown. Thehousing 10 may be used for a portable electronic device, such as a mobile phone. Thehousing 10 includes amain body 12 and a plurality ofcoatings 14 formed on themain body 12. Thecoatings 14 include aplating layer 142, anadhesive layer 144, and anouter layer 146. The platinglayer 142 connects to themain body 12. Theadhesive layer 144 is applied on theplating layer 142 for connecting theouter layer 146 to theplating layer 142. A thickness of theplating layer 142 is preferably in a range from about 0.01 microns to about 10 microns. A thickness of theadhesive layer 144 is preferably in a range from about 1 micron to about 20 microns. A thickness of theouter layer 146 is preferably in a range from about 10 microns to about 80 microns. - A material of the
main body 12 is selected from the group consisting of glass, ceramic, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polymethyl methacrylate, composition of glass fiber and nylon, and any suitable combination thereof. Furthermore, to improve physical attractiveness of thehousing 10, an outer surface of themain body 12 is, preferably, smooth. - The
plating layer 142 can be either electrically insulative or electrically conductive. A material of theplating layer 142 may be selected from the group consisting of stannum, aluminum, silicon-aluminum alloy, titanium, titanium carbide, titanium nitride, cadmium, indium, silicon dioxide, stainless steel, and any suitable combination thereof. - A material of the
adhesive layer 144 is made of a polyolefin chloride, such as polyvinyl chloride and polypropylene chloride. In alternative embodiments, theadhesive layer 144 includes polyolefin chloride in an amount by weight from about 1% to about 99% and some additive materials. The additive material can be a polymer having one of a hydroxyl, amidogen, carboxyl, and epoxy group. - A material of the
outer layer 146 includes acrylic resin. - An exemplary surface treating method for making the
housing 10 is as follows. First, theplating layer 142 is formed on themain body 12. Second, an adhesive is coated on theplating layer 142 to form anadhesive layer 144 on theplating layer 142. Third, a lacquer is coated onadhesive layer 144 to form anouter layer 146. - The process of forming the
plating layer 142 can be done by performing a physical vapor deposition (PVD), a non-conductive vacuum metallization (NCVM) or a chemical vapor deposition (CVD) method. If the physical vapor deposition (PVD) or the non-conductive vacuum metallization method is used to prepare theplating layer 142, a plating material for theplating layer 142 may be a material selected from the group consisting of stannum, aluminum, silicon-aluminum alloy, titanium, titanium carbide, titanium nitride, cadmium, indium, silicon dioxide, stainless steel, and any suitable combination thereof. Excitation of the plating material may be performed by magneto-controlled sputter or plasma sputter. It should be pointed out that, if deposition is performed by the non-conductive vacuum metallization method, theplating layer 142 is electrically insulative. - The step of coating the adhesive is performed under a suitable temperature, such as normal temperature (20° C.). The adhesive is made of a polyolefin chloride, such as polyvinyl chloride and polypropylene chloride. In alternative embodiments, the
adhesive layer 144 includes polyolefin chloride in an amount by weight from about 1% to about 99% and some additive materials. The additive material can be a polymer having one of a hydroxyl, amidogen, carboxyl, and epoxy group. - The step of coating the lacquer is performed by spraying or brush coating. The lacquer can be a transparent lacquer or a color lacquer. The lacquer can include acrylic resin. After coating on the
adhesive layer 144, the lacquer may further be leveled and solidified. The process of solidifying the lacquer is performed by a thermal curing method or a light curing method. For example, if the lacquer is an ultraviolet-cured lacquer, the process of solidifying the lacquer is preferably performed by a ultraviolet curing method. - The
adhesive layer 144 increases a bonding strength between theplating layer 142 and theouter layer 146. Thus, theadhesive layer 144 prevents theouter layer 146 from detaching off thehousing 10. Furthermore, theplating layer 142 is not easily to be damaged, and an appearance of the portable electronic device using thehousing 10 is improved. - In this embodiment, the material of the
adhesive layer 144 includes polyolefin chloride. Chlorine atoms of theadhesive layer 144 and metal atoms of theplating layer 142 would form chemical bonds, thereby enhancing the bonding strength of theplating layer 142 and theadhesive layer 144. Polymer chain of theadhesive layer 144 would combine with polymer chain of theouter layer 146, thereby enhancing the bonding strength of theadhesive layer 144 and theouter layer 146. Thus theouter layer 146 is tightly bonded on thehousing 10. In addition, theouter layer 146 includes acrylic resin. Acrylic resin has elasticity, thereby making theouter layer 146 soft and comfortable when touched. - Furthermore, in the process of surface treating the
housing 10, it easy to use various plating material to deposited theplating layer 142 or change the color of the lacquer for forming theouter layer 146. Therefore, the appearance of thehousing 10 may meet different needs of the portable electronic device. In addition, if theplating layer 142 is deposited by the non-conductive vacuum metallization method, theplating layer 142 is electrically insulative. Thus theplating layer 142 would not interfere with electromagnetic waves or electrostatic discharge. - Referring to
FIG. 2 , ahousing 20 according to a second embodiment is shown. Thehousing 20 includes amain body 22 and a plurality ofcoatings 24 formed on themain body 22. Thecoatings 24 include a plating layer 242, anadhesive layer 244, and anouter layer 246. Thehousing 20 is similar in principle to thehousing 10, however, thecoatings 24 further includes a bottom layer 241. The bottom layer 241 is formed on themain body 22, and connects to the plating layer 242. A thickness of the bottom layer 241 is preferably in a range from about 1 micron to about 30 microns. A surface treating method for making thehousing 20 includes the following steps: first, coating a primer on a main body, then leveling and solidifying the primer, thereby forming the bottom layer 241; second, forming the plating layer 242 on the bottom layer 241; third, coating an adhesive on the plating layer 242 to form anadhesive layer 244; finally, coating a lacquer on theadhesive layer 244 to form theouter layer 246. The primer may include acrylic resin. The process of solidifying the primer can be done by performing a thermal curing method or a light curing method. It should be understood that, with the help of the bottom layer 241, an appearance of thehousing 20 can be improved, even if a surface of themain body 22 that connects to the bottom layer 241 is zigzag. - It is noted that the scope of the present housing and surface treating method is not limited to the embodiments described above. In alternative embodiments, the portable electronic device can be a personal digital assistant, a MP3 player, or a MP4 player. The housings can also be utilized in some devices other than the portable electronic devices, such as a table computer. In addition, the surface treating method may be used for a workpiece other than the housing.
- It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the invention.
Claims (6)
1. A surface treating method for making a housing having a main body, comprising:
forming a plating layer on the main body;
coating an adhesive on the plating layer to form an adhesive layer; and
coating a lacquer on the adhesive layer to form an outer layer.
2. The surface treating method as claimed in claim 1 , wherein the adhesive comprises polyolefin chloride.
3. The surface treating method as claimed in claim 1 , wherein the step of forming a plating layer is done by performing a physical vapor deposition method, a non-conductive vacuum metallization method or a chemical vapor deposition method.
4. A surface treating method for making a housing have a main body comprising:
coating a primer on the main body to form a bottom layer;
forming a plating layer on the bottom layer;
coating an adhesive on the plating layer to form an adhesive layer; and
coating a lacquer on the adhesive layer to form an outer layer.
5. The surface treating method as claimed in claim 4 , wherein the adhesive comprises polyolefin chloride.
6. The surface treating method as claimed in claim 4 , wherein the step of depositing a plating layer is done by performing a physical vapor deposition method, a non-conductive vacuum metallization method or a chemical vapor deposition method.
Priority Applications (1)
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US13/041,542 US20110151120A1 (en) | 2007-10-25 | 2011-03-07 | Surface treating method for making the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200710202270.0A CN101417863B (en) | 2007-10-25 | 2007-10-25 | Housing and surface treatment method |
CN200710202270.0 | 2007-10-25 | ||
US11/966,969 US7923086B2 (en) | 2007-10-25 | 2007-12-28 | Housing and surface treating method for making the same |
US13/041,542 US20110151120A1 (en) | 2007-10-25 | 2011-03-07 | Surface treating method for making the same |
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US11/966,969 Division US7923086B2 (en) | 2007-10-25 | 2007-12-28 | Housing and surface treating method for making the same |
Publications (1)
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US20110151120A1 true US20110151120A1 (en) | 2011-06-23 |
Family
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Family Applications (2)
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US11/966,969 Expired - Fee Related US7923086B2 (en) | 2007-10-25 | 2007-12-28 | Housing and surface treating method for making the same |
US13/041,542 Abandoned US20110151120A1 (en) | 2007-10-25 | 2011-03-07 | Surface treating method for making the same |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US11/966,969 Expired - Fee Related US7923086B2 (en) | 2007-10-25 | 2007-12-28 | Housing and surface treating method for making the same |
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US (2) | US7923086B2 (en) |
CN (1) | CN101417863B (en) |
Cited By (4)
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US20100098890A1 (en) * | 2008-10-17 | 2010-04-22 | Shenzhen Futaihong Precision Industry Co., Ltd. | Device housing and method for making the same |
US20100151168A1 (en) * | 2008-12-12 | 2010-06-17 | Shenzhen Futaihong Precision Industry Co., Ltd. | Housing and method for manufacturing the same |
US20110014405A1 (en) * | 2009-07-14 | 2011-01-20 | Shenzhen Futaihong Precision Industry Co., Ltd. | Housing and method for making the housing |
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CN103879033A (en) * | 2014-04-16 | 2014-06-25 | 昆山市耐光包装材料有限公司 | High-strength plastic packaging box |
Also Published As
Publication number | Publication date |
---|---|
CN101417863A (en) | 2009-04-29 |
US20090110852A1 (en) | 2009-04-30 |
US7923086B2 (en) | 2011-04-12 |
CN101417863B (en) | 2011-08-24 |
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