What is claimed is:
1. A mobile terminal with a main housing and a folder rotatably connected to the main housing by a hinge, comprising:
a first cover surrounding both side surfaces, a lower surface, and an edge of a front surface of the main housing;
a second cover surrounding both side surfaces, an upper surface, and an edge of a front surface of the folder; and
a locking device for attaching and detaching the first cover to and from the main housing.
2. The mobile terminal as set forth in claim 1,
wherein the locking device is attached to and detached from a designated position on the lower surface of the main housing in a vertical direction.
3. The mobile terminal as set forth in claim 1,
wherein the first metal cover includes an antenna opening for accommodating an antenna device.
4. The mobile terminal as set forth in claim 1,
wherein the first and second covers are constructed of metal.
5. A metal cover-locking device for locking a first metal cover onto a main housing of a mobile terminal, in which the mobile terminal includes the main housing and a folder rotatably connected to the main housing by a hinge, and a metal cover includes the first metal cover surrounding the main housing and a second metal cover surrounding the folder, comprising:
a reception area recessed at a designated position of the first metal cover;
a locking area recessed in the main housing so as to receive the reception area;
a movable locker being mounted on the reception area and the locking area, being biased by a spring in a direction away from the reception area, and locking or unlocking the first metal cover onto and from the main housing by a pushing and rotating manipulation by a user; and
at least one opening respectively formed in the reception area and the locking area so as to allow the moveable locker to vertically move and rotate.
6. The metal cover-locking device as set forth in claim 5,
wherein a frame for supporting the movable locker is installed on the reception area.
7. The metal cover-locking device as set forth in claim 5,
wherein the movable locker includes:
two free ends downwardly extended from the movable locker; and
engagement protrusions extended from the free ends in an outer circumferential direction.
8. The metal cover-locking device as set forth in claim 5,
wherein one end of the spring is attached to a ceiling surface of the movable locker, and the other end of the spring is attached to a bottom surface of the reception area.
9. The metal cover-locking device as set forth in claim 5, further comprising:
first and second movable openings formed in a bottom surface of the reception area;
first and second unlocking openings formed at an end of each of the first and second movable openings;
third and fourth movable openings formed in a bottom surface of the locking area; and
third and fourth unlocking openings formed at a center of each of the third and fourth movable openings.
10. The metal cover-locking device as set forth in claim 9,
wherein the first, second, third, and fourth movable openings extend in an outer circumferential direction so as to have a designated length, and wherein the first and second movable openings are coaxially disposed on the third and fourth movable openings, and the first and second unlocking openings are non-coaxially disposed on the third and fourth unlocking openings.
11. The metal cover-locking device as set forth in claim 5,
wherein the reception area and the locking area are cylinder-shaped.
12. A mobile terminal with a main housing and a folder rotably connected to the main housing by a hinge, comprising a first metal cover detachably surrounding both side surfaces, a lower surface, and an edge of a front surface of the main housing: and
a locking device for attaching and detaching the first metal cover to and from the main housing.
13. The mobile terminal as set forth in claim 12, further comprising:
a second metal cover surrounding both side surfaces, an upper surface, and an edge of a front surface of the folder.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A method for the manufacture of an in-press coated composite substrate, comprising:
(a) applying an aqueous coating composition to a surface of a compressible mat comprising fibers, chips or particles and a resin;
(b) compressing the mat and applied coating composition between heated metal surfaces in a press; and
(c) releasing the compressed, coated composite substrate from the press;
characterized in that the aqueous coating composition comprises an aqueous emulsion copolymer and a ground ion exchange resin.
2. The method of claim 1 wherein the fibers, chips, particles and resin used to form the mat are selected from cellulose, glass, synthetic polymers, carbon and organic or inorganic cementitious compositions and combinations thereof.
3. The method of claim 1 wherein the emulsion polymer is selected from (meth)acrylic ester monomers, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, decyl acrylate, lauryl acrylate, methyl methacrylate, butyl methacrylate, isodecyl methacrylate, lauryl methacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, (meth)acrylonitrile, (meth)acrylamide, amino-functional monomers, ureido-functional monomers, monomers bearing acetoacetate-functional groups, styrene, substituted styrenes, butadiene, ethylene, propylene, -olefins, 1-decene, vinyl acetate, vinyl butyrate, vinyl esters, vinyl monomers, vinyl chloride, vinylidene chloride and combinations thereof.
4. The method of claim 1 wherein the ion exchange resin is selected from anion exchange resins, cation exchange resins, mixed bed resins and combinations thereof.
5. The method of claim 1 wherein the ion exchange resin is at least 1.7 percent solid ion exchange resin on coating polymer solids.
6. An aqueous coating composition for in-press molded composite substrates comprising an emulsion polymer and ground ion exchange resin wherein said coated composite substrate exhibits improved mold release properties, color stability and initial whiteness as compared with identical coatings without the ion exchange resin.
7. The composition of claim 6 wherein the emulsion polymer is selected from (meth)acrylic ester monomers, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, decyl acrylate, lauryl acrylate, methyl methacrylate, butyl methacrylate, isodecyl methacrylate, lauryl methacrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, (meth)acrylonitrile, (meth)acrylamide, amino-functional monomers, ureido-functional monomers, monomers bearing acetoacetate-functional groups, styrene, substituted styrenes, butadiene, ethylene, propylene, -olefins, 1-decene, vinyl acetate, vinyl butyrate, vinyl esters, vinyl monomers, vinyl chloride, vinylidene chloride and combinations thereof
8. The composition of claim 6 wherein the ion exchange resin is selected from anion exchange resins, cation exchange resins, mixed bed resins and combinations thereof.
9. The composition of claim 1 wherein the ion exchange resin is at least 1.7 percent solid ion exchange resin on coating polymer solids.
10. The composition of claim 1 wherein the initial whiteness L* value as measured by Gardner Colorimeter using the CIE L*a*b* scale is at least 5% greater than the initial whiteness of an identical coating without the ion exchange resin.