The present invention relates to a PEMFC durability enhancer, a PEMFC composite electrolyte membrane manufactured using same, and a membrane electrode assembly, and, to: a PEMFC composite electrolyte membrane having a PEMFC electrolyte membrane durability that decreases through chemical degradation if an electrolyte membrane is thinned, but a durability enhancer of the present invention inhibits chemical degradation of the electrolyte membrane so that electrolyte membrane durability deterioration caused by chemical degradation is prevented, and having high dimensional stability, mechanical properties and electrical stability; and a membrane electrode assembly.
The present invention relates to a low dielectric composite film for a copper clad laminate (CCL), and more specifically to a low dielectric composite film for a copper clad laminate (CCL) and a low dielectric copper clad laminate comprising same, having the benefits of having significantly low dielectric permittivity and dielectric loss, and having a significantly low coefficient of expansion whilst also having excellent mechanical properties.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/28 - Layered products essentially comprising synthetic resin comprising copolymers of synthetic resins not wholly covered by any one of the following subgroups
B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
C08J 9/42 - Impregnation with macromolecular compounds
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
Disclosed is a vent cap device capable of maintaining thermal equilibrium between the inside and outside of an apparatus and preventing foreign matter from infiltrating into the apparatus. The vent cap device according to the present invention is installed in a vent hole, which is formed through a housing and allows the inside and outside of the housing to communicate with each other therethrough, in the state where components are received in the housing, so as to prevent foreign matter from infiltrating into the housing while allowing the housing to be ventilated therethrough. The vent cap device comprises: a body fitted and fixed into the vent hole through which the inside and outside of the housing communicate with each other, and having a center hole which is formed at the center thereof so as to allow the inside and outside of the housing to communicate with each other therethrough; a cap which is coupled to the body by being assembled to the body from the outside of the body, and after being assembled, is fixed in the state where the assembled cap is spaced apart from the body so as to form a space through which air passed through the center hole is vented to the outside of the housing through the side surface of the cap; and a membrane which is fixedly installed to cover the center hole of the body, so as to prevent the infiltration of foreign matter through the center hole while allowing the ventilation of air through the center hole.
A space adjustment cassette, according to one embodiment of the present invention, comprises: a frame; a mounting part comprising at least one from among a pair of first and second width adjustment cassettes and a pair of first and second thickness adjustment cassettes installed inside the frame and supporting a battery; and a space adjustment part, connected to the mounting part, for moving at least one from among the pair of width adjustment cassettes and the pair of thickness adjustment cassettes according to the size of the battery.
A filter syringe according to the present invention comprises: a cylinder having a coupling tube such that a syringe needle is coupled thereto; a filter part comprising a first path which is installed inside the cylinder and in which an injectable solution is introduced into the cylinder through the syringe needle, and a second path which is formed in the center of the first path and in which the injectable solution is discharged from the cylinder to the outside; and a piston which has, on the front side thereof, a coupling shaft member couplable to the filter part, and which moves forward or backward while a part thereof is inserted into the cylinder so as to introduce the injectable solution into the cylinder or discharge the injectable solution to the outside of the cylinder. The filter part comprises: a check valve which is connected to the syringe needle, introduces the injectable solution through the first path, and blocks the first path so as to discharge the injectable solution through the second path; a filter member which is installed on the second path so as to filter the injectable solution discharged through the second path; and a filter body which has, on one side thereof, an accommodation groove for accommodating the filter member therein so as to bring the filter member accommodated in the accommodation groove into close contact with the check valve.
The present invention relates to a fuel cell electrolyte reinforced membrane, a membrane-electrode assembly comprising same and a fuel cell, and more specifically, to an invention that may provide a fuel cell material and a fuel cell exhibiting improved performance by providing a fuel cell electrolyte reinforced membrane comprising, from the cross-sectional view of the electrolyte reinforced membrane, a first electrolyte layer formed on one lateral surface of a porous support; and a second electrolyte layer formed on the other lateral surface. By introducing the porous support exhibiting improved mechanical properties by being manufactured under particular conditions such as draw ratio and drawing speed, the mechanical properties of the electrolyte reinforced membrane may be greatly improved, and the difference in mechanical properties between a first axial direction (length direction) and a second axial direction (thickness direction) may be minimized.
H01M 8/1053 - Polymer electrolyte composites, mixtures or blends consisting of layers of polymers with at least one layer being ionically conductive
H01M 8/1062 - Polymeric electrolyte materials characterised by a porous support having no ion-conducting properties characterised by the physical properties of the porous support, e.g. its porosity or thickness
H01M 8/1067 - Polymeric electrolyte materials characterised by their physical properties, e.g. porosity, ionic conductivity or thickness
H01M 8/1069 - Polymeric electrolyte materials characterised by the manufacturing processes
H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
B29C 55/12 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets multiaxial biaxial
H01M 8/1011 - Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
The present invention relates to a radical scavenger and a preparation method therefor and, more specifically, to: a novel radical scavenger for preventing the deterioration of a fuel cell electrolyte membrane by removing radicals to be generated during the operation of a polymer electrolyte membrane fuel cell; and a method for efficiently preparing the same.
The present invention relates to: a porous support for a fuel cell electrolyte membrane; a fuel cell electrolyte membrane comprising the same; a membrane-electrode assembly comprising the same; and a fuel cell, and can provide a fuel cell material and a fuel cell, which have improved performance, by providing a porous support for a fuel cell electrolyte membrane, having improved mechanical properties and the like even if the elongation is increased, when compared with a conventional porous support used for a conventional electrolyte membrane.
H01M 8/1062 - Polymeric electrolyte materials characterised by a porous support having no ion-conducting properties characterised by the physical properties of the porous support, e.g. its porosity or thickness
H01M 8/1053 - Polymer electrolyte composites, mixtures or blends consisting of layers of polymers with at least one layer being ionically conductive
H01M 8/1004 - Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
H01M 8/1069 - Polymeric electrolyte materials characterised by the manufacturing processes
The present invention relates to an electrolyte membrane, and more specifically, to a composite electrolyte membrane for a fuel cell, a membrane-electrode assembly comprising same, a fuel cell comprising same, and a method for manufacturing composite electrolyte membrane for a fuel cell, a membrane-electrode assembly comprising same, and a fuel cell comprising same, wherein the composite electrolyte membrane for a fuel cell is capable of resolving the issue of hydrogen crossover and has excellent tensile strength and high elongation at break.
COMPOSITE ELECTROLYTE MEMBRANE HAVING ASYMMETRIC DENSITY GRADIENT FOR FUEL CELL, METHOD FOR MANUFACTURING SAME, MEMBRANE-ELECTRODE ASSEMBLY COMPRISING COMPOSITE ELECTROLYTE MEMBRANE HAVING ASYMMETRIC DENSITY GRADIENT FOR FUEL CELL, AND FUEL CELL COMPRISING SAME
The present invention relates to a composite electrolyte membrane for a fuel cell, a method for manufacturing same, a membrane-electrode assembly comprising a composite electrolyte membrane, and a fuel cell. In particular, the present invention relates to the composite electrolyte membrane for a fuel cell, the membrane-electrode assembly comprising same, and the fuel cell employing same has excellent performance, wherein the composite electrolyte membrane according to the present invention according to the present invention, is an electrolyte membrane having a different density gradient in the upper portion and the lower portion, and of which the rate of hydrogen gas penetration and impregnation of ionomers can be controlled.
A composite electrolyte membrane for a fuel cell, and a membrane-electrode assembly and a fuel cell comprising same, according to the present invention, use an electrolyte membrane impregnated with a fluoride-based ionomer solution containing a PTFE porous support which comprises pores having a specific aspect ratio and hollow silica, thereby effectively simplifying the structure of the electrolyte membrane and enhancing performance when applied to the fuel cell.
The present invention relates to an electrolyte membrane, and more specifically, to a composite electrolyte membrane for a fuel cell, a membrane-electrode assembly comprising same, a fuel cell comprising same, and a method for manufacturing composite electrolyte membrane for a fuel cell, a membrane-electrode assembly comprising same, and a fuel cell comprising same, wherein the composite electrolyte membrane for a fuel cell has the effects of having excellent impregnation properties as well as improved mechanical physical properties.
A syringe filter structure and a syringe having the same are disclosed. According to the present invention, the syringe filter structure for filtering an injection fluid when the injection fluid, having flowed in through the rear part, is discharged through a syringe needle coupled to the front of a cylinder comprises: a filter part provided between the cylinder and the syringe needle, connected to the syringe needle, and having a first fluid path, into which the injection fluid flows, formed at one side thereof and a second fluid path, through which the injection fluid is discharged from the cylinder, formed at the other side thereof; a cylindrical filter holder having, therein, an accommodating part in which the filter part is accommodated, coupled with the syringe needle at the front of the accommodating part, coupled with the cylinder at the rear of the accommodating part, having, by means of the filter part, a first fluid path formed at one side of the accommodating part, and having a second fluid path formed at the other side of the accommodating part; and a stopper having a first protrusion part, which is formed on the outer surface thereof and inserted into and assembled in a first groove part formed at the cylinder, so as to prevent the filter part and the filter holder from being pushed back toward the rear of the cylinder.
The present invention relates to a transfer belt for an image forming device, comprising: a transfer belt; and an adhesive tape attached to at least one end portion of the transfer belt so as to prevent damage to the transfer belt, wherein the adhesive tape includes reinforced fiber and, more specifically, to a transfer belt for an image forming device, the transfer belt having improved durability since a specific reinforced tape is attached to the transfer belt, and, simultaneously, enabling the spreading of cracks occurring in a connection part of the transfer belt to be prevented.
G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
15.
SYRINGE FILTER STRUCTURE AND SYRINGE INCLUDING SAME
Provided is a syringe filter structure. The syringe filter structure comprises a filter part provided between a cylinder and an injection needle and connected with the injection needle to filter an injection solution, which is introduced through the rear side of the cylinder, when discharging the injection solution through the injection needle coupled to the front side of the cylinder, wherein the filter part has a first fluid passage formed on one side thereof through which the injection solution is introduced and a second fluid passage formed on an opposite side thereof through which the injection solution is discharged from the cylinder, wherein the filter part comprises: a first check valve connected with the cylinder and selectively blocking the first fluid passage to introduce the injection solution into the cylinder through the first fluid passage; a second check valve connected with the injection needle and selectively blocking the second fluid passage to discharge the injection solution from the cylinder through the second fluid passage; a filter member provided in the second fluid passage and filtering the injection solution discharged through the first check valve; and a filter body located between the second check valve and the filter member and coupled with the second check valve on the front side thereof and with the first check valve on the rear side thereof to bring the filter member into close contact with the first check valve.
Provided is a filter structure for a syringe. The filter structure for a syringe comprises a filter unit installed within a cylinder and connected to a needle coupled to the front of the cylinder in order to perform filtering when an injection solution introduced into the cylinder through the rear thereof is discharged through the needle, wherein a second fluid passage is formed outside a first fluid passage so as to prevent the first fluid passage, through which the injection solution is introduced, from overlapping with the second fluid passage through which the injection solution is discharged from the cylinder, and the filter unit comprises: a first check valve that is connected with the needle and blocks the second fluid passage to introduce the injection solution into the cylinder through the first fluid passage; a second check valve that blocks the first fluid passage to discharge the injection solution from the cylinder through the second fluid passage; a filter member installed on the second fluid passage to perform filtering on the injection solution discharged through the second check valve; and a filter body located between the first check valve and the filter member and coupled to the first check valve at the front thereof and to the second check valve at the rear thereof to bring the filter member close to the second check valve.
Disclosed is a filter member for a syringe. The disclosed filter member for a syringe is coupled to a front portion of a cylinder of the syringe, and comprises: a needle holder having a front portion to which a needle is coupled, an open rear portion, and an inside in which a first installation part and a second installation part are continuously formed in an internal rear side thereof; a middle block embedded in the first installation part of the needle holder and having a suction passage hole penetrating in an axial direction to enable an injection to be suctioned to pass through the hole; an end cap having a front portion rotatably inserted to the second installation part, a rear portion opened to be coupled with the cylinder of the syringe, and a front surface with a filter hole and a communication hole selectively communicated to the suction passage hole; and a filter blocking the filter hole of the end cap.
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A61M 5/165 - Filtering accessories, e.g. blood filters, filters for infusion liquids
The present invention relates to a solar wafer cassette. The solar wafer cassette includes: first and second end plates disposed to face each other with a predetermined distance therebetween; and a plurality of support bars fixedly disposed on both ends of the first and second end plates to support side surfaces and bottom surfaces of the plurality of solar wafers received between the first and second end plates. An assembly slot (111) for assembling each of the support bars (130) is formed in an inner surface of at least one end plate of the first and second end plates (110, 120). Also, an access opening (111a) and a guide opening (111b) are formed in the outside and inside of the assembly slot (111), respectively. A hook (111c) is disposed on an inner edge of the guide opening (111b). A stair type assembly block (140) inserted into the assembly slot (111) through the access opening (111a) is disposed on an end corresponding to the assembly slot (111) of each of the support bars (130).
H01L 21/673 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components using specially adapted carriers
B65D 85/38 - Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for delicate optical, measuring, calculating or control apparatus
B65D 85/86 - Containers, packaging elements or packages, specially adapted for particular articles or materials for electrical components
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
19.
ENTRY SHEET FOR PRINTED CIRCUIT BOARD HOLE BORING, WATER-SOLUBLE LUBRICATING RESIN COMPOSITION USED WITH SAME AND PRODUCTION METHOD FOR SAME
The present invention relates to an entry sheet for printed circuit board hole boring, comprising: a metal thin film substrate; and a water-soluble lubricating resin layer formed on the substrate, wherein the water-soluble lubricating resin layer comprises 100 parts by weight of a water-soluble polyester resin, from 0.5 to 3 parts by weight of a vinyl chloride - vinyl acetate copolymer and from 0.5 to 3 parts by weight of a hydrogenated hydrocarbon resin. In entry sheets produced in this way, the uniformity and accuracy of the bored holes is outstanding, the force of binding onto the metal thin film is exceptional, and there is no peeling or crack generation on the surface even at low temperature.
B23B 41/00 - Boring or drilling machines or devices specially adapted for particular workAccessories specially adapted therefor
B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
C09D 133/04 - Homopolymers or copolymers of esters
C09D 131/04 - Homopolymers or copolymers of vinyl acetate
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
H05K 3/00 - Apparatus or processes for manufacturing printed circuits
B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
patents