TAISEI PLAS CO., LTD. Patent applications |
Patent application number | Title | Published |
20150369545 | HEAT EXCHANGER AND METHOD FOR MANUFACTURING SAME - A heat exchanger and a method for manufacturing same are provided. The heat exchanger has outer surfaces positioned on the side toward the electronic component that is the object of heat exchange, and resin-coated inner surfaces. A thin metal plate having a predetermined thickness is press-worked to a predetermined shape and a first molded body and a second molded body are formed. The two shaped molded bodies are combined so that the inner surface sides face each other, and the inner surface at the edge portion and the inner surface at the edge parts portion are thermally fused by hot press-working. The edge portions are subjected to ultrafine processing and then inserted into a die, and a thermoplastic resin composition is injected into the cavity of the die and a joining member is molded. | 12-24-2015 |
20150336355 | ALUMINUM ALLOY COMPOSITE AND METHOD FOR JOINING THEREOF - The object of the present invention is to strongly join an aluminum alloy part with an FRP prepreg. An object obtained by subjecting an aluminum alloy to a suitable liquid treatment so as to form a surface having large, micron-order irregularities and also fine irregularities with a period of several tens of nanometers, eliminating the presence of sodium ions from the surface and additionally forming a surface film of aluminum oxide, which is thicker than a natural oxide layer, has been found to have a powerful adhesive strength with epoxy-based adhesives. By simultaneously curing an FRP prepreg which uses the same epoxy-based adhesive in the matrix, an integral composite or structure in which FRP and aluminum alloy have been united at a joining strength of unprecedented magnitude is produced. | 11-26-2015 |
20150108088 | METHOD FOR PREPARING A COMPOSITE OF METAL AND RESIN - It is an object of the present invention to securely and integrally join a metal and a resin, more particularly, a shaped titanium alloy substrate and a resin composition. A titanium alloy substrate is used that has undergone surface roughening by chemical etching or the like so as to have a ultrafine textured face in which bent, ridge-like protrusions having a width and height of from ten to a few hundred nanometers and a length of from a few to a few hundred microns rise up on the surface at a spacing period of from ten to a few hundred nanometers. A titanium alloy piece | 04-23-2015 |
20140305903 | METHOD FOR MANUFACTURING A BONDED BODY OF GALVANIZED STEEL SHEET AND ADHEREND - There is provided a technique to strongly integrate a galvanized steel sheet and a resin molded article. A hot-dip galvanized steel sheet is immersed in an aqueous solution for aluminum degreasing to form a specific roughness on the surface. The surface is covered with convex protrusions having a diameter of about 100 nm, and a chromate treatment layer appears in the surface. A resin composition comprising 70 to 97 wt % of polyphenylene sulfide and 3 to 30 wt % of a polyolefin resin is injected onto the surface. The resin composition penetrates into ultra-fine irregularities and is cured in that state, and thereby a composite in which the galvanized steel sheet and the resin molded article are strongly integrated can be obtained. The shear rupture strength of the composite is extremely high. | 10-16-2014 |
20140217064 | COMPOSITE OF METAL AND RESIN AND METHOD FOR MANUFACTURING THE SAME - It is an object to manufacture a composite of a metal part and a resin composition part, which is improved so as to securely join and integrate stainless steel and a resin. A stainless steel part whose surface has been suitably roughened by chemical etching or the like can be used. An integrated product is obtained by inserting a stainless steel piece | 08-07-2014 |
20140202983 | COPPER ALLOY COMPOSITE AND METHOD FOR MANUFACTURING SAME - A method for preparing a copper alloy given a certain special surface shape yields tremendous bonding strength through compatibility with an epoxy resin adhesive. With a composite part in which this technology is utilized to integrate a copper alloy member as a cover material with a CFRP, it is possible to take advantage of the characteristics of both the copper alloy and the FRP due to the tremendous bonding strength. In a step in which an FRP prepreg is put into a mold and heated and cured, usually the mold is first coated with a release agent to facilitate release from the mold, but with high-technology CFRP, bleeding of the release agent often diminishes the properties. A copper alloy sheet | 07-24-2014 |
20140186641 | COMPOSITE OF METAL AND RESIN AND METHOD FOR MANUFACTURING SAME - A magnesium alloy part is inserted into a mold, a resin composition is injected and joined to the part, and a composite is obtained. A part having, formed thereon, a surface layer of a metal oxide, a metal carbonate, or a metal phosphate in use of a usual conversion treatment or a modification method thereof can be used for the magnesium alloy plate | 07-03-2014 |
20140065472 | METAL-RESIN COMPLEX AND PROCESS FOR PRODUCTION THEREOF - A metal-resin composite having high gas sealing properties is provided. An aluminum alloy structure having a shape surrounding the copper | 03-06-2014 |
20130256261 | ALUMINUM ALLOY COMPOSITE AND METHOD FOR JOINING THEREOF - The object of the present invention is to strongly join an aluminum alloy part with an FRP prepreg. An object obtained by subjecting an aluminum alloy to a suitable liquid treatment so as to form a surface having large, micron-order irregularities and also fine irregularities with a period of several tens of nanometers, eliminating the presence of sodium ions from the surface and additionally forming a surface film of aluminum oxide, which is thicker than a natural oxide layer, has been found to have a powerful adhesive strength with epoxy-based adhesives. By simultaneously curing an FRP prepreg which uses the same epoxy-based adhesive in the matrix, an integral composite or structure in which FRP and aluminum alloy have been united at a joining strength of unprecedented magnitude is produced. | 10-03-2013 |
20130004790 | Composite of Steel and Resin and Method for Manufacturing Same - In the composite, an aluminum-plated steel sheet and a resin are securely and integrally joined together. Through chemical etching, the aluminum-plated steel sheet is caused to have a surface configuration, in which three-dimensional protrusions having shapes with a minor diameter of at least 0.3 μm and a major diameter of at least 3 μm are scattered over a plain part and a portion covered with shallow fine recesses with a diameter of 20 to 50 nm in a state of being distributed adjacent to each other on the plain part accounts for 30 to 50% of the surface area of the plain part. The surface of the three-dimensional protrusions is mainly ceramic containing silicon and the plain part is mainly ceramic containing aluminum. The resin is joined through injection molding with the aluminum-plated steel sheet having been inserted into a metallic mold. | 01-03-2013 |
20110008644 | BONDED BODY OF GALVANIZED STEEL SHEET AND ADHEREND, AND MANUFACTURING METHOD THEREOF - The invention is a technique for strongly integrating a galvanized steel sheet and a resin molded article. A hot-dip galvanized steel sheet “Z18” is immersed in an aqueous solution for aluminum degreasing at 75° C. for 7 minutes, to form roughness having an RSm of 0.8 to 2.3 μm and an Rz of 0.3 to 1.0 μm on the surface. The surface is covered with convex protrusions having a diameter of about 100 nm, and a chromate treatment layer appears in the surface. In other words, three conditions suitable for bonding are satisfied thereby. A resin composition comprising 70 to 97 wt % of polyphenylene sulfide and 3 to 30 wt % of a polyolefin resin is injected onto the surface. The resin composition penetrates into ultra-fine irregularities and is cured in that state, whereby a composite in which the galvanized steel sheet and the resin molded article are strongly integrated is obtained. The shear rupture strength of the composite is extremely high, in excess of 20 MPa. | 01-13-2011 |
20100316878 | METAL AND RESIN COMPOSITE AND METHOD FOR MANUFACTURING SAME - An object of the present invention is to obtain a composite in which a copper or copper alloy is securely integrated with and joined to PBT or PPS. A copper product that has been suitably roughened by chemical etching and also blackened can be used favorably. A surface-treated copper piece | 12-16-2010 |
20100304121 | POROUS STRUCTURE FOR VENTILATION STOPPER - The present invention provides an air-permeable porous structural body that can be used for a vent plug or the like and imposes a low environmental load in waste treatment or the like after use, and also provides a vent plug using the porous structural body. Further, the invention provides an air-permeable porous structural body that can be molded by injection molding that has high productivity. The porous structural body has an overall structure entirely occupied by a structure composed of an infinite number of spherical or ellipsoidal cavities having a diameter of 1 μm to 100 μm. Holes are open in cavity walls and the cavity is linked to another cavity by the holes. The inside of the porous structural body is constituted by communicating open passages that pass in a meandering fashion between the inlet and outlet of the porous structural body and are composed of a plurality of cavities that are joined with each other in a chain configuration, and chain closed passages that are composed of one cavity or a plurality of cavities and connected to the communicating open passages. Further, 50 to 60% of the cavities per unit cube are cavities having a diameter of less than 10 μm. | 12-02-2010 |
20100304083 | COMPOSITE OF METAL AND RESIN AND METHOD FOR MANUFACTURING THE SAME - It is an object of the present invention to securely and integrally join a metal and a resin, more particularly, a shaped titanium alloy substrate and a resin composition. A titanium alloy substrate is used that has undergone surface roughening by chemical etching or the like so as to have a ultrafine textured face in which bent, ridge-like protrusions having a width and height of from ten to a few hundred nanometers and a length of from a few to a few hundred microns rise up on the surface at a spacing period of from ten to a few hundred nanometers. A titanium alloy piece | 12-02-2010 |
20100279120 | COMPOSITE OF STEEL AND RESIN AND METHOD FOR MANUFACTURING SAME - Disclosed is a composite in which an aluminum-plated steel sheet and a resin are securely and integrally joined together, as well as a corrosion resistant steel sheet. Through chemical etching the aluminum-plated steel sheet is caused to have a surface configuration, in which three-dimensional protrusions having pebble-like shapes with a diameter of at least about 0.3 μm or having irregular shapes with a minor diameter of at least 0.3 μm and a major diameter of at least several microns are scattered over a plain-like part, where 30 to 50% of the surface area of the plain-like part is accounted for by a portion covered with shallow recesses having a diameter of 20 to 50 nm in a state of being distributed adjacent to each other. The surface of the three-dimensional protrusions is mainly ceramic containing silicon and the flat part is mainly a ceramic containing aluminum. The steel is heated and welded under pressure to a resin composition, injection joining is performed or adhesion joining with another adherend is performed with a resin-based adhesive. Coating with a corrosion resistant material can also be performed. | 11-04-2010 |
20100189958 | METAL AND RESIN COMPOSITE AND MANUFACTURING METHOD THEREOF - A metal and resin composite in which a metal and a resin, especially a shaped base made of an ordinary steel material and a resin composition can be strongly joined to and integrated with each other; and a method for producing the composite. | 07-29-2010 |
20100189957 | STEEL MATERIAL COMPOSITE AND MANUFACTURING METHOD THEREOF - The present invention provides an excellent structural material for movable equipment, structural members for building materials, electronic and electrical equipment and the like by bonding an ordinary steel material and an FRP prepreg strongly to each other to facilitate mechanical joining and disassembly using bolts and nuts or the like. | 07-29-2010 |
20100162558 | OUTER CASING OF NON-AQUEOUS ELECTROLYTE BATTERY AND PRODUCTION METHOD THEREFOR - An outer casing of a non-aqueous electrolyte battery is capable of being mass-produced as well as thin and resistant to damage. The outer casing | 07-01-2010 |
20100159196 | COPPER ALLOY COMPOSITE AND METHOD FOR MANUFACTURING SAME - An integrated product whose joint strength between a copper alloy and a carbon fiber prepreg is extremely high. A copper alloy given a certain special surface shape yields tremendous bonding strength through compatibility with an epoxy resin adhesive. With a composite part in which this technology is utilized to integrate a copper alloy member as a cover material with a CFRP, it is possible to take advantage of the characteristics of both the copper alloy and the FRP due to the tremendous bonding strength. In a step in which an FRP prepreg is put into a mold and heated and cured, usually the mold is first coated with a release agent to facilitate release from the mold, but with high-technology CFRP, bleeding of the release agent often diminishes the properties. A copper alloy sheet | 06-24-2010 |
20100151200 | TITANIUM ALLOY COMPOSITE AND BONDING METHOD THEREOF - An object of the present invention is to create, from a titanium alloy and an FRP prepreg, a composite of a titanium alloy and an FRP material that is suitable for bolt fastening. The composite can bring out excellent characteristics in CFRP members in mobile electronic-electric devices, mobile equipment, medical instruments, marine devices and the like. It has been found that titanium alloy having a special constant surface shape adheres strongly with an epoxy adhesive. In a composite obtained using this technique to integrate a titanium alloy member as a cover material and a CFRP material, the metal alloy portion deforms and disperses locally strong forces so that the CFRP material is not damaged, even when the composite is assembled to another metal member through bolt-fastening. As a result, the composite is expected to be effective for applications in mobile equipment or mobile device casings, where lightweightness, corrosion resistance, toughness and ease of assembly are required. | 06-17-2010 |
20100119836 | STAINLESS STEEL COMPOSITE AND MANUFACTURING METHOD THEREOF - A CFRP-integrated stainless steel complex used for a hydrogen containing tank, a food processing machine, a medical device, a general-purpose machine, and other machines can be designed as a further rational design product with a smaller weight. It has been found that a stainless steel material ( | 05-13-2010 |
20100112287 | MAGNESIUM ALLOY COMPOSITE AND METHOD FOR MANUFACTURING SAME - An object of the present invention is to manufacture a lightweight and strong composite of a magnesium alloy and a CFRP, by strongly bonding the magnesium alloy and the CFRP using an epoxy adhesive. The magnesium alloy having specific ultra-fine irregularities is compatible with an epoxy resin adhesive and exhibits thus strong adhesion. A magnesium alloy composite plate material | 05-06-2010 |
20100098910 | ALUMINUM ALLOY COMPOSITE AND METHOD FOR JOINING THEREOF - The object of the present invention is to strongly join an aluminum alloy part with an FRP prepreg. An object obtained by subjecting an aluminum alloy to a suitable liquid treatment so as to form a surface having large, micron-order irregularities and also fine irregularities with a period of several tens of nanometers, eliminating the presence of sodium ions from the surface and additionally forming a surface film of aluminum oxide, which is thicker than a natural oxide layer, has been found to have a powerful adhesive strength with epoxy-based adhesives. By simultaneously curing an FRP prepreg which uses the same epoxy-based adhesive in the matrix, an integral composite or structure in which FRP and aluminum alloy have been united at a joining strength of unprecedented magnitude is produced. | 04-22-2010 |
20100045888 | OPTICAL SHEET RETAINING TOOL AND CHASSIS FOR LIQUID CRYSTAL DISPLAY DEVICE - An optical sheet retaining tool for a liquid crystal display device is provided, the tool being of a simple structure and low in cost, and operations for assembling and disassembling the display device can be performed easily. | 02-25-2010 |
20100028602 | COMPOSITE OF METAL AND RESIN AND METHOD FOR MANUFACTURING THE SAME - It is an object to manufacture a composite of a metal part and a resin composition part, which is improved so as to securely join and integrate stainless steel and a resin. A stainless steel part whose surface has been suitably roughened by chemical etching or the like can be used. An integrated product is obtained by inserting a stainless steel piece | 02-04-2010 |
20100018025 | METHOD FOR MANUFACTURING COMPOSITE WITH HIGH CORROSION RESISTANCE - A composite of a magnesium part or a magnesium alloy part and a resin composition, improved to have high corrosion resistance, is manufactured by: a step of shaping a magnesium alloy part | 01-28-2010 |
20090280296 | COMPOSITE OF METAL AND RESIN AND METHOD FOR MANUFACTURING SAME - [Problem] A composite of a metal part and a resin composition part that is improved so that the metal and resin are integrally joined to have strong bonding properties, and a method for manufacturing the composite. | 11-12-2009 |
20090274889 | COMPOSITE OF ALUMINUM ALLOY AND RESIN AND MANUFACTURING METHOD THEREOF - Combining good metal chassis and good synthetic resin structures, achieving mass production with high productivity, and enabling free design of shapes and structures, are all important considerations in electronic devices, household electric appliances and the like. Moreover, the need for components that are useful in reducing the weight and increasing the strength of various parts and structures is not restricted to electronic devices and household electric appliances. The surface of an aluminum alloy shaped product is covered with ultrafine recesses by being dipped in an eroding aqueous solution, or has formed thereon a metal oxide layer covered with the openings of ultrafine pores by anodizing. On the resin side, there is prepared a polyamide resin compounded with an impact resistance modifier, a mixture of an aliphatic polyamide and an aromatic polyamide, or a mixture of aromatic polyamides. The aluminum alloy shaped product is inserted into an injection mold, and a polyamide-type resin composition is injected onto the surface of the aluminum alloy shaped product, to manufacture an integrated composite. | 11-05-2009 |
20090117401 | COMPOSITE OF METAL AND RESIN, AND METHOD FOR MANUFACTURING SAME - A composite of a metal and a resin, in which a shaped metal and a shaped thermoplastic resin are integrally joined by injection molding, and in which the perpendicular precision of the thermoplastic shaped body with respect to the shaped metal is improved, as well as a method for manufacturing the composite. A composite | 05-07-2009 |