Abstract:
A resin composition for metal plating provides a molded article exhibiting excellent metal plating adhesion strength and chemical resistance, while having excellent productivity. A metal-plated molded article can also be made from such a resin composition. The resin composition for metal plating includes 50-90% by mass of Component (A) and 10-50% by mass of Component (B), the total of Component (A) and Component (B) being 100% by mass, wherein Component (A) is a polypropylene resin, and Component (B) is a rubber-reinforced vinyl resin obtained by polymerizing a vinyl monomer in the presence of a rubber-like polymer, or a mixture of the rubber-reinforced vinyl resin and a (co)polymer of the vinyl monomer. The composition may further include 0.5-30 parts by mass of a compatibilizer (C) per 100 parts by mass of the total of Component (A) and Component (B). Component (B) is preferably a non-diene rubber-reinforced resin.
Abstract:
The present invention relates to a thermoplastic resin composition with excellent long-term heat-aging properties, comprising: (I) 10 to 45% by weight of a rubber-modified thermoplastic resin obtained by graft polymerizing at least one monomer selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds and other vinyl monomers copolymerizable therewith in the presence of a rubber-like polymer; (II) 5 to 30% by weight of a thermoplastic resin obtained by copolymerizing the monomers comprising an aromatic vinyl compound, a vinyl cyanide compound and optionally other vinyl monomer copolymerizable therewith; and (III) 50 to 70% by weight of a polycarbonate resin, the content of the vinyl cyanide compound in the whole produced composition being 3 to 12% by weight.
Abstract:
A thermoplastic resin containing a graft copolymer obtained by graft-copolymerizing at least one vinyl monomer onto colloidal silica-core silicone-shell particles, and a process for producing the thermoplastic resin.A colloidal silica-core silicone-shell particles comprising(A) from 99.9 to 5% by weight of cores which are colloidal silica particles, and(B) from 0.1 to 95% by weight of shells comprising an organosiloxy group represented by the formula ##STR1## wherein R.sup.1 which may be the same or different each represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms, Q represents hydrogen atom or an alkyl group having 1 to 6 carbon atoms, p is an integer of 1 to 3, and q is an integer of 0 to 2, with proviso that (p+q) is an integer of 1 to 3, and/or a polyorganosiloxane represented by the average composition formula ##EQU1## wherein R.sup.2 which may be the same or different each represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms and a is a number of 0.8 to 3.0, wherein 0.02 to 100 mole % of the sum of R.sup.1 and R.sup.2 are groups containing a reactive unsaturated group.
Abstract:
A precision press device and a press load control method is provided for downsizing a vacuum chamber in press work in the vacuum chamber, shortening a time required to reach a vacuum and performing high accuracy pressure control. A pressure sensor is set up outside the chamber 16 and a cylinder chamber 17 is formed to allow a tubular plunger 7 to slide up and down. A negative pressure 22 in the chamber 16 attracts the pressurized section 2 and the pressurizing section 1, but by injecting an equivalent pressure 19 of a fluid into the cylinder chamber 17, pushing out the tubular plunger 7, the attractive forces are canceled out.
Abstract:
The present invention provides a precision press device and a press load control method thereof for downsizing a vacuum chamber in press work in the vacuum chamber, shortening a time required to reach a vacuum and further performing high accuracy pressure control. To downsize a chamber 16, a pressure sensor is set up outside the chamber 16 and a cylinder chamber 17 is formed to allow a tubular plunger 7 to slide up and down using the tubular shape of the chamber 16. A negative pressure 22 in the chamber 16 attracts the pressurized section 2 and the pressurizing section 1 to each other, but by injecting an equivalent pressure 19 of a fluid into the cylinder chamber 17, pushing out the tubular plunger 7, the attractive forces are canceled out. It is possible to control the load on the substrate or the like transferred by the press stage with high accuracy.
Abstract:
A technology for manufacturing a transformer core with laminated structure draws the magnetic sheet materials in parallel from plural winding bodies around which the magnetic sheet material is wound like hoop, cuts the materials at predetermined positions substantially simultaneously to form plural magnetic sheet materials each with a different length, forms a block-shaped laminate by laminating the plural magnetic sheet materials in the order of length, and further laminates the block-shaped laminates in the order of length. The resultant laminate formed by laminating the plural block-shaped laminates are formed into an annular structure so that the longer block-shaped laminate is wound on the outer circumference of the winding core and the shorter block-shaped laminate is wound on the inner circumference, and abutting and overlapping both ends of the respective magnetic sheet materials so that the abutting or the overlapped portions are located at circumferentially different positions between the adjoining layers of the magnetic materials.
Abstract:
A novel nonvolatile memory element, which can be manufactured by a simple and high yield process by using an organic material and has a high on/off ratio, and a method for manufacturing such nonvolatile memory element. A switching layer (14) made of an electrical insulating radical polymer is provided between an anode layer (12) and a cathode layer (16). Further, a hole injection transport layer (13) is provided between the switching layer (14) and the anode layer (12), and an electron injection transport layer (15), between the switching layer (14) and the cathode layer (16). An intermediate layer is provided between the switching layer and the adjacent layer. The radical polymer is preferably nitroxide radical polymer. The switching layer (14), the hole injection transport layer (13) and the electron injection transport layer (15) are formed by being stacked by a wet process.
Abstract:
Rubber-reinforced thermoplastic resins containing a copolymer resin (A1) obtained by polymerizing a vinyl monomer (b1) in the presence of an acrylic rubber-like polymer (a), or a mixture of copolymer resin (A1) and a (co)polymer (A2) of a vinyl monomer (b2).Acrylic rubber-like polymer (a) contains 50 to 98% by weight of acrylic rubber-like polymer particles (a1) which have a particle size of less than 350 nm and 2 to 50% by weight of acrylic rubber-like polymer particles (a2) which have a particle size of not less than 350 nm.The amount of the acrylic rubber-like polymer (a) is 5 to 80% by weight based on the rubber-reinforced thermoplastic resin.
Abstract:
A transformer core manufacturing apparatus for manufacturing an annular transformer core having thin plates formed of magnetic materials laminated includes an uncoiler unit which allows a plurality of uncoilers each having a thin plate magnetic material coiled hoop-like to uncoil the magnetic material, a carrier unit for guiding a plurality of the magnetic materials uncoiled from the plurality of the uncoilers as a single group of magnetic body, a first alignment unit for aligning the carried group of the single magnetic body in a width direction, a cut-off unit for cutting the magnetic body aligned by the first alignment unit in a predetermined dimension, a laminating unit for laminating a plurality of the groups of the magnetic body cut by the cut-off unit, a second alignment unit for aligning the magnetic body laminated on the laminating unit, and a control unit for controlling operations of the above cited units.