Patent application number | Description | Published |
20090270538 | PARTICULATE WATER-ABSORBENT POLYMER AND PRODUCTION METHOD THEREOF - An object of the present invention is to provide a method for producing a particulate water-absorbent polymer particle having remarkably improved long-term color stability, without an adverse effect (such as a delay in polymerization) on synthesis of the particulate water-absorbent polymer. The method includes the steps of polymerizing a monomer aqueous solution (B) containing (i) at least one type of monomer (A) that is capable of forming a particulate water-absorbent polymer by polymerization, (ii) at least one type of crosslinking agent, (iii) at least one type of polymerization initiator and (iv) an organophosphorus compound in an amount of not less than 1 but not more than 100 ppm by mass with respect to the monomer (A) so as to form a hydrogel polymer, and drying the hydrogel polymer. The method enables to provide an excellent particulate water-absorbent polymer that realizes (i) long-term color stability and improvement in urine tolerance and (ii) absorbing property, which are in such a trade-off relationship. In this way, the above object is attained. | 10-29-2009 |
20090275470 | PARTICULATE WATER ABSORBING AGENT AND MANUFACTURING METHOD OF SAME - The application relates to the particulate water absorbing agent of the present invention composed primarily of a polyacrylic acid- or polyacrylate-based water absorbing resin and containing a chelating agent and a phosphorous compound. Accordingly, the particulate water absorbing agent composed primarily of a water absorbing resin achieves both excellent water absorbing properties and anti-coloring effect which would normally be incompatible. A particulate water absorbing agent for absorbent core is provided that is suitable for actual use. | 11-05-2009 |
20100009846 | PARTICLE-SHAPED WATER ABSORBING AGENT AND METHOD FOR PRODUCING THE SAME - An object of the present invention is to provide a particle-shaped water absorbing agent having a remarkably improved surface color and excellent water-absorbing properties (better water absorption capacity, and lower water soluble content and residual monomer content) at the same time. In order to attain the object, a particle-shaped water absorbing agent according to the present invention is a particle-shaped water absorbing agent whose main component is a polyacrylic acid and/or a salt thereof, the particle-shaped water absorbing agent having a surface color of Hunter b value in a range of −5 to 10, and having a cross-linking absorption property index (CPI) in a range of 1 to 100, the CPI defined by the following two equations: | 01-14-2010 |
20110046279 | PARTICULATE WATER-ABSORBENT POLYMER AND PRODUCTION METHOD THEREOF - An object of the present invention is to provide a method for producing a particulate water-absorbent polymer particle having remarkably improved long-term color stability, without an adverse effect (such as a delay in polymerization) on synthesis of the particulate water-absorbent polymer. The method includes the steps of polymerizing a monomer aqueous solution (B) containing (i) at least one type of monomer (A) that is capable of forming a particulate water-absorbent polymer by polymerization, (ii) at least one type of crosslinking agent, (iii) at least one type of polymerization initiator and (iv) an organophosphorus compound in an amount of not less than 1 but not more than 100 ppm by mass with respect to the monomer (A) so as to form a hydrogel polymer, and drying the hydrogel polymer. The method enables to provide an excellent particulate water-absorbent polymer that realizes (i) long-term color stability and improvement in urine tolerance and (ii) absorbing property, which are in such a trade-off relationship. In this way, the above object is attained. | 02-24-2011 |
Patent application number | Description | Published |
20100028658 | Hihgly corrosion-resistant, rust-prevention coating material, highly corrosion-resistant steel, and steel structure - A highly corrosion-resistant, rust-prevention coating material comprising:
| 02-04-2010 |
20100247956 | ZN ALLOY PARTICLES FOR HIGH CORROSION RESISTANCE RUST PROTECTION PAINT, METHOD OF PRODUCTION OF PARTICLES, HIGH CORROSION RESITANCE RUST PROTECTION PAINT CONATINING PARTICLES, HIGH CORROSION RESISTANCE STEEL MATERIAL COATED WITH PAINT, AND STEEL STRUCTURE HAVING STEEL MATERIAL - Zn alloy particles for high corrosion resistance rust prevention paint containing, by mass %, Mg: 0.01 to 30% and having a balance of Zn and unavoidable impurities, having physical fracture facets and/or cracks of a length of 0.01 μm or more or cracks of a depth of 0.01 μm or more, having an average particle size of 0.05 to 200 μm, and having an aspect ratio of maximum size and minimum size (maximum size/minimum size) of an average value of 1 to 1.5. Also, a high corrosion resistance rust prevention paint containing these Zn alloy particles and a high corrosion resistance steel material and steel structure coated with that paint. | 09-30-2010 |
20110199076 | STATE DETECTION DEVICE AND METHOD IN PORTABLE DEVICE - A device and method are provided that can detect a state when the relative positions of two cases of a portable device are changed by a form of motion other than simple rotation or shift. In a portable device including a joint mechanism that joins first and second cases in such a manner that the relative positions of the first and second cases can be changed by rotation and shift between a plurality of predetermined positions, the positional state of the first and second cases is determined based upon a plurality of magnets (M | 08-18-2011 |
20150117992 | LIBRARY DEVICE, LIBRARY CONTROL METHOD, AND COMPUTER READABLE RECORDING MEDIUM - A library device includes cell units which include a plurality of cells each configured to hold a cartridge, the cell units being loaded in a rack in a state where the cell units are arranged at least along a width direction of the rack to be capable of sliding out of the rack, and a robot adjacent to the rack holding the cell units. The robot includes a first mechanism of moving the robot at least along the width direction, a second mechanism of pulling out or loading the cell units from or into the rack, and a third mechanism of unloading or loading the cartridge from or into one of the cells while the cell unit is pulled out, and loading or unloading the cartridge into or from a drive operating the cartridge. | 04-30-2015 |
Patent application number | Description | Published |
20120193902 | IMPACT ABSORBING STEERING APPARATUS - Construction is achieved wherein a steering wheel can displace smoothly in the forward direction during a secondary collision, even when an electric motor | 08-02-2012 |
20120234623 | IMPACT ABSORBING STEERING APPARATUS - Construction is achieved wherein the rear section of a steering column | 09-20-2012 |
20120273291 | IMPACT ABSORBING STEERING APPARATUS - Construction is achieved wherein a steering wheel can displace smoothly in the forward direction during a secondary collision, even when an electric motor | 11-01-2012 |
20140150596 | MANUFACTURING METHOD FOR A STEERING COLUMN, AND STEERING APPARATUS THAT USES THAT STEERING COLUMN - Construction is achieved that is capable of maintaining overall strength of a cylindrical-shaped steering column, while at the same time making it possible to make the thickness part of the steering column thin. An outer column | 06-05-2014 |
20140246847 | STEERING COLUMN AND MANUFACTURING METHOD THEREOF - A steering column has an overall hollow and cylindrical shape at least part of which is formed using a column member. The column member includes a main body portion having one-side end section and the other-side end section and a cylindrical member having one-side end section and the other-side section. The cylindrical member is joined in the axial direction with respect to the main body portion by fitting and fastening the other-side end section of the cylindrical member inside the one-side end section of the main body portion. The inner diameter of the end surface of the other-side end section of the cylindrical member is smaller than the inner diameter of a portion of the other-side end section of the cylindrical member. The portion of the other end section of the cylindrical member constitutes a joined section between the main body and the cylindrical member. | 09-04-2014 |
20140311273 | STEERING COLUMN AND MANUFACTURING METHOD THEREOF, AND STEERING APPARATUS USING THIS STEERING COLUMN - Construction is achieved that is capable of maintaining overall strength of a cylindrical-shaped steering column, while at the same time making it possible to make the thickness part of the steering column thin. An outer column | 10-23-2014 |