Patent application number | Description | Published |
20090232982 | POROUS FILM PRODUCTION METHOD AND APPARATUS - A coating liquid containing a polymer and a hydrophobic solvent is applied to a support to form a coating film. Water vapor is condensed from ambient air on a surface of the coating film. A hydrophobic solvent is evaporated until a content rate of the solvent in the coating film reaches 50 wt %. The coating film is caused to contact with liquid water. The hydrophobic solvent contained in the coating film is moved from the coating film to the water. The water and the solvent are evaporated from the coating film. Thus, a porous film having a plurality of pores is produced. It is unnecessary to adjust a surface temperature of the coating film and a dew point of the gas around the coating film precisely. It becomes possible to evaporate the hydrophobic solvent contained in the coating film rapidly. | 09-17-2009 |
20090246365 | METHOD FOR PRODUCING POROUS FILM - After a second liquid is applied to a support and dried, a first liquid is applied thereon. On a film of the first liquid, a third liquid (water) is supplied in droplets using an inkjet-type liquid supply unit. An area supplied with the droplets is referred to as porous area. Next, an organic solvent is evaporated from the film and the droplets are evaporated from the porous area. Thus, a porous film is obtained. The porous film has the porous areas in which a plurality of pores are arranged. Since the droplets are directly formed by an inkjet printing method, a condensation process and a droplet growing process are unnecessary. Thus, the porous film is produced efficiently. Shapes of the porous areas can be changed easily. The porous areas can be formed on the porous film in various patterns. | 10-01-2009 |
20090246388 | METHOD FOR PRODUCING POROUS FILM - A second liquid is applied to a support and dried to form a middle layer. Then, a first liquid is applied to the middle layer. A third liquid is applied to a film of the first liquid using an inkjet type liquid supply unit to form a porous area. The first and third liquids differ in interfacial tension against water. Moist air is supplied to the porous area to cause condensation. In a third chamber, the condensation grows into large droplets, and a solvent is evaporated from the film. Thereafter, the droplets are evaporated from the porous area. Thus, a porous film in which a plurality of pores are arranged is produced. Since the porous area is formed by inkjet printing method, size, shape, and conditions of the porous area is easily changed. | 10-01-2009 |
20100070026 | STENT WITH POROUS MEMBRANE AND MANUFACTURING METHOD THEREOF - A dipping bath contains a polymer solution. Stent body members are dipped into the polymer solution. The polymer solution forms membrane on the surface of the stent body member. Humid atmosphere is created around the stent body members with the membrane to condense water vapor into water droplets on the surface of the membrane. After growing the water droplets to water drops, a solvent is evaporated, and the water drops penetrate into the membrane. Then, the water drops are evaporated with leaving pores in the membrane. The water drops function as templates. | 03-18-2010 |
20100080917 | POROUS MATERIAL PRODUCTION METHOD - A solution containing a polymer and a solvent is discharged onto a surface of a polymer film to form a coating film. When a thickness of the coating film is a critical thickness or less, dewetting of the solution occurs on the surface, and the coating film becomes a dewetting material having dewetting pores. Wet air is blown to a surface of the dewetting material. The solvent is evaporated from the dewetting material. Water vapor is condensed from ambient air on the surface of the dewetting material to generate water drops. Dry air is blown to the surface of the dewetting material. The solvent and the water drops are evaporated from the dewetting material. Thereby, it is possible to produce a porous material whose surface includes first pores as the dewetting pores formed by the dewetting of the solution and the second pores formed by the water drops as a template for the porous material. | 04-01-2010 |
Patent application number | Description | Published |
20160046828 | PROTRUSION/RECESS STRUCTURE AND PRODUCING METHOD FOR THE SAME - A protrusion/recess structure in which fine particles will not drop easily and which will not be deformed easily is provided, and a producing method for the same is provided. In the protrusion/recess structure (porous film), protrusions or recesses (fine corrugations) are formed in a surface. The protrusion/recess structure is formed from plural fine particles and an amphipathic high molecular compound having a catechol group. The high molecular compound at least partially coats a surface of the fine particles, to adhere the fine particles to one another. A diameter of the recesses is larger than a diameter of the fine particles. Cast film is formed from solution containing the fine particles and the high molecular compound having the catechol group. Condensation on the cast film is performed, and organic solvent and water droplets created by the condensation are evaporated to produce the protrusion/recess structure. | 02-18-2016 |
20160059537 | FILM STRUCTURE, PRODUCING METHOD AND ETCHING METHOD - Film, which has a fine structure and is adhered to various materials in an easy and strong manner without an adhesive agent, and a composite structure, film laminate, producing method and etching method, are provided. Solution in which a hydrophobic high molecular compound and a catechol group-containing compound are dissolved in solvent is cast, to form cast film. Dew is condensed on an uncovered surface of the cast film. The solvent and water droplets upon the condensation are evaporated from the cast film, to produce porous film. The porous film has a honeycomb structure in which plural pores are formed in one film surface. The pores are in a substantially equal shape and size, and are arranged regularly at a constant pitch. The film surface on a side having the pores of the porous film is a functional surface having an adhesive property. | 03-03-2016 |
Patent application number | Description | Published |
20160032036 | COPOLYMER AND HYDROPHILIC MATERIAL COMPOSED OF THE SAME - Provided are a cured product (for example, a film), in which the balance between hydrophilicity and abrasion resistance is superior, decrease in hydrophilicity by water is minimal, and the weather resistance is also superior, as well as a polymer and a polymer composition that can yield such a cured product. A polymer of the invention is a specific copolymer (i) having a sulfonic acid-containing group, an epoxy group, and a specific alkoxysilyl group in a molecule. | 02-04-2016 |
20160046827 | FILM COMPRISING COPOLYMER OR COMPOSITION - Provided are a film in which the balance between hydrophilicity and abrasion resistance is superior, decrease in hydrophilicity by water is minimal, and the weather resistance is also superior; as well as a polymer and a polymer composition that can yield such a film. The film of the invention is prepared from a specific copolymer (i) having a sulfonic acid-containing group, an epoxy group, and a specific alkoxysilyl group in a molecule, or from a composition including the copolymer (i). | 02-18-2016 |
Patent application number | Description | Published |
20090191373 | Single Layer Film and Hydrophilic Material Comprising the Same - A single layer film containing at least one anionic hydrophilic group selected from a sulfonic acid group, a carboxyl group and a phosphate group, wherein an anion concentration ratio (Sa/Da) of an anion concentration at a surface (Sa) to an anion concentration at a deep part (Da) is 1.1 or more. The single layer film is a copolymer prepared by polymerizing a composition containing a compound (I) represented by the general formula (1) ([X]s[M1]1[M2]m (1)) and a compound (II) having two or more (meth)acryloyl groups in a molecule at a molar ratio of 15:1 to 1:30 and having a water contact angle of 30° or less. Such a single layer film has high hydrophilicity and surface hardness and is excellent in antifogging property, antifouling property and antistatic property, thus is useful as an antifogging material, an antifouling material, an antistatic material and a multilayer body. | 07-30-2009 |
20110008630 | HYDROPHILIC FILM - The present invention provides a hydrophilic film that has high adhesion to inorganic materials and is safer and excellent in transparency and also exhibits both very high hydrophilicity and abrasion resistance, and also provides a laminate including the hydrophilic film. The hydrophilic film is produced by applying a specific hydrophilic compound (c) having an acryloyl group and a potassium sulfonate group or the like to a surface of a layer formed from a mixture containing a silane compound (a) including one silicon atom, a mercapto group or the like, and at least one silicon-bonded group selected from the group consisting of an alkoxy group, a halogen group, and a hydroxy group, and a silane compound (b) including at least four silicon-bonded groups selected from the group consisting of an alkoxy group, a halogen group, and a hydroxy group and not including groups reactive with a carbon-carbon double bond, and allowing a reaction between at least a part of acryloyl groups contained in the hydrophilic compound (c) and at least a part of mercapto groups derived from the compound (a). | 01-13-2011 |
20110014483 | PRIMER COMPOSITION - [Object] The present invention aims to provide a primer composition that can give good adhesion between an acrylic resin and an inorganic substrate, such as a substrate formed of metal, metal oxide, glass, ceramic, cement, or mortar and is suitably used as a primer for bonding them together. | 01-20-2011 |
Patent application number | Description | Published |
20100272475 | DEVELOPER SUPPLY MECHANISM, DEVELOPMENT APPARATUS AND IMAGE FORMING APPARATUS HAVING THE DEVELOPER SUPPLY MECHANISM - A developer supply mechanism is composed of: a developer supply path one end side of which is opened upward and which guides the developer in substantially a vertical direction; a convex portion that is formed on a wall surface of the developer supply path; a coil spring that is disposed in the developer supply path, stretchable and shrinkable in a longitudinal direction of the developer supply path, pressurized to the convex portion in a natural-length state, stretched toward one end side of the developer supply path when the convex portion is hooked on between pitches by a circumferential-direction rotation, and is given a horizontal-direction movement to leave the convex portion when coming off the convex portion; and a drive portion that is connected to the coil spring at the other end side of the developer supply path and rotates the coil spring in a circumferential direction of the coil spring. | 10-28-2010 |
20110052270 | DEVELOPING DEVICE AND IMAGE-FORMING APPARATUS PROVIDED THEREWITH - A developing device includes a developing container for accommodating a two-component developer; a developer bearing member for bearing and conveying the developer, a fixed magnet including a release pole for releasing the developer from the developer bearing member, being fixed to the inside of the developer bearing member; and a backflow prevention member that is a sheet-shaped member disposed along the entire length in the longitudinal direction of the developer bearing member so as to be upstream in the direction of rotation of the developer bearing member as viewed from the release pole, the backflow prevention member being disposed so that a proximal end portion thereof is fixed to an inside surface of the developing container, and a distal end portion thereof is in contact with or adjacent to the developer bearing member and facing downstream in the direction of rotation of the developer bearing member. | 03-03-2011 |
20140029979 | IMAGE FORMING APPARATUS - An image forming apparatus of the present disclosure includes a drum unit, a development unit, a stopper, a pressing unit and an interlock device. The development unit includes a development roller that develops a toner image on the photoconductor drum. The drum unit and the development unit can be removed from the main body of the apparatus. The stopper is freely moved between a restriction position where the removal of the drum unit is restricted and a release position where the restriction of the removal of the drum unit is released. The pressing unit is freely moved between a pressing position where the development roller is pressed onto the photoconductor drum and a pressing release position where the development roller is separated from the photoconductor drum such that the pressing is released. The interlocking device interlocks the movements of the stopper and the pressing unit. | 01-30-2014 |
20140035219 | SHEET CONVEYING APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A sheet conveying apparatus includes a casing, a first conveying path, a second conveying path, a joining conveyance path, and a guide member. The joining conveyance path is connected to a junction portion of the first conveying path and the second conveying path, and extends downward in a sheet conveying direction. The guide member is disposed in the junction portion of the first conveying path and the second conveying path, and shifted to a position between a first position to guide the first sheet from the first conveying path to the joining conveyance path and a second position to guide the second sheet from the second conveying path to the joining conveyance path. The guide member includes a supporting point portion disposed at a central part or around thereof in a lengthwise direction, so as to change in position by pivoting around the supporting point portion. | 02-06-2014 |