Patent application number | Description | Published |
20090324884 | Polyamide Based Mixed Resin Laminated Film Roll and a Process for Producing the Same - The present invention provides a polyamide based mixed resin laminated film roll formed by winding up a polyamide based mixed resin laminated film comprising a plurality of polyamide mixed resin sheets stacked on top of each other. A first sample cutout portion is provided within 2 m from the winding end of film, and a final sample cutout portion is provided within 2 m from the winding start of film. The roll is regulated so that, when sample cutout portions are provided at intervals of about 100 m from the first sample cutout portion, for all samples cutout from the cutout portions, the elastomer content, tensile modulus of elasticity, thickness unevenness in the longitudinal direction and other properties fall within a predetermined variation range. | 12-31-2009 |
20110039069 | SELF-ADHESIVE FILM - The present invention provides a self-adhesive film which is a drawn polypropylene-based resin film comprising a laminated body containing an adhesive layer and a release layer which are provided on the surface of a base layer formed of a polypropylene-based resin, wherein an average surface roughness SRa of a surface of the above-described release layer is 0.200 μm or less, an average surface layer roughness SRa of a surface of the self-adhesive layer of the film is 0.030 μm or less, the contact area with the adherent, which is defined in the description, is 90% or more and 100% or less, and the film haze ranges from 1 to 40%. The self-adhesive film of the present invention is less likely to cause a blocking after the film is stored in a rolled state, and the processing suitability is excellent, and forming is less likely occur even when the film having been adhered to an adherend is processed at a high temperature, and further transparency is excellent. | 02-17-2011 |
Patent application number | Description | Published |
20080206531 | Polyamide Resin Laminated Film - A polyamide resin laminate film preferably used for packaging purposes and the like shows good slip property, superior handling workability even under a high humidity environment, and good transparency. The polyamide resin laminate film is produced by a co-extrusion method. In the film, a coating layer made of a polyamide resin containing inorganic fine particles having a fine pore volume of 0.3-1.0 ml/g in a proportion of 0.2-1.00 wt % is laminated on at least one surface of the substrate layer made of a polyamide resin, and the film is uniaxially or biaxially stretched. The film is adjusted to show a dynamical friction coefficient of not more than 0.7 at 80% RH, and a haze value of not more than 5.0. | 08-28-2008 |
20080206556 | Coated Film and Vapor-Deposited Film - A coated film having an overall thickness of 5-50 μm is provided. A substrate made of a polymer resin composition may be laminated with a coating layer including a melamine series compound and a poly (vinyl alcohol)-based polymer to form the coated film. Further, an inorganic thin film layer may be vapor-deposited on the coating layer of the coated film to form a vapor-deposited film. Certain embodiments of the vapor-deposited film may have oxygen permeability and moisture vapor permeability before and after the gelbo test that satisfies the following formula: | 08-28-2008 |
20080254259 | Polyamide Based Mixed Resin Film Roll And Process For Producing The Same - The problem to be solved by the present invention is to provide a biaxially oriented polyamide based mixed resin film roll with which bag forming processing by lamination is able to be performed smoothly and with high yield ratio and at the same time with which packages free of S-shaped curls can be obtained efficiently. A solution for the problem concerns the polyamide based mixed resin film roll of the present invention which includes a first sample cutout portion within 2 m from the winding end of film and a final cutout portion within 2 m from the winding start of film, and when a sample cutout portion is set up in approximately every 100 m from the first sample cutout portion, in all samples cut out from each of the cutout portions, physical properties such as elastomer content, elastic modulus in tension, boiling water shrinkage percentage and refraction index in the thickness direction are adjusted to be within a predetermined range of variation range. | 10-16-2008 |
20090065979 | Process for Producing Polyamide-Based Resin Film Roll - The present invention provides a process for production of a polyamide based resin film roll comprising a step of melt-extruding and cooling wherein polyamide based resin is melt-extruded and cooled in a sheet form onto a mobile cooling material surface to obtain an unstretched sheet; a step of biaxial stretching wherein an unstretched sheet is stretched biaxially in the longitudinal direction and the transverse direction; and a step of winding up the biaxially stretched film that is biaxially stretched in a form of roll. Then, in the step of melt-extruding and cooling polyamide based resin onto a mobile cooling material surface, corona discharge in a streamer corona state is performed between an electrode applied with high DC voltage and the polyamide based resin sheet in the melted state, and sufficient electric charges that enable the polyamide based resin sheet in the melted state to come in close contact with the mobile cooling material surface are imparted. | 03-12-2009 |
20090085259 | Process for Producing Polyamide Based Resin Laminated Film Roll - A production process of a film roll according to the present invention includes a step of melt-extruding and cooling wherein polyamide based resin is melt-extruded and cooled in a sheet form onto a movable cooling material surface to obtain an unstretched sheet; a step of biaxial stretching wherein an unstretched sheet is stretched biaxially in the longitudinal direction and the transverse direction; and a winding-up step of taking up the biaxially stretched film in a roll form. And in the step of melt-extruding and cooling, corona discharge in a streamer corona state is performed between an electrode applied with high dc voltage and the polyamide based resin sheet in the melted state, and sufficient electric charges that enable the polyamide based resin sheet in the melted state to come in close contact with the movable cooling material surface are imparted. | 04-02-2009 |
20090191369 | Polyamide Based Laminated Resin Film Roll and Production Process Thereof - The polyamide based resin laminated film roll of the present invention has physical properties such as boiling water shrinkage percentage, surface roughness, refractive index in the thickness direction, etc., adjusted to achieve a predetermined range of degree of variability, when the polyamide based resin laminated film has a first sample cutout portion set up within 2 m from the winding end of film and final cutout portion within 2 m from the winding start of film, and at the same time, has a sample cutout portion set up at approximately every 100 m from the first sample cutout portion. | 07-30-2009 |