Patent application number | Description | Published |
20090071339 | Method Of Manufacturing Porous Polytetrafluoroethylene Membrane, Filter Medium, And Filter Unit - Provided is a method of manufacturing a porous polytetrafluoroethylene (PTFE) membrane capable of achieving both a high collection efficiency and a low pressure drop, though it has a larger average pore size and a greater thickness than conventional porous PTFE membranes. This manufacturing method includes: stretching an unsintered polytetrafluoroethylene sheet by a factor of 5 to 30 in a predetermined direction at a temperature equal to or higher than the melting point of polytetrafluoroethylene; further stretching the stretched sheet by a factor of 5 to 40 in a direction different from the predetermined direction at a temperature lower than the melting point; and after the stretchings, heating the stretched sheet at a temperature equal to or higher than the melting point. | 03-19-2009 |
20100236203 | FILTER UNIT PANEL - The present invention provides a filter unit panel in which the generation of an organic gas derived from an adhesive can be suppressed although a plurality of filter units each having a frame body made of a resin member and an outer frame that surrounds these units are used together. This filter unit panel includes a plurality of filter units ( | 09-23-2010 |
20100251680 | FILTER UNIT PANEL AND METHOD OF MANUFACTURING THE SAME - The present invention improves a method of bonding by welding a plurality of filter units each having a frame body made of a resin member so as to provide a filter unit panel having excellent pressure resistance. This filter unit panel is obtained by disposing a plurality of filter units so that the outer peripheral surfaces of adjacent filter units ( | 10-07-2010 |
20100269464 | FILTER MEDIUM AND METHOD OF MANUFACTURING THE SAME AND FILTER UNIT - Provided is a filter medium including a porous polytetrafluoroethylene (PTFE) membrane and a gas-permeable supporting member that are integrated to ensure sufficient stiffness, having excellent gas permeability, and providing excellent bonding between respective layers included in the filter medium. The gas-permeable supporting member includes: a substrate having gas-permeability; and a fiber layer that is placed on the substrate so as to be in contact with the porous PTFE membrane. The gas-permeable supporting member has a structure in which fibers of the fiber layer enter into the substrate and are entangled with the substrate so that the fiber layer is bonded to the substrate. The fiber layer contains polyolefin-containing fibers that are bonded to the porous membrane. | 10-28-2010 |
20100307118 | AIR FILTER - An air filter | 12-09-2010 |
20130104739 | VENTILATION MEMBER AND VENTED HOUSING INCLUDING SAME | 05-02-2013 |
20130337261 | MOISTURE-PROOF MATERIAL - The present invention relates to a moisture-proof material containing a substrate and an adhesive layer formed on at least one surface of the substrate, wherein at least one of the substrate and the adhesive layer comprises a polyphosphate flame retardant and a phosphate triester flame retardant, simultaneously or alternatively. | 12-19-2013 |
20140174654 | SEALING SHEET - The present invention provides a sealing sheet containing a flame retardant adhesive sheet having a flame retardant-containing adhesive layer, wherein the flame retardant-containing adhesive layer has a void content of 5-40%. | 06-26-2014 |
20140178683 | SEALING SHEET - The present invention provides a sealing sheet mainly composed of an adhesive sheet composed of a core film having a water vapor transmission rate of less than 7.5 g/100 sq. in 24 hr as measured by a method according to JIS Z 0208, and a Relaxation rate of not less than 10% as measured by the following bending-stress relaxation rate measurement test, and an adhesive layer formed on both surfaces of the core film:
| 06-26-2014 |
20140178684 | SEALING SHEET - The present invention provides a sealing sheet mainly composed of an adhesive sheet, wherein | 06-26-2014 |
20140182778 | SEALING SHEET - The present invention provides a sealing sheet containing a flame retardant adhesive sheet having a flame retardant-containing adhesive layer, which has a retention time of 60-2000 seconds in the following constant load peel test: | 07-03-2014 |
20140370223 | THERMAL SPRAY MASKING TAPE - A double coated tape including a glass cloth carrier, a pressure sensitive adhesive layer on each side of the carrier, and a porous release liner. The pressure sensitive adhesive leaves no residue property on Stainless and Copper panel after 300° C.×15 minute with 5 minute cooling. A method of forming a double sided adhesive tape including: providing a porous carrier having a first surface and a second surface; applying a first pressure sensitive adhesive on the first surface of the porous carrier, curing the first pressure sensitive adhesive to form a first pressure sensitive adhesive layer, laminating a porous release liner on the first pressure sensitive adhesive layer, applying a second pressure sensitive adhesive on the second surface of the porous carrier; and curing the second pressure sensitive adhesive to form a second pressure sensitive layer. | 12-18-2014 |