Celgard LLC Patent applications |
Patent application number | Title | Published |
20150115976 | CONTINUOUS WEB INLINE TESTING APPARATUS, DEFECT MAPPING SYSTEM AND RELATED METHODS - In at least selected embodiments, an industrial size continuous Hipot testing system has defect mapping capability capable of finding pinholes, weak spots, and/or embedded conductive particles in non-conductive sheet materials. Continuous testing is made possible through a pair of uniquely designed rollers, such as conductive polymer rollers. Automatic defect mapping is also incorporated into the system through the integration of the Hipot testing and line scan camera systems. The unit potentially has wide applications in many industries, such as, for example, semi-conductors and electronics, medical, high end packaging, and so forth. | 04-30-2015 |
20150053083 | MULTI-CARTRIDGE MEMBRANE CONTACTORS, MODULES, SYSTEMS, AND RELATED METHODS - A multi-cartridge membrane contactor that can be used for many purposes, including, but not limited to, being a multi-cartridge degassing module. In accordance with at least particular certain embodiments, the module includes a plurality of hollow-fiber cartridges placed in a radial pattern around a central cartridge within a single larger vessel. For example, there may be two radial sets of cartridges placed in series at each of the radial positions. | 02-26-2015 |
20140272533 | MULTILAYER HYBRID BATTERY SEPARATORS FOR LITHIUM ION SECONDARY BATTERIES AND METHODS OF MAKING SAME - A multi-layered battery separator for a lithium secondary battery includes a first layer of a dry processed membrane bonded to a second layer of a wet processed membrane. The first layer may be made of a polypropylene based resin. The second layer may be made of a polyethylene based resin. The separator may have more than two layers. The separator may have a ratio of TD/MD tensile strength in the range of about 1.5-3.0. The separator may have a thickness of about 35.0 microns or less. The separator may have a puncture strength of greater than about 630 gf. The separator may have a dielectric breakdown of at least about 2000V. | 09-18-2014 |
20140268175 | METHOD AND SYSTEM FOR OPTICAL CAMBER MEASUREMENT OF FLAT SHEET MEMBRANES, FILMS, AND WEBS - A system, method, and device for measuring camber in a film is disclosed. The system generally includes: a flat surface with a longitudinal axis, at least three sensors spaced apart along the longitudinal axis, and a computing device operatively connected to each sensor. When the film is positioned in relationship to the sensors, the computing device computes the camber of the film. The flat surface may be a table with a film holder. At least one of the sensors may be a LED sensor. The computing device may have an output means, such as a monitor, a printer, or both. The computing device defines a straight line between the first and third sensor based on the position of the film, and the camber is a deviation of the film, measured by the second sensor, from the straight line. | 09-18-2014 |
20140263061 | MEMBRANE CONTACTORS AND SYSTEMS FOR MEMBRANE DISTILLATION OR AMMONIA REMOVAL AND RELATED METHODS - New, improved, or modified membrane contactors, modules, systems, and/or methods for membrane distillation and/or ammonia removal, and/or methods of manufacture, use, and/or the like. In accordance with at least selected embodiments, particular possibly preferred membrane contactors, modules, systems, and/or methods for membrane distillation and/or ammonia removal, and/or to particular possibly preferred membrane contactors, modules, systems, and/or methods for membrane distillation and/or ammonia removal, involving membrane contactors adapted for membrane distillation, for ammonia removal, or for both membrane distillation and for ammonia removal, as well as for other membrane contactor systems, methods or processes such as degassing, gasifying, separation, filtration, and/or the like. | 09-18-2014 |
20140206251 | SURFACE MODIFYING AGENTS, MODIFIED MATERIALS AND METHODS - The present invention relates to surface modifying agents for polymeric and/or textile materials, methods of making and/or using a surface modifying agent to modify and functionalize polymeric and/or textile materials, and/or methods of using surface modified or functionalized polymeric and textile materials, and/or products using or incorporating surface modified or functionalized polymeric and textile materials. For example, the surface modifying agent in precursor form can be styrene sulfonyl azide monomer, polymer or copolymer capable of undergoing a chemical reaction in the presence of heat or light to form one or more styrene sulfonated nitrene monomers, polymers or copolymers, which are capable of chemically reacting with the surface of a polymeric or textile material to endow a specific or desired chemical surface functionality to the surface of a polymeric or textile material. Furthermore, the present invention is possibly preferably directed to a surface modifying agent which comprises a styrene sulfonated nitrene monomer, polymer or polymer containing one or more nitrene functional groups, which are capable of chemically reacting via an insertion reaction into one or more carbon-hydrogen bonds on the surface of a polymeric or textile material in order to chemically attach a specific or desired chemical functionality to the surface of a polymeric or textile material. | 07-24-2014 |
20140127492 | COPOLYMER MEMBRANES, FIBERS, PRODUCTS AND METHODS - In accordance with at least selected embodiments, the present invention is directed to novel, improved, or modified porous membranes, fibers, porous fibers, products made from such membranes, fibers or porous fibers, and/or related methods of production, use, and/or the like. In accordance with at least certain embodiments, the present invention is directed to novel, improved, or modified microporous membranes or films, fibers, microporous fibers, materials or layers made from such membranes, fibers or porous fibers, and the like for use in textile materials, garments, products, and/or textile related applications. Microporous membranes, fibers, and/or microporous fibers are made of one or more copolymers, such as block or impact copolymers, or of at least one polyolefin combined with at least one copolymer as a means of improving the hand, drape, and/or surface coefficient of friction performance properties for use in textile garments, textile materials or textile related applications. | 05-08-2014 |
20140093687 | POROUS MEMBRANES, MATERIALS, COMPOSITES, LAMINATES, TEXTILES AND RELATED METHODS - The present invention is directed to novel, improved, modified or treated microporous membranes for use in textile related applications and which are preferably composed of two or more dissimilar porous membrane or material layers laminated together using heat, compression and/or adhesives. The preferred inventive laminated composite microporous membrane is modified using a technique or treatment such as microcreping to introduce permanent small, regularly spaced, crepes, profiles, compactions, pleats, or wrinkles into the laminated composite microporous membrane for the purpose of improving mechanical strength, elasticity and/or resiliency. In addition, the inventive microcreped microporous laminated membrane more preferably has significantly improved ‘hand’ or softness, has ‘next-to-the-skin’ softness, and/or is quiet without crinkling noises during movement, which may be desired performance properties or characteristics of or in textile garments, materials or applications. | 04-03-2014 |
20140079980 | THIN BATTERY SEPARATORS AND METHODS - In accordance with at least selected aspects, objects or embodiments, optimized, novel or improved membranes, battery separators, batteries, and/or systems and/or related methods of manufacture, use and/or optimization are provided. In accordance with at least selected embodiments, the present invention is related to novel or improved battery separators that prevent dendrite growth, prevent internal shorts due to dendrite growth, or both, batteries incorporating such separators, systems incorporating such batteries, and/or related methods of manufacture, use and/or optimization thereof. In accordance with at least certain embodiments, the present invention is related to novel or improved ultra thin or super thin membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. In accordance with at least particular certain embodiments, the present invention is related to shutdown membranes or battery separators, and/or lithium primary batteries, cells or packs incorporating such separators, and/or systems incorporating such batteries, cells or packs. | 03-20-2014 |
20140045033 | SEPARATOR MEMBRANES FOR LITHIUM ION BATTERIES AND RELATED METHODS - A battery separator for a secondary lithium battery includes a microporous/porous membrane with a ceramic coating of one or more layers, a layer may include one or more particles and/or binders. | 02-13-2014 |
20130327219 | HIGH PRESSURE LIQUID DEGASSING MEMBRANE CONTACTORS AND METHODS OF MANUFACTURING AND USE - In accordance with at least selected embodiments of the present invention, an improved liquid degassing membrane contactor or module includes a high pressure housing and at least one degassing cartridge therein. It may be preferred that the high pressure housing is a standard, ASME certified, reverse osmosis (RO) or water purification pressure housing or vessel (made of, for example, polypropylene, polycarbonate, stainless steel, corrosion resistant filament wound fiberglass reinforced epoxy tubing, with pressure ratings of, for example, 150, 250, 300, 400, or 600 psi, and with, for example 4 or 6 ports, and an end cap at each end) and that the degassing cartridge is a self-contained, hollow-fiber membrane cartridge adapted to fit in the RO high pressure housing. | 12-12-2013 |
20130043177 | WAFER-SHAPED HOLLOW FIBER MODULE FOR IN-LINE USE IN A PIPING SYSTEM - A wafer-shaped hollow fiber module adapted for in-line use in a piping system. The piping system may include two standard bolted flange connections, and at least one wafer-shaped hollow fiber module sealed between the two standard bolted flange connections. The wafer shaped hollow fiber module includes: a cylindrical housing having an open end and a closed end having a first sealing surface and an inlet port; at least one side port through the cylindrical housing; an end cap united to the open end having a second sealing surface and an outlet port. | 02-21-2013 |