| Patent application number | Description | Published |
|---|
| 20080237117 | COATED ASYMMETRIC MEMBRANE SYSTEM HAVING OLEOPHOBIC AND HYDROPHILIC PROPERTIES - A porous membrane assembly includes, in an exemplary embodiment, a porous membrane substrate having hydrophobic properties. The membrane substrate includes a first side, an opposing second side and a plurality of pores extending therethrough. The membrane substrate also includes a discontinuous layer of an oleophobic coating applied to the first side so that the plurality of pores in the first side are substantially free of the oleophobic coating, and a continuous layer of an amine containing hydrophilic polymer coating applied to the second side of the membrane substrate. | 10-02-2008 |
| 20080241504 | COATED ASYMMETRIC MEMBRANE SYSTEM HAVING OLEOPHOBIC AND HYDROPHILIC PROPERTIES - A porous membrane assembly includes, in an exemplary embodiment, a porous membrane substrate having hydrophobic properties. The membrane substrate includes a first side, an opposing second side and a plurality of pores extending therethrough. The membrane substrate also includes a discontinuous layer of an oleophobic coating applied to the first side so that the plurality of pores in the first side are substantially free of the oleophobic coating, and a continuous layer of an amine containing hydrophilic polymer coating applied to the second side of the membrane substrate. | 10-02-2008 |
| 20090117367 | ARTICLE AND ASSOCIATED METHOD - An article includes a membrane having pores and a selectively permeable coating supported by the membrane. The selectively permeable coating includes a hydroxyalkyl-substituted polyalkyleneimine in an amount that is sufficient to chemically react with a chembio agent to reduce the biological activity of the chembio agent or increase an amount of time for a significant amount of unreacted biologically active chembio agent to pass through the article. An associated method is also provided. | 05-07-2009 |
| 20090155564 | ARTICLE AND ASSOCIATED METHOD - An article includes a membrane having pores and that is air permeable. A nanoparticle precursor is dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to form a catalytically active nanoparticle. An associated method is also provided. | 06-18-2009 |
| 20090205116 | ARTICLE, LAMINATE AND ASSOCIATED METHODS - An article includes a membrane having pores and a selectively permeable coating supported by the membrane. The selectively permeable coating includes an antimicrobial agent in an amount that is sufficient to chemically react with a chemical or microbial agent to reduce the biological activity of the chemical or microbial agent or increase an amount of time for a significant amount of unreacted biologically active chemical or microbial agent to pass through the article. A laminate and methods of providing these are also provided. | 08-20-2009 |
| 20090211581 | RESPIRATORY MASK WITH MICROPOROUS MEMBRANE AND ACTIVATED CARBON - A respiratory mask for protecting a wearer against airborne particulates, chemical vapors, and splashes is disclosed. The mask includes a body sized to fit over at least a portion of the face of a wearer. The body includes a first layer including a microporous membrane having a plurality of interconnecting pores extending therethrough, and a second layer including an absorbent textile. The mask further includes an attachment mechanism for coupling the mask to the face of the wearer. | 08-27-2009 |
| 20090235625 | FILTER AND ASSOCIATED METHOD - A filter includes a membrane having pores and that is air permeable. A nanoparticle precursor is dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to form a catalytically active nanoparticle. An associated method is also provided. | 09-24-2009 |
| 20090239435 | PROTECTIVE SUIT AND METHODS OF MANUFACTURE THEREOF - The present disclosure is directed to a composite material comprising one or more layers that are able to bind and deactivate chemical and/or biological agents. The first layer comprises a porous polymer substrate and a nucleophilic organic polymer cross-linked on the surface or within the pores of the porous polymer substrate using a carbamate cross-linking agent, wherein the cross-linked nucleophilic polymer comprises functional groups operative to form a covalent bond with a chemical or biological agent. The composite material is used to manufacture items of protective apparel including chemical-biological protective suits. | 09-24-2009 |
| 20090273111 | METHOD OF MAKING A WIND TURBINE ROTOR BLADE - A method of manufacturing an article with vacuum assist. The method comprises the steps of providing a work-piece to be impregnated with resin. The work-piece has reinforcing fibers. A microporous membrane is applied over the work-piece. The microporous membrane has an oleophobic treatment. A vacuum film is applied over the microporous membrane. A polymeric resin is introduced to the work-piece. The resin is infused through the work-piece by applying a vacuum to the work-piece. The resin is cured to form the article. | 11-05-2009 |
| 20090295028 | Process and apparatus for making multi-layered, multi-component filaments - The present invention is directed to a process for forming a plurality of multi-layered filaments from multiple thermoplastic synthetic polymers and an apparatus containing a melt spinning beam which comprises multiple polymer inlet passages each communicating with separate multiple coat hanger distribution manifolds, separate filters connected downstream of each coat hanger distribution manifold, a combining manifold connected downstream of the filters and containing channels to retard polymer flow across planar molten polymer flow streams and a spinneret comprising a plurality of spinneret exit orifices connected downstream of the combining manifold for spinning of the multi-layered filaments. | 12-03-2009 |
| 20100024651 | MEMBRANE CONTACTOR SYSTEMS FOR GAS-LIQUID CONTACT - A membrane contactor system for removing a component from a gas, comprising a housing defining a gas flow path; a microporous membrane positioned in the housing to allow the gas to flow across the membrane, wherein the membrane comprises a structure of nodes connected by fibrils in which surfaces of the structure of nodes and fibrils define a plurality of interconnecting pores extending through the microporous membrane, wherein the plurality of interconnecting pores are configured to allow the component to diffuse therethrough; and an oleophobic coating disposed on the microporous membrane to form a coated membrane and configured to provide oleophobicity to the coated membrane without blocking the plurality of interconnecting pores. | 02-04-2010 |
| 20100024898 | FUEL TANK VENT INCLUDING A MEMBRANE SEPARATOR - A fuel tank vent includes a nanoporous membrane separator positioned in an opening in a fuel tank to allow vapor from a fuel to flow across a membrane, wherein the membrane comprises a network in which surfaces of the network define a plurality of interconnecting pores extending through the membrane, wherein the plurality of interconnecting pores have a mean pore size of about 0.1 nanometers to about 50 nanometers, and are permeable to a selected one or both of the fuel vapor and air, and impermeable to a liquid fuel; and an oleophobic enhancement coating disposed on surfaces of the plurality of interconnecting pores and configured to provide oleophobicity to the membrane. | 02-04-2010 |
| 20100028635 | EDGE LAMINATED ROLL GOODS - A laminated article comprises a first web of material of a first width. A second web of material has a second width substantially equal to the first width. The second web is coextensive with the first web. The second web is laminated at a lateral portion to the first web. A permeable unlaminated portion extends transversely of the laminated lateral portion. The width of the laminated lateral portion is less than the half the first width. | 02-04-2010 |
| 20100068431 | ARTICLE AND METHOD FOR FORMING AN ARTICLE - An article includes a plastic material and an expanded polytetrafluoroethylene (ePTFE) laminate coupled to the plastic material. | 03-18-2010 |
| 20100077529 | ARTICLE, LAMINATE AND ASSOCIATED METHODS - An article includes a porous membrane having pores, a first selectively permeable coating supported by the membrane and a component protective against delamination of the selectively permeable coating from the porous membrane and/or any other coatings applied thereto. The first selectively permeable coating includes an antichemical, antibiological, antiradiological and/or antimicrobial agent. The protective component may be provided alone, or as an element of the first selectively permeable coating, or, a second selectively permeable coating. A laminate and methods of providing these are also provided. | 04-01-2010 |
| 20100285297 | MEMBRANE STRUCTURE FOR VACUUM ASSISTED MOLDING FIBER REINFORCED ARTICLE - A method of manufacturing a fiber-reinforced article. The method includes the steps of providing a mat fiber stricture defining voids therein. A membrane structure is applied over at least a portion of the fiber structure. The membrane structure includes a microporous membrane. At least the microporous membrane of the membrane structure has an oil resistance rating of at least a number 8 determined by AATCC 118 testing. A resin and hardener mix is provided. The resin is infused into voids of the fiber structure by applying a vacuum to the fiber structure and the membrane structure wherein the membrane structure inhibits the flow of resin therethrough. | 11-11-2010 |
| 20100316819 | COMPOSITE MEMBRANE FOR CHEMICAL AND BIOLOGICAL PROTECTION - A system, in certain embodiments, includes a protective membrane having first and second layers. The first layer is air permeable, vapor breathable, and liquid repellant. The second layer is vapor breathable, liquid repellant, and adsorptive of chemical and/or biological agents. | 12-16-2010 |
