| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 427244000 | Filter, sponge, or foam | 36 |
| 20080317953 | MESOPOROUS MATERIALS AND METHODS - Mesoporous articles and methods for making mesoporous articles are disclosed. | 12-25-2008 |
| 20110064876 | METHOD OF PRODUCING CERAMIC FOAMS - A process for foaming ceramic foams, in which the ceramic foams are produced from a precursor or a mixture of precursors which contain at least one ceramic-forming element and liberates at least one volatile reaction product during an inorganic gelation process. In one embodiment, foaming is based on a precursor containing crystals of the AlCl | 03-17-2011 |
| 20110165324 | Method for Manufacturing Ecotypic Artificial Leather or Leather-like and Automated Manufacturing Line Thereof - A method for manufacturing ecotypic artificial leather or leather-like includes the following steps: a first step of forming a surface layer; a second step of spray foaming which is to coat the partly cured surface layer with a reactive solvent-free multicomponent polymer using a multicomponent reaction injection molding device and a spray gun; a third step of once-molding roller pressing which is to press the substrate, foaming layer, surface layer and release paper together between the multicomponent polymer foaming stage and curing stage using a roller press device; and a fourth step of maturing and stripping, in which the substrate, foaming layer, surface layer and release paper are heated up, and then are cooled down while the release paper is removed. The production process utilizing the manufacturing method described in this invention is totally environmentally friendly. The physical and chemical properties of the product are excellent. The equipment utilized has high degree of automation and is easy to industrialize. | 07-07-2011 |
| 20110244127 | METHOD OF FORMING COATED STRUCTURES - A process for forming room temperature water soluble polymer coatings on porous substrates by a solution of a room temperature water soluble polymer, one or more crosslinkers, a solvent for the room temperature water soluble polymer such as water and optionally one or more porogens, or functional agents, stirring the mixture until all the components are dissolved, adding the solution to a porous structure such as a non-woven fabric or a porous membrane and drying the solution on to the substrate as a coating before subjecting the coating to crosslinking. Alternatively, the coating may be partially crosslinked before drying the solution. Porous structures having a room temperature water soluble polymer coating and being capable of convective flow through the pores of the structure and diffusive flow through the coating can be formed. | 10-06-2011 |
| 20120003387 | AMINE AQUEOUS SOLUTION FOR FORMING AN ACTIVE LAYER OF POLYAMIDE REVERSE OSMOSIS COMPOSITE MEMBRANE, POLYAMIDE REVERSE OSMOSIS COMPOSITE MEMBRANE PREPARED THEREBY, AND PREPARATION METHOD THEREOF - Disclosed are an amine aqueous solution for forming an active layer of a polyamide reverse osmosis composite membrane and a preparation method of the polyamide reverse osmosis composite membrane using the same. The amine aqueous solution comprises 0.1 to 20 wt % of a polyfunctional amine compound, 0.1 to 20 wt % of an alcohol amine compound, 0.1 to 20 wt % of a tertiary amine compound, and 40 to 99.7 wt % of water. Due to using an amine aqueous solution having an alcohol amine and a tertiary amine compound, the polyamide reverse osmosis composite membrane has high water permeability and enhanced salt rejection rate, and thus is useful for the membrane field. | 01-05-2012 |
| 20120009346 | METHOD OF MANUFACTURING SILICA MEMBRANE - A simple method of manufacturing a silica membrane which has high separation performance and high permeation flux is provided. The method is a method for manufacturing a silica membrane | 01-12-2012 |
| 20120034377 | METHOD FOR COATING A FILTER MEDIUM OF A SAND CONTROL SCREEN ASSEMBLY - A method for coating a filter medium ( | 02-09-2012 |
| 20120064244 | VEGETABLE OIL-BASED COATING AND METHOD FOR APPLICATION - A method of applying a urethane material to a vehicle substrate that includes the steps of: providing a vehicle substrate; and applying a urethane material to the vehicle substrate where the urethane material typically includes the reaction product of an A-side that includes an isocyanate and a B-side that typically includes a blown soy oil, at least one polyol at least partially derived from petroleum, and a cross-linker. A vehicle composite that typically includes the vehicle substrate and the urethane material. | 03-15-2012 |
| 20120070576 | COATED POROUS METAL MEDIUM - The invention relates to a coated porous medium comprising metal particles. The metal particles define a free area surface S. The free area surface S is substantially completely coated with a coating layer. The coating layer is substantially conformal, substantially uniform in composition and has substantially the same thickness over the whole free area surface. The invention further relates to the use of a coated medium as filter medium and to a method of manufacturing a coated medium. | 03-22-2012 |
| 20120076934 | ULTRAFILTRATION MEMBRANES AND METHODS OF MAKING - The present invention is an integral multilayered composite membrane having at least one ultrafiltration layer made by cocasting or sequentially casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a multilayered composite membrane having at least one ultrafiltration layer. | 03-29-2012 |
| 20120141673 | SANDWICH COMPOSITE ELEMENTS - A device for the application of foaming reaction mixtures to a substrate which makes it possible to apply that foaming reaction mixture uniformly, a process for the production of foaming reaction mixtures using this device, apparatus for producing composites which include the device of the present invention and composites produced using such apparatus are disclosed. Use of the device of the present invention to produce foams makes it possible to produce foams having improved surface quality at higher production rates than were previously possible. The device of the present invention is particularly useful for the production of sandwich composite elements. | 06-07-2012 |
| 20120213926 | METHOD FOR PRODUCING A FILTER ELEMENT HAVING A FILTER MEDIUM - The invention relates to a method for producing a filter element ( | 08-23-2012 |
| 20130122196 | COATING APPARATUS AND METHOD FOR FORMING A COATING LAYER ON MONOLITH SUBSTRATES - A coating apparatus includes modular interfaces and substrate receptors for accommodating various shapes and sizes of monolith substrates when coating layers are applied onto the monolith substrates. The monolith substrates are laterally surrounded by an elastically deformable sleeve that prevents lateral leakage of a vacuum out of the monolith substrate when a vacuum is applied to opposing ends of the monolith substrate, thereby eliminating needs for bulky vacuum chambers. The coating apparatus also includes valves and control apparatus that enable excess precursor liquid to be drained from monolith channels in-situ, without the use of additional spin-drying steps. Coating methods for using the coating apparatus are provided. | 05-16-2013 |
| 20130224378 | FORMATION AND IMMOBILIZATION OF SMALL PARTICLES BY USING POLYELECTROLYTE MULTILAYERS - A method for forming and immobilizing small particles on a filter substrate using a first and second polymer solution, a solution of sodium bromide and a solution of a metal salt. The method adjusts the pH of at least one of the first and second polymer solutions, immersing the filter substrate in the first polymer solution and immersing the filter substrate in the second polymer solution. The method includes repeating the steps of immersing the filter substrate in the first solution and the second solution alternately until desired number of layers is achieved. The method allows for the filter substrate to be immersed in the solution of the metal salt and subsequently in the solution of sodium bromide. | 08-29-2013 |
| 20130287946 | COMPOSITE POLYAMIDE MEMBRANE - A method for making a composite polyamide membrane including the steps of applying a polyfunctional amine monomer and polyfunctional acid halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is includes at least one of the following steps: i) conducting the interfacial polymerization in the presence of an additional monomer comprising an aromatic moiety at least one carboxylic acid functional group or salt thereof and a single amine-reactive functional group; and/or ii) applying such a monomer to the thin film polyamide layer. Many additional embodiments are described including applications for such membranes. | 10-31-2013 |
| 20140170313 | HIGH-PERFORMANCE FIBROUS PRODUCTS - The invention relates to formulations and methods for coating a fibrous web, comprising an emulsion capable of deposition on the fibrous web, the emulsion comprising an aqueous continuous phase and a discontinuous internal phase comprising a surface-modifying agent. The fibrous web may comprise a population of fibers that are pretreated with a pretreatment polymer, such as a polycationic polymer. The fibrous web may contain cellulose fibers, or two populations of dissimilar fibers. The surface-modifying agent may contain a polymeric system that forms a coating polymer on fibers of the fibrous web following evaporation of the aqueous continuous phase of the emulsion. | 06-19-2014 |
| 20140170314 | COMPOSITE POLYAMIDE MEMBRANE DERIVED FROM MONOMER INCLUDING AMINE-REACTIVE AND PHOSPHOROUS-CONTAINING FUNCTIONAL GROUPS - A method for making a composite polyamide membrane comprising the steps of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is includes at least one of the following steps: i) conducting the interfacial polymerization in the presence of a monomer comprising at least one phosphorous-containing functional group or salt thereof and an at least one amine-reactive functional group; and/or ii) applying such a monomer to the thin film polyamide layer. | 06-19-2014 |
| 20140199483 | COMPOSITE POLYAMIDE MEMBRANE INCLUDING TRI-HYDROCARBYL PHOSPHATE - A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method includes:
| 07-17-2014 |
| 20140220246 | Ultrafiltration Membranes and Methods of Making - The present invention is an integral multilayered composite membrane having at least one ultrafiltration layer made by cocasting or sequentially casting a plurality of polymer solutions onto a support to form a multilayered liquid sheet and immersing the sheet into a liquid coagulation bath to effect phase separation and form a multilayered composite membrane having at least one ultrafiltration layer. | 08-07-2014 |
| 20140272134 | COMPOSITE POLYAMIDE MEMBRANE DERIVED FROM CARBOXYLIC ACID CONTAINING ACYL HALIDE MONOMER - A method for making a composite polyamide membrane comprising the step of applying polyfunctional amine and acid halide monomers to a surface of a porous support and interfacially polymerizing the monomers to form a thin film polyamide layer. The method further includes the step of conducting the interfacial polymerization in the presence of: a carboxylic acid monomer comprising an aliphatic or aromatic moiety substituted with single carboxylic acid functional group and at least one acyl halide functional group, and a tri-hydrocarbyl compound. | 09-18-2014 |
| 20140295078 | COMPOSITE POLYAMIDE MEMBRANE DERIVED FROM AROMATIC MONOMER INCLUDING ANHYDRIDE AND SULFONYL HALIDE FUNCTIONAL GROUPS - A method for making a composite polyamide membrane including the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is characterized by: i) conducting the interfacial polymerization in the presence of an aromatic anhydride monomer include at least one sulfonyl halide functional group, or ii) applying the aromatic anhydride monomer to the thin film polyamide layer. | 10-02-2014 |
| 20140295079 | HYBRID NANOPARTICLE TFC MEMBRANES - Reverse osmosis membranes made by interfacial polymerization of a monomer in a nonpolar (e.g. organic) phase together with a monomer in a polar (e.g. aqueous) phase on a porous support membrane. Interfacial polymerization process is disclosed for preparing a highly permeable RO membrane, comprising: contacting on a porous support membrane, a) a first solution containing 1,3-diaminobenzene, and b) a second solution containing trimesoyl chloride, wherein at least one of solutions a) and b) contains nanoparticles when said solutions are first contacted, and recovering a highly permeable RO membrane. | 10-02-2014 |
| 20140356533 | APPARATUS FOR TREATING A WELLBORE SCREEN AND METHOD - An apparatus and methods for applying an inner coating to a wellbore screen are described. The apparatus comprises a support for the wellbore screen, an elongate injector for injecting coating material into the inner bore of the wellbore screen, and a driver for positioning the elongate injector into the inner bore and moving the elongate injector through the inner bore to introduce coating material to the inner bore. The elongate injector has a supported end, a distal end, and a coating material delivery line extending through the elongate injector from a coating material supply to a port at the distal end. | 12-04-2014 |
| 20140363572 | COMPOSITE MEMBRANE - A method of making a composite membrane comprising the steps of forming a discriminating layer upon a surface of a porous support by sequentially applying immiscible coating solutions upon the support, wherein one coating solution comprises a crosslinking agent and another coating solution comprises a block copolymer, and the block copolymer comprises sacrificial segments and durable segments including reactive pendent groups which react with the crosslinking agent and form a crosslinked matrix comprising micro-domains of the sacrificial segments, and removing at least a portion of the sacrificial segments to yield pores. | 12-11-2014 |
| 20140370191 | COMPOSITE POLYAMIDE MEMBRANE - A method for making a composite polyamide membrane including the steps of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is includes at least one of the following steps: i) conducting the interfacial polymerization in the presence of a subject monomer comprising at least one carboxylic acid group linked to an aromatic moiety and wherein the aromatic moiety is further substituted with at least one of an acyl halide or anhydride functional group and ii) applying the subject monomer to the thin film polyamide layer. The invention includes many additional embodiments. | 12-18-2014 |
| 20140377460 | COMPOSITE SEPARATION MEMBRANE - In order to obtain a composite separation membrane which has excellent chemical resistance, separation performance and water permeability at the same time, the present invention provides a composite separation membrane comprising a separation function layer on a porous supporting membrane, characterized in that the separation function layer contains at least a polymer of a polyhedral silsesquioxane represented by the following general formula (a) and a hydrophilic monomer. | 12-25-2014 |
| 20150044366 | RESILIENT ION EXCHANGE MEMBRANES PREPARED BY POLYMERIZING IONIC SURFACTANT MONOMERS - A method for making a resilient ion exchange membrane comprising polymerizing a composition containing at least an ionic surfactant monomer having an ethylenic group and a long hydrophobic alkyl group filling the pores of and covering the surfaces of a porous substrate. The hydrophobic long alkyl group in the ionic surfactant monomer provides ion exchange membranes with improved mechanical properties, and good chemical stability. | 02-12-2015 |
| 20150110957 | FILTRATION MATERIALS USING FIBER BLENDS THAT CONTAIN STRATEGICALLY SHAPED FIBERS AND/OR CHARGE CONTROL AGENTS - A filtration material comprising a blend of polypropylene and acrylic fibers of round, flat, dog bone, oval or kidney bean shape in any size from 0.08 to 3.3 Dtex. A preferred blend contains about 50 weight percent polypropylene fibers and about 50 weight percent acrylic fibers. The fibers can be blended ranging from 90:10 to 10:90 polypropylene to acrylic. The shape contains 25 weight percent round, flat, oval, dog bone and kidney bean shapes. The fiber blend contains 25 weight percent of at least one size between 0.08 and 3.3 Dtex. Electret fibers incorporated within these blends have 0.02 to 33 weight percent of a charge control agent. These fibers can be used in producing electret material by corona or triboelectric charging methods. | 04-23-2015 |
| 20150147470 | THIN FILM COMPOSITE MEMBRANE DERIVED FROM TETRA-FUNCTIONAL ACYL HALIDE MONOMER - A method for making a composite polyamide membrane including a porous support and a thin film polyamide layer, wherein the method includes the step of applying a polyfunctional amine monomer and a tetraacyl acyl halide monomer represented by Formula (I) to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer; wherein A is selected from: oxygen (—O—); carbon (—C—); silicon (—Si—); each of which may be unsubstituted or substituted, e.g. with alkyl groups of 1-4 carbon atoms; or a carbonyl group (—C(O)—), X is the same or different and is selected from a halogen, and Y is selected from halogen and hydroxide. | 05-28-2015 |
| 20150290674 | METHOD FOR TREATING FOAM - A method for treating foam is provided. The method includes providing a foam blank having a thickness, disposing an electrolyte within the foam blank, compressing the foam blank such that the thickness of the foam blank is reduced and drying the foam blank. The method may assist with providing thin electrolyte doped foam. | 10-15-2015 |
| 20150352594 | METHOD FOR SINGLE-STEP SPRAY APPLICATOIN OF A LINER FOR SYSTEM COMPONENTS - A single-step, spray-applied, multi-layer liner seals the components and imparts structural integrity for lining a system component. The multi-layer liner includes an inner or first moisture barrier or skin layer, a foam layer and a second moisture barrier or skin layer. Where desired, a separate primer layer can be applied to wet surfaces and in order to form an enhanced bonding layer between the system component, typically a concrete or cement surface, and the first moisture barrier or skin layer. The first and second moisture barrier layers naturally form a skin on both sides of the internal foam layer. The combination of the foam layer and the two moisture barrier layers imparts structural strength and rigidity to the cured liner. | 12-10-2015 |
| 20160023149 | METHOD OF MAKING A THIN FILTRATION MEDIA - A method for manufacturing a filtration media with improved filtration, strength, tear resistance and air permeability in the form of a relatively thin and lightweight wet-laid fibrous web that has a wet Mullen ratio of 20% to 90% to ensure that the media is flexible enough to be formed into a fluted structure, and strong enough to retain the fluted structure when would into a roll and to permit further processing. | 01-28-2016 |
| 20160045873 | Composite Polyamide Membrane Derived from an Aliphatic Acyclic Tertiary Amine Compound - A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method comprises the step of applying a polar solution including a polyfunctional amine monomer and non-polar solution including a polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is characterized by the step of applying a non-polar solution comprising an aliphatic acyclic tertiary amine compound to the support. | 02-18-2016 |
| 20160090329 | CELLULAR CERAMIC ARTICLE AND METHOD FOR MANUFACTURING THE SAME - A method and apparatus to treat a dried unfired article comprising a ceramic precursor composition substantially held together by a binder, to be resistant to binder soluble solvent based processing. The method includes depositing a fluid on the article surface, and polymerizing the deposited fluid to form a polymer thin layer on the surface. The fluid may be an aerosol, a vapor, a fog, a mist, a smoke, or combinations thereof. An apparatus to perform the method and an article resistant to binder soluble solvent based processing are also provided. The article can be an unfired honeycomb body that includes a dried composition of ceramic precursor substantially held together by a binder and a layer disposed on a surface of the unfired honeycomb body. The surface to be exposed in the green state to a binder soluble solvent and the layer protects the binder from solubilization by the solvent. | 03-31-2016 |
| 20160090653 | Method For Producing A Metal Foam And Method For Producing Particles Suitable For Said Method - A method for producing a metal foam includes depositing metal-containing particles and blowing-agent-containing particles by cold spraying. A layer formed in this manner is formed from metallic particles and particles containing blowing agent, wherein the blowing agent forms the core of coated particles. The shell of said particles is likewise metallic, such that it is easier to deposit said particles together with the metallic particles. Therefore, a higher concentration of blowing agent can advantageously be produced in the layer. Greater possibilities are advantageously produced thereby to provide the porous layers with required pore profiles. | 03-31-2016 |
| 20160130997 | METHOD FOR COATING CATALYST ON DIESEL PARTICULATE FILTER - A method for coating catalyst on a diesel particulate filter includes the steps of, preparing a filter main body by using a substance through which a plurality of pores are formed. coating firstly a reduction catalytic agent on the filter main body by immersing the filter main body into a wash coat solution containing the reduction catalytic agent. coating secondly the reduction catalytic agent on a region of the filter main body where a distribution of the firstly coated reduction catalytic agent is relatively low by providing absorption pressure to the other channel opposite to the selected one channel while supplying the wash coat solution containing the reduction catalytic agent to one channel that is selected from the inlet channel and the outlet channel of the filter main body that has been coated firstly. | 05-12-2016 |
