Patent application number | Description | Published |
20100328841 | WATER PURIFICATION DEVICE - Improved flow through capacitors (FTC) and methods for purifying aqueous solutions are disclosed. For example, FTC electrodes that are activated with a poly-electrolyte are disclosed. | 12-30-2010 |
20120103818 | METHOD FOR PREPARING A COATED CURRENT COLLECTOR, A COATED CURRENT COLLECTOR AND AN APPARATUS FOR DE-IONIZING WATER COMPRISING SUCH CURRENT COLLECTOR - Improved flow through capacitors and methods for purifying aqueous solutions. Despite recent developments, the capacity of the electrodes that are used in flow-through capacitor (FTC) stacks still demands improvement. It has been surprisingly found that at least one of these objects is met by FTC electrodes that are made with current collectors coated on both sides which are dried at a temperature range from 15° C. to 120° C. | 05-03-2012 |
20120125776 | APPARATUS AND METHOD FOR REMOVAL OF IONS - An apparatus to remove ions, the apparatus having a housing comprising a water inlet to let water in the housing, a water outlet to let water out of the housing, a first electrode comprising a first current collector, a second electrode, a spacer to separate the first and second electrodes and allow water to flow in between the first and second electrodes, and a metal connector connected to the first current collector, wherein multiple first current collectors are fed through the housing to connect to the metal connector outside the housing. | 05-24-2012 |
20120138470 | METHOD OF PRODUCING AN APPARATUS FOR REMOVAL OF IONS FROM WATER AND AN APPARATUS FOR REMOVAL OF IONS FROM WATER - A method of producing an apparatus for removal of ions from water. A stack of the apparatus may be manufactured by: providing a first electrode with a first current collector; providing a spacer on top of the first electrode; and providing a second electrode on top of the spacer. The first electrode may be connected with a first connector to a first power terminal and a pressure may be exerted on the stack so as to move the first and/or second electrodes. The first connector may allow movement of the first electrode with respect to the first power terminal. | 06-07-2012 |
20120217170 | APPARATUS AND METHOD FOR REMOVAL OF IONS - An apparatus to remove ions, the apparatus comprising an inlet to let water in the apparatus, an outlet to let water out of the apparatus, a capacitor, and a spacer to separate a first and a second electrode of the capacitor and to allow water to flow in between the electrodes. The apparatus comprises a regeneration mode controller configured to control, during a regeneration mode in which ions previously attracted to the capacitor are released in a waste water stream, one or more of: the electrical current flowing to the capacitor; the voltage on the capacitor; and/or the water flowing in between the electrodes. The regeneration mode controller is constructed and arranged to control one or more of the electrical current, the voltage, and/or the water flow during the regeneration mode such that scaling is reduced or minimized in the apparatus. | 08-30-2012 |
20130062208 | APPARATUS FOR REMOVAL OF IONS, BI-DIRECTIONAL POWER CONVERTER AND METHOD OF OPERATING AN APPARATUS FOR REMOVAL OF IONS - An apparatus to remove ions, the apparatus including an inlet to let water in the apparatus; an outlet to let water out of the apparatus; a capacitor; and a spacer to separate a first and a second electrode of the capacitor and to allow water to flow in between the electrodes. The apparatus further including a power converter configured to convert a supply voltage of a power source to a charging voltage to charge the capacitor. The power converter is constructed and arranged to recover energy from the capacitor by converting the voltage on the capacitor to supply voltage of the power source. | 03-14-2013 |
20130075260 | APPARATUS FOR REMOVAL OF IONS, AND A METHOD FOR REMOVAL OF IONS - An apparatus and a method to remove ions from water. The apparatus has a housing, an inlet to let water into the housing, an outlet to let water out of the housing, a first and second electrode connected to a power supply configured to create an electrical potential difference between the first and the second electrodes, and a spacer between the first and second electrodes to allow water to flow in between the first and second electrodes. The apparatus includes a velocity adjuster constructed and arranged to adjust a flow velocity of a first portion of the water flowing between the first and second electrodes with respect to a second portion of the water flowing between the first and second electrodes. | 03-28-2013 |
20130081949 | APPARATUS FOR REMOVAL OF IONS, AND A METHOD OF MANUFACTURING AN APPARATUS FOR REMOVAL OF IONS FROM WATER - An apparatus and a method to remove ions from water. The apparatus includes a housing, an inlet to let water into the housing, an outlet to let water out of the housing, a first and second electrode connected to a power supply configured to create an electrical potential difference between the first and the second electrodes, and a spacer between the first and second electrodes to allow water to flow in between the first and second electrodes, the spacer comprising a pillar structure. | 04-04-2013 |
20130092542 | APPARATUS AND METHOD FOR REMOVAL OF IONS - An apparatus to remove ions, the apparatus having a housing including an inlet to let water in an interior of the housing, an outlet to let water out of the interior of the housing, a first electrode having a current collector, a second electrode, and a spacer to separate the first and second electrodes and to allow water to flow between the first and second electrodes. The apparatus also has a connector to connect the first electrode, or the second electrode, or both first and second electrodes, with an electrical source. The connector may have two connector parts to clamp the current collector in between the connector parts, the connector constructed and arranged to avoid water-metal contact. | 04-18-2013 |
20130098766 | APPARATUS AND METHOD FOR REMOVAL OF IONS - An apparatus to remove ions, the apparatus including a capacitive electrode stack. The capacitive electrode stack has a first electrode that includes a first current collector, a second electrode, and a spacer between the first and second electrodes to allow water to flow in between the first and second electrodes. The apparatus has a connector to connect the current collector inside the housing with an electrical source outside the housing, and the connector includes a closing off portion to close an opening in the housing and to form a boundary for the water in the housing. | 04-25-2013 |
20130105406 | EVAPORATIVE RECIRCULATION COOLING WATER SYSTEM, METHOD OF OPERATING AN EVAPORATIVE RECIRCULATION COOLING WATER SYSTEM | 05-02-2013 |
20130146463 | APPARATUS AND METHOD FOR REMOVAL OF IONS - An apparatus and a method to remove ions from water is disclosed. The apparatus has a stack of at least five electrodes in a housing. The stack may have at least three master electrodes, each master electrode comprising a current collector connected to a power controller configured to apply an electrical potential difference. The apparatus is configured such that the electrical potential difference is applied between each two adjacent master electrodes. The stack may have at least two floating electrodes, each floating electrode located between at least two adjacent master electrodes. The apparatus is constructed to allow water to flow from an inlet of the housing to an outlet of the housing between at least two adjacent electrodes and at least one floating electrode may be constructed to attract ions from the water as a result of the electrical potential difference between at least two master electrodes. | 06-13-2013 |
20130153423 | APPARATUS AND METHOD FOR REMOVAL OF IONS - An apparatus and a method to remove ions from water are provided. The apparatus has at least three electrodes: at least two master electrodes, each master electrode including a current collector connected or connectable to a power supply configured to create an electrical potential difference between at least two master electrodes and at least one floating electrode located between at least two master electrodes. The apparatus is constructed to provide a potential difference between at least two master electrodes and to allow water containing ions to flow from an inlet to an outlet between at least two adjacent electrodes. The ions in the water are attracted to the master and floating electrodes by the potential difference and the at least one floating electrode has an ion barrier layer. | 06-20-2013 |
20130186761 | APPARATUS FOR REMOVAL OF IONS COMPRISING AN ION EXCHANGE MEMBRANE THAT COMPRISES A CROSSLINKED HYPERBRANCHED (CO)POLYMER (A CROSSLINKED HBP) WITH ION EXCHANGE GROUPS - An apparatus to remove ions, the apparatus including a housing, an inlet to let water into the housing, an outlet to let water out of the housing, a first electrode, a second electrode, a spacer between the first and second electrodes to allow water to flow between the first and second electrodes, and an ion exchange membrane between the first and/or second electrode and the spacer, wherein the membrane has a crosslinked hyperbranched polymer with ion exchange groups. | 07-25-2013 |
20130284601 | METHOD FOR PREPARING AN ANION EXCHANGE MEMBRANE WITH ION EXCHANGE GROUPS AND AN APPARATUS FOR REMOVAL OF IONS - A method of preparing an anion exchange membrane with anion exchange groups. The method includes polymerizing a first monomer with a functional group selected from the pyridine derivatives with a second monomer selected from the benzene derivatives, such as styrene, to form a copolymer. The copolymer may be crosslinked with a crosslinker. The functional group of the copolymer may be functionalized to an anion exchange group. | 10-31-2013 |
20140034501 | METHOD AND AN APPARATUS TO REMOVE IONS - A method of operating an apparatus to remove ions, the method including allowing water to flow in between a first and a second electrode of a capacitor, charging the capacitor with an electrical charge via a controller in order to attract ions into the electrodes; and releasing ions from the electrodes by releasing electrical charge from the capacitor via the controller. During a subsequent charging step, charging of the capacitor may be controlled with the controller by applying an electrical charge which does not substantially exceed a quantity of electrical charge released from the capacitor during the releasing of ions to keep the capacitor in balance. | 02-06-2014 |
20140048418 | APPARATUS FOR REMOVAL OF IONS COMPRISING MULTIPLE STACKS - An apparatus to remove ions from water. The apparatus may include a stack having a first electrode including a first current collector, a spacer on top of the first electrode, and a second electrode on top of the spacer. The stack may have a tray to hold and position the stack within a housing of the apparatus and thus may improve the manufacturability of the apparatus. | 02-20-2014 |
20140197102 | EVAPORATIVE RECIRCULATION COOLING WATER SYSTEM, METHOD OF OPERATING AN EVAPORATIVE RECIRCULATION COOLING WATER SYSTEM AND A METHOD OF OPERATING A WATER DEIONIZING SYSTEM - An evaporative recirculation cooling water system, the system having a recirculation loop to recirculate water through the system, a construction with a space to cool the water in the recirculation loop by evaporation, and a water entry point to allow water into the recirculation loop. The system has a charge barrier flow through capacitor constructed and arranged to remove ions from the water and a dosing system whereby a scale inhibitor is continuously dosed into the inlet flow into the flow through capacitor. | 07-17-2014 |
20140238862 | APPARATUS AND METHOD FOR REMOVAL OF IONS - An apparatus to remove ions including a plurality of capacitive electrode stacks. Each capacitive electrode stack may have: a plurality of first electrodes including a plurality of first current collectors; a plurality of second electrodes including a plurality of second current collectors; and a spacer between the first and second electrodes to allow water to flow in between the electrodes. The second current collectors of a first of the plurality of capacitive electrode stacks may be connected to the first current collectors of a second of the plurality of capacitive electrode stacks. | 08-28-2014 |
20140339099 | METHOD OF PRODUCING AN APPARATUS FOR REMOVAL OF IONS AND APPARATUS FOR REMOVAL OF IONS - A method of producing an apparatus to remove ions from water is disclosed, wherein the apparatus includes a first electrode having a first current collector, a second electrode having a second current collector, and a spacer between the first and second electrodes to allow water to flow in between the electrodes. The method includes flushing water through the spacer and subsequently exerting a force on the stack so as to compress the first and second electrodes and the spacer. Exerting a force on the stack may result in a pressure of less than 5 bar, less than 2 bar, or between 1 bar and 0.5 bar, between the electrodes and the spacer. | 11-20-2014 |
Patent application number | Description | Published |
20090149622 | Thermoplastic Polyurethane Containing Structural Units of Polyester and Polyether Diols - The present invention is a transparent thermoplastic polyurethane (TPU) comprising structural units of: a.) a diisocyanate; b.1) a polyester diol and b.2) a specific polyether diol and c.) a chain extender. The TPU has good combinations of light transmission and clarity, tensile strength, low temperature flexibility, and high moisture vapor transition rates compared to other commercial or known TPUs. A preferred example composition is a TPU that is based on MDI as the diisocyanate monomer, polycaprolactone as a polyester diol, an EO capped EO/PO polyether diol containing less than 20% EO, and butanediol as chain extender. These composition have good combinations of clarity, tensile strength, hydrolytic stability and processability compared to TPUs prepared using either polyester or polyether diols alone or the combination with a higher EO polyether diol. | 06-11-2009 |
20090197984 | Polymer polyols and polymer dispersions made from vegetable oil-based hydroxyl-containing materials - Polymer polyols and dispersions are prepared by polymerizing certain starting materials in a continuous phase. The continuous phase includes a polyol containing hydroxylmethyl groups, which is derived from a fatty acid. The dispersed phase may be, for example, a vinyl polymer, a polyurea or a polyurethane-urea. | 08-06-2009 |
20090264548 | Polyurethanes made from hydroxy-methyl containing fatty acids or alkyl esters of such fatty acids - Polyurethane polymers are made from a reaction mixture that contains a polyisocyanate, a hydroxylmethyl-containing fatty acid or ester, and another polyol, polyamine or aminoalcohol. The carboxylic acid or ester group on the hydroxymethyl-containing fatty acid or ester are capable of engaging in a variety of reactions with the polyisocyanate and/or amine or hydroxyl groups present in the reaction mixture. This allows for good quality, high molecular weight polymers to be produced even though the hydroxymethyl-containing fatty acid or ester tends to be a low functionality material. | 10-22-2009 |
20090281206 | COPOLYMER POLYOLS AND A PROCESS FOR THE PRODUCTION THEREOF - The present inventions disclosed copolymer polyol composition which have a polymer content of 40 to 75 weight percent, based on total weight, and product stability such that essentially 100 percent passes through a 150 mesh screen produced by a free radical polymerization of the composition comprising: (a) a feedstock polyol; (b) at least one ethylenically unsaturated monomer; (c) a free radical polymerization initiator; (d) a chain transfer agent; (e) optionally a preformed stabilizer; and (f) optionally a macromer; with the proviso that at least one of e) or f) is present; wherein the feedstock has a nominal average functionality of 1.5 to 2.7, an equivalent weight of 400 to 2000. Such copolymer polyols can be used for the production of polyurethane products. | 11-12-2009 |
20100286299 | NATURAL OIL BASED COPOLYMER POLYOLS AND POLYURETHANE PRODUCTS MADE THEREFROM - A polymer polyol composition of conventional petroleum-based polyols, natural oil derived polyols, PIPA and/or PHD particles made in the presence of natural oil derived polyols, and conventional petroleum-based polymer particles is provided. The polymer polyol composition may be used to form polyurethane foams. | 11-11-2010 |
20110213044 | Melt Dispersion Process for Making Polymer Polyols - Polystyrene is dispersed into a polyol via a mechanical dispersion process. A stabilizer is present to stabilize the dispersed polymer particles. The stabilizer includes a copolymer of (1) from 10 to 70% by weight of a branched polyol which has a molecular weight of from 4000 to 20,000, from 0.2 to about 1.2 polymerizable ethylenically unsaturated groups per molecule and from about 3 to about 8 hydroxyl groups per molecule with (2) from 30 to 90% by weight of styrene or a mixture of styrene and one or more other low molecular weight monomers. | 09-01-2011 |
20110218264 | MODIFIED NATURAL OILS AND PRODUCTS MADE THEREFROM - A modified natural oil made from reacting at least one natural oil or fat comprising at least one ene moiety with at least one of an enophile or dienophile mixture to form at least one modified natural oil, and reacting the at least one modified natural oil which may be used in a variety of processes. | 09-08-2011 |
20130035467 | HYBRID POLYESTER-POLYETHER POLYOLS - A process for preparing a hybrid polyester-polyether polyol comprises contacting a carboxyl group-containing component and an epoxide, optionally in the presence of one or more of a double metal cyanide catalyst, a superacid catalyst, a metal salt of a superacid catalyst and/or a tertiary amine catalyst, under conditions such that a hybrid polyester-polyether polyol is formed. The hybrid polyester-polyether polyol offers the advantages of both ester and ether functionalities when used in a polyurethane formulation, thus enhancing physical properties. The process results in products having narrow polydispersity, a low acid number and unsaturation, and reduced byproduct formation, particularly when the double metal cyanide catalyst is employed. | 02-07-2013 |
20140018459 | METHOD FOR PRODUCING SHORT-CHAIN POLYFUNCTIONAL POLYETHER POLYOLS UTILIZING SUPERACID AND DOUBLE-METAL CYANIDE CATALYSIS - A two stage alkoxlyation process for preparing a short-chain polyether polyol from a starter compound comprising from 3 to 9 hydroxyl groups and at least one alkylene oxide, wherein said starter compound has a hydroxy equivalent weight of from 22 to 90 Da. Said process comprises a first stage alkoxlyation using a superacid catalyst to prepare an oligomeric alkoxylated starter compound that is further alkoxylated to the short-chain polyether polyol of the invention in a second stage using a DMC catalyst. The process of the present invention may be performed continuously, in a batch, or semi-batch process. | 01-16-2014 |
20140058037 | Stabilizer Polymerization Process and Process for Making Polymer Polyols - A polymeric stabilizer is produced by copolymerizing an unsaturated polyether with an unsaturated low molecular weight monomer in a controlled radical polymerization. The polymeric stabilizer is useful for producing polymer polyol products via a mechanical dispersion process or an in situ polymerization process. | 02-27-2014 |
20140163197 | PROCESS FOR MAKING POLYETHER ALCOHOLS HAVING OXYETHYLENE UNITS BY POLYMERIZATION OF ETHYLENE CARBONATE IN THE PRESENCE OF DOUBLE METAL CYANIDE CATALYSTS - Ethylene carbonate is polymerized by itself or together with another cyclic monomer such as 1,2-propylene oxide in the presence of a double metal cyanide catalyst. Most of the ethylene carbonate adds to the chain to form a terminal carbonate group, which decarboxylates to produce a hydroxyethyl group at the end of the polymer chain. The polymerization of more ethylene carbonate onto the chain end results in the formation of poly(ethyleneoxy) units. Therefore, the process provides a method for making poly(ethyleneoxy) polymers without the need to polymerize ethylene oxide. The process is useful for making polyethers that are useful as water-absorbable polymers, surfactants and as raw materials for polyurethanes. The process is also useful for increasing the primary hydroxyl content of a polyether. | 06-12-2014 |
20140206787 | Polyfunctional Polyglycerine Initiated Polyether Polyols and High Resilience Polyurethane Slabstock Therefrom - A polyglycerine initiated polyether polyol exhibiting a final functionality less than the nominal functionalities of the polyol initiator wherein the initiator is a polyglycerine formed by the polymerization of glycerin having an HEW less than about 35 and exhibiting a nominal functionality between 2 and 16 is provided. Also provided is a process for producing a polyfunctional polyurethane by the reaction of a mixture containing a polyol based on polyglycerine initiator wherein between 5 wt % and 100 wt % of the total initiator is polyglycerine having a nominal functionality between 2 and 16, at least one organic isocyanate, an amine and/or a metal salt catalyst, and optionally a blowing agent. Also provided is a flexible polyurethane foam comprising a reaction product of a polyglycerine or formed by the glycidol polymerization of glycerin, at least one organic isocyanate, and an amine catalyst. | 07-24-2014 |