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| Number | Title | Issue Date |
| 8143371 | Preparation of polytrimethylene ether glycol or copolymers thereof This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof having a number-average molecular weight of at least about 250 g/mole by a polycondensation reaction using at least one acid catalyst. ... | 03/27/2012 |
| 7906614 | Polymer catalyst deactivation and acid neutralization using ionomers A process for deactivating an active catalyst species in an olefin polymer stream exiting a polymerization reactor and neutralizing catalyst residues comprising adding to the olefin polymer stream in a quantity at least sufficient to inactivate the catalyst species ... | 03/15/2011 |
| 7902324 | Initiator An initiator for cationic polymerization comprises a salt of a protic acid as well as a protic acid. The molar ratio of protic acid to salt is in the range from 1:0.01 to 1:2000. The initiator is used for example for cationic homo- or copolymerization of trioxane, a... | 03/08/2011 |
| 7687601 | Methods for purifying polymers using solid scavengers Conductive polymers are purified using a solid scavenger. The solid scavengers include metal-scavenging functional groups linked to the surface of a particle support material. To improve the functionalization of the support material, the support materials are first ... | 03/30/2010 |
| 7507786 | Decolorization of oligomers Methods of producing decolorized homo- and co-polymers through polymerization of monomers in presence of cobalt-complexed tetraphenyl porphyrin derivatives and decolorization of the produced polymer by exposing the polymer to a sorbent and, optionally, a solvent are... | 03/24/2009 |
| 7459519 | Method for manufacturing electrically conductive macromolecules and solid state electrolytic capacitor using electrically conductive macromolecules The method for manufacturing electrically conductive macromolecules of the present invention is provided by reacting at least a monomer and an oxidizing agent to obtain electrically conductive macromolecules by a chemical polymerization method, the method including ... | 12/02/2008 |
| 7414100 | Polymerization process This invention relates to a process to increase the amount of polymer solute in a polymerization medium or effluent comprising introducing a fluorocarbon into the polymerization medium or effluent in an amount effective to increase the amount of polymer solute in th... | 08/19/2008 |
| 7390440 | Process for producing metal-containing particles having their surface coated with at least two dispersants different in vaporization temperature To provide metal-containing fine particles having good dispersion stability, which have their surface coated with dispersants vaporizable even during firing at low temperatures, a fine particle dispersion having the above metal-containing fine particles dispersed th... | 06/24/2008 |
| 7371808 | Polymer treating method and apparatus A polymer treating method has the steps of: reacting a polymer compound with a reaction agent in a reaction vessel to generate a polymer treatment product; discharging the polymer treatment product containing the reaction agent from the reaction vessel; depressurizi... | 05/13/2008 |
| 7365152 | Method for producing highly reactive, low halogen polyisobutenes A process is described for preparing polyisobutene having a low halogen content, in which isobutene is polymerized in the presence of a catalyst which comprises a halogenated Lewis acid, the catalyst is removed and/or deactivated, and the resulting polyisobutene is ... | 04/29/2008 |
| 7365146 | Substituted polyphenylenes via supported transition metal catalysis Substituted polyphenylenes and methods for producing such substituted polyphenylenes using supported transition metal catalysis are provided. ... | 04/29/2008 |
| 7351779 | Polymerization process and reactor system A process for polymerizing one or more monomers is provided. In at least one specific embodiment, the process includes preparing a mixture comprising the one or more monomers, a catalyst system and a fluorinated hydrocarbon, preferably a hydrofluorocarbon. A fluorin... | 04/01/2008 |
| 7342079 | Polymerization process and reactor system This invention is directed to processes for making polymer in the presence of a hydrofluorocarbon, and for the recovery of polymer substantially free of dissolved hydrocarbons and hydrofluorocarbons. The processes provided enables polymerization processes to be prac... | 03/11/2008 |
| 7332223 | Polymers comprising thieno [3,4-b]thiophene and methods of making and using the same This invention presents polymers and copolymers comprising repeating units of thieno[3,4-b]thiophene. Water-borne dispersions of such polymers and copolymers can be cast by conventional methods to provide uniform, thin films which possess utility in numerous electro... | 02/19/2008 |
| 7323519 | Process for producing vinyl polymer, vinyl polymer, and curable composition The present invention provides: a process for preparing a vinyl polymer containing a halogen in an amount of 1,000 mg or less per kilogram, in which a vinyl polymer containing the halogen produced by atom transfer radical polymerization of a vinyl monomer is heated ... | 01/29/2008 |
| 7309758 | Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The... | 12/18/2007 |
| 7307138 | Polymer electrolytes and process for their preparation A sulfonated aromatic polyether ketone of the formula (II) [Ar—O—Ar′—CO—Ar′—O—Ar—CO—Ar″—CO—] (II) in which from 1% to 100% of the O-phenylene-CO units are substituted with an SO3M group and sulfonated an... | 12/11/2007 |
| 7303652 | Reduced byproduct high solids polyamine-epihalohydrin compositions A process for rendering a polyamine-epihalohydrin resin storage stable, is described. The process entails treating a polyamine-epihalohydrin resin composition, where the resin is formed in a reaction having a molar ratio of epihalohydrin to secondary amine group of ... | 12/04/2007 |
| 7276574 | Process for producing vinyl polymer The present invention provides a method for producing a vinyl polymer including the steps of polymerizing a vinyl monomer by atom transfer radical polymerization with a transition metal complex as a polymerization catalyst, and bringing the resultant vinyl polymer i... | 10/02/2007 |
| 7270694 | Stabilized silver nanoparticles and their use A process comprising: reacting a silver compound with a reducing agent comprising a hydrazine compound in the presence of a thermally removable stabilizer in a reaction mixture comprising the silver compound, the reducing agent, the stabilizer, and an optional solve... | 09/18/2007 |
| 7252768 | Method for eliminating metal halides that are present in a liquid or gaseous, organic or non-organic effluent The invention relates to a method for eliminating metal halides which are present in a liquid or gaseous, organic or non-organic effluent. According to the invention, the elimination is carried out by absorption of said metal halides on alumina agglomerates. The inv... | 08/07/2007 |
| 7247699 | Process for purification of crude polyether and adsorbent A process for purifying a crude polyether, comprising contacting a crude polyether obtained by addition polymerizing an active hydrogen-containing compound with an alkylene oxide compound in the presence of an alkali metal-containing basic catalyst to an adsorbent c... | 07/24/2007 |
| 7238624 | System and method for manufacturing semiconductor devices using a vacuum chamber The present disclosure relates generally to the manufacturing of semiconductor devices, and more particularly to semiconductor manufacturing using a vacuum chamber. In one example, a method for semiconductor manufacturing includes: providing a photoresist layer for ... | 07/03/2007 |
| 7226636 | Gold-coated nanoparticles for use in biotechnology applications A process of preparing gold-coated magnetic nanoparticles is disclosed and includes forming a suspension of magnetic nanoparticles within a suitable liquid, adding an amount of a reducible gold compound and a reducing agent to the suspension, and, maintaining the su... | 06/05/2007 |
| 7195835 | Proton conducting membrane for fuel cells An ion conducting membrane comprising dendrimeric polymers covalently linked into a network structure. The dendrimeric polymers have acid functional terminal groups and may be covalently linked via linking compounds, cross-coupling reactions, or copolymerization rea... | 03/27/2007 |
| 7189779 | Process for trapping residual monomer with an epoxide functional group in a thermoplastic composition The invention relates to a process for trapping a free monomer which has not reacted by copolymerization or by grafting comprising at least one epoxide functional group in a thermoplastic composition based on ethylene and/or on propylene and based on at least one mo... | 03/13/2007 |
| 7186794 | Polymer treating method and apparatus A polymer treating method has the steps of: reacting a polymer compound with a reaction agent in a reaction vessel to generate a polymer treatment product; discharging the polymer treatment product containing the reaction agent from the reaction vessel; depressurizi... | 03/06/2007 |
| 7183372 | Preparation of ketone-formaldehyde resins A process for preparing ketone-formaldehyde resins, especially acetophenone- and cyclohexanone-formaldehyde resins, having a low water content and high thermal stability and yellowing resistance, and a process for their production and their use. ... | 02/27/2007 |
| 7175740 | Reduced by product polyamine-epihalohydrin resins Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be tre... | 02/13/2007 |
| 7141646 | Method of purifying vinyl polymer The present invention provides a method of purifying a vinyl polymer to be used as a component of a composition capable of undergoing hydrosilylation. The present invention provides a vinyl polymers obtainable by atom transfer radical polymerization can be pu... | 11/28/2006 |
| 7138485 | Method for removing metal ions from polymers or polymer solutions The invention relates to a simple, economical and reliable method for removing catalytic residues from polymer solutions. According to the inventive method, the copper content is reduced to a non-disturbing concentration level. ... | 11/21/2006 |
| 7129322 | Method for producing polymer alloy polymer alloy formed article transparent formed article and optical film This invention provides a method for producing a polymer alloy, a polymer alloy as well as a molded article, a transparent molded article and an optical film, which is obtainable by using the polymer alloy. The invention is a method for producing a polymer al... | 10/31/2006 |
| 7119047 | Modified activated carbon for capacitor electrodes and method of fabrication thereof A novel electrode and method of making the same. The electrode includes activated carbon that has been modified by treatment with an alkali solution and an acid, such as nitric acid, and then washed and dried. The carbon may then be annealed. The method of modifying... | 10/10/2006 |
| 7116209 | Strain gauges The present invention provides a strain gauge comprising a resistive layer. The resistive layer comprises metallic or semiconducting nanoparticles or aggregates thereof in which the nanoparticles or aggregates thereof are separated by insulating and/or semiconductin... | 10/03/2006 |
| 7087710 | Polymeric surfactants derived from cyclic monomers having pendant fluorinated carbon groups A fluorine containing polymer which acts as a wetting, flow or leveling agent, and has at least one polar group. The polymer has at least one pendant or ether side chain containing from about 1 to about 20 carbon atoms with at least 25% of the hydrogen atoms being r... | 08/08/2006 |
| 7074887 | Chemical synthesis of chiral conducting polymers An process of forming a chiral conducting polymer, e.g., polyaniline, is provided including reacting a monomer, e.g., an aniline monomer, in the presence of a chiral dopant acid to produce a first reaction mixture by addition of a solution including a first portion ... | 07/11/2006 |
| 7074338 | Filtering method and filtering device Using the filter auxiliary agent separated by backwashing from a filter element repeatedly and effectively, the consumption amount of a filter auxiliary agent and the generation of industrial waste can be suppressed. In a filter auxiliary agent pre-coat circuit, a f... | 07/11/2006 |
| 7071289 | Polymers comprising thieno [3,4-b]thiophene and methods of making and using the same This invention presents polymers and copolymers comprising repeating units of thieno[3,4-b]thiophene. Water-borne dispersions of such polymers and copolymers can be cast by conventional methods to provide uniform, thin films which possess utility in numerous electro... | 07/04/2006 |
| 7064178 | Soluble self-orienting materials and conductive polymer compositions having the same The present invention relates to an electrically conductive polymer, and more particularly to an additive for enhancing electrical conductivity of the polymer and electrically conductive polymer composition containing the additive. The present invention provides a s... | 06/20/2006 |
| 7060201 | Optical brighteners their composition their production and their use Optical brighteners (PAB) of formula wherein each n independently signifies 1 or 2, the group SO3M shown with the floating bond is linked ... | 06/13/2006 |
