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| Number | Title | Issue Date |
| 8097695 | Methods for the formation of hydrogels using thiosulfonate compositions and uses thereof The present invention provides both crosslinked polymer compositions capable of forming hydrogels upon exposure to an aqueous environment and thiosulfonate hydrogel-forming components. The thiosulfonate hydrogel-forming components of the invention are preferably mul... | 01/17/2012 |
| 8026339 | Polysulfone, electrolyte membrane using the same, and fuel cell using the electrolyte membrane A polysulfone is provided with a nitrogen-containing functional group having an affinity to an acid, an electrolyte membrane using the polysulfone, and a fuel cell including the electrolyte membrane. In particular, the polysulfone includes a nitrogen-containing func... | 09/27/2011 |
| 7884175 | Method for controlling the molecular weight during poly(arylene vinylene) synthesis, and polymers produced therewith The present invention relates to a process in which addition of certain bis(methyl)aryl compounds which have a further substituent other than hydrogen and on which at least one of the two methyl groups bears a leaving group, the molecular weight in the synthesis of ... | 02/08/2011 |
| 7879971 | Multiblock copolymer, method of preparing the same, polymer electrolyte membrane prepared from the multiblock copolymer, method of preparing the polymer electrolyte membrane, and fuel cell employing the polymer electrolyte membrane A multiblock copolymer includes a polysulfone repeating unit, a sulfonated polysulfone repeating unit, a polydialkylsiloxane repeating unit and an ethylenic unsaturated group at a terminal of the multiblock copolymer. Also provided are a method of preparing the mult... | 02/01/2011 |
| 7834134 | Polyarylethers, blends and methods for making A method for making a polyarylether block copolymer having amide functionality including reacting a dihydroxyaromatic compound having amide functionality and a dihaloaromatic sulfone or dinitroaromatic sulfone in the presence of a base to form a polyarylether having... | 11/16/2010 |
| 7790837 | Ion-conducting sulfonated polymeric materials Sulfonated polymers are made by the direct polymerization of a sulfonated monomer to form the sulfonated polymers. The types of sulfonated polymers may include polysulfones or polyimides. The sulfonated polymers can be formed into membranes that may be used in proto... | 09/07/2010 |
| 7759453 | Multiblock copolymer, method of preparing the same, polymer electrolyte membrane prepared from the multiblock copolymer, method of preparing the polymer electrolyte membrane, and fuel cell employing the polymer electrolyte membrane A multiblock copolymer includes a polysulfone repeating unit, a sulfonated polysulfone repeating unit and an ethylenic unsaturated group at a terminal of the multiblock copolymer. Also provided are a method of preparing the multiblock copolymer, a polymer electrolyt... | 07/20/2010 |
| 7662909 | Polysulfone compositions exhibiting very low color and high light transmittance properties and articles made therefrom A polysulfone composition is provided having a total luminous light transmittance of 84% or greater when measured on 0.1 inch thick specimens using ASTM D-1003. The specimens also meet at least one of the following two conditions: 1) a yellowness index (YI) of less ... | 02/16/2010 |
| 7645856 | Ether nitrile co-polymers containing sulfonic acid groups for PEM application Ether nitrile co-polymers containing sulfonic acid groups, including wholly aromatic poly(aryl ether ether nitrile)s containing sulfonic acid groups (SPAEEN)s, and poly(phthalazinone ether ketone nitrile) co-polymers containing sulfonic acid groups (SPPEKN)s, intend... | 01/12/2010 |
| 7598338 | Methods for the formation of hydrogels using thiosulfonate compositions and uses thereof The present invention provides both crosslinked polymer compositions capable of forming hydrogels upon exposure to an aqueous environment and thiosulfonate hydrogel-forming components. The thiosulfonate hydrogel-forming components of the invention are preferably mul... | 10/06/2009 |
| 7557178 | Process for producing electrolyte material for polymer electrolyte fuel cells, and membrane-electrode assembly for polymer electrolyte fuel cells A membrane-electrode assembly for polymer electrolyte fuel cells which is excellent in water repellency and gas diffusivity and which exhibits a high output power density, can be obtained by using, as an electrolyte material for polymer electrolyte fuel cells, a flu... | 07/07/2009 |
| 7547756 | Benzimidazole-containing sulfonated polyethersulfones Sulfonated polyethersulfones and polymer compositions comprising sulfonated polyethersulfones and at least one inorganic heteropolyacid are useful as proton exchange membranes for fuel cells. The polyethersulfones include structural units derived from at least one b... | 06/16/2009 |
| 7544764 | Sulfonated polymer composition for forming fuel cell electrodes A membrane electrode assembly for a fuel cell is described. The materials for the membrane electrode assembly are formed from sulfonated polymers. A polymer dispersion ink containing the sulfonated polymer and a mixture of solvents is used to form the electrodes on ... | 06/09/2009 |
| 7456248 | Polyarylethersulfone compositions exhibiting reduced yellowness and high light transmittance properties and articles made therefrom A polyarylethersulfone polymer composition comprising a polyarylethersulfone having reduced yellowness and high light transmittance is provided. The composition includes an organic phosphorous-containing compound and at least one of the following two additives: a co... | 11/25/2008 |
| 7423110 | Polysulfone compositions exhibiting very low color and high light transmittance properties and articles made therefrom A polysulfone composition is provided having a total luminous light transmittance of 84% or greater when measured on 0.1 inch thick specimens using ASTM D-1003. The specimens also meet at least one of the following two conditions: 1) a yellowness index (YI) of less ... | 09/09/2008 |
| 7393914 | Polyethersulfone compositions Novel polyethersulfone compositions have been discovered which incorporate structural subunits derived from sulfonated bis(halophenyl)sulfones, dihydroxy terphenyls, and/or bis(hydroxyphenyl)pyridines. The sulfonated polyethersulfones show promise as materials for u... | 07/01/2008 |
| 7375176 | Liquid crystal poly(phenylene sulfonic acids) A rigid, rod liquid crystal polymer includes a poly(phenylene sulfonic acid). ... | 05/20/2008 |
| 7368086 | Functionalized fluorescent nanocrystals, and methods for their preparation and use Functionalized fluorescent nanocrystal compositions and methods for making and using these compositions are disclosed. The compositions are fluorescent nanocrystals coated with at least one material. The coating material has chemical compounds or ligands with functi... | 05/06/2008 |
| 7361729 | Ion-conducting sulfonated polymeric materials Sulfonated polymers are made by the direct polymerization of a sulfonated monomer to form the sulfonated polymers. The types of sulfonated polymers may include polysulfones or polyimides. The sulfonated polymers can be formed into membranes that may be used in proto... | 04/22/2008 |
| 7358327 | Assembled hematin, method for forming same and method for polymerizing aromatic monomers using same An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hem... | 04/15/2008 |
| 7354531 | Polymer electrolyte composition A composition for use as a polymer electrolyte, wherein said composition includes one or more polar materials and one or more polyesters of formula III, wherein each unit A may be identical or different and is of the struct... | 04/08/2008 |
| 7351775 | Ion conductive membrane made from a block copolymer and methods of making a block copolymer A block copolymer for use as a solid polymer electrolyte, said block copolymer having at least first and second segments, the first segments being hydrophilic segments provided with acidic substituents for proton transport and the second segments being hydrophobic s... | 04/01/2008 |
| 7344751 | Assembled hematin, method for forming same and method for polymerizing aromatic monomers using same An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hem... | 03/18/2008 |
| 7321828 | System of components for preparing oligonucleotides Interative, preferably computer based iterative processes for generating synthetic compounds with desired physical, chemical and/or bioactive properties, i.e., active compounds, are provided. During iterations of the processes, a target nucleic acid sequence is prov... | 01/22/2008 |
| 7315042 | Semiconductors containing trans-1,2-bis(acenyl)ethylene compounds Semiconductor devices are described that include a semiconductor layer that contains a trans-1,2-bis(acenyl)ethylene compound. The acenyl group is selected from 2-naphtyl, 2-anthracenyl, or 2-tetracenyl. Additionally, methods of making semiconductor devices are desc... | 01/01/2008 |
| 7312301 | Methods for the formation of hydrogels using thiosulfonate compositions and uses thereof The present invention provides both crosslinked polymer compositions capable of forming hydrogel upon exposure to an aqueous environment and thiosulfonate hydrogel-forming components. The thiosulfonate hydrogel-forming components of the invention are preferably mult... | 12/25/2007 |
| 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 |
| 7273919 | High heat polyethersulfone compositions High heat polyethersulfone compositions are provided which possess unexpectedly high glass transition temperatures. The polyethersulfone compositions comprise structural units derived from phthalimide bisphenols such as 3,3-bis(4 -hydroxyphenyl)-N-phenylphthalimide,... | 09/25/2007 |
| 7265198 | Sulfonated polyarylenethioethersulfone polymer and copolymer compositions A sulfonated polyarylenethioethersulfone polymer and copolymer. The sulfonated polyarylenethioethersulfone polymer and copolymer comprises the reaction product of an aromatic dihalo functionality sulfonated monomer, an aromatic dithiol monomer, and optionally an aro... | 09/04/2007 |
| 7264925 | Method for analysis of oligonucleotide analogs Disclosed are methods for separating, detecting, quantitating and/or isolating predominantly uncharged oligonucleotide analogs, by resolving duplexes of such molecules with complementary or near-complementary DNA or charged DNA analogs. The DNA or charged analog may... | 09/04/2007 |
| 7262265 | High temperature thermoset compositions A new family of high temperature thermoset resins having high glass transition temperatures and enhanced hygrothermal stability that are synthesized using inexpensive starting materials in essentially a single step process. A trifunctional aromatic, wherein at least... | 08/28/2007 |
| 7261875 | Dendritic poly (amino acid) carriers and methods of use The present invention concerns a design for dendritic poly(amino acid) polymer carriers, also known as nonlinear polymers, and their applications. These dendritic poly(amino acid) carriers have multiple functional groups at the polymer surface. In addition, they hav... | 08/28/2007 |
| 7259228 | Method of preparing derivatives of polyarylene vinylene and method of preparing an electronic device including same A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to ob... | 08/21/2007 |
| 7229604 | Ethylenedicysteine (EC)-drug conjugates, compositions and methods for tissue specific disease imaging The invention provides, in a general sense, a new labeling strategy employing 99mTc chelated with ethylenedicysteine (EC). EC is conjugated with a variety of ligands and chelated to 99mTc for use as an imaging agent for tissue-specific diseases... | 06/12/2007 |
| 7223380 | Ethylenedicysteine (EC)-drug conjugates, compositions and methods for tissue specific disease imaging The invention provides, in a general sense, a new labeling strategy employing 99mTc chelated with ethylenedicysteine (EC). EC is conjugated with a variety of ligands and chelated to 99mTc for use as an imaging agent for tissue-specific diseases... | 05/29/2007 |
| 7208567 | Polymer compound and polymer light emitting device using the same Provided is a polymer compound having a polystyrene reduced number average molecular weight of 103-108, and comprising a repeating unit represented by the below formula (1-1) or (1-2), wherein Rin... | 04/24/2007 |
| 7205035 | Thermoset composition, method, and article A curable composition includes a functionalized poly(arylene ether), an alkenyl aromatic monomer, an acryloyl monomer, and a polymeric additive selected from polystyrene, poly(styrene-maleic anhydride), poly(styrene-methyl methacrylate), polybutene, poly(ethylene-bu... | 04/17/2007 |
| 7202327 | Oligomers and polymers containing sulfonite groups and method for the production thereof The invention relates to novel polymers or oligomers containing at least sulfonite groups (P-(SO2)nX, X=1−(n=1), 2−(n=2) or 3−(n=3) valent metal cation or H+ or ammonium ion NR4+ wherein R=alkyl, aryl, H),... | 04/10/2007 |
| 7199213 | Thermoset composition, method for the preparation thereof, and articles prepared therefrom A curable composition includes a poly(arylene ether) and a fused alicyclic (meth)acrylate monomer. Also described are a method of preparing the composition, a cured composition derived from the curable composition, and an article comprising the cured composition. Th... | 04/03/2007 |
| 7192744 | Targeted transfection of cells using a biotinylated dendrimer The present invention relates to processes for the targeted transfection of cells, compositions which may be used for such processes, and corresponding pharmaceutical compositions for gene therapy. In particular, the invention relates to a process for introducing nu... | 03/20/2007 |
