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8173713 Filled nanoporous polymer membrane composites for protective clothing and methods for making them  
A new class of membranes for use in protective clothing. More specifically, the present invention relates to a polymer-polymer membrane with an ionic polymer located within the nanopores of a...
8124660 Polymer electrolyte membrane comprising coordination polymer  
A polymer electrolyte membrane is made from a polymer electrolyte and a coordination polymer, and finds use in a fuel cell. The polymer electrolyte membrane may be made by dissolving a polymer...
8088833 Method for purifying an IgG monomer  
To provide a separating agent for IgG purification, whereby IgG can be separated and purified efficiently at a high purity, and a method for purifying an IgG using it. A separating agent for IgG...
8058319 Process to prepare fluoropolymer dispersions and membranes  
Described is a process to prepare fluoropolymer organic-liquid dispersions containing a homogeneous mixture of reacted and unreacted sulfonyl halide groups. The dispersions are useful in the...
7967148 Method for grading water-absorbent polymer particles  
A process for classifying water-absorbing polymer beads, wherein screens having different mesh sizes are used before and after the postcrosslinking to remove the oversize.
7947748 Method for producing polymer beads of uniform size  
A method for preparing monodisperse crosslinked bead polymers by introducing droplets having a harmonic mean size from 50 to 1500 microns and comprising at least one monomer, at least one...
7893118 Compositions containing particles of highly fluorinated ion exchange polymer  
Solid and liquid compositions containing particles of highly fluorinated ion-exchange polymer having sulfonate functional groups with an ion exchange ratio of less than about 33. The compositions...
7838155 Aqueous electrolyte solution absorber and method for producing it  
The present invention relates to an aqueous electrolyte solution absorber including an aqueous electrolyte solution absorbent polymer obtained by introducing a hydrophilic polar group to a water...
7714028 Compositions containing particles of highly fluorinated ion exchange polymer  
Solid and liquid compositions containing particles of highly fluorinated ion-exchange polymer having sulfonate functional groups with an ion exchange ratio of less than about 33. The compositions...
7683100 Method of making macroporous cation exchange resins  
Methods of making macroporous cation exchange resins are described. The macroporous cation exchange resins are in the form of particles such as beads that contain a hydrophilic, crosslinked,...
7674835 Method of making macroporous anion exchange resins  
Methods of making macroporous anion exchange resins are described. The macroporous anion exchange resins are in the form of particles such as beads that contain a hydrophilic, crosslinked,...
7625955 Porous polymeric article  
A porous article which is formed from a polymeric material, in which characteristics of the surface of the article provided by the polymeric material are modified by having grafted to it chains of...
7589129 Method of modifying polyacrylates for obtaining high molecular polymers  
The present invention relates to the field of acrylic polymers and in particular to their modification with the purpose of the formation of compounds of still higher molecular masses. Plastic...
7540962 Method of preparing spheroid polymer particles having a narrow size distribution by dispersion polymerization, particles obtainable by the method and use of these particles  
The invention relates to a method of preparing spheroid polymer particles having a narrow size distribution by dispersion polymerization. This method comprises the steps of: providing a two-phase...
7435498 Polymer electrolyte membranes crosslinked by nitrile trimerization  
A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, by...
7326737 Polymer electrolyte membranes crosslinked by direct fluorination  
A method is provided for making a crosslinked polymer by direct fluorination of a non-perfluorinated polymer comprising first pendent groups which comprise sulfonyl halide groups or by direct...
7323109 Composition comprising metal-ion sequestrant  
This invention relates to a composition of matter comprising a functionalized mordant polymer comprising a cationic polymer having an adsorbed metal-ion sequestrant, wherein the metal-ion...
7294654 Method of making thermally regenerable salt sorbent resins  
A heterogenous hybrid thermally regenerable salt sorbent resin is formed from a hybrid precursor resin. The hybrid precursor resin is formed by intimately mixing a dry, solid crosslinked...
7265159 Monodisperse anion exchangers  
Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.
7169822 Polymeric actuator  
A polymeric actuator of simple structure, capable of being easily miniaturized, showing quick response and capable of generating large displacement. The polymeric actuator includes an ion-exchange...
7166645 Process for the alkaline saponification of crosslinked acrylonitrile bead polymers  
The alkaline saponification of acrylonitrile bead polymers provides weakly acidic cation exchangers with little intrinsic color and with reduced residual nitrogen content if the saponification is...
7166685 Compositions containing particles of highly fluorinated ion exchange polymer  
Solid and liquid compositions containing particles of highly fluorinated ion-exchange polymer having sulfonate functional groups with an ion exchange ratio of less than about 33. The compositions...
7112614 Crosslinked polymer  
A method is provided for obtaining crosslinked polymers, particularly fluorinated polymers having pendent sulfonic acid groups, by crosslinking through pendent groups which include a sulfonyl...
7098253 Macroporous ion exchange resins  
Ion exchange resins are described that are hydrophilic, crosslinked (meth)acrylic copolymers. The ion exchange resins are macroporous, have a surface area of at least 50 m2/g, and an average...
7094469 Porous or non-porous substrate coated with an immobilized polymeric composition having sulfonyl groups and hydrophilic functional groups and process  
A porous or non-porous polymeric substrate having its surface modified with an immobilized fluorocarbon such as perfluorocarbon, polymeric composition is provided. The immobilized fluorocarbon is...
7045057 Preparation of homogeneously loaded ion exchangers  
A process for preparing an ion-exchangeable media within a moving-bed or simulated moving-bed device, which can create a true or simulated media flow, comprising the steps of packing the bed with...
7037949 Ion-exchange resin membrane and method for producing the same  
A reactive liquid is coated on an ion exchange resin precursor membrane for the hydrolysis treatment. Preferably, a reactive liquid having a viscosity of not lower than 50 mPa·s or a small surface ...
7022744 Ion exchanger for lipoproteins separation and lipoproteins separation method using the same  
A composition useful for separating lipoproteins, such as high density lipoprotein (HDL), low density lipoprotein (LDL), very low density lipoprotein (VLDL) and modified lipoproteins with a high...
7001929 Proton conductive membrane having improved thermal stability  
The invention provides a proton conductive membrane excellent in heat resistance, which has sulfonic acid as ion exchange groups. The proton conductive membrane comprises a nitrogen-containing...
6984669 Fluorinated cation exchange membrane and electrolytic soda process  
The present invention provides a fluorinated cation exchange membrane comprising at least two layers, a first layer made of a fluoropolymer having sulfonic acid groups and a second layer made of a...
6924317 Process for producing coarse-particle anion-exchanger gels  
The present invention relates to a process for producing monodisperse anion-exchanger gels with high stability, purity and coarse particle size greater than 800 μm starting from a monodisperse ...
6919382 Preparation and uses of conjugated solid supports for boronic acids  
The invention provides novel solid supports comprising dihydroxyalkyl aminoalkyl and dihydroxyalkylaminobenzyl groups, and methods for making and using them. The supports are particularly useful...
6878409 Method for producing silver salt-containing facilitated transport membrane for olefin separation having improved stability  
The present invention relates to polymer membranes for separating olefins from paraffins which have the similar molecular size and close boiling point. More particularly, it relates to a silver...
6844371 Material having separating function  
An object of the present invention is to provide a separation functional material having more excellent adsorptive separation performance than previously. In order to attain this object, separation...
6844372 Crosslinked anion-exchange resin or salt thereof and phosphorus adsorbent comprising the same  
An cross-linked anion exchange resin or a salt thereof obtained by reacting a polymer (A) having amino and/or imino groups in the total number of two or more per molecule with a compound (B) having...
6821418 Surface modification of a porous polymer monolith and products therefrom  
A process is provided for modifying a porous polystyrene monolith to render its internal pore surfaces grafted with alkyl groups, preferably of at least four carbon atoms, which includes the step...
6765027 Ion-exchange materials with improved ion conductivity  
Ion-exchange materials comprising a polymeric backbone and a plurality of pendent styrenic or fluoridated styrenic macromonomers covalently bonded thereto, wherein the plurality of pendent styrenic...
6740684 Process for producing a strong-acid cation exchange resin  
A strong-acid cation exchange resin in acid form is contacted with an alkylcarhamoyl alkylthioester in the presence of water for producing a strong-acid cation exchange resin comprising a plurality...
6723758 Graft polymeric membranes and ion-exchange membranes formed therefrom  
Graft polymeric membranes and methods for making graft polymeric membranes have one or more trifluorovinyl aromatic monomers that are radiation graft polymerized to a polymeric base film. The...
6706771 Silver salt-containing facilitated transport membrane for olefin separation having improved stability and method for producing the same  
The present invention relates to polymer membranes for separating olefins from paraffins which have the similar molecular size and close boiling point. More particularly, it relates to a silver...
6696503 Process for preparing crosslinked ion exchangers based on unsaturated aliphatic nitriles  
The present invention relates to a process for preparing crosslinked ion exchangers with a homogeneous network structure based on unsaturated aliphatic nitriles in the presence of film-forming...
6667349 Method for producing osmotically and mechanically stable gel-like anion exchangers  
The present invention relates to a process for preparing gel-like anion exchangers by aminating crosslinked gel-like styrene divinybenzene bead polymers that contain halogenoalkyl groups in the...
6582811 Method of and material for purification of physical liquids of organism, and method of producing the material  
A method of purification of physiological liquids of organism has the step of passing a physiological liquid through a material which has a size, a shape, and a structure selected so as to remove...
6569910 Ion exchange resins and methods of making the same  
Ion exchange resin granules containing a crosslinked polymerized α,β-unsaturated acid, like acrylic acid, or a vinyl monomer containing an amino group, like polyvinylamine, and methods of m...
6569911 Manufacturing method and article produced by the method  
A method of manufacturing a support media from a cross-linked polymerisate based on vinyl compounds, and exhibiting residual vinyl groups. The characteristic feature of the method is that the...
6531519 Antimicrobial synthetic ion exchange resins  
A method of preventing the growth of heterotrophic bacteria and the subsequent establishment of a biofilm on the surface and in the micropores of an antimicrobial synthetic ion exchange resin. An...
6465580 Functional polymers with carbon-linked functional groups  
A functional polymer having active and stable functional groups, for separation or reactive processes in chemical manufacture or analysis, has carbon-linked functional groups on dimethylene...
6432314 Anion exchange materials and processes  
Anion exchange material surfaces are provided with zwitterionic and cationic groups, preferably by coating with a polymer formed from monomers including a zwitterionic monomer, a cationic monomer...
6420439 Crosslinked, non-swellable ampholytic base resins  
Described are non-swelling, crosslinked, bead forms of ampholytic base polymers that can be utilized in the chromatographic-type separation of acids from other compounds. Preferred polymers are...
6410656 Cation exchangers or chelating agents and process for the preparation thereof  
A cation exchanger or a chelating agent having at least structural units represented by the following formula (I), the structural units being derived from a crosslinkable monomer containing an...
Matches 1 - 50 out of 329 1 2 3 4 5 6 7 >