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7550539 |
Partially neutralized chlorosulfonated polyolefin elastomers
At least partially neutralized chlorosulfonated ethylene/alpha-olefin elastomers containing 0.5-10 weight percent chlorine and 0.25 to 5 weight percent sulfur are prepared from...
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7550538 |
Chlorosulfonated propylene/olefin elastomers
Chlorosulfonated propylene/olefin elastomers containing 0.5-55 weight percent chlorine and 0.15 to 5 weight percent sulfur are prepared from metallocene catalyzed propylene/olefin copolymer base...
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7407561 |
Use of water-soluble crosslinked cationic polymers for controlling deposition of pitch and stickies in papermaking
The present invention relates to a method for controlling pitch and stickies deposit in a pulp and papermaking process using crosslinked cationic polymers made by controlled addition of a water...
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7361711 |
Compositions for use in golf balls
A golf ball including a core and at least one layer disposed about the core, wherein the core or the layer is formed from a composition including a base polymer, a crosslink initiator, and an...
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7312281 |
Anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity
An anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity comprising the steps of polymerization, purification, transesterification, purification, catalyst...
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7307127 |
Highly sulfonated block copolymer hydrogels and uses thereof
A block copolymer composition AB is provided that has pendent groups —RZ extending from the A copolymer on at least 70 mol % of the A monomers, where R and Z are each an ionic species. The...
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7273908 |
Chlorosulphonated ethylene-α-olefin copolymer and method for producing the same
A chlorosulphonated ethylene-α-olefin copolymer having a chlorine content of 0.5-20% by weight and a glass transition temperature in differential scanning calorimetry (DSC) of −50° C. or lower...
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7267923 |
Resist composition and patterning process
Resist compositions comprising as the base resin a polymer having alkoxyisobutoxy as a reactive group which is decomposable under the action of an acid to increase solubility in alkali have...
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7258904 |
Absorber and method for producing it
According to the present invention, a water absorbent material and materials to be sucked included in a water permeable bag type member form a water absorber. Thus, the water absorber is small both...
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7205369 |
High molecular weight cationic polymers obtained by post-polymerization crosslinking reaction
The molecular weight of cationic polymers, such as diallyldialkyl ammonium chloride, can be increased by controlled addition of a water-soluble radical initiator at an elevated reaction temperature...
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7176175 |
Cleansing processing agent, cleansing method employing the agent and a molded structural member
A cleansing processing agent that is able to remove harmful substances contained in a variety of waste materials and a cleansing method are disclosed. Specifically, there is disclosed a cleansing...
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7160928 |
Acid functional fluoropolymer membranes and method of manufacture
Methods are provided to make acid functional fluoropolymers by: a) dehydrofluorinating a starting fluoropolymer with a dehydrofluorinating agent to form an unsaturated fluoropolymer; b) adding an...
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7160927 |
Sulfonated aryl sulfonate matrices and method of production
Porous matrices and membrane matrices comprising sulfonated aryl sulfonate polymers are prepared from a sulfonated aryl sulfonate polymer solution which is made by dissolving an aryl sulfonate...
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7141626 |
Fiberglass non-woven catalyst
The present invention relates to novel catalysts for use with a fiberglass non-woven binder. The catalyst can be a Lewis acid, an organic acid salt, a free-radical generator, or a mixture thereof....
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7125953 |
Ion-conducting polymeric materials
A method of preparing an ion-conducting polymeric material, for example, for a fuel cell, in a desired form (hereinafter “said formed polymeric material”), comprises: (i) selecting a first...
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7119151 |
Antimicrobial agent and production process thereof
An antimicrobial agent utilizes a resin having acrylonitrile and styrene and/or a conjugated diene as units. The antimicrobial agent includes a metal-salt-containing copolymer, and the...
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7101938 |
Method for forming fluorinated ionomers
This invention concerns a method for forming ionomers by treatment with ammonium carbonate of copolymers having a substantially fluorinated, but not perfluorinated, polyethylene backbone having...
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7037981 |
High molecular weight flocculant
A high-molecular flocculant rendered water-soluble by conversion of cyano groups contained in a high-molecular material, a method for producing the flocculant, and a method for efficiently...
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6977102 |
Absorber and method of manufacturing the absorber
According to the present invention, a water absorbent material and materials to be sucked included in a water permeable bag type member form a water absorber. Thus, the water absorber is small both...
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6969743 |
Method for utilizing sulfuric acid/peroxide liquid mixture
A technique of utilizing a sulfuric acid/peroxide liquid mixture, for example, its waste liquid material, is to be developed so that the waste liquid can be re-utilized and effectively applied to...
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6930154 |
Method for producing a high-molecular weight flocculant
A high-molecular flocculant rendered water-soluble by conversion of cyano groups contained in a high-molecular material, a method for producing the flocculant, and a method for efficiently...
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6875821 |
Process for production of partially protected poly(hydroxystyrene)s
A process for making poly(hydroxystyrene)s whose phenolic hydroxyl groups are partially protected by acid-decomposable or -eliminable groups, by which the degree of deblocking of the phenolic...
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6867264 |
Process for removing residual silicon species from hydrocarbon solvents
Removing silicon species from hydrocarbon solvents such as cyclohexane. The process comprises contacting the hydrocarbon solvent with sulfuric acid in an amount sufficient to phase separate the...
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6828353 |
Ion-exchange polymers
Ion-Exchange polymers for a polymer electrolyte membrane include a moiety of formula (I), and/or a moiety of formula (II), and/or a moiety of formula (III) wherein at least some of the units I, II...
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6784213 |
Method for preparation of strong acid cation exchange resins
An improved process for preparing strong acid cation exchange resins by sulfonation of wet crosslinked copolymer in the absence of organic swelling solvents is disclosed. This process involves...
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6777502 |
Rheology modification of polymers prepared using metallocenes
Coupled polymers are prepared by a process comprising heating an admixture containing (1) at least one polyolefin comprising ethylene and optionally at least one comonomer and (2) a coupling amount...
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6774164 |
Process for producing fluoroelastomers with fluorinated anionic surfactants
A novel emulsion polymerization process for the production of fluoroelastomers is disclosed wherein a partially fluorinated anionic surfactant of the formula F—(CF 2 CF 2 ) n —CH 2 CH 2 SO 3 M,...
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6759483 |
Preparation of homo-, co- and terpolymers of substituted styrenes
A novel one-pot cost efficient process for the preparation of homo-, co- and terpolymers of p-hydroxystyrene or substituted p-hydroxystyrene and alkyl acrylates. The process involves polymerization...
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6727323 |
Process for reducing odor emission in aqueous polymer dispersions and in polymer powders
A process for reducing odor emission in aqueous polymer dispersions and in polymer powders comprises admixing an aqueous dispersion of a polymer obtained by free-radical polymerization of one or...
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6723757 |
Engineering ionomeric blends and engineering ionomeric blend membranes
The present invention relates to novel compatible binary and ternary cation-exchanger polymer and anion-exchanger polymer blend membranes.
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6713567 |
Method for forming fluorinated ionomers
This invention concerns a method for forming ionomers by treatment with ammonium carbonate of copolymers having a substantially fluorinated, but not perfluorinated, polyethylene backbone having...
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6696519 |
Redox process for preparing emulsion polymer having low residual monomer content
A process for preparing an aqueous emulsion polymer including providing at least one ethylenically unsaturated monomer and a free radical redox initiator system under emulsion polymerization...
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6673847 |
Water immiscible porogen removal process
The present invention relates to a method of removing water immiscible porogens from macroreticular copolymers comprising distilling said porogen in water soluble organic solvent.
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6664340 |
Sulphonated polymer resin and preparation thereof
The invention relates to sulphonated polymer resins, particularly polymer resins with a sulphonated shell layer, and the preparation thereof. Resins according to the invention are prepared by...
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6639022 |
Process for the preparation of superabsorbent polymers from polyacrylonitriles
A process for the preparation of superabsorbent polymers by alkaline hydrolysis of polyacrylonitrile emulsions is disclosed. In an embodiment of the invention the process comprise preparing a PAN...
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6610791 |
Photosensitive compound and photosensitive resin
The invention provides a photosensitive compound which can be used to prepare a photosensitive resin, and a photosensitive resin obtained from the compound. The compound has a moiety represented by...
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6579948 |
Self-assembled sulfonated block copolymer semipermeable membrane and uses therefor
A semipermeable membrane that is capable of remaining flexible at a temperature of at least −60° C. is selective to liquid penetrants depending on the size and polarity of the penetrants, and...
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6573336 |
Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment
Sulfonated styrene polymer and/or its salt, a waste water treatment material and sludge dehydrating agent each containing the sulfonated styrene polymer and/or its salt as an effective component...
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6559237 |
Sulfonated perfluorocyclobutane ion-conducting membranes
Disclosed are sulfonated aromatic perfluorocyclobutane polymers meeting a condition selected from: a) the equivalent weight of the polymer is 5000 or less, and b) the proton conductivity of the...
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6547710 |
Sulfonated rubber compositions and processes therefor and therewith
A sulfonated, oxidized rubber composition and a neutralized, sulfonated, oxidized rubber composition are provided. The sulfonated, oxidized rubber composition, preferably a composition containing...
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6541572 |
Method of making high refractive index ophthalmic device materials
Disclosed is a two-step method of making soft, high refractive index, acrylic ophthalmic device materials. In the first step, a copolymer containing pendant oxirane groups is formed by...
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6506848 |
Rheology modification of elastomers
The present invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one elastomer comprising ethylene and at least one comonomer which is...
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6479595 |
Plasma treatment of polymer materials for increased dyeability
Hydrophobic polymer materials having improved dyeability with water-based dyes are prepared by treating a hydrophobic polymer with aglow discharge plasma generated from working gases selected from...
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6476152 |
Method of preparation of products which absorb water intermolecularly
A method of crosslinking polystyrene polymers and co-polymers for the formation of macroreticular materials of an Mc 30,000 to 50,000 is described. The materials forming an insoluble gel which is...
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6472479 |
Sulfonated bead polymers prepared from styrene, vinylpyridines, and crosslinkers
The invention relates to sulfonated bead polymers prepared from styrene, vinylpyridines, further monomers, and crosslinkers, to a process for preparing them, and to their use as cation exchangers.
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6462143 |
Gel-free process for making functionalized anionically polymerized polymers
This invention relates to a gel-free process for making functionalized polymers. When multi-alkali metal initiators are used to make these polymers anionically, the process comprises anionically...
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6462138 |
Method for reducing residual monomers in liquid systems by adding an oxidation-reduction initiator system
A process is described for reducing the residual monomer content in a liquid solution, mixture, melt, suspension or dispersion of a polymer by postpolymerization with addition of a redox initiator...
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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...
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6417288 |
Method of manufacturing polyelectrolyte
A method of manufacturing a polyelectrolyte having the step of sulfonating polystyrene resin in a state where the polystyrene resin has been dissolved or dispersed in solvent composed of alicyclic...
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6380349 |
Golf equipment and compositions comprising sulfonated, carboxylated, or phosphonated ionomers
The present invention relates to golf equipment, such as golf shoes, golf clubs, golf gloves, or portions thereof, formed from compositions comprising a sulfonated, carboxylated, or phosphonated...
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