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5348929 |
Fuel absorbent
The invention relates to a process for producing a fuel absorbent, which comprises the steps of: dissolving an organic polymer having a function of trapping fuel in a solvent to produce a polymer...
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5330957 |
Composition for the absorption of pollutants
Composition for the absorption of pollutants, comprising at least a norbornene polymer for 100 parts by weight of norbornene polymer: said composition comprising 5 to 250 parts by weight of at...
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5314855 |
Adsorbent compositions and methods of manufacture
The present invention relates to non-resinous adsorbents and methods of manufacturing them. These agents have been found to neutralize or remove inhibitory and antimicrobial substances found in...
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5310497 |
Oxygen scavenging compositions for low temperature use
Improved compositions for scavenging oxygen are disclosed. These materials, characterized by low degree crystallinity and a glass transition temperature of <-10° C., have high oxygen scavenging...
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5308481 |
Chemically bound fullerenes to resin and silica supports and their use as stationary phases for chromatography
The present invention relates to buckminsterfullerenes or related condensed carbon molecules covalently bonded to a polymer particle or a siliceous support particle and their use for packing media...
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5306675 |
Method of producing crack-free activated carbon structures
A method of producing crack-free green activated carbon structures using a carbon matrix containing high gel strength binders such as methyl cellulose binders is disclosed. The invention also...
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5300246 |
Salty water absorbing composition, salty water ice pack, and salty water absorbing pack
A salty water absorbing composition, salty water ice packs, and salty water absorbing packs used to preserve freshness of meat, fresh fish and shells, vegetables and other watery food when they are...
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5294691 |
Copolymers of amphytic ion pairs containing vinylic tertiary amine and process therewith
A composition of a superabsorbent polymer and a process for using the polymer to absorb an aqueous electrolyte solution are disclosed. The composition comprises repeating units derived from: (a) an...
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5286827 |
Superabsorbent crosslinked copolymers formed from an ampholytic ion pair (2-methacryloyloxyethyldimethylammonium cation (MEDMA)/sulfonate anion) copolymerized with other comonomers
The present invention provides crosslinked ampholytic copolymers that are highly absorbent to aqueous electrolyte solutions. The polymers of the present invention comprise polymers formed by the...
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5284936 |
Polyamino acid superabsorbents
Substantially water-insoluble, crosslinked polypeptides containing 15 to 85 mole % of amino acid residues such as glutamic acid, aspartic acid, phosphoserine, phosphohomoserine, phosphotyrosine,...
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5277963 |
Filter sheet material
A filter material suitable for making protective clothing comprising an air-permeable pliable textile support, substantially spherical adsorber particles, and an adhesive discontinuously securing...
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5271833 |
Polymer-coated carbon-clad inorganic oxide particles
Polymer-coated carbon-clad inorganic oxide particles are disclosed which are useful in sorbent applications, particularly as packing materials for High Performance Liquid Chromatography (HPLC). A...
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5254516 |
Fluidizable zinc titanate materials with high chemical reactivity and attrition resistance
Highly durable and chemically reactive zinc titanate materials are prepared in a particle size range of 50 to 400 μm suitable for a fluidized-bed reactor for removing reduced sulfur species in a...
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5240602 |
Chromatographic material
Chromatographic material having the general formula S-B-X-Y-L where S is a solid support, B is a binding group, X is a substantially non-ionic hydrophilic organic spacer, Y is a coupling group and...
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5240601 |
Affinity supports for hemoperfusion
A method of coating chromatographic particulate supports to provide a biocompatible outer layer of synthetic membrane-type film which prevents the release of fines but permits the adsorption of...
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5217505 |
Carbonaceous adsorbents for prevention of carbon bed fires
A process for removing an oxidizable organic compound from an oxidizing gas stream which includes contacting the gas stream with a bed of carbonaceous adsorbent particles, wherein the adsorbent...
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5211993 |
Method of making novel separation media
Method of chromatographically separating a mixture by contacting said mixture under chromatographic separation conditions with a chromatographic separation stationary phase comprising a polymer...
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5206205 |
Thermal treatment of superabsorbents to enhance their rate of absorbency under load
The absorbent capacity of superabsorbent materials, as measured under an applied load, is significantly increased by treating the superabsorbent material at a temperature of about 125° C. or...
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5203991 |
Packing material for liquid chromatography
A packing material for liquid chromatography bears a polyalkylene polyamine moiety linked through a spacer moiety as the pendant group to a porous silica gel coated with a silicone polymer, and...
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5186838 |
Chromatographic packing material having functionalized polymeric coating on a substrate
A method of separating organic materials is disclosed utilizing a chromatographic packing material. This packing material includes a coated support material which is a chromatographically suitable...
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5185313 |
Adsorbent for metal ions, proteins and other inorganic and organic substances
The invention relates to an adsorbent agent with special advantages to heavy metals, proteins, etc. and is based upon a ligand with an atom sequence (A): N--C--C n --N, wherein n is 1 or 2, and...
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5180704 |
Oil sorption with surface-modified rubber
A method for sorbing oil comprises contacting the oil with an oil sorbing article comprising a plurality of substantially cross-linked polymer particles having adhesive layers formed on a portion...
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5167822 |
Butadiene acrylonitrile polymeric coating for chromatographic packing material
A method of separating organic materials is disclosed utilizing a chromatographic packing material. This packing material includes a coated support material which is a chromatographically suitable...
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5154822 |
Bonded chromatographic stationary phase
An organic compound is bonded to a powdered solid support to produce, for example, a chromatographic stationary phase, by introducing to a bed of powdered material the vapor of a precursor of the...
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5153166 |
Chromatographic stationary supports
Methods for modifying polyhydroxylated materials by the direct covalent bonding of nucleophilic ligands to the former sites of hydroxyl groups on the material are disclosed. More specifically,...
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5139981 |
Process for preparing silver(I)-exchanged resins
This invention relates to a method for removing halides from liquid carboxylic acid contaminated with a halide impurity by contacting the liquid halide-contaminated acid with a silver(I)-exchanged...
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5137627 |
Deactivated supports for liquid chromatographic separation of silanophiles
Silica gel chromatographic supports surface-modified with (R 1 O) 3 -m Si R 2 m (CH 2 ) 3 NH(CH 2 CH 2 NH) n H, in which R 1 is a C 1 -C 5 alkyl, R 2 is methyl or ethyl, and m and n are...
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5135649 |
Column packing material with both hydrophobic and hydrophilic groups and process for production thereof
A column packing material comprising a porous support coated with a silicone polymer having an Si--R bond, wherein R is a hydrocarbon group having 1 to 18 carbon atoms, and an Si--R' bond, wherein...
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5135904 |
Adsorbent composition for malodorous gases
A zinc oxide-hydroxide complex produced by heating freshly prepared zinc hydroxide at a temperature from about 150° C. to about 450° C. is useful as an adsorbent for malodorous gases such as...
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5126309 |
Decontamination of toxic chemical agents
A process of decontaminating a surface contaminated with a toxic chemical agent in which there is applied to the contaminated surface, a macroporous cross-linked hydrophobic copolymer containing an...
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5114577 |
Composite separating agent
A composite separating agent which comprises a hydrophilic polymer separating agent showing a degree of swelling in water of 10 to 100 ml/g-dry and having a giant network structure incorporated...
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5112796 |
Manganese dioxide impregnated filter
A foraminous filter useful for removing particulates from a gas being flowed therethrough having impregnated therein a manganese dioxide absorbent active for removal of Total Reduced Sulfur...
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5110784 |
Dual surface porous material
Porous materials having a dual surface are disclosed. Also disclosed is a method for their preparation. An example of such a material is silica gel reacted with...
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5096593 |
Separation material derived from glucomannan for blood coagulation factor, preparation and use thereof
The separation material for separating and recovering a blood coagulation factor comprises a porous matrix having linked thereon one or more ligands each consisting of a radical exhibiting an...
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5094830 |
Process for removal of water and silicon mu-oxides from chlorosilanes
A scavenger composition having utility for removal of water and silicon mu-oxide impurities from chlorosilanes, such scavenger composition comprising: (a) a support; and (b) associated with...
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5094995 |
Supported perfluorinated ion-exchange polymers
A catalyst composition comprising a perfluorinated ion-exchange polymer containing sulfonic acid groups supported on an inert carrier having a hydrophobic surface with a mean pore diameter of at...
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5087359 |
Quaternized PEI silica solid supports for chromatography
Quaternized non-crosslinked polyethyleneimine silica based solid supports are useful strong anion exchangers for column chromatography separation and purification of proteins and have high binding...
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5066405 |
Method for absorbing petroleum based products
A method for absorbing oils and petroleum based products, having a buoyant, anti-static foam pad impregnated with a hydrophobic amorphous silicate.
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5057242 |
Composition, process, and apparatus, for removal of water and silicon mu-oxides from chlorosilanes
A scavenger composition having utility for removal of water and silicon mu-oxide impurities from chlorosilanes, such scavenger composition comprising: (a) a support; and (b) associated with...
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5055194 |
Support for high performance liquid chromatography in a magnetically stabilized fluidized bed
A method of, and an apparatus for, conducting chromatographic separations of multi-component systems utilizing silica-coated, magnetically susceptible particles in an MSFB is disclosed. A support...
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5051185 |
Absorbent of β.sub.2 -microglobulin
An adsorbent for β 2 -microglobulin is disclosed, which comprises a water-insoluble carrier having supported thereon, as a ligand, at least one electrolyte selected from the group consisting of a...
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5045190 |
Chromatography apparatus
A chromatography apparatus incorporating an improved means for connecting the ligand to the solid support is disclosed. The apparatus comprises a chamber containing a solid support. The solid...
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5037795 |
Chromatographic packing material comprising extended area metal oxide/hydroxide particles with a layer of a phosphorus-containing material thereon
A chromatographic packing material is disclosed which comprises generally spherical metal oxide/hydroxide support particles comprising crystals extending radially outward from a central core region...
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5037624 |
Composition, apparatus, and process, for sorption of gaseous compounds of group II-VII elements
Scavenger compositions are disclosed, which have utility for effecting the sorptive removal of hazardous gases containing Group II-VII elements of the Periodic Table, such as are widely encountered...
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5030591 |
Hydrocarbon absorbing compositions
A composition containing a particulate, absorbent solid and particles of a rapid-dissolving, high molecular weight polymer in admixture is used to soak up and hold hydrocarbons and other organic...
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5028339 |
Polymer matrix and method for retaining reactants in a polymer matrix
A method for holding a reactant in a polymer includes combining reactant, hydrogel monomer and a quenching surrogate in a solvent, whereby the solvation of the reactant and the monomer is reduced....
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4999330 |
High-density adsorbent and method of producing same
The invention is concerned with a high-density adsorbent comprising a compacted mass of high surface area carbon particles bound together with a binder and defining a network of substantially...
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4999385 |
Carbonaceous foams
A flame-retardant polymeric foam which comprises a carbonaceous irreversibly heat set, cellular polymer derived from a stabilized polyacrylonitrile based foam.
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4997804 |
Low density, resorcinol-formaldehyde aerogels
The polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer "Clusters". The covalent crosslinking of these "clusters"...
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4986908 |
Organic-based porous microspheres for HPLC
Porous organic microspheres for use in HPLC are formed by coacervating a colloidal silica sol in a uniform mixture of the sol and a polymerizable organic material. The silica particles which formed...
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