Patent classifications
B01J20/264
Absorbent cores comprising a superabsorbent polymer immobilizing material
Described herein is an absorbent article having an absorbent core. The absorbent core includes a superabsorbent polymer material and a superabsorbent polymer immobilizing material. The superabsorbent polymer immobilizing material includes from about 20% to about 70% of a first polymer and from about 30% to about 80% of a second polymer. The superabsorbent polymer immobilizing material has a Shear Viscosity at 10 (1/s) at 230° C. of from about 300 mPa.Math.s to about 10,000 mPa.Math.s.
Bisphenol-S containing mannich polycondensation product
Crosslinked polymers made up of polymerized units of cyclic diaminoalkane, aldehyde and bisphenol-S or melamine. A method for removing heavy metals, such as Pb(II) from an aqueous solution or an industrial wastewater sample with these crosslinked polymers is introduced. A process of synthesizing the crosslinked polymers is also described.
CARBON DIOXIDE CAPTURE PROCESS USING HYDROGELS
The present application is directed to processes for removing carbon dioxide (CO.sub.2) from low CO.sub.2 concentration gaseous streams. The process comprises contacting the gaseous stream with a hydrogel for absorbing at least some CO.sub.2 from the gaseous stream. The hydrogel comprises a cross-linked hydrophilic polymer comprising a hydrophilic polymer cross-linked with a cross-linking agent. Processes for preparing the hydrogel, types of hydrogels, using the hydrogel to remove CO.sub.2 from gaseous streams, and regenerating the hydrogel to recover absorbed CO.sub.2 from the hydrogel are also disclosed.
Water harvesting device
A water harvesting device includes at least a first adsorption column including a first inlet, a first outlet, and a first interior region. A sorbent material is located within the first interior region of the first adsorption column. The sorbent material includes a metal organic framework (MOF) material including a plurality of metal ions or clusters of metal ions coordinated to one or more organic linkers, a plurality of nanofabrics comprising a hydrogel material, or a combination thereof.
ATMOSPHERIC WATER HARVESTING SYSTEM
Disclosed herein are improved soils for use in agriculture and other fields. The improved soils include atmospheric water harvesting networks which more efficiently hydrate the soil, reducing the need for external water inputs in germination and growth stages.
Horticulture Additive
This invention relates to a horticulture additive comprising: (1) a wetting agent, wherein the wetting agent is a multi-branched polymer comprising at least one of an oxygen-containing and a nitrogen-containing polyfunctional base compound having at least three branches attached thereto, and (2) a humectant. The horticulture additive is advantageous for increasing plant survival of plants treated therewith when exposed to reduced watering conditions.
IMPROVEMENTS IN LIQUID CHROMATOGRAPHY SUBSTRATES
A method for producing a porous copolymer monolith substrate for use in flow through liquid chromatography applications is disclosed. The method comprises forming a reaction composition comprising at least one monoethylenically unsaturated aryl monomer, at least one polyethylenically unsaturated aryl monomer, a RAFT agent, at least one liquid porogen, and a radical initiator. The reaction composition is introduced to a mold having a shape and dimensions suitable for forming a liquid chromatography substrate. The monoethylenically unsaturated aryl monomer, the polyethylenically unsaturated aryl monomer and the RAFT agent are copolymerised in the mold under conditions to form a solid copolymer network that is phase-separated from the reaction composition and/or any liquid components.
Super-adsorbing porous thermo-responsive desiccants
Thermo-responsive hydrogel composite (TRHC) desiccants having high adsorption capacities, fast adsorption/desorption rates, and low regeneration temperatures (T.sub.reg) compared to traditional desiccants. TRHC desiccants may be synthesized by freeze drying. The porous structures resulting from freeze drying copolymers of thermo-responsive polymers and/or hygroscopic agents may be combined with hygroscopic inorganic salts, resulting in TRHC desiccants having superior performance properties.
METHOD FOR PRODUCING WATER-ABSORBENT RESIN PARTICLES AND WATER-ABSORBENT RESIN PARTICLES
A first embodiment of a method for producing water-absorbent resin particles includes a polymerization step of polymerizing a monomer on at least a part of a surface of a surface-crosslinked polymer particle to obtain a polymer. A second embodiment of a method for producing water-absorbent resin particles includes a polymerization step of polymerizing a monomer on at least a part of a surface of a non-surface-crosslinked polymer particle in the presence of a crosslinking agent to obtain a polymer.
Method for manufacturing porous particles, porous particles, carrier, column, and method for separating target substance
To provide a porous particle with which non-specific adsorption is hardly generated although the porous particle is a synthetic polymer-based particle, the mechanical strength is high, and the dynamic binding capacity is high in a case where a ligand is bound to the porous particle; and a method for producing the same. A method for producing a porous particle, including the following steps 1 and 2; (step 1) dissolving at least one or more of polymers selected from the group consisting of a vinyl alcohol polymer and an ethylene-vinyl alcohol copolymer in an aqueous solvent to prepare a polymer solution; and (step 2) dispersing the polymer solution in a non-aqueous solvent to form a W/O emulsion.