This invention relates generally to zeolites and polymer compositions with zeolites having enhanced adsorption capacity for adsorption of water, ammonia and other similar compounds. The invention is directed particularly to aluminosilicate zeolites, and methods for preparing zeolite entrained polymer compositions having enhanced water adsorption properties. This invention relates also to improved packaging materials with enhanced water adsorption properties incorporating the polymer compositions containing zeolites.

A sorbent cartridge for use in a portable wearable renal therapy system, and a method of using same is provided. The sorbent cartridge comprises: a inlet and an outlet, the inlet configured to receive process fluid from renal therapy device and the outlet configured to discharge treated process fluid; a hydrogel configured to absorb and adsorb a toxin from the process fluid without use of a dialysate to purify the process fluid. The inlet and the outlet are each configured to releasably couple to the renal therapy device for removing the sorbent cartridge.

Water-absorbent resin particles having a degree of gel association of 15 or more are disclosed.

Water-absorbent resin particles 10a, in which a gel flow rate measured by the following procedures having (1) to (3) is 10 to 70 g/min: (1) mixing 1 part by mass of the water-absorbent resin particles and 199 parts by mass of water to obtain a gel, (2) accommodating the gel in a funnel in a state where a circular lower end opening with a diameter of 8 mm in the funnel is closed, and (3) measuring an outflow amount of the gel per unit time after a lapse of 3 minutes from opening of the lower end opening as the gel flow rate.

Disclosed are water-absorbent resin particles having a gel outflow test force measured by the following method of 5 to 14 N. The measuring method for gel outflow test force includes: producing a swollen gel by allowing the water-absorbent resin particles to absorb 29 times as amount of physiological saline as the water-absorbent resin particles under stirring; evenly putting 20 g of the swollen gel in a cylinder with an inner diameter of 5 cm and having a hole with a diameter of 5 mm at a bottom part, compressing the swollen gel in the cylinder at a rate of 10 mm/min with a jig with a diameter of 4.9 cm, thereby recording a test force at a time point when a part of the swollen gel flows out from the hole at the bottom part of the cylinder, as the gel outflow test force.

Water-absorbent resin particles 10a having a gel surface elasticity measured by the following (1) to (5) is 0.35 to 2.00 N: (1) preparing a gel of the water-absorbent resin particles, (2) bringing a jig into contact with the gel, (3) performing an operation of pressing the jig into the gel and thereafter pulling the jig back to obtain a maximum value and a minimum value of loads applied to the jig during the operation, (4) repeating twice an operation of pressing the jig into the gel and thereafter pulling the jig back to obtain a maximum value and a minimum value of loads applied to the jig during each of operations, and (5) obtaining an average value of maximum values obtained in (3) and (4) and an average value of minimum values obtained in (3) and (4) to obtain a difference between these values as the gel surface elasticity.

An anaesthetic halocarbon capture system is provided. The system includes a pressure-intolerant sleeve containing filter material for capturing one or more types of anaesthetic halocarbon prior to supercritical fluid extraction, and a pressure-tolerant housing into which the sleeve can be inserted so as to permit exposure of the sleeve contents to pressures required for supercritical fluid extraction.

A process for producing superabsorbents, comprising polymerization of a monomer solution and thermal surface postcrosslinking, wherein the monomer solution comprises at least 0.75% by weight of a hydroxyphosphonic acid or salts thereof, calculated on the basis of the total amount of monomer used, and at least 0.09% by weight of aluminum cations, calculated on the basis of the total amount of polymer particles used, is added to the polymer particles before, during or after the thermal surface postcrosslinking.

A particulate material for removing an acid gas and/or mercury contaminant from a hydrocarbon gas is disclosed. The particulate material comprises a superabsorbent hydrogel comprising a cross-linked hydrophilic polymer network having from 0.1 mol % to 50 mol % cross-linking agent. The superabsorbent hydrogel has one or more compounds capable of binding the acid gas and/or mercury contaminant incorporated into the hydrophilic polymer network by absorbing said one or more compounds as a liquid phase or an aqueous solution. Methods for preparing the particulate material and using the particulate material to remove one or more acid gas and/or mercury contaminants from a hydrocarbon gas, dehydrating the hydrocarbon gas, and mitigating corrosion in gas flowlines are also disclosed.

A method for producing a core-shell hybrid material made of an activated carbon core surrounded by a mesoporous silica sol-gel shell, the method including the formation of a mesoporous silica sol-gel shell around activated carbon particles. Also, the core-shell hybrid material formed by the method, and its use as a filtering material in filtering systems.