67 results about "Superabsorbent polymer" patented technology

A water-swellable semiconducting material is provided, comprising a semiconducting layer and a semiconducting water-swellable polymer layer on which the semiconducting layer is arranged. The semiconducting water-swellable polymer layer consists of conductive particles dispersed in a crosslinked superabsorbent polymer matrix. This material can be formed into tapes or other structures for insulating and protecting cables. The water-swellable semiconducting material can be applied to cables or other conductive materials to insulate them and protect the cables from water ingress.

This application relates to the field of ecological restoration technology, and discloses a vegetation restoration system for drawdown zones and its construction method. The system includes laying equipment and a roller. A drive motor of the laying equipment drives the winding roller to release a coil. The roller includes a fixing rod, is filled with superabsorbent polymer resin, and is sequentially wound with an inner base mat, a middle matrix containing plant stem nodes and fungal spores, and an outer mesh. The inner base mat is interwoven with capillary water-conducting bundles, the bottom of which is inserted into the fixing rod and embedded in the resin. The outer mesh is secured with gravity lever-type anchoring nails via eccentric hinges. During construction, the motor releases the coil at a uniform speed, causing the roller to unfold along the slope. The anchoring nails, as they rotate, droop under gravity and penetrate the topsoil layer for synchronous anchoring. The fixing rod, remaining at the bottom, lifts water upwards through the absorbent resin and water-conducting bundles. This invention achieves mechanized laying of base mats on steep slopes, constructs a capillary water-lifting system to alleviate drought, and improves vegetation survival rates.

The present invention relates to a thickened aqueous composition comprising from about 0.01% to about 10% by weight of a superabsorbent polymer, from about 0.1% to about 20% of a silicone elastomer; and from about 20% to about 98% of water.

Provided are: a method for producing a water-soluble polymer, the method making it possible to produce a water-soluble polymer under mild conditions from an adhesive as waste; a method for producing a water-absorbent polymer, the method making it possible to produce a water-absorbent polymer under mild conditions from an adhesive; a water-soluble polymer that can be produced from an adhesive; and a water-absorbent polymer that can be produced from an adhesive. The method for producing a water-soluble polymer according to an embodiment of the present invention includes bringing an adhesive treatment solution including a liquid having a Hansen solubility parameter of 31 or less and an alkali compound, the concentration of alkali compound in the adhesive treatment solution being 0.001-20 wt%, into contact with an adhesive.

This invention discloses a method for preparing a green, environmentally friendly, biodegradable, salt-resistant, superabsorbent resin. The method includes mixing 10-15% polyvinyl alcohol, 10-15% humic acid, and 40-50% water, heating to 50-80°C, adding a small amount of solid alkali, and cooling to 30-50°C after the solid alkali dissolves. Then, 6-12% urea, a mixed solution of 9-15% BES-Na and a metal ion-soluble salt, 1-5% sodium p-aminobenzenesulfonate, 0.01-0.05% manganese dioxide, and 1-4% hydrogen peroxide are added. The mixture is rapidly stirred to obtain a loose, viscous system, and finally dried. The total mass percentage of all components is 100%. This invention also discloses a method for degrading the green, environmentally friendly, biodegradable, salt-resistant, superabsorbent resin, including preparing EDTA to a concentration of 0.01-0.1 mol / L. ‑1 The resin is crushed and then mixed with the salt solution. The mixture is stirred and heated to complete the degradation process.

Described herein is an absorbent article having an absorbent core. The absorbent core includes a superabsorbent polymer material and an auxiliary adhesive. The auxiliary adhesive includes from about 20% to about 70% of a first polymer and from about 30% to about 80% of a second polymer. The auxiliary adhesive has a Shear Viscosity at 10 (1 / s) at 230° C. of from about 300 mPa·s to about mPa·s.

The present invention is directed to an absorbent core for use in an absorbent article and an absorbent article comprising the same, the absorbent core comprising a top layer, a bottom layer, an intermediate layer disposed between the top layer and the bottom layer, a first absorption layer disposed between the top layer and the intermediate layer, the first absorption layer comprising first superabsorbent polymer particles "SAP1", and a second absorption layer disposed between the intermediate layer and the bottom layer, the second absorption layer comprising second superabsorbent polymer particles "SAP2", wherein the intermediate layer has at least one of: a SAP permeability no higher than about 1%at static condition as measured according to SAP permeability Test, and a SAP permeability no higher than about 25%at vibration condition for 10 seconds as measured according to SAP permeability Test, and wherein SAP1 is different from SAP2.

This utility model discloses an integrated drying and grinding machine for superabsorbent polymers, relating to the field of superabsorbent polymer processing technology. It includes a base assembly consisting of a base, a support platform, support rollers, and a first drive motor, and a drying assembly. The drying assembly is used to dry the resin. A grinding assembly is located at the top of the base, at the end of the support platform furthest from the first drive motor, and is used to grind the dried resin. This utility model achieves both drying and grinding of superabsorbent polymers by combining the drying and grinding assemblies. Furthermore, the cooperation of the central drying cylinder, the baffled drying cylinder, and the rotating drying cylinder enables the resin to be transported in an "S" shaped trajectory, effectively extending the resin's transport distance and ensuring effective drying. Simultaneously, the overall length of the drying assembly is relatively short, thus effectively reducing the equipment's footprint.

The utility model relates to the technical field of maternal and child products, in particular to a moisture absorption object capable of preventing displacement and side leakage, a protection pad, a sanitary towel and menstrual period trousers, which comprises a high-molecular water-absorbent resin layer and a fluff pulp layer coated outside the high-molecular water-absorbent resin layer, an opening is integrally formed in the upper surface of the fluff pulp layer, a deformation groove integrally formed with the high-molecular water-absorbent resin layer is formed below the opening, a weak groove is further integrally formed in the position, corresponding to the deformation groove, of the lower surface of the fluff pulp layer, and side guardrails made of sisal fiber materials are arranged on the two sides of the upper surface of the fluff pulp layer. When the clothes penetrate through the moisture absorption object, the upper surface of the moisture absorption object is turned upwards along the deformation grooves to expand through extrusion force of the clothes on the moisture absorption object, and liquid flowing out towards the two sides is absorbed through the side guardrails.

The present invention provides an absorbent article comprising an absorbent material containing a superabsorbent polymer, wherein the absorbent material containing the superabsorbent polymer is capable of ensuring sufficient absorption of body fluids. [Solution] The absorbent article 1 comprises a surface sheet 2, a first absorbent 4 disposed on the non-skin side of the surface sheet 2 and composed of an SAP sheet containing a superabsorbent polymer, and a second absorbent 5 disposed on the non-skin side of the first absorbent 4. The absorbent article 1 further comprises an embossed portion formed from the surface sheet 2 toward the first absorbent 4 and reaching at least the non-skin side surface of the first absorbent 4. When the first absorbent 4 is divided into three equal regions in the width direction W, the embossed portion includes a first embossed portion 13 located in the regions at both ends of the width direction W and extending along the longitudinal direction L.

This invention provides a separation method that enables the separation of pulp fibers from superabsorbent polymers without significantly impairing the water absorption capacity of the superabsorbent polymers. [Solution] A separation method for separating a mixture containing pulp fibers and a superabsorbent resin that constitutes a used absorbent article into a residual component containing aggregates of pulp fibers and a passing component containing the superabsorbent resin, wherein the mixture provided to the separation member is in a state in which the superabsorbent resin has swollen and the pulp fibers have formed aggregates.

A superabsorbent polymer and a method of forming the same are provided. The method includes performing a free radical polymerization reaction to a superabsorbent polymer component to obtain a colloid gel. The colloid gel is sheared by using a pulverizer to obtain superabsorbent polymer particles. A blade and a perforated plate are disposed at an outlet of the pulverizer, in which a section of the blade is a parallelogram, and the perforated plate has several holes. The method further includes performing a surface crosslinking reaction to the superabsorbent polymer particles to obtain the superabsorbent polymer. Therefore, a surface porosity, an absorption rate and a liquid conductivity of the obtained superabsorbent polymer can be increased.

This invention relates to the field of superabsorbent polymers, specifically to a fragrance-controlled release superabsorbent polymer, its preparation method, and its application. By weight, the raw materials for preparation include at least 10-20 parts of superabsorbent polymer and 0.2-1 parts of fragrance. The fragrance preparation materials include at least a fragrance source and a carrier. Based on the mass of the superabsorbent polymer, the amount of fragrance source added is 0.5-2%. This invention effectively overcomes the problem of insufficient fragrance retention time when fragrances are applied to superabsorbent polymers, enabling the provided superabsorbent polymer to have a highly efficient deodorizing, fragrance-releasing, and odor-masking effect. It achieves a controlled release effect in the use of absorbent products, and is suitable for practical applications requiring odor masking, such as pet mats, pet beds, and adult care mats.

An absorbent article comprising: a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core positioned between said topsheet and backsheet, wherein the absorbent core comprises an absorbent material, said absorbent material comprising cellulose fibers and / or superabsorbent polymers, and wherein said absorbent material is contained within at least one core wrap substrate enclosing said absorbent material, and wherein a top layer of said core wrap is adhered to a bottom layer of said core wrap by a first adhesive to form one or more channel forming areas substantially free of said absorbent material, wherein said top layer comprises said first adhesive arranged to define a first adhesive area and said bottom layer comprises a second adhesive arranged to define a second area, wherein said first adhesive area is greater than said second adhesive area, and wherein said first and second adhesive areas comprise one or more adhesive stripes, wherein at least one of said adhesive stripes of the first adhesive area overlap said channel forming areas.

This absorbent sheet (1) has: an absorbent core (10) provided with a liquid-absorbing fiber and a superabsorbent polymer; a liquid-permeable front sheet (11); and a back sheet (12). The maximum thickness of the absorbent sheet (1) is 2.0 mm or less, and both the average value of longitudinal bending rigidity B of the absorbent sheet (1) according to KES and the average value of lateral bending rigidity B of the absorbent sheet (1) according to KES are 0.5 gf·cm2 / cm or more.

In an absorbent article (1) having an upper core (31) and a lower core (32), the lower core (32) has a groove (36) that is recessed in the thickness direction and has a length along a predetermined direction. The lower core (32) has a grooved region in which the groove (36) is provided and a non-grooved region in which the groove (36) is not provided. At least a portion of the grooved region is located in the region where the upper core (31) and the lower core (32) overlap when viewed from the thickness direction. The average density of the superabsorbent polymer (34) on the skin side of the grooved region is lower than the average density of the superabsorbent polymer (34) on the skin side of the non-grooved region.

This utility model relates to the field of disposable hygiene products, and more particularly to a high-diffusion baby diaper with good diversion effect and high absorption efficiency. The absorbent core layer includes a top non-woven fabric, a middle non-woven fabric, a bulky non-woven fabric, a bottom non-woven fabric, a wood pulp fiber layer, a first absorbent material layer, and a second absorbent material layer. The first absorbent material layer includes first superabsorbent polymer particles and first wood pulp fibers. The second absorbent material layer includes second superabsorbent polymer particles. The second absorbent material layer is disposed between the bulky non-woven fabric and the bottom non-woven fabric, and some of the second superabsorbent polymer particles on the second absorbent material layer are embedded in the pores of the bulky non-woven fabric. The first absorbent material layer is disposed between the bulky non-woven fabric and the middle non-woven fabric, and some of the first superabsorbent polymer particles on the first absorbent material layer are embedded in the pores of the bulky non-woven fabric.

The present invention aims to provide a superabsorbent resin composition that exhibits excellent initial water absorption rate and can supply sufficient water to crops during the early stages of crop growth (germination stage). [Solution] A superabsorbent polymer composition comprising a crosslinked product of a polysaccharide having hydrophilic groups and / or a crosslinked product of a modified polysaccharide, and a compound having carboxyl groups and / or ester groups, The solubility parameter (SP value) of the compound having the carboxyl group and / or ester group is 9.5 to 15 (cal / cm³). 3 ) 1 / 2 A superabsorbent polymer composition wherein the total content of the compounds having carboxyl groups and / or ester groups is 1 to 25% by weight based on the weight of the superabsorbent polymer composition.

Provided are superabsorbent polymers and methods of making the same, and more particularly, provided are superabsorbent polymers capable of exhibiting improved bacterial growth inhibition characteristics without degrading the water retention capacity of the superabsorbent polymers and methods of making the same.

An absorbent article including a non-woven substrate of one or more layers of meltblown fibers and a first layer of spunbond fibers and a second layer of spunbond fibers. The absorbent article further includes an absorbent core comprising at least one of fibers or a superabsorbent polymer.

This utility model discloses a water-blocking, salt spray-resistant, and radiation-resistant power cable, comprising a low-smoke halogen-free sheath. The low-smoke halogen-free sheath has a low-smoke halogen-free wrapping tape inside. The inner surface of the low-smoke halogen-free wrapping tape has an inner water-blocking section. Inside the inner water-blocking section is an inner filling section. Inside the inner filling section is an aluminum-plastic longitudinal sheath. Multiple conductors are arranged around the inner perimeter of the aluminum-plastic longitudinal sheath. The surface of each conductor is wrapped with an outer water-blocking tape. The surface of the outer water-blocking tape is covered with low-smoke halogen-free insulation material. Alkali-free filler rope is filled between the low-smoke halogen-free insulation material and the aluminum-plastic longitudinal sheath. In this utility model, the entire inner filling section is made of neoprene rubber, which has excellent sealing performance, thus blocking moisture from entering the conductor. Simultaneously, the inner water-blocking section is made of superabsorbent polymer resin, which absorbs moisture, thereby preventing moisture from seeping into the cable.

The present invention relates to a method for producing long-term color-stable superabsorbent polymer particles, comprising the steps of polymerizing a monomer solution, drying the resulting polymer gel, optionally grinding and classifying the resulting dried polymer gel, and thermally surface postcrosslinking the resulting polymer particles and cooling, wherein a thermal surface postcrosslinker and hydrogen peroxide are added to the polymer particles prior to the thermal surface postcrosslinking.

This diaper comprises an absorbent body including: a front surface sheet disposed on a skin surface side of a wearer; a back surface sheet disposed on a non-skin surface side opposite to the skin surface side; and an absorber having an SAP sheet including a superabsorbent polymer, the absorber being disposed between the front surface sheet and the back surface sheet. A guide mark for guiding a position at which a part of the body of the wearer is to be placed is formed on the absorbent body. The SAP sheet has a low-rigidity region extending in a longitudinal direction at least on a center side of the absorbent body in the longitudinal direction relative to the guide mark.

Disclosed is an absorbent core for use in an absorbent article, the absorbent core extending in a transverse direction and a longitudinal direction and having a thickness in a vertical direction perpendicular to the transverse direction and longitudinal direction, the absorbent core comprising: a liquid-permeable top cover layer; abottom cover layer; a high loft central layer between the top cover layer and the bottom cover layer, the high loft central layer having a top surface and a bottom surface, wherein the high loft central layer has from about 0.05 g / cm3 to about 0.15 g / cm3 at 4.14 kPa (0.6 psi) and / or the initial thickness of the central layer at 4.14 kPa (0.6 psi) is more than about 0.30 mm, as measured using Thickness and Density Measurement Method herein; and a superabsorbent polymer in the form of particles deposited on the high loft central layer, wherein the superabsorbent polymer particles have a capacity of at least about 20g / g as measured by the CRC method described herein; wherein each of the top cover layer and the bottom cover layer are bonded to the top surface and the bottom surface of the high loft central layer, respectively, by a substrate adhesive having a density of less than about 13gsm,; wherein each of the top cover layer and the bottom cover layer are further bonded to the top surface and the bottom surface of the high loft central layer, respectively, by an auxiliary adhesive having a density of more than about 25gsm, the auxiliary adhesive distributed for less than 10%of each of the area of the high loft central layer facing the top cover layer and the bottom cover layer.

An absorbent sheet (40) for an animal is used for an animal toilet (1), wherein the absorbent sheet (40) has a surface sheet (41), a back sheet (42), and an absorbent body (50) having a first absorbent layer (51) having a superabsorbent polymer and a second absorbent layer (52) located at a position on one side in a thickness direction of the first absorbent layer (51) and containing a superabsorbent polymer in a liquid-absorbent fiber, the first absorbent layer (51) containing an antibacterial agent (60), and the density of the antibacterial agent (60) is higher at a portion on one side in the thickness direction of the first absorbent layer (51) than at a portion on the other side in the thickness direction of the first absorbent layer (51).

The present invention relates to a method for preparing a superabsorbent polymer. More specifically, the preparation method performs a polymerization reaction of a monomer in the presence of an aqueous dispersion of hydrophobic particles, thus enabling the preparation of a superabsorbent polymer having an improved absorption rate without deterioration in absorption properties.

The present invention is directed to an absorbent core for use in an absorbent article and an absorbent article comprising the same, the absorbent core comprising a top layer, a bottom layer, an intermediate layer disposed between the top layer and the bottom layer, a first absorption layer disposed between the top layer and the intermediate layer, the first absorption layer comprising first superabsorbent polymer particles "SAP1", and a second absorption layer disposed between the intermediate layer and the bottom layer, the second absorption layer comprising second superabsorbent polymer particles "SAP2", wherein the intermediate layer has at least one of: a SAP permeability no higher than about 1%at static condition as measured according to SAP permeability Test, and a SAP permeability no higher than about 25%at vibration condition for 10 seconds as measured according to SAP permeability Test, and wherein SAP1 is different from SAP2.