Synthetic Resin Patents (Class 502/402)
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Patent number: 10639610Abstract: The present invention provides a film deterioration preventing material for using together with a record storage film having a triacetyl cellulose film as the base film thereof, wherein the material includes an alkali metal carbonate or an alkali metal hydrogen carbonate as an acetic acid gas removing agent to remove the acetic acid gas in an atmosphere. The present invention also provides an acid gas removing agent to remove the acid gas in an atmosphere, wherein the acid gas in the atmosphere is removed by an alkali metal carbonate or an alkali metal hydrogen carbonate.Type: GrantFiled: September 29, 2016Date of Patent: May 5, 2020Assignee: ASHIGARA MANUFACTURING INC.Inventors: Kazunori Matsui, Terumitsu Ishii, Akira Hashimoto
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Patent number: 10632451Abstract: The present invention relates to a method for preparing superabsorbent polymer that has not only excellent permeability and absorption speed, but also minimized absorbency under pressure decrease rate, and superabsorbent polymer prepared thereby.Type: GrantFiled: July 11, 2016Date of Patent: April 28, 2020Assignee: LG Chem, Ltd.Inventors: Min Ho Hwang, Hye Mi Nam, Sang Gi Lee, Soo Jin Lee, Tae Hwan Jang
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Patent number: 10583052Abstract: The present invention relates to a superabsorbent polymer composition. Since the superabsorbent polymer composition comprises aluminosilicate particles capable of effectively adsorbing and decreasing compounds inducing odor in sanitary products such as a diaper, etc. without deterioration of the properties of superabsorbent polymer such as centrifugal retention capacity, absorbency under load, and penetration, and does not induce caking, it can be usefully used in sanitary products, etc.Type: GrantFiled: December 1, 2016Date of Patent: March 10, 2020Assignee: LG Chem, Ltd.Inventors: Jin Woo Lee, Young Sam Kim, Young In Yang, Su Jin Kim
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Patent number: 10562006Abstract: The purpose of the present invention is to provide a particulate water absorbing agent having both a high water absorption multiplying factor and a high water absorption rate and a method for manufacturing the same. The present invention is a particulate water absorbing agent for which CRC is 30 to 50 g/g, wherein the weight average particulate diameter (D50) is 200-600 ?m, and the DRC index given by the following formula is a specific value (for example, 43, 30, or 20) or less: DRC index=(49?DRC5min [g/g])/(D50 [?m]/1000).Type: GrantFiled: March 28, 2017Date of Patent: February 18, 2020Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kazushi Torii, Mariko Tamaki, Daisuke Takagi, Yuichiro Horimoto, Taishi Kobayashi, Taku Fujimoto, Takahiro Kitano, Taku Iwamura, Hiroki Kawada, Hiroyuki Goto, Yasuhisa Nakajima, Hiroyuki Ikeuchi
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Patent number: 10562992Abstract: The present disclosure relates to a preparation method of a porous super absorbent polymer including the steps of preparing a monomer neutralized solution by adding an internal cross-linking agent, an initiator, an inorganic filler, and a nonionic surfactant to a neutralized solution obtained by neutralizing at least 80 mol % of a water soluble ethylene-based unsaturated monomer containing acidic groups; high-shear mixing the monomer neutralized solution; preparing a hydrogel polymer from the high-shear mixed monomer neutralized solution by thermal polymerization or photopolymerization; and preparing a base resin powder by drying, pulverizing, and classifying the hydrogel polymer.Type: GrantFiled: December 13, 2017Date of Patent: February 18, 2020Assignee: LG Chem, Ltd.Inventors: Ki Youl Yoon, Hyo Sook Joo, Gi Cheul Kim, Hyeon Choi, Ju Eun Kim
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Patent number: 10486137Abstract: The invention provides an anticancer agent adsorbing sheet body that exhibits a sufficient effect of adsorbing and retaining highly toxic chemical agents such as anticancer agents, and that further improves safety for health care professionals in medical environments.Type: GrantFiled: September 1, 2016Date of Patent: November 26, 2019Assignees: FUTAMURA KAGAKU KABUSHIKI KAISHA, IWATE MEDICAL UNIVERSITYInventors: Junya Sato, Makoto Yokoi, Kana Sato
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Patent number: 10479703Abstract: Method of reducing the arsenic concentration in an aqueous solution comprising undesired arsenic, which method comprises contacting the aqueous solution with a complex of Formula (I), (Formula (I)) wherein M1 and M2 are the same or different and are independently selected from V, Mn, Ga, Cu, Ni, Co, Fe or Zn; wherein a is 0, or 1, and b is 0, or 1, provided that a+b together must be at least 1; Q is a negatively charged counter ion; n is from 1 to 5; X1 is OH, O, SH or S; L1 is a group selected from —La1-C(O)NR—, —La2-C(O)OR—, —La3-NRC(O)—, La4-OC(O)—, La5-O— or La6-NRO—, wherein La1, La2, La3, La4, La5 and La6 are each C1-6 alkyl, optionally substituted, R is H or C1-6 alkyl optionally substituted; Linker is a polyethylene glycol (PEG) chain with from 1 to 10 repeating units, a C1-16 polyamine chain or a C1-16 alkyl chain; Z is a solid support; L2 to L7 are independently C1-3 alkyl, optionally substituted; and Het1 to Het4 are independently 5 to 14 membered heteroaryl group having at least one N atom and optType: GrantFiled: June 12, 2015Date of Patent: November 19, 2019Assignee: IMPERIAL COLLEGE INNOVATIONS LIMITEDInventors: Christopher Moffat, Ramon Vilar Compte, Dominik Weiss
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Patent number: 10449510Abstract: An adsorbent is provided to adsorb ruthenium from aqueous solution for recovery and/or reuse or removal of said ruthenium, and a method for purifying, for example, sea water and/or water containing sodium ions, magnesium ions, calcium ions, chlorine ions or other ions, polluted with a radioactive element, using said adsorbent. The ruthenium adsorbent includes manganese in the form of oxides thereof. The adsorbent can further include at least one additional transition metal element other than manganese, such as copper. The adsorbent soaked in water removes radioactive ruthenium or the like through adsorption, and thereby can purify, for example, sea water and/or water containing sodium ions, magnesium ions, calcium ions, chlorine ions or other ions.Type: GrantFiled: March 22, 2016Date of Patent: October 22, 2019Assignees: Clariant Catalysts (Japan) K.K., Ebara CorporationInventors: Tadahito Nakashima, Hyun-Joong Kim, Takashi Sakuma, Makoto Komatsu, Takeshi Izumi
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Patent number: 10371320Abstract: A method of storing gas comprises providing a recipient for receiving the gas and providing a porous gas storage material. The gas storage material comprises a cross-linked polymeric framework and a plurality of pores for gas sorption. The cross-linked polymeric framework comprises aromatic ring-containing monomeric units comprising at least two aromatic rings. The aromatic ring-containing monomeric units are linked by covalent cross-linking between aromatic rings to form a stable, rigid nanoporous material for storing the gas at pressures significantly greater than the atmospheric pressure, for example in excess of 100 bar. A possible application is the storage and transportation of compressed natural gas.Type: GrantFiled: December 1, 2015Date of Patent: August 6, 2019Assignee: BLUE WAVE CO S.A.Inventors: Piero Sozzani, Angiolina Comotti, Silvia Bracco
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Patent number: 10344108Abstract: Bio-based glacial acrylic acid, produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof and having impurities of hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof, is polymerized to poly(acrylic acid) or superabsorbent polymer using the same processes as petroleum-derived glacial acrylic acid.Type: GrantFiled: September 18, 2017Date of Patent: July 9, 2019Assignee: The Procter & Gamble CompanyInventors: Jane Ellen Godlewski, Janette Villalobos Lingoes, Dimitris Ioannis Collias, Axel Meyer, Peter Dziezok, Juan Esteban Velasquez
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Patent number: 10335767Abstract: A sol-gel sorbent or chromatography stationary phase is a particulate metal oxide gel containing polymeric segments uniformly distributed throughout the metal oxide gel. The metal oxide gel is an oxide from silicone or other metal oxide that can have one of the valence bonds attached to an organic group and the remainder occupied by oxygens that can be provided as an oxide or an alkoxide or aryl oxide of the polymeric segments. The particles are used for an SPE sorbent or as a packing for a reversed phase high-performance liquid chromatography (RP-HPLC), a normal phase high-performance liquid chromatography (NP-HPLC) column or a hydrophilic interaction liquid chromatography (HILIC) column.Type: GrantFiled: March 26, 2018Date of Patent: July 2, 2019Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEESInventors: Abuzar Kabir, Kenneth G. Furton
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Patent number: 10308678Abstract: The present invention provides a cation-exchange chromatographic support, comprising a membrane matrix and a copolymer immobilized on the surface of the membrane matrix, wherein the copolymer comprises a (meth)acrylamide-based compound and/or a (meth)acrylate-based compound as monomer units, and the support has one or more species of cation-exchange groups including at least a weak cation-exchange group at a density higher than 30 mmol/L per volume of the support.Type: GrantFiled: July 23, 2015Date of Patent: June 4, 2019Assignee: ASAHI KASEI MEDICAL CO., LTD.Inventors: Hiroki Taniguchi, Ichiro Koguma
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Patent number: 10287379Abstract: The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.Type: GrantFiled: March 5, 2015Date of Patent: May 14, 2019Assignee: Evonik Degussa GmbHInventors: Christoph Loick, Scott J. Smith
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Patent number: 10272364Abstract: The present invention relates to a novel stationary phase support for liquid chromatographic chiral separations. The specific combination of the special underlying support material and certain classes of known chiral selectors according to the invention produces far superior chiral (enantiomeric) separations than those obtained on any conventionally known supports. These chiral (enantiomeric) separations are enhanced in terms of significantly higher efficiencies (theoretical plate numbers), higher resolutions (Rs), shorter retention times and either equivalent or slightly higher selectivities than those obtained on conventional supports.Type: GrantFiled: July 17, 2015Date of Patent: April 30, 2019Assignee: AZYP, LLCInventors: Daniel W. Armstrong, Zachary S. Breitbach
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Patent number: 10265643Abstract: The present invention relates to superficially porous particles (SPPs), also called core-shell, porous shell or fused core particles, which are state-of-the-art support materials used in the production of HPLC columns. Hydrolytically stable, highly selective superficially porous particle (SPP) hydrophilic interaction liquid chromatographic (HILIC) stationary phases having higher efficiencies and shorter retention times than analogous stationary phases on fully porous particles (FPP) is provided.Type: GrantFiled: July 17, 2015Date of Patent: April 23, 2019Assignee: AZYP, LLCInventors: Daniel W. Armstrong, Zachry S. Breitbach
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Patent number: 10258702Abstract: A water-absorbent carrier for moist heat sterilization can be used in a narrow space and does not have a risk of generating foreign matter. The water-absorbent carrier is obtained by embedding a water-absorbent substance in a synthetic resin. The water-absorbent carrier can be manufactured by impregnating the water-absorbent substance with a water-soluble substance, drying the water-absorbent substance, embedding the water-absorbent substance in a thermoplastic synthetic resin, and washing the water-absorbent substance to remove the water-soluble substance. Alternatively, the water-absorbent carrier can be manufactured by dispersing a water-insoluble synthetic resin in a dispersion medium, mixing the water-absorbent substance in the dispersion medium, pouring the mixture into a mold, and volatilizing the dispersion medium. A medical article to be sterilized includes the water-absorbent carrier packaged in a closed space.Type: GrantFiled: March 28, 2016Date of Patent: April 16, 2019Assignee: TERUMO KABUSHIKI KAISHAInventors: Eiji Watanabe, Yoshihiko Abe
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Patent number: 10258932Abstract: Self-supporting or supported porous carbon films, including nanoporous carbon films, are provided. The porous carbon films comprise an open network of interconnected pores. Methods for making porous carbon films are also provided. One synthesis method includes formation of a synthesis mixture comprising particles of an inorganic material, a carbon precursor material and water, forming a layer of the synthesis mixture on a substrate and heat treating the film to convert the carbon precursor to carbon.Type: GrantFiled: March 11, 2015Date of Patent: April 16, 2019Assignee: UTI Limited PartnershipInventors: Viola Birss, Xiaoan Li, Dustin Banham, Daniel Y. Kwok
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Patent number: 10207250Abstract: A low cost, a disposable diaper is provided that presents no difficulties in disposable diaper manufacture in humid climates, and that has a minimal amount of flowback, and rapid absorption time. A particulate water-absorbing agent is provided having as the principal component a poly (meth)acrylic acid (salt)-based water absorbing resin, wherein the water-absorbing agent has a particle size distribution of a weight average particle diameter of 300 to 500 ?m, a blocking ratio after moisture absorption when left for one hour at 25° C. and 90% relative humidity of 20% or less, a surface tension of 60 mN/m or more, and a gel capillary absorption (GCA) of 28.0 g/g or more.Type: GrantFiled: March 2, 2015Date of Patent: February 19, 2019Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Yoshitaka Ikeuchi, Yoshifumi Adachi
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Patent number: 10150848Abstract: Composite materials including cellulose nanocrystals incorporated into a polymer aerogel scaffold, wherein the cellulose nanocrystals serve as a reinforcement agent to result in the formation of less dense aerogels, improve the tensile mechanical properties of aerogel films, and reduce aerogel shrinkage upon thermal exposure. After gelation, the gel is dried via a suitable method such as supercritical CO2 extraction, freeze drying or other method, to produce the CNC/polymer composite aerogel. Properties of the composite aerogel can be tailored via surface modification of the cellulose nanocrystals as well as through the backbone structure of the polymer.Type: GrantFiled: July 31, 2015Date of Patent: December 11, 2018Assignees: CASE WESTERN RESERVE UNIVERSITY, THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE ADMINISTRATOR OF NASAInventors: Baochau Nguyen, Mary Ann Meador, Stuart Rowan, Elvis Cudjoe
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Patent number: 10130527Abstract: An absorbent core (28), for use in an absorbent article, comprising a core wrap (16, 16?) enclosing an absorbent material (60) comprising superabsorbent polymer particles. The core wrap comprises a top side (16) and a bottom side (16?), and the absorbent core comprises one or more area(s) (26) substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, so that when the absorbent material swells the core wrap forms one or more channel(s) (26?) along the area(s) (26) substantially free of absorbent material. The superabsorbent polymer particles have a time to reach an uptake of 20 g/g (T20) of less than 240 s as measured according to the K(t) test method.Type: GrantFiled: August 19, 2014Date of Patent: November 20, 2018Assignee: The Procter & Gamble CompanyInventors: Andrea Peri, Aniruddha Chatterjee, Peter Dziezok, Bruno Johannes Ehrnsperger, Juliane Kamphus, Marion Lutsche
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Patent number: 10130931Abstract: Disclosed are a granular super absorbent polymer, including particles (A) having an average diameter of 150 to 850 ?m, wherein the particles (A) includes particles (a1) having an average diameter of 500 to 850 ?m; and particles (a2) having an average diameter of 150 to 250 ?m, and the particles (a1 and a2) have a water-solubility index of 0.08 to 2.0 (represented by Equation 1), thereby it is possible to maintain a proper amount of extractables in a resin, and to exhibit excellent flow conductivity and water absorption ability in a case of being actually applied to products, without inducing any skin problem when, as well as a preparation method thereof.Type: GrantFiled: February 1, 2016Date of Patent: November 20, 2018Assignees: SK INNOVATION CO., LTD., SK GLOBAL CHEMICAL CO., LTD.Inventors: Byoung-Cheon Jo, Du-Youn Ka, Ju-Hee Kim, Byoung-Tak Yim
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Patent number: 10125229Abstract: The present invention relates to a continuous manufacturing process for a rubber masterbatch and a rubber masterbatch prepared therefrom. The manufacturing process comprises the following steps: step 1): a filler is added to a rubber solution, forming a rubber/filler/solvent mixture by stirring; and step 2): the solvent is removed and the mixture is dried, resulting in a rubber/filler masterbatch. The present invention also relates to a masterbatch prepared by the above-mentioned process and a rubber article prepared using the masterbatch. Compared to the wet mixing technologies in the prior art, the present invention has no specific requirements of rubber and filler, with a wider scope of usage. In addition, the filler has a high dispersion in rubber compounds, the production process thereof is continuous, highly efficient, low in energy consumption and labour, and thus low in cost.Type: GrantFiled: July 22, 2014Date of Patent: November 13, 2018Assignee: EVE RUBBER INSTITUTE CO., LTCInventors: Mengjiao Wang, Jianjun Song, Deying Dai
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Patent number: 10065173Abstract: The present invention provides a process for producing a water-absorbent resin, characterized in that a reverse-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer is carried out in a hydrocarbon dispersion medium comprising a dispersion stabilizer while an azo-based compound and a peroxide are combined in the presence of an internal-crosslinking agent, in that the following formulae are satisfied, 0.10?B/(A+B)??(1), and 0.055?B+9×C?0.120??(2), wherein A mol, B mol and C mol represent used amounts of the azo-based compound, the peroxide and the internal-crosslinking agent, respectively, relative to 100 mol of the water-soluble ethylenically unsaturated monomer used in the polymerization, and in that a post-crosslinking reaction is carried out by adding a post-crosslinking agent after the polymerization. The present invention also relates to a water-absorbent resin having specific performance and produced by the process.Type: GrantFiled: November 4, 2014Date of Patent: September 4, 2018Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tetsuhiro Hinayama, Masahiro Murakami, Junichi Takatori
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Patent number: 10046305Abstract: Disclosed are a surface-modified superabsorbent polymer and a method of preparing the same, wherein a superabsorbent polymer is surface-modified with the addition of a water-soluble salt having a multivalent cation and superhydrophobic microparticles, thereby improving attrition resistance, permeability and absorption speed without significantly deteriorating the other properties thereof.Type: GrantFiled: February 18, 2016Date of Patent: August 14, 2018Assignee: LG Chem, Ltd.Inventors: Su-Jin Kim, Young-Sam Kim, Young-In Yang, Yeon-Woo Hong
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Patent number: 10040911Abstract: A method of preparing absorbent polymer granules is provided. The method of preparing fine particle granules according to the present disclosure may provide granules of which re-breaking is minimized due to a superior binding force between fine particles.Type: GrantFiled: October 8, 2015Date of Patent: August 7, 2018Assignee: LG Chem, Ltd.Inventors: Kyu Pal Kim, Chang Sun Han
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Patent number: 10035130Abstract: The present invention provides a method of preparing a superabsorbent polymer, including adding a superabsorbent polymer with a water dispersion solution containing particles having i) a BET specific surface area of 300 to 1500 m2/g and ii) a porosity of 50% or more, and a superabsorbent polymer prepared by the method.Type: GrantFiled: October 14, 2015Date of Patent: July 31, 2018Assignee: LG Chem, Ltd.Inventors: Su-Jin Kim, Young-Sam Kim, Young-In Yang, Kyoung-Shil Oh
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Patent number: 10024498Abstract: A hydrogen storage composition, a hydrogen storage container and a method for producing the hydrogen storage container are provided. The hydrogen storage composition includes a thermally-conductive material, a hydrogen storage material, and optionally an elastic material. The hydrogen storage container includes a canister body and the hydrogen storage composition. After the hydrogen storage composition is placed into a canister body, a vacuum environment within the canister body is created, and a first weight of the canister body is recorded. Then, hydrogen gas is activated and charged into the canister body, and a second weight of the canister body is recorded. Then, a hydrogen storage amount is calculated according to the first weight and the second weight. If the hydrogen storage amount reaches the predetermined value, the hydrogen storage container is produced.Type: GrantFiled: October 18, 2016Date of Patent: July 17, 2018Assignee: ASIA PACIFIC FUEL CELL TECHNOLOGIES, LTD.Inventors: Jefferson Y S Yang, Chi-Kai Cheng, Wu-Yao Wei
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Patent number: 10005932Abstract: A multi-ply absorbent sheet includes a first absorbent ply of cellulosic sheet; a second absorbent ply of cellulosic sheet; and a ply bonding adhesive interposed between the first absorbent ply and the second absorbent ply, the ply-bonding adhesive thereby adhering said absorbent plies together. The ply-bonding adhesive comprises polyvinyl alcohol and nanofibrillated cellulose. In a particularly preferred embodiment the adhesive is applied as a dilute aqueous composition to tissue plies and the nanofibrillated cellulose has a Characteristic Breaking Length of 6.5 km or above.Type: GrantFiled: October 17, 2017Date of Patent: June 26, 2018Assignee: GPCP IP Holdings LLCInventors: Daniel W. Sumnicht, Zhiying Yu, Siddharth S. Vaijapurkar
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Patent number: 9999868Abstract: The present invention relates to a method for preparing a superabsorbent polymer including a) preparing a hydrogel phase polymer by thermopolymerizing or photopolymerizing a monomer composition including a water-soluble ethylenically unsaturated monomer and a polymerization initiator; b) adding particles having properties of the following i) and ii) to the hydrogel phase polymer, i) BET specific surface area of 300 m2/g to 1500 m2/g and ii) porosity of 50% or greater; c) chopping the particle-added hydrogel phase polymer; d) drying the hydrogel phase polymer; e) milling the dried hydrogel phase polymer; f) adding a surface crosslinking agent to the milled hydrogel phase polymer; and g) carrying out a surface crosslinking reaction.Type: GrantFiled: January 12, 2016Date of Patent: June 19, 2018Assignee: LG Chem, Ltd.Inventors: Bo-Hee Park, Young-Sam Kim
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Patent number: 9999869Abstract: Disclosed are a surface-modified superabsorbent polymer and a method of preparing the same, wherein a superabsorbent polymer is surface-modified with the addition of a water-soluble salt having a multivalent cation and superhydrophobic microparticles, thereby improving attrition resistance, permeability and absorption speed without significantly deteriorating the other properties thereof.Type: GrantFiled: February 18, 2016Date of Patent: June 19, 2018Assignee: LG Chem, Ltd.Inventors: Su-Jin Kim, Young-Sam Kim, Young-In Yang, Yeon-Woo Hong
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Patent number: 9982369Abstract: A fiber for protein adsorption has a water absorption percentage of 1 to 50%, and the fiber includes a polymer containing as repeat units an aromatic hydrocarbon or a derivative thereof, wherein part of aromatic rings contained in the repeat units are cross-linked through a structure represented by Formula (I). A column for protein adsorption uses the fibers. A in Formula (I) is selected from an alkyl aliphatic group, phenyl aromatic group and amino group.Type: GrantFiled: September 16, 2015Date of Patent: May 29, 2018Assignee: Toray Industries, Inc.Inventors: Junichi Kasuya, Naotoshi Tomita, Yoshiyuki Ueno
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Patent number: 9975979Abstract: A method of preparing a superabsorbent polymer is provided. The method of preparing the superabsorbent polymer according to the present disclosure is able to provide the superabsorbent polymer having an improved absorption rate while having superior centrifuge retention capacity (CRC) and absorbency under pressure (AUP).Type: GrantFiled: October 8, 2015Date of Patent: May 22, 2018Assignee: LG Chem, Ltd.Inventors: Kyu Pal Kim, Chang Sun Han
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Patent number: 9944739Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution comprising less than 0.3% by weight of persulfate and at least 0.05% by weight of azo initiator and thermal aftertreatment of the formed polymer particles at less than 100° C. in a fluidized bed for 60 to 300 minutes.Type: GrantFiled: July 27, 2017Date of Patent: April 17, 2018Assignee: BASF SEInventors: Thomas Daniel, Norbert Herfert, Stephan Bauer, Katrin Baumann, Birgit Reinhard, Jürgen Freiberg, Rudolf Schliwa
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Patent number: 9931457Abstract: The invention concerns polymer systems comprising at least one polymer with a plurality of pores where the polymer is initially functionalized on substantially all surfaces followed by a stepwise surface specific functionalization such that a different functional group resides on the external or internal pore surface of the bead. The invention also concerns use of such polymer systems in blood, blood product, or physiologic fluid purification.Type: GrantFiled: January 6, 2012Date of Patent: April 3, 2018Assignee: CytoSorbents CorporationInventors: Phillip P. Chan, Vincent J. Capponi, Thomas D. Golobish, Humayra Begum Ali
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Patent number: 9931611Abstract: Articles are provided for absorbing fluids. In embodiments, the articles of the present disclosure are modified to make them hydrophobic, thereby decreasing their affinity for water and similar liquids, while increasing their affinity for other hydrophobic materials, including oil. After use, the articles, in embodiments polyurethane sponges, may have their absorbed materials removed therefrom, and the articles may then be reused to absorb additional materials.Type: GrantFiled: November 4, 2014Date of Patent: April 3, 2018Assignee: The Research Foundation for the State University of New YorkInventors: Benjamin Chu, Benjamin Hsiao, Zhe Wang
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Patent number: 9895675Abstract: Soil adsorbing composites, and more particularly to soil adsorbing composites that exhibit improved (lower values) Backscattering Values as measured according to the Soil Flocculation and Settling Test Method described herein compared to non-soil adsorbing composites (such as particulate materials, for example silica and/or pulp fibers, that are not associated with a soil adsorbing polymer), soil adsorbing compositions containing same, processes for making same, and methods for using same.Type: GrantFiled: March 24, 2016Date of Patent: February 20, 2018Assignee: The Procter & Gamble CompanyInventors: Robin Lynn McKiernan, Steven Daryl Smith, Robert Joseph McChain, Jamie Lynn Dria
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Patent number: 9889426Abstract: Hygroscopic particles including a crosslinked polymer containing 6.0 to 12.0 meq/g of carboxyl groups and 0.1 to 2.0 meq/g of sulfonic acid groups and/or sulfonate groups, 80% or more of the carboxyl groups being neutralized to a potassium salt.Type: GrantFiled: May 18, 2015Date of Patent: February 13, 2018Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei Okuyama, Yusuke Obu, Shunya Nangou, Naru Kawahara
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Patent number: 9878063Abstract: The deodorizing mask of the present invention has a main body part that includes a deodorizing fiber layer containing a composite fiber having a chemical adsorption type deodorizer bonded to the surface of a fiber with an adhesive composition. The chemical adsorption type deodorizer is a component having at least one type selected from copper and zinc elements. The adhesive composition includes at least one type selected from polyester, poly vinyl alcohol, cellulose, starch, poly acrylamide, poly alkylene oxide and poly vinyl pyrrolidone.Type: GrantFiled: May 26, 2015Date of Patent: January 30, 2018Assignee: TOAGOSEI CO., LTD.Inventor: Yoshinao Yamada
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Patent number: 9873104Abstract: To provide a method for producing a water-absorbing resin by which problems caused by addition of a particulate additive or water-absorbing resin fine powder can be prevented and a water-absorbing resin having high physical properties can be stably and efficiently obtained. A method for producing a polyacrylic acid (salt)-based water-absorbing resin, the method including: an aqueous monomer solution preparation step for preparing an aqueous solution containing a monomer having an acrylic acid (salt) as a main component; a polymerization step for polymerizing the monomer to obtain a hydrogel-forming crosslinked polymer; and a drying step for drying the hydrogel-forming crosslinked polymer to obtain a dry polymer, wherein the method further includes an adding step for adding a particulate additive to the aqueous monomer solution and/or the hydrogel-forming crosslinked polymer, and in the adding step, an oxygen concentration in an ambient atmosphere of the particulate additive is set to 5% by volume or less.Type: GrantFiled: March 3, 2015Date of Patent: January 23, 2018Assignee: Nippon Shokubai Co., Ltd.Inventors: Satoshi Matsumoto, Shinichi Fujino, Kunihiko Ishizaki
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Patent number: 9834486Abstract: The invention relates to a process for producing polymer composites suitable for absorbing and storing aqueous liquids, to the polymer composites obtainable by this process, and to the use of the polymer composites. The process comprises free-radical polymerization of a monomer composition M comprising 50 to 100% by weight, based on the total amount of monomers A and B, of at least one monomer A having one ethylenic double bond and at least one neutralizable acid group, 0 to 50% by weight of optionally one or more comonomers B which are different than the monomers A and have one ethylenic double bond, and 1 to 10% by weight, based on the total amount of monomers A and B, of at least one crosslinker C.Type: GrantFiled: April 28, 2014Date of Patent: December 5, 2017Assignee: BASF SEInventors: Francisco Javier Lopez Villanueva, Tina Mark, Alexandra Wiedemann, Alexander Wissemeier, Michael Seufert, Jorge Sanz-Gomez, Alban Glaser
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Patent number: 9833766Abstract: Crosslinked polymer particles having a) a proportion of particles having a particle size of 150 to 300 ?m of at least 20% by weight, b) a free swell rate of the entirety of the polymer particles FSRoverall of at least 0.25 g/g·s, c) a difference ?FSR of at least 0.15, d) a centrifuge retention capacity CRC of at least 25.0 g/g, and e) a permeability of the swollen gel bed SFC of at least 90×10?7 cm3·s/g are disclosed.Type: GrantFiled: May 7, 2015Date of Patent: December 5, 2017Assignee: BASF SEInventors: Markus Braun, Monica Haag, Stephan Deuerlein
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Patent number: 9822285Abstract: A multi-ply absorbent sheet includes a first absorbent ply of cellulosic sheet; a second absorbent ply of cellulosic sheet; and a ply bonding adhesive interposed between the first absorbent ply and the second absorbent ply, the ply-bonding adhesive thereby adhering said absorbent plies together. The ply-bonding adhesive comprises polyvinyl alcohol and nanofibrillated cellulose. In a particularly preferred embodiment the adhesive is applied as a dilute aqueous composition to tissue plies and the nanofibrillated cellulose has a Characteristic Breaking Length of 6.5 km or above.Type: GrantFiled: January 19, 2016Date of Patent: November 21, 2017Assignee: GPCP IP Holdings LLCInventors: Daniel W. Sumnicht, Zhiying Yu, Siddharth S. Vaijapurkar
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Patent number: 9795112Abstract: Disclosed are compositions of matter and a method of manufacturing that may be used to create animal litter that detects health conditions with feline animals. For example, feline urine detection may be performed by color generation when a feline animal urinates on the litter composition. The color generation properties of the litter may be used to indicate diabetic conditions, and urinary tract infections. The litter may be highly absorbent and efficient for waste removal purposes.Type: GrantFiled: September 29, 2015Date of Patent: October 24, 2017Assignee: HEALTHY HAPPY PETS, LLCInventor: James Norman Goff
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Patent number: 9790304Abstract: The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution comprising less than 0.3% by weight of persulfate and at least 0.05% by weight of azo initiator and thermal aftertreatment of the formed polymer particles at less than 100° C. in a fluidized bed for 60 to 300 minutes.Type: GrantFiled: November 11, 2013Date of Patent: October 17, 2017Assignee: BASF SEInventors: Thomas Daniel, Norbert Herfert, Stephan Bauer, Katrin Baumann, Birgit Reinhard, Jürgen Freiberg, Rudolf Schliwa
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Patent number: 9782747Abstract: An oxygen-absorbing composition of the present invention contains: a gas barrier resin (A) having an oxygen transmission rate of 500 mL·20 ?m/(m2·day·atm) or less as measured at 20° C. and 65% RH; a thermoplastic resin (B) including repeating units represented by General Formula (I) below (where X is a methylene group or an oxygen atom, R1 is an alkenylene group having 3 to 12 carbon atoms, and n is an integer of 5 to 5000); at least one type of metal salt (C) selected from the group consisting of an iron salt, a nickel salt, a copper salt, a manganese salt, and a cobalt salt; and a bifunctional processing stabilizer (D) that is a compound having an acrylate structure and a hindered phenol structure in a same molecule. The oxygen-absorbing resin composition of the present invention performs excellent oxygen-absorbing properties, and enables to reduce generation of an unpleasant odor caused by decomposition of the oxygen-absorbing composition during oxygen absorption.Type: GrantFiled: July 13, 2015Date of Patent: October 10, 2017Assignee: Kuraray Co., Ltd.Inventor: Wataru Hirose
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Patent number: 9776167Abstract: An object of the invention is to provide a treatment agent for treating excrement and the like. The treatment agent is an aggregated treatment agent comprising slaked lime, a water absorptive polymer, a binder, and at least one member selected from the group consisting of a phosphoric acid salt, a carbonic acid salt and a hydroxide at pH 8 to 13.Type: GrantFiled: May 11, 2015Date of Patent: October 3, 2017Inventor: Kanichi Adachi
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Patent number: 9751995Abstract: The present invention relates to a superabsorbent polymer that has more improved gel strength and is improved in both water retention capacity (centrifuge retention capacity, CRC) and absorption ability under pressure (AUP) because of an optimized cross-linked structure of a base resin powder inside a cross-linked surface layer, and a preparation method thereof. The superabsorbent polymer includes a base resin powder including a 1st cross-linked polymer of a water-soluble ethylenic unsaturated monomer having acid groups of which at least a part is neutralized, and a cross-linked surface layer that includes a 2nd cross-linked polymer further cross-linked from the 1st cross-linked polymer and is formed on the base resin powder, wherein an inorganic particle is chemically bonded to the 1st cross-linked polymer by the medium of a cross-linking bond, an oxygen-containing bond (—O—), or a nitrogen-containing bond (—NR—, where R is hydrogen or a C1-C3 alkyl or an amide bond).Type: GrantFiled: August 4, 2015Date of Patent: September 5, 2017Assignee: LG CHEM, LTD.Inventors: Hyo Sook Joo, Ki Youl Yoon, Gi Cheul Kim, Ju Eun Kim, Hyeon Choi, Hee Jung Choi, Sung Soo Park, Sung Hyun Park, Myung Han Lee
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Patent number: 9724669Abstract: Articles are provided for absorbing fluids. In embodiments, the articles of the present disclosure are modified to make them hydrophobic, thereby decreasing their affinity for water and similar liquids, while increasing their affinity for other hydrophobic materials, including oil. After use, the articles, in embodiments sponges, may have their absorbed materials removed therefrom, and the articles may then be re-used to absorb additional materials.Type: GrantFiled: February 14, 2014Date of Patent: August 8, 2017Assignee: The Research Foundation for the State University of New YorkInventors: Benjamin Chu, Benjamin S. Hsiao, Zhe Wang
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Patent number: 9700873Abstract: The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention can provide a super absorbent resin having fast absorption rate and high absorption properties under pressure by using the polycarboxylic acid-based copolymer under pulverization of the hydrous gel phase polymer.Type: GrantFiled: October 19, 2015Date of Patent: July 11, 2017Assignee: LG Chem, Ltd.Inventors: Yong Hun Lee, Tae Bin Ahn, Chang Sun Han, Hwayoon Jung
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Patent number: 9687812Abstract: The method for making a carbonaceous sponge-like sorbent includes mixing a volume of carbon-rich fly ash with a binder. The carbon-rich fly ash may be air dried prior to mixing with the binder. For example, the volume of fly ash can be placed in a hopper and a binder can be added to the volume of fly ash by spraying or the like. The binder can be a polyvinyl acetate emulsion. The binder and the volume of fly ash can be mixed in the hopper by a mechanical stirrer or the like to form a carbonaceous mixture. A conveyer can transfer the carbonaceous mixture from the hopper to the press for pressing the carbonaceous mixture into a block of carbonaceous sponge-like sorbent. The produced block of carbonaceous sponge-like sorbent can then be transferred to a dryer for drying and curing the binder therein.Type: GrantFiled: December 3, 2015Date of Patent: June 27, 2017Assignee: KING ABDULAZIZ UNIVERSITYInventors: Sherif Shawki Zaki Hindi, Attieh A. Alghamdy