Patents Examined by Melissa A Rioja
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Patent number: 11976159Abstract: An article is prepared by injection molding, wherein the article is formed from a hydrophilic thermoplastic polyurethane composition, wherein the thermoplastic polyurethane composition comprises the reaction product of a hydroxyl terminated polyol intermediate component, an aliphatic isocyanate component, and, optionally, a chain extender component. For injection molding, the hydrophilic thermoplastic polyurethane has a crystallization temperature measured by dynamic scanning calorimetry of at least 75° C.Type: GrantFiled: June 20, 2017Date of Patent: May 7, 2024Assignee: Lubrizol Advanced Materials, Inc.Inventors: Joseph J. Vontorcik, Jr., David Cozzens
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Patent number: 11976141Abstract: A polyethylene powder having a limiting viscosity [?] of 2.0 dl/g or more and less than 20.0 dl/g as measured in decalin at 135° C., wherein the polyethylene powder presents a percentage decrease from a specific surface area A measured by the BET method before heating at 120° C. for 5 h to a specific surface area B measured by a BET method after heating at 120° C. for 5 h, ((A?B)/A×100), of 0.1% or more and less than 35%.Type: GrantFiled: February 28, 2020Date of Patent: May 7, 2024Assignee: Asahi Kasei Kabushiki KaishaInventor: Kenya Tanaka
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Patent number: 11970566Abstract: Disclosed is a method of manufacturing a polyurethane filter foam having excellent air permeability, elasticity, and restoring force. In the method of manufacturing the polyurethane filter foam, the cell size of the filter foam is made regular by controlling the pressure by adjusting the diameter of the foaming head of a foaming machine, rather than adding a cell opener, cell irregularity caused by poor dispersion of the cell opener is alleviated, and air permeability, porosity, and compression set are excellent.Type: GrantFiled: September 30, 2022Date of Patent: April 30, 2024Assignees: HYUNDAI TRANSYS INC., CHIN YANG CO., LTD.Inventors: Jae Yong Ko, Seung Keon Woo, Young Tae Cho, Won Sug Choi, Sung Yoon Lee, Jae Kwang Lee, Jun Ho Song
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Patent number: 11958955Abstract: Hybrid spray foams utilize a urethane reactant, a crosslinker, and an (optional) epoxy and/or acrylic resin along with a blowing agent and rheology modifier to produce a quick-setting foam that remains in place until the foam forms and cures. The urethane reactant may be formed as an adduct with or without the use of isocyanate chemistry. In some embodiments, the polyurethane oligomer is made by reacting cyclocarbonates and di- or polyamines, while in other embodiments the polyurethane backbone employs the use of commercially available capped or blocked urethane oligomers made by any method. The oligomers contain reactive groups, typically at the oligomer ends, that crosslink with crosslinkers or with acrylic or epoxy resins to form hybrid polyurethane foams. Foams may also contain a plasticizer, and/or a surfactant as well as other optional additives. Methods of making such foams are also provided.Type: GrantFiled: September 16, 2022Date of Patent: April 16, 2024Assignee: Owens Corning Intellectual Capital, LLCInventor: Fatemeh Nassreen Olang
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Patent number: 11958931Abstract: A flame-retardant urethane resin composition comprises a polyisocyanate compound, a polyol compound, a trimerization catalyst, a foaming agent, a foam stabilizer, and an additive, in which the trimerization catalyst is at least one selected from the group consisting of a nitrogen-containing aromatic compound, a carboxylic acid alkali metal salt, a tertiary ammonium salt, and a quaternary ammonium salt, and the additive comprises red phosphorus and at least one selected from the group consisting of a phosphoric acid ester, a phosphate-containing flame retardant, a bromine-containing flame retardant, a boron-containing flame retardant, an antimony-containing flame retardant, and a metal hydroxide.Type: GrantFiled: April 28, 2020Date of Patent: April 16, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Taichi Makida, Toshitaka Yoshitake, Yousuke Okada, Takehiko Ushimi
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Patent number: 11952455Abstract: The present invention provides a foam having a surface which solates or gelates after absorption of water and appropriately absorbs the water. The foam is prepared by a foam reaction of a mixture comprising at least one polyol, a compound having at least one isocyanate group, and a hydrophilic polymer.Type: GrantFiled: December 28, 2017Date of Patent: April 9, 2024Assignee: ALCARE CO., LTD.Inventors: Takabumi Kubo, Tomoya Tanaka, Ryota Watanabe
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Patent number: 11945927Abstract: [Problem] An object of the present invention is to provide a foam including a thermoplastic resin and rubber as a main component, in which a micronized product of a cellulose fiber is uniformly dispersed, and uniformity and mechanical properties are excellent. [Solution] A foam includes a modified cellulose fiber (A) covalently bonded with a diene-based polymer, a thermoplastic resin and/or rubber (B), and a diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber, in which the fiber (A) is micronized, the fiber (A) has a content of 0.05 to 20% by mass, and the thermoplastic resin and/or rubber (B) has a glass transition point of ?130° C. to 120° C.Type: GrantFiled: February 26, 2020Date of Patent: April 2, 2024Assignee: SEIKO PMC CORPORATIONInventors: Ryo Miyamori, Daisuke Kuroki, Hideya Sekiguchi, Akihiro Sato
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Patent number: 11932745Abstract: The present disclosure is directed to methods of forming polyimide gels. The methods generally include forming a polyamic acid and dehydrating the polyamic acid with a dehydrating agent in the presence of water. The resulting polyimide gels may be converted to polyimide or carbon xerogels or aerogels. The methods are advantageous in providing rapid or even instantaneous gelation, which may be particularly useful in formation of beads comprising the polyimide gels. Polyimide or carbon gel materials prepared according to the disclosed method are suitable for use in environments containing electrochemical reactions, for example as an electrode material within a lithium-ion battery.Type: GrantFiled: December 9, 2021Date of Patent: March 19, 2024Assignee: Aspen Aerogels, Inc.Inventors: Redouane Begag, Roxana Trifu, Nicholas A. Zafiropoulos, Harris R. Miller, George L. Gould, Nicholas Leventis
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Patent number: 11932763Abstract: A polyurethane foam, a polyurethane/polyorganosiloxane foam, and a polyurethane foam polyurethane/polyorganosiloxane foam material are disclosed and described herein. The materials are formed in the presence of a polymerization reaction initiator (an isoprenoid compound), and a polymerization reaction accelerator. The polyurethane foam is formed from an isocyanate and a polyol. The polyurethane foam polyurethane/polyorganosiloxane foam material comprises the polyurethane foam which is cross-linked to the polyurethane backbone to a polyurethane/polyorganosiloxane foam. Optional gelling agents, emulsification control agents, reinforcement fillers, cross-linkers, reinforcement polymers, rubber reinforcers, silk proteins, emollients, stabilizers and colorants are also described. The polyurethane and polyurethane-polyorganosiloxane foam materials exhibit a high degree of flexibility, resilience and excellent impact absorption.Type: GrantFiled: November 13, 2018Date of Patent: March 19, 2024Assignee: Virfex, LLCInventor: Ghassan Dehni
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Patent number: 11919994Abstract: The invention relates to a method for producing soft polyurethane foam obtained by reacting a composition containing a component A1 containing at least one filled polyol, a component A2 containing compounds reactive with isocyanates and having a hydroxyl value of ?20 to <100 mg KOH/g, the component A2 not containing any filled polyol, a component A3 containing water and/or at least one physical blowing agent, a component A4 containing auxiliary agents and additives, and a component B containing di- and/or polyisocyanates, characterized in that the reaction occurs in the presence of 0.5 to 3 parts by weight of an organic urea derivative as component C, which is obtained by reacting urea with a difunctional amine having a number-average molecular weight of 200 to 1000 g/mol. The invention also relates to a soft polyurethane foam obtainable by the method.Type: GrantFiled: May 7, 2020Date of Patent: March 5, 2024Assignee: Covestro Deutschland AGInventors: Matthaeus Gossner, Peter Haas, Michael Schedler, Sven Meyer-Ahrens, Lutz Brassat
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Patent number: 11897988Abstract: Disclosed are a hydrogenated styrene/conjugated diolefin copolymer, a foaming material thereof, and application thereof. The copolymer contains a styrene structure unit and a hydrogenated conjugated diolefin structure unit; by taking the total content of the copolymer as a reference, the content of the styrene structure unit is 15-50 wt %, the content of 1,2-polymerization structure unit in the hydrogenated conjugated diolefin structure unit is 8-32%, the degree of randomness of the styrene structure unit in the hydrogenated conjugated diolefin structure unit is 30-80%, and the degree of hydrogenation of conjugated diolefin in the copolymer is 85-100%. The tensile strength at break of the hydrogenated styrene/conjugated diolefin copolymer is 30-60 MPa, the elongation at break is 300-600%, and the hardness (Shore A) is 70-98.Type: GrantFiled: October 29, 2019Date of Patent: February 13, 2024Assignee: CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Hongwen Liang, Xiaojun Mo, Wangming Li, Chaozhou Liu, Fan Yang, Zheng Kang, Xu Wang, Zhenyin She
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Patent number: 11891471Abstract: Described herein is a process for producing a hydrophilic flexible polyurethane foam. Also described herein is a flexible polyurethane foam obtainable by such a process and a method of using such a flexible polyurethane foam for treating wounds.Type: GrantFiled: January 31, 2020Date of Patent: February 6, 2024Assignee: BASF SEInventors: Markus Schuette, Heinz-Dieter Lutter, Anne Schubert
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Patent number: 11851520Abstract: The present disclosure describes a flexible polyurethane foam having suspended within its matrix particles of silicon dioxide, SiO2. The particles of silicon dioxide are interspersed within the polyurethane matrix and protrude from the surface of the foam. These particles form an abrasive surface and the produced foam finds use as a cleaning material. The foam includes the use of a pre-polymer polyol formed by the reaction of triol polyol having a molecular weight of from 700 to 8000 with a polyisocyanate and a tin catalyst. The produced foam is much more durable than commercially available melamine foams and is an effective cleaning foam.Type: GrantFiled: November 5, 2019Date of Patent: December 26, 2023Assignee: Woodbridge INOAC Technical Products LLCInventors: Michael C. Pecoraro, Raymond Bertram
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Patent number: 11827735Abstract: Hydrofluoroolefin (“HFO”)-containing isocyanate-reactive compositions, foam-forming compositions containing such isocyanate-reactive compositions, rigid foams made using such foam-forming compositions, and methods for producing such foams, including use of such foams as panel insulation. The isocyanate-reactive compositions include a polyol composition, a blowing agent composition, and a catalyst composition. The polyol composition includes 50% to 80% by weight, based on total weight of the polyol composition, of an aromatic polyester polyol having a functionality of 1.5 to 2.5 and an OH number of 150 to 360 mg KOH/g, and an amine-initiated polyether polyol having an OH number of more than 500 mg KOH/g and a functionality of 2.5 to 4. The blowing agent composition includes a hydrofluoroolefin and water. The catalyst composition includes a morpholine, an imidazole, a quaternary ammonium carboxylate, and a metal carboxylate.Type: GrantFiled: September 1, 2022Date of Patent: November 28, 2023Assignee: COVESTRO LLCInventor: Shawn Rider
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Patent number: 11820855Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one cyclic 1,3-diketone and at least one aminoalcohol or alkylhydroxylamine. Foams so produced emit low levels of formaldehyde, acetaldehyde and propionaldehyde.Type: GrantFiled: August 2, 2018Date of Patent: November 21, 2023Inventors: Hongliang Chen, Zhengming Tang, Jian Zou, Shaoguang Feng, Degang Zhang, Ping Zhang
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Patent number: 11820876Abstract: The present disclosure relates to a method for making a non-isocyanate polyurethane (NIPU) foam, where the method includes decomposing a blowing agent having at least one of an amine carbamate salt and/or an amine bicarbonate salt to form a diamine and CO2 in the presence of a molecule comprising a plurality of cyclic carbonate functional groups and reacting the diamine with at least a portion of the cyclic carbonate functional groups to form the NIPU foam. In some embodiments of the present disclosure, the reacting and the decomposing may occur at substantially the same rate.Type: GrantFiled: August 10, 2021Date of Patent: November 21, 2023Assignee: Alliance for Sustainable Energy, LLCInventors: Tao Dong, Philip T. Pienkos
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Patent number: 11814466Abstract: Hydrophilic polyurethane foam is made from a diphenylmethane-based quasi-prepolymer having specified isocyanate and oxyethylene contents. The foams have an unusually good capacity for retaining water even when under compressive forces. They also exhibit at most moderate swelling when saturated with water. The foam is useful as a layer of a water containment system such as a green roof or blue roof system.Type: GrantFiled: September 17, 2019Date of Patent: November 14, 2023Assignee: Dow Global Technologies LLCInventors: Cody Schoener, Yasmin N. Srivastava
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Patent number: 11814496Abstract: A High Internal Phase Emulsion (HIPE) foam having cellulose nanoparticles.Type: GrantFiled: March 21, 2017Date of Patent: November 14, 2023Assignee: The Procter and Gamble CompanyInventors: Stuart J. Rowan, Donald L. Feke, Vahid Karimkhani, Ica Manas-Zloczower, Boran Zhao, Wade Monroe Hubbard, Jr., Maxwell Joseph Wingert, Steven Ray Merrigan
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Patent number: 11814467Abstract: A process for the production of a polyurethane foam having a resilience of at least 50%, said process comprising reacting (i) a first polyether polyol comprising polyether chains containing no more than 20% ethylene oxide content, and having a primary hydroxyl content of no more than 25%; (ii) a second polyether polyol comprising polyether chains containing at least 50% ethylene oxide content; and (iii) one or more aromatic polyisocyanates, in the presence of one or more catalysts having gelling and/or blowing activities.Type: GrantFiled: December 19, 2016Date of Patent: November 14, 2023Assignee: SHELL USA, INC.Inventors: Pranaya Man Singh Pradhan, Eswaramurthi Nachiappan, Michiel Barend Eleveld, Prem Kumar Dhanapal
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Patent number: 11807734Abstract: The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition.Type: GrantFiled: April 6, 2022Date of Patent: November 7, 2023Assignee: Aspen Aerogels, Inc.Inventors: Owen R. Evans, Kathryn E. deKrafft, Nicholas A. Zafiropoulos, Wenting Dong, David J. Mihalcik, George L. Gould, Irene Melnikova