Patents Examined by Rabon A. Sergent
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Patent number: 11970574Abstract: A method of producing an alcohol ethoxylate surfactant or lubricant, the method including reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a nominal hydroxyl functionality at least 1, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)I(R2)I(R3)I(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2, R3, and R4 are each independent, R1 includes a first fluoroalkyl-substituted phenyl group, R2 includes a second fluoroalkyl-substituted phenyl group or a first fluoro/chloro-substituted phenyl group, R3 includes a third fluoroalkyl-substituted phenyl group or a second fluoro/chloro-substituted phenyl group, and optional R4 includes a functional group or functional polymer group, R1 being different from at least one of R2 and R3.Type: GrantFiled: September 14, 2018Date of Patent: April 30, 2024Assignee: Dow Global Technologies LLCInventors: Arjun Raghuraman, William H. Heath, Bruce D. Hook, Wanglin Yu, Sukrit Mukhopadhyay, Heather A. Spinney, David R. Wilson
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Patent number: 11965061Abstract: A ternary composite catalyst of diethylzinc and yttrium trifluoroacetate loaded on chitin for copolymerization of carbon dioxide, epoxy cyclohexane and ethylene oxide is provided. The ternary composite catalyst exhibits strong catalytic activity for the ternary copolymerization of carbon dioxide, cyclohexane oxide and ethylene oxide. A high molecular weight and content of ester chain is maintained. Conventional rare earth ternary catalysts leave residues in the polymer, and the polymer requires rinsing with hydrochloric acid. The ternary composite catalyst can be removed through filtration. The average molecular weight of the resulting polycarbonate is more than 100,000, and the ester chain content is more than 90%. The resulting polymer has a lower metal content. The ternary composite catalyst can be used in agricultural film, disposable packaging and other polymer materials.Type: GrantFiled: July 28, 2022Date of Patent: April 23, 2024Assignee: Changzhou UniversityInventors: Qun Chen, Mingyang He, Junfeng Qian, Shengchun Chen, Zhonghua Sun, Weiyou Zhou, Zenan Ji
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Patent number: 11958937Abstract: One embodiment relates to a polymerizable composition and an optical material produced therefrom which has excellent lightfastness and minimized color defects, and more specifically, the polymerizable composition according to one embodiment includes UV absorbers having, as the main absorption wavelength, either a long-wavelength region or a short-Wavelength region Within the UV region, wherein the UV absorbers do not absorb in the Visible light region. Accordingly, the polymerizable composition may be used to provide an optical material having excellent lightfastness and minimized color defects.Type: GrantFiled: June 4, 2019Date of Patent: April 16, 2024Assignee: SK PUCORE CO., LTD.Inventors: Seung Mo Hong, Jung Hwan Myung, Hyuk Hee Han, Jeongmoo Kim, Junghwan Shin
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Patent number: 11958936Abstract: A method of producing a polyether polyol includes reacting a low molecular weight initiator with one or more monomers in the presence of a polymerization catalyst, and the low molecular weight initiator has a nominal hydroxyl functionality of at least 2. The one or more monomers includes at least one selected from propylene oxide and butylene oxide. The polymerization catalyst is a Lewis acid catalyst having the general formula M(R1)1(R2)1(R3)1(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2, R3, and R4 are each independent, R1 includes a fluoroalkyl-substituted phenyl group, R2 incudes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, R3 includes a fluoroalkyl-substituted phenyl group or a fluoro/chloro-substituted phenyl group, and optional R4 includes a functional group or functional polymer group, R1 being different from at least one of R2 and R3.Type: GrantFiled: September 14, 2018Date of Patent: April 16, 2024Assignee: Dow Global Technologies LLCInventors: Arjun Raghuraman, William H. Heath, Sukrit Mukhopadhyay, Heather A. Spinney, David R. Wilson, Anthony P. Gies, Manjiri R. Paradkar
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Patent number: 11952456Abstract: The present invention is directed to a polyisocyanate polyaddition product, obtained or obtainable according to a process containing reacting at least a polyisocyanate composition (C-I) comprising at least one polyisocyanate; and a composition (C-II) comprising at least one compound (C-A) having at least two functional groups which are reactive towards isocyanate groups, wherein the compound (C-A) has a molecular weight of 500 g/mol or more and comprises polycyclic aromatic moieties. The present invention is further directed to a process for preparing said polyisocyanate polyaddition product and the use thereof in a cable, conveyor belt, roller, seal for gasket or railway pad.Type: GrantFiled: April 26, 2018Date of Patent: April 9, 2024Assignee: BASF SEInventors: Sirus Zarbakhsh, Nabarun Roy, Hendrik Wagner
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Patent number: 11945903Abstract: Embodiments of the present disclosure are directed towards solventless compositions that include a reaction product formed by reacting a polyol and an aminopolycarboxylic compound.Type: GrantFiled: July 7, 2020Date of Patent: April 2, 2024Assignee: Dow Global Technologies LLCInventors: Yinzhong Guo, Xue Chen, Stephen W. King
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Patent number: 11945902Abstract: A two-component polyurethane composition comprising: an aqueous dispersion comprising an emulsion polymer and a specific sulphate and/or sulfonate surfactant, and a water-dispersible polyisocyanate; the emulsion polymer with a weight average molecular weight of 70,000 g/mol or less comprising, by weight based on the weight of the emulsion polymer, greater than 0.25% of structural units of a phosphorous-containing acid monomer and/or salts thereof, greater than 15% of structural units of a hydroxy-functional alkyl (meth)acrylate, structural units of an monoethylenically unsaturated nonionic monomer, and from zero to 10% of structural units of an additional acid monomer and/or salts thereof; and a process of preparing the two-component polyurethane composition.Type: GrantFiled: September 21, 2018Date of Patent: April 2, 2024Assignees: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Daoshu Lin, Baoqing Zheng, Jia Tang, Dong Yun, Shujun Shu, Gary W. Dombrowski
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Patent number: 11945947Abstract: A crosslinked polymeric composition comprising A, B, C, D, and E units having the following structures, respectively: and wherein dashed bonds represent optional bonds; the asterisks (*) in C units represent covalent bond connection points with asterisks in A units and E units; the asterisks (*) in D units represent covalent bond connection points with asterisks in B units and E units; wherein a portion of E units are bound to C units, a portion of E units are bound to D units, and a portion of E units are bound to both C and D units; and the composition contains a multiplicity of A, B, C, D, and E units. Also described is a method for producing the crosslinked polymeric composition by reacting epoxy-containing molecules (A molecules), isocyanate-containing molecules (B molecules), and disulfide-containing molecules (C molecules).Type: GrantFiled: April 24, 2023Date of Patent: April 2, 2024Assignee: UT-Battelle, LLCInventors: Tomonori Saito, Zhengping Zhou, Md Anisur Rahman
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Patent number: 11932720Abstract: An inventive flexible medical item container comprises a unique adhesive and cohesive viscoelastomeric thermoset polymer. In preferred embodiments, medical items can be repeatedly releasably adhered to and removed from the top side of the container. In addition, the bottom side of the container can be disposed upon and adhered to an object, such as a medical garment, such that the container can be located proximate or adjacent to a medical, dental or hygienic procedure location. In some preferred embodiments, the container further comprises antimicrobial properties. In some preferred embodiments, the container further comprises cleansability properties.Type: GrantFiled: July 4, 2022Date of Patent: March 19, 2024Inventors: Matthew Wayne Kriesel, Troy Bradley Goodenough
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Patent number: 11932721Abstract: The present disclosure relates to methods for making polyols, esters, and surfactants. Generally, a carboxyl-containing molecule is reacted with an epoxide-containing molecule to obtain a hydroxylated ester. If multiple epoxide groups are present in the epoxide-containing molecule, the resulting molecule can also be considered a polyol. The hydroxyl groups can be further ethoxylated to obtain a surfactant/stabilizer.Type: GrantFiled: December 14, 2022Date of Patent: March 19, 2024Inventor: Ramanathan S Lalgudi
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Patent number: 11911745Abstract: Provided herein is a porous ?-cyclodextrin-containing monolith having a microstructure templated by the external phase of a HIPE, as well as processes of manufacturing the same and uses thereof.Type: GrantFiled: August 2, 2021Date of Patent: February 27, 2024Assignee: Technion Research & Development Foundation LimitedInventors: Rajashekharayya A. Sanguramath, Inna Berezovska, Michael S. Silverstein
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Patent number: 11898007Abstract: The present invention discloses a Double Metal Cyanide (DMC) catalyst(s) useful for the production of polyether polyols (PEPO) and a less energy intensive room temperature method for the synthesis thereof. The catalyst(s) comprises of a DMC complex, an organic complexing agent, i.e., ethylenediaminetetraacetic acid (EDTA) and other co-complexing organic agents, e.g., t-BuOH, PEPO of composition ranging from about 1 to 10 wt %, wherein the average molecular weight of PEPO used ranged from 200 to 1000. A method of preparing a series of DMC catalyst(s) at room temperature with varying compositional ratios of the complexing and co-complexing agents targeting a wide range of PEPO of varying kinematic viscosity range is also disclosed. These DMC catalyst(s) are amorphous, highly active, and easily separable from product PEPO with recyclability/recoverability, making the product PEPO better industrially applicable and DMC catalyst more cost-effective.Type: GrantFiled: February 11, 2022Date of Patent: February 13, 2024Assignee: Council of Scientific & Industrial ResearchInventors: Umesh Kumar, Akash Verma, Swati, Bhawna Sharma, Thangaraj Senthil Kumar, Sudip Kumar Ganguly, Anjan Ray
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Patent number: 11898019Abstract: A method for processing polyolefins may include contacting solid polyolefins with a solid catalyst to form a reaction mixture. The solid catalyst may be chosen from a zeolite, a microporous aluminosilicate, an alumina, or combinations thereof. The solid polyolefins may be chosen from polyethylene, polypropylene, or combinations thereof. The method may include mechanically agitating the reaction mixture to produce olefin-containing hydrocarbon polymers and separating the olefin-containing hydrocarbon polymers from the solid catalyst. The olefin-containing hydrocarbon polymers include a carbon-carbon double bond in the backbone of the hydrocarbon polymers.Type: GrantFiled: January 25, 2022Date of Patent: February 13, 2024Assignee: Saudi Arabian Oil CompanyInventors: Douglas Theberge, Seth Sharber
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Patent number: 11897082Abstract: The invention provides a polishing pad suitable for polishing at least one of semiconductor, optical, magnetic or electromechanical substrates. The polishing pad includes a polyurea polishing layer and a polyurea matrix. The polyurea matrix has a soft phase and a hard phase. The soft phase is formed from soft segments and the hard phase is formed from diisocyanate hard segments and a curative agent. The soft segment areva copolymer of aliphatic fluorine-free polymer groups and a fluorocarbon having a length of a least six carbons. The polyurea matrix is cured with the curative agent and includes gas or liquid-filled polymeric microelements. The soft segments form a fluorine rich phase that concentrates adjacent the polymeric microelements and at the polishing layer during polishing. The polishing layer remains hydrophilic during polishing in shear conditions.Type: GrantFiled: September 11, 2021Date of Patent: February 13, 2024Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.Inventors: Matthew R. Gadinski, Joseph So
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Patent number: 11884770Abstract: An alternative polyurethane composition is provided which comprises a reaction product of an azidated polyol and a poly(alkynyl carbamate) prepolymer, wherein reaction occurs at a temperature of from 20° C. to 200° C., optionally in the presence of a catalyst, wherein the poly(alkynyl carbamate) prepolymer comprises a reaction product of stoichiometric equivalents of a polyisocyanate and a component comprising 1-100% of an alkynol-ether of the formula (I): HC?C—R—OH (I), wherein R is a linear or branched ether chain having from 1 to 15 atoms, and wherein the remainder of the hydroxyl-functional component comprises a first alkynol. The inclusion of an alkynol-ether reduces the viscosity of the composition without compromising its performance. The inventive alternative polyurethane compositions may find use in providing coatings, adhesives, sealants, films, elastomers, castings, foams, and composites.Type: GrantFiled: November 25, 2019Date of Patent: January 30, 2024Assignee: The University of Southern MississippiInventors: Robson F. Storey, Alan Ekin, R. Hunter Cooke, III, Jie Wu
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Patent number: 11879032Abstract: The present invention relates to reaction products containing urethane groups and urea groups, containing at least one species of general formula (I), to a method for producing said reaction products, to the use of said reaction products as wetting agents, dispersants, dispersion stabilizers, and/or adhesion promoters, and to compositions that contain the reaction products containing urethane groups and urea groups.Type: GrantFiled: April 21, 2022Date of Patent: January 23, 2024Assignee: BYK-Chemie GmbHInventors: Andreas Okkel, Wolfgang Pritschins, Michael Bessel, Irina Giebelhaus, Marcus Meichsner, Monika Roch
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Patent number: 11873367Abstract: Novel polymers are depolymerizable by metathesis of a cleavable unit. As an example, a series of linear and crosslinked polyurethanes were prepared that can be selectively depolymerized under mild conditions. Two unique polyols were synthesized bearing unsaturated units in a configuration designed to favor ring-closing metathesis to five- and six-membered cycloalkenes. These polyols were co-polymerized with toluene diisocyanate to generate linear polyurethanes and trifunctional hexamethylene- and diphenylmethane-based isocyanates to generate crosslinked polyurethanes. The polyol design is such that the ring-closing metathesis reaction cleaves the backbone of the polymer chain. Upon exposure to dilute solutions of Grubbs' catalyst under ambient conditions, the polyurethanes were rapidly depolymerized to low molecular weight, soluble products bearing vinyl and cycloalkene functionalities. These functionalities enabled further re-polymerization by traditional strategies for polymerization of double bonds.Type: GrantFiled: April 29, 2021Date of Patent: January 16, 2024Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Brad Howard Jones, Chad Lynn Staiger
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Patent number: 11859044Abstract: Provided are a composition capable of forming a cured product with excellent hardness, scratch resistance, chemical resistance, and flexibility; and a polyisocyanate compound that can be used as a curing agent for the composition. The polyisocyanate compound is represented by Formula (1), wherein R1 to R3 are identical or different and are a group represented by Formula (1a), wherein L1 and L2 are identical or different and represent an alkylene group having from 1 to 10 carbons, m represents a number of 0 or greater, L3 represents a divalent hydrocarbon group having from 4 to 18 carbons, and X represents an isocyanate group or a blocked isocyanate group blocked with a blocking agent, where m is not simultaneously 0 for R1 to R3, and the bond with the wavy line bonds to a nitrogen atom in Formula (1). In addition, the composition contains a polyisocyanate compound and a polyacrylic polyol.Type: GrantFiled: February 17, 2021Date of Patent: January 2, 2024Assignee: DAICEL CORPORATIONInventors: Takashi Konno, Jun Watanabe, Shintarou Hatanaka
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Patent number: 11845831Abstract: Related are a high-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether and a preparation method. During preparation, an allyl alcohol raw material and a supported catalyst Rb-NHPA are firstly added into a high-pressure reaction kettle, and it is heated after being replaced with a nitrogen gas; then after the internal temperature of the reaction kettle is raised to a reaction temperature, an ethylene oxide (EO) and propylene oxide (PO) mixture is continuously fed for a reaction; and finally, after the internal temperature of the reaction kettle is reduced, an acetic acid is dropwise added into the reaction kettle so that the crude product of the high-molecular weight allyl alcohol polyoxyethylene polyoxypropylene ether is neutralized to be neutral. The refining process of a polyether is omitted, the process flow is greatly simplified, and the process time is effectively saved. In addition, the supported catalyst Rb-NHP may be recycled.Type: GrantFiled: December 6, 2022Date of Patent: December 19, 2023Assignees: Zhejiang Huangma Technology Co., Ltd., Zhejiang Huangma Shangyi New Material Co., Ltd., Zhejiang Lukean Chemical Co., Ltd., Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd.Inventors: Weisong Wang, Yifeng Jin, Majishi Wang, Dinglian Ma, Ran Kou, Hongjun Gao, Qingmei Wan
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Patent number: 11845886Abstract: A moisture curable polyurethane hot melt adhesive composition and a process for making the same are disclosed. The moisture curable polyurethane hot melt adhesive composition includes an isocyanate-terminated polyurethane prepolymer that is the reaction product of a diisocyanate monomer component that includes at least 20% by weight asymmetrical diisocyanate monomer based on the weight of the diisocyanate monomer component and symmetrical diisocyanate monomer, at least one polyol having a number average molecular weight greater than 1000 g/mole, a monofunctional compound that includes one isocyanate-reactive group and has a molecular weight no greater than 400 g/mole, and a multifunctional compound that includes at least two isocyanate-reactive groups and has a molecular weight no greater than 400 g/mole.Type: GrantFiled: June 25, 2020Date of Patent: December 19, 2023Assignee: H.B. Fuller CompanyInventors: Brian W. Carlson, Sudipto Das, Daniel J. Van Dyke, Matthias E. Gurr, Rituparna Paul