From Organic Oxygen-containing Reactant Patents (Class 528/425)
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Patent number: 12202928Abstract: Embodiments of the present disclosure are directed towards isocyanate reactive compositions that include a polyol and tris(4-hydroxyphenyl)methane alkoxylate.Type: GrantFiled: January 30, 2020Date of Patent: January 21, 2025Assignee: Dow Global Technologies LLCInventors: Christopher S. Letko, Weijun Zhou, Thomas P. Willumstad
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Patent number: 12146022Abstract: This invention relates to a polyol component P), to a process for preparing rigid polyurethane foams by using said polyol component P) and also to the rigid polyurethane foams themselves.Type: GrantFiled: March 23, 2018Date of Patent: November 19, 2024Assignee: BASF SEInventors: Sirus Zarbakhsh, Johann Klassen, Mark Elbing
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Patent number: 12030833Abstract: A method for producing a hetero-type monodisperse polyethylene glycol, which includes (A) carrying out a nucleophilic substitution reaction between a compound of formula (2) and a compound of formula (3) so as to satisfy expression (F1) to obtain a compound of formula (4), (B) of carrying out a Michaels addition reaction of a compound of formula (5) to the compound of formula (4) at a temperature condition of 10° C. or lower to obtain a compound of formula (6), (C) detritylating or debenzylating the compound of the formula (6) to obtain a reaction product containing a compound of formula (7), (D) purifying the compound of formula (7) from the reaction product, (E) reacting the compound of formula (7) with phthalimide and performing dephthalimidation to obtain a compound of formula (8), and (F) subjecting the compound of formula (8) to an acid hydrolysis treatment to obtain a compound represented by formula (1).Type: GrantFiled: March 25, 2020Date of Patent: July 9, 2024Assignee: NOF CORPORATIONInventors: Akihide Onozawa, Takashi Ichikawa
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Patent number: 12016974Abstract: Embodiments of the present disclosure provide for treated articles of tubing having anti-fouling characteristics, methods of making treated articles of tubing, and the like. Disclosed herein are treated articles of tubing impregnated with a silicone oil and a nitric oxide release agent. Also described are methods for preparing a treated article of tubing and methods for delivering a pharmaceutically acceptable fluid to a subject in need thereof, wherein the fluid is transferred from a fluid source through treated articles of tubing to the subject.Type: GrantFiled: August 9, 2021Date of Patent: June 25, 2024Assignee: UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.Inventors: Hitesh Handa, Marcus Goudie
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Patent number: 11845862Abstract: Provided are strain-hardened polymers. The polymers may include a plurality of polyether units (e.g., isotactic polypropylene oxide units) and one or more crystalline domains. The strain-hardened polymers may have a higher initial engineering yield stress and/or enthalpy of fusion than native polymer (e.g., polypropylene oxide that has not been strain-hardened). The strain-hardened polymers may be made by catalytic methods using bimetallic catalysts. Also provided are uses of the strain-hardened polymers.Type: GrantFiled: February 22, 2021Date of Patent: December 19, 2023Assignee: Cornell UniversityInventors: Geoffrey W. Coates, Bryce M. Lipinski, Lilliana S. Morris
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Patent number: 11760867Abstract: The present disclosure provides compositions and products formed therefrom. In particular, the disclosure provides polymer compositions and hydrogel-latex compositions in particular. Such compositions can include a water-soluble polymer, a natural or synthetic rubber latex, and a rheological stabilizer. The present disclosure further provides products and articles that include a coating layer of the polymer composition on at least a portion of a surface thereof. The coating formed of the polymer composition can impart improved properties to the product or article, such as improved moisture absorption, improved lubricity, and the like.Type: GrantFiled: December 17, 2020Date of Patent: September 19, 2023Assignee: Church & Dwight Co., Inc.Inventors: Jon Toliver, Rajesh Ranjan, Muthiah Thiyagarajan
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Patent number: 11685863Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.Type: GrantFiled: February 14, 2020Date of Patent: June 27, 2023Assignee: MERCK PATENT GMBHInventors: Helmut Haensel, Qiong Tong, Rocco Fortte, Edward Plummer, Thomas Eichhorn
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Patent number: 11629225Abstract: Processes are described for producing an aromatic diamine-initiated polyether polyol having a measured OH number of 300 to 500 mg KOH/g and a viscosity at 25° C. of 5000 to 50,000 mPas. The processes include a first alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with a starter consisting essentially of aromatic diamine at a molar ratio of propylene oxide to aromatic diamine of 1.4:1 to 2.0:1 to form an alkoxylated product; and a second alkoxylation step in which an alkylene oxide consisting essentially of propylene oxide is reacted with the alkoxylated product, in the presence of an added catalyst, until the ratio of moles of propylene oxide added in the process to the moles of aromatic diamine added in the process is 4:1 to 9:1.Type: GrantFiled: May 26, 2020Date of Patent: April 18, 2023Assignees: Covestro LLC, Covestro Deutschland AGInventors: Jenna L. Caputo, Anthony R. Loveday, Edward P. Browne
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Patent number: 11500422Abstract: A window for a display device that includes: a base substrate; a first coating layer disposed on a first surface of the base substrate; and a second coating layer disposed on a second surface that overlaps the first surface of the base substrate, wherein the base substrate further includes a vertical surface perpendicular to the first surface and the second surface, and the first coating layer overlaps the vertical surface. The impact resistance of the window is improved through the first coating layer covering the rear surface and the vertical surface of the base substrate.Type: GrantFiled: June 11, 2019Date of Patent: November 15, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jinnyoung Heo, Kilsung Lee, Hoseok Sohn, Yongseok Lee, Dong Woon Lee, Yusik Jeon, Beomgyu Choi
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Patent number: 11130842Abstract: The invention relates to a method for producing polyether carbonate polyols, wherein (i) in a first step a polyether carbonate polyol is produced from one or more H-functional starter substances, one or more alkylene oxides, and carbon dioxide in the presence of at least one DMC catalyst, and (ii) in a second step the polyether carbonate polyol is chain-extended with a mixture of at least two different alkylene oxides in the presence of at least one DMC catalyst. The invention further relates to polyether carbonate polyols that contain a terminal mixed block of at least two alkylene oxides and to a method for producing soft polyurethane foams, wherein a polyol component containing a polyether carbonate polyol according to the invention is used.Type: GrantFiled: August 27, 2018Date of Patent: September 28, 2021Assignee: Covestro Deutschland AGInventors: Jörg Hofmann, Bert Klesczewski, Michael Schneider
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Patent number: 11015031Abstract: The present disclosure is generally directed to a fiber reinforced polyoxymethylene polymer composition having extremely low formaldehyde emission characteristics. The polymer composition generally contains reinforcing fibers in an amount from 3% to 70% by weight. The reinforcing fibers are combined with a polyoxymethylene polymer having a relatively high melt volume flow rate. The polymer composition can also contain a coupling agent for better integrating the reinforcing fibers into the polymer matrix. In addition to low emission properties, the polymer composition of the present disclosure displays excellent mechanical properties.Type: GrantFiled: June 13, 2018Date of Patent: May 25, 2021Assignee: Celanese Sales Germany GmbHInventor: Kirsten Markgraf
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Patent number: 10960053Abstract: A chemically modified human Growth Hormone (rhGH) prepared by attaching a transient linker which comprises a polyethylene glycol. The chemically modified protein may have a much longer lasting rhGH activity than that of the unmodified rhGH, enabling reduced dose and scheduling opportunities and the modified rhGH may not cause lipoatrophy. Also includes methods of use for the treatment and/or prevention of diseases or disorders in which use of growth hormone is beneficial.Type: GrantFiled: September 28, 2018Date of Patent: March 30, 2021Assignee: Ascendis Pharma Endocrinology Division A/SInventors: Harald Rau, Susanne Kindermann, Torben Leßmann, Grethe Norskov Rasmussen, Ulrich Hersel, Thomas Wegge, Kennett Sprogøe
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Patent number: 10946557Abstract: A release agent for vulcanized rubber molding is provided which has excellent mold releasing properties and washability. This release agent for vulcanized rubber molding contains an alkylene oxide adduct (A) of an active hydrogen group-containing compound having four active hydrogen atoms in the molecule, wherein the aforementioned alkylene oxide adduct (A) of an active hydrogen group-containing compound has a number average molecular weight of 5000-30000, and contains 50-95 mass % of an oxyethylene group.Type: GrantFiled: April 26, 2017Date of Patent: March 16, 2021Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Takuya Horie, Toshikazu Nabeshima, Kazunori Nakagawa
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Patent number: 10941248Abstract: The present invention provides, among other things, compounds that include a water-soluble and non-peptidic polymer as well as a maleimidyl group. The compounds are useful as, among other things, polymeric reagents.Type: GrantFiled: October 19, 2018Date of Patent: March 9, 2021Assignee: Nektar TherapeuticsInventors: Samuel P. McManus, Antoni Kozlowski, J. Milton Harris
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Patent number: 10882954Abstract: Disclosed are a novel monofunctional polyethylene glycol (PEG) and derivatives thereof. More particularly, one terminal of each of the monofunctional polyethylene glycol and derivatives thereof is modified with a tertiary alkoxy group.Type: GrantFiled: April 11, 2019Date of Patent: January 5, 2021Assignee: SUNBIO INC.Inventors: Kwang Nho, Min Jung Ahn, Junghoon Lee, Changmin Hyun
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Patent number: 10557054Abstract: Random copolymers, crosslinked thin films of the random copolymers and cell culture substrates comprising the crosslinked thin films are provided. Also provided are methods of making and using the copolymers, thin films and substrates. The copolymers are polymerized from glycidyl methacrylate monomers and vinyl azlactone monomers. The crosslinked thin films are substrate independent, in that they need not be covalently bound to a substrate to form a stable film on the substrate surface.Type: GrantFiled: August 1, 2017Date of Patent: February 11, 2020Assignee: Wisconsin Alumni Research FoundationInventors: Padma Gopalan, William L. Murphy, Samantha Kelly Schmitt
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Patent number: 10533022Abstract: An object of the present invention is to provide a silicon oligomer having a novel function that has not been achieved by a conventional condensation product of water and a tetraalkoxysilane. Provided are a silicon oligomer represented by the following formula (I) and a production method therefor: wherein R1 to R10 each independently is an alkyl group or a hydroxyalkyl group, each having 1 to 4 carbon atoms; X1 to X3 each independently is a group represented by the following formula (II); n is 0 or 1; and m is an integer of 1 to 3 when n is 0, and m is 1 when n is 1: wherein A is an alkylene group having 2 to 4 carbon atoms which may be branched, and 1 is an integer of 1 to 3.Type: GrantFiled: September 8, 2017Date of Patent: January 14, 2020Assignee: JCU CORPORATIONInventors: Daisuke Sadohara, Kenichi Nishikawa, Yasutake Nemichi, Hisayuki Toda, Hiroki Yasuda, Shinsuke Takagi, Christopher Ernest John Cordonier
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Patent number: 10472477Abstract: Provided are a polycarbonate resin composition for a thin optical component that has a high transmittance and a good hue, and a thin optical component. The polycarbonate resin composition for a thin optical component contains, per 100 mass parts of a polycarbonate resin (A), 0.1 to 4 mass parts of a polyalkylene glycol copolymer (B) having a linear alkylene ether unit (B1) given by general formula (I) and a branched alkylene ether unit (B2) selected from units given by general formulas (II-1) to (II-4), and 0.005 to 0.5 mass parts of a phosphorus stabilizer (C).Type: GrantFiled: December 14, 2015Date of Patent: November 12, 2019Assignee: Mitsubishi Engineering-Plastics CorporationInventor: Keisuke Tomita
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Patent number: 10131782Abstract: Reinforced polyoxymethylene compositions including 50 to 90 wt. % of a polyoxymethylene; 10 to 50 wt. % of glass fibers, wherein the weight of the polyoxymethylene and the glass fibers total 100 wt. %; 1 to less than 4.0 wt. % of a (meth)acrylic polymer additive, based on the total weight of the polyoxymethylene and the glass fibers; 0.1 to 5 wt. %, preferably 0.1 to 2.5 wt. % of a heat stabilizer; and 0.1 to 5 wt. % of an antioxidant, wherein the amounts of the (meth)acrylic polymer additive, the heat stabilizer, and the antioxidant are based on the total weight of the polyoxymethylene and the glass fibers.Type: GrantFiled: September 3, 2015Date of Patent: November 20, 2018Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Sangita Nandi, Susanta Mitra, Jelena Bozovic-Vukic, Abdulsattar Dawood
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Patent number: 9908971Abstract: A multi-arm polyethylene glycol derivative having a narrow molecular weight distribution represented by the formula (1): wherein, L represents a group selected from a linear or branched alkylene, arylene, or cycloalkylene group having two or more carbon atoms and combinations thereof, which may have an ether bond in a chain; X represents a dehydroxylation residue of a linear sugar alcohol having 5 or 7 carbon atoms; m is the number of polyethylene glycol chains bonded to X and represents 4 or 6; n is the average addition molar number of oxyethylene groups and represents an integer of 3 to 600; Y represents a single bond or an alkylene group as further defined herein; and Z represents a chemically reactive functional group.Type: GrantFiled: July 21, 2016Date of Patent: March 6, 2018Assignee: NOF CORPORATIONInventors: Hiroki Yoshioka, Midori Hirai, Hitoshi Nakatsuhara, Yuji Yamamoto
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Patent number: 9868819Abstract: The present invention provides a method for producing a polydioxolane, which includes polymerizing a 1,3-dioxolane compound represented by the formula (1) in the presence of a cationic catalyst and a sterically hindered phenol in an amount of 10 to 1,500 ppm, based on the 1,3-dioxolane compound. In the formula (1), R1 to R6 are the same or difference and each independently represents a hydrogen atom, an alkyl group, an aryl group, a hydroxyalkyl group, an alkyloxy group, or an aryloxy group.Type: GrantFiled: July 3, 2014Date of Patent: January 16, 2018Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Akira Ito, Hiroyuki Teramoto
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Patent number: 9630903Abstract: A process for preparing and separating a monodisperse polyethylene glycol, including: dissolving a starting material of polyethylene glycol into an organic solvent for reaction with a compound represented by general formula I under catalytic action of an alkaline substance, to prepare a mixture of derivatives of polyethylene glycol having different polarities; separating the mixture of derivatives of polyethylene glycol by means of silica gel column chromatography, to obtain a monodisperse derivative of polyethylene glycol; and hydrolyzing the derivative of polyethylene glycol to obtain a monodisperse polyethylene glycol. The starting material is industrially prepared polyethylene glycol with a wide source and low cost, which provides a guarantee for popularization and application of a monodisperse polyethylene glycol product.Type: GrantFiled: September 1, 2015Date of Patent: April 25, 2017Assignees: Nanjing Carbonde Tech. Co., Ltd., Opegchem Company, Inc.Inventors: Zhuhong Yang, YouQin Wu
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Patent number: 9217058Abstract: A method of preparing a polyacetal comprising polymerization of a mixture comprising a plurality of at least one bis-acetal monomer in the presence of an acid catalyst that promotes the metathesis of the acetal units. The bis-acetal can be formed from an acid catalyzed exchange between a mono-acetal monomer with a diol. The formation of the bis-acetal and the polyacetal can be carried out simultaneously. The diol can be isolated from a biorenewable source and the ultimate polyacetal is a degradable or biodegradable polymer.Type: GrantFiled: September 24, 2013Date of Patent: December 22, 2015Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Stephen A. Miller, Alexander G. Pemba
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Patent number: 9169350Abstract: The invention is directed to multi-functional N-maleimidyl polymer derivatives comprising a water soluble and non-peptidic polymer backbone having a terminal carbon, such as a poly(alkylene glycol), the terminal carbon of the polymer backbone being directly bonded to the nitrogen atom of a N-maleimidyl moiety without a linking group therebetween. The invention also provides two methods of preparing such linkerless N-maleimidyl polymer derivatives.Type: GrantFiled: February 20, 2015Date of Patent: October 27, 2015Assignee: Nektar TherapeuticsInventor: Xiaoming Shen
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Patent number: 9139691Abstract: The invention relates to a process for the preparation of polyether polyols with equivalent molecular weights of from 8,000 to 20,000 g/mol from one or more H-functional starter compounds and one or more alkylene oxides in the presence of a double metal cyanide catalyst, characterized in that the alkylene oxides are metered into the reactor in the course of from 15 to 23 h.Type: GrantFiled: June 26, 2012Date of Patent: September 22, 2015Assignee: BAYER INTELLECTUAL PROPERTY GMBHInventors: Klaus Lorenz, Jörg Hofmann, Horst Zwick, Christian Steinlein, Edward Browne
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Patent number: 9067874Abstract: The present invention relates to is coupling process for the preparation of polyether polyols starting from highly functional starter compounds that are solid or highly viscous under reaction conditions and monofunctional starter compounds that are liquid under reaction conditions with Zerewitinoff-active hydrogen atoms.Type: GrantFiled: March 9, 2011Date of Patent: June 30, 2015Assignee: Bayer Intellectual Property GmbHInventor: Klaus Lorenz
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Patent number: 9035018Abstract: The present invention relates to a furan-based curable compound derived from carbohydrate-based biomass, to a solvent-free curable composition, and to a method for preparing thereof, wherein the furan-based curable compound derived from biomass according to the present invention includes two epoxide functional groups bonded to at least one furan-based compound. The present invention may provide an environmentally friendly next-generation curable compound comprising a novel furan-based compound derived from biomass, which may be substituted for curable materials derived from oil resources, as a basic backbone, as well as a composition containing the same. According to the present invention, a curable material, which has a low contraction ratio during curing as compared to conventional radical-type curing materials, may be obtained, and a compound applied to the novel curing material may be prepared with a combination of excellent efficiency and cost-effectiveness.Type: GrantFiled: May 11, 2010Date of Patent: May 19, 2015Assignee: Korea Institute of Industrial TechnologyInventors: Jin Ku Cho, Sang Yong Kim, Do Hoon Lee, Bo Ra Kim, Baek Jin Kim, Jae Won Jung, Sang Hyeup Lee, Jae Soung Lee
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Patent number: 9023972Abstract: Polyester compositions and functionalized polyester compositions are provided along with methods of making the compositions as well as methods of using the compositions, for example as a tissue engineering bioscaffold and as a drug-delivery vehicle.Type: GrantFiled: January 25, 2011Date of Patent: May 5, 2015Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Hunghao Chu, Yadong Wang, Zhengwei You
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Patent number: 9023970Abstract: Preparation of bifunctional polyisobutenes in which isobutene or an isobutene-containing monomer mixture is polymerized in the presence of a Lewis acid and a compound of the formula I in which X is an acyl radical or the radical of an organic or inorganic acid group, R1 to R4 are identical or different and are hydrogen or a hydrocarbon radical.Type: GrantFiled: October 4, 2013Date of Patent: May 5, 2015Assignee: BASF SEInventors: Arno Lange, Matthias Kiefer, Matthias Kleiner, Szilard Csihony, Dietmar Posselt
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Patent number: 9012600Abstract: A method of polymerization for the preparation of conjugated polymers and copolymers comprising dioxypyrrole and/or dioxyfuran repeating units involves the halogen, N-haloimide, or N-haloamine promoted polymerization of monomers and/or oligomers comprising one or more dioxypyrrole and/or dioxyfuran units. The polymerization can be carried out over a wide range of temperatures and can be carried out with or without a solvent. The monomers allow the preparation of polymers having an oligomeric repeating unit comprising a conjugated unit other than a dioxypyrrole or dioxyfuran that is bound to two dioxypyrrole or dioxyfuran units.Type: GrantFiled: February 13, 2013Date of Patent: April 21, 2015Assignee: University of Florida Research Foundation, Inc.Inventors: John R. Reynolds, Frank Antonio Arroyave-Mondragon
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Patent number: 9006340Abstract: One aspect of the invention relates to a hydrogel comprising a non-natural polymer comprising a plurality of pendant nucleophilic groups and a crosslinker comprising at least two pendant electrophilic groups. Another aspect of the invention relates to a hydrogel comprising a non-natural polymer comprising a plurality of pendant electrophilic groups and a crosslinker comprising at least two pendant nucleophilic groups. Yet another aspect of the invention relates to a method for reducing lung volume in a patient comprising the step of administering a hydrogel composition as described herein. Further, hydrogels of the invention may be used to achieve pleurodesis, seal brochopleural fistulas, seal an air leak in a lung, achieve hemostasis, tissue sealing (e.g., blood vessels, internal organs), or any combination thereof. In certain embodiments, the compositions and methods described herein are intended for use in the treatment of patients with emphysema.Type: GrantFiled: May 21, 2013Date of Patent: April 14, 2015Assignee: Aeris Therapeutics, LLCInventors: Edward P. Ingenito, James A. Krom, Alexander Schwarz, Larry W. Tsai
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Patent number: 9000123Abstract: A polymer comprising: at least one structural unit (i) selected from the group consisting of a structural unit represented by formula (1) below and a structural unit represented by formula (2) below, wherein a terminal structure of said polymer is independently a structural unit represented by formula (5) below or a structural unit represented by formula (6) below.Type: GrantFiled: July 28, 2011Date of Patent: April 7, 2015Assignee: JSR CorporationInventors: Motoki Okaniwa, Takaaki Uno, Shintaro Fujitomi, Takashi Okada
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Patent number: 8992799Abstract: A polymer composite composed of a polymerized mixture of functionalized carbon nanotubes and monomer which chemically reacts with the functionalized nanotubes. The carbon nanotubes are functionalized by reacting with oxidizing or other chemical media through chemical reactions or physical adsorption. The reacted surface carbons of the nanotubes are further functionalized with chemical moieties that react with the surface carbons and selected monomers. The functionalized nanotubes are first dispersed in an appropriate medium such as water, alcohol or a liquefied monomer and then the mixture is polymerized. The polymerization results in polymer chains of increasing weight bound to the surface carbons of the nanotubes. The composite may consists of some polymer chains imbedded in the composite without attachment to the nanotubes.Type: GrantFiled: October 26, 2005Date of Patent: March 31, 2015Assignee: Hyperion Catalysis International, Inc.Inventors: Chunming Niu, Lein Ngaw
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Patent number: 8993709Abstract: The present invention relates to a process for the preparation of oxymethylene polymers, the oxymethylene polymers obtained therefrom as well as their use.Type: GrantFiled: July 11, 2012Date of Patent: March 31, 2015Assignee: Ticona GmbHInventors: Michael Hoffmockel, Michael Haubs, Jeurgen Lingnau, Horst Roeschert
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Patent number: 8969509Abstract: The devices and method are provided for detecting labeled and label-free analytes, such as nucleic acids and proteins, employing conjugated cationic, anionic and neutral polymers. The analytes can be immobilized on a solid support material. The solid support material can be disposed in the pre-fabricated patterns on a substrate. The chemical structures of the polymers employed by the various embodiments of the present invention are described herein.Type: GrantFiled: June 25, 2010Date of Patent: March 3, 2015Assignee: Sirigen, Inc.Inventors: Bin Liu, Chun Wang, Ruoyu Zhan, Glenn P. Bartholomew, Janice W. Hong, Jean M. Wheeler, Brent S. Gaylord
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Patent number: 8962779Abstract: In a method of forming a polyacetal or polyketal, a specific acetal- or ketal-containing bis(aryl)acetal is coupled with itself or a comonomer in the presence of a catalyst and a base. The polymerization reaction tolerates hydroxyl and other functional groups on the bis(aryl)acetal. Among other applications, the polyacetals and polyketals are useful components of photoresist compositions.Type: GrantFiled: July 16, 2013Date of Patent: February 24, 2015Assignee: Dow Global Technologies LLCInventor: Matthias S. Ober
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Patent number: 8962769Abstract: The present invention relates to novel polyimidothioethers-inorganic nanoparticle hybrid material, which exhibit good surface planarity, thermal dimensional stability, tunable refractive index, and high optical transparency upon forming into films. The present invention also relates to polyimidothioethers which is an intermediate for preparing the present hybrid material, and their preparation.Type: GrantFiled: June 27, 2012Date of Patent: February 24, 2015Assignee: National Taiwan UniversityInventors: Guey-Sheng Liou, Chia-Liang Tsai, Hung-Ju Yen, Wen-Chang Chen, Wen-Yen Chiu, Yang-Yen Yu
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Patent number: 8952123Abstract: The present invention is directed to polymeric materials comprising biodegradable, dioxanone-based copolymers and implantable devices (e.g., drug-delivery stents) formed of such materials. The polymeric materials can also contain at least one additional biocompatible moiety, at least one non-fouling moiety, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric materials are designed to improve the mechanical, physical and biological properties of implantable devices formed thereof.Type: GrantFiled: August 1, 2007Date of Patent: February 10, 2015Assignee: Abbott Cardiovascular Systems Inc.Inventor: Ni Ding
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Patent number: 8952125Abstract: A polyoxyethylene derivative represented by the formula (1): wherein a whole molecular weight of the polyoxyethylene derivative is 500 to 160,000; n is 5 to 3650; L1, L2, and L3 each independently represent an alkylene group, a phenylene group, an ester bond, an amide bond, an ether bond, a urethane bond, a carbonate bond, a secondary amino group, or a combination thereof; X represents a functional group capable of reacting with a bio-related substance; Y represents a hydrophilic group having plural hydroxyl groups made from a residual group of xylitol or volemitol or a residual group of polyglycerin of trimer to 31-mer; Z represents a residual group of a compound having 2 to 5 active hydrogen atoms; b and c are as follows: 1?b?4, 1?c?4, and 2?b+c?5; and d and e each independently are 0 or 1.Type: GrantFiled: March 30, 2012Date of Patent: February 10, 2015Assignee: NOF CorporationInventors: Hiroki Yoshioka, Takashi Matani, Yuji Yamamoto
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Patent number: 8946377Abstract: The present invention relates to a process for preparing high-functionality polyetherols by reacting at least one trifunctional or higher-functionality alcohol and if appropriate further di- and/or monofunctional alcohols and/or modifying reagents, with the aid of acidic catalysts, where the trifunctional or higher-functionality alcohol is not glycerol. The present invention further relates to high-functionality polyetherols obtainable by such a process and to the use of these high-functionality polyetherols as adhesion promoters, thixotropic agents, rheology modifiers of polymers, phase transfer reagents, micro- or nanocontainers for biologically active compounds, for example for active medical ingredients, biocides, herbicides or fungicides, as pigment dispersants, an additive in printing inks or as structural units for preparing polyaddition or polycondensation polymers or for treatment of seed.Type: GrantFiled: February 12, 2009Date of Patent: February 3, 2015Assignee: BASF SEInventors: Rolf Muelhaupt, Anne Fiedler, Fabian Schueler, Bernd Bruchmann, Markus Schuette, Daniel Schoenfelder
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Patent number: 8933192Abstract: The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts for the preparation of polyether carbonate polyols by catalytic copolymerisation of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances.Type: GrantFiled: January 18, 2011Date of Patent: January 13, 2015Assignee: Bayer Intellectual Property GmbHInventors: Christoph Gürtler, Stefan Grasser, Jörg Hofmann, Aurel Wolf
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Patent number: 8932662Abstract: The application discloses a method for the preparation (by extruding, injection molding or powder coating and subsequent cross-linking by irradiation with UV or visible light) of a medical device element involving a coating composition comprising: a) as the only polymer constituent(s), at least 50% by weight of poly(ethylene oxide)(s) optionally in combination with non-thermoplastic hydrophilic polymer(s), and b) low molecular weight scaffold(s) having a plurality of photo-initiator moieties covalently linked thereto and/or covalently incorporated therein, wherein the photo-initiator moieties constitute 0.01-20% by weight of the combined amount of the poly(ethylene oxide)(s), any non-thermoplastic hydrophilic polymers and the low molecular weight scaffolds.Type: GrantFiled: December 14, 2007Date of Patent: January 13, 2015Assignee: Coloplast A/SInventors: Bo Rud Nielsen, Carsten Hoj, Christian Benedikt Nielsen, Niels Jorgen Madsen
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Patent number: 8927684Abstract: Compounds of Formula (I): (formula (I)) where: X1 and X2 are the same or different and each is independently Cl, Br, I, a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; and, Y is O, S, Se, NR1, R1C—CR2 or R1C?CR2, wherein R1 and R2 are the same or different and are each independently H or an organic group, are useful as monomers to produce oligomers or polymers that are useful in organic electronic devices.Type: GrantFiled: November 3, 2010Date of Patent: January 6, 2015Assignee: National Research Council of CanadaInventors: Zhao Li, Jianfu Ding, Jianping Lu, Ye Tao
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Patent number: 8883932Abstract: New alkoxylation products which carry alkoxysilyl groups, mostly in the form of (poly)ether alcohols or copolymers comprising polyether blocks, which are characterized in that the reactivity of the hydroxyl function is reduced, and also to processes for preparing them and to their use.Type: GrantFiled: August 1, 2011Date of Patent: November 11, 2014Assignee: Evonik Degussa GmbHInventors: Bastian Matthias Brugger, Melanie Roessing, Matthias Lobert, Frank Schubert, Tammo Boinowitz, Michael Ferenz
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Patent number: 8841411Abstract: The present invention relates to polymers comprising repeating unit(s) of the formula (I), and their use in electronic devices. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high temperature stability of the emission color are observed, if the polymers according to the invention are used in polymer light emitting diodes (PLEDs).Type: GrantFiled: June 10, 2009Date of Patent: September 23, 2014Assignee: BASF SEInventors: Shin-Ichiro Kawano, Martin Baumgarten, Klaus Müllen, Peter Murer, Thomas Schäfer, Moussa Saleh
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Publication number: 20140275465Abstract: A process of purifying 1,4-butanediol (1,4-BDO) from a fermentation broth including separating solid materials, salts and water, and subjecting the resulting material to a two, three or four column distillation system, that can include a wiped film evaporator to produce a purified 1,4-butanediol.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Inventors: SVB Janardhan Garikipati, Michael Japs, Ishmael M. Sonico
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Publication number: 20140275475Abstract: A process for preparing olefin-CO copolymers with the steps of: providing a reactor; charging the reactor with a gaseous olefin and with CO, such that there is a first pressure p1 in the reactor; and reacting olefin with CO in the presence of a catalyst in the reactor. Prior to the reaction, either no CO is present in the reactor or the volume ratio of gaseous olefin to CO is ?90:10. During the reaction, gaseous olefin and CO are metered in at least intermittently, with an average over time of the volume ratio of the olefin metered into CO metered in of ?90:10.Type: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: Bayer Intellectual Property GmbHInventors: Thomas Ernst Müller, Christoph Gürtler, Walter Leitner, Henning Vogt, Saeeda Soomro
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Patent number: 8809489Abstract: Methods for preparing active carbonate esters of water-soluble polymers are provided. Also provided are other methods related to the active carbonate esters of water-soluble polymers, as well as corresponding compositions.Type: GrantFiled: May 15, 2013Date of Patent: August 19, 2014Assignee: Nektar TherapeuticsInventors: Antoni Kozlowski, Jon McKannan, Samuel P. McManus
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Patent number: 8802813Abstract: The invention relates to novel polymers comprising cyclohexylene groups which are especially suitable for use in birefringent films with negative optical dispersion, to novel formulations and polymer films comprising them, and to the use of the polymers, formulations and films in optical, electrooptical, electronic, semiconducting or luminescent components or devices.Type: GrantFiled: June 17, 2010Date of Patent: August 12, 2014Assignee: Merck Patent Gesellschaft Mit Beschrankter HaftungInventors: Kevin Adlem, Owain Llyr Parri, David Wilkes, Claire Topping
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Patent number: 8796399Abstract: Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and from greater than about 60 mol % to about 95 mol % structural units of formula 2 wherein R1, R2, and R3 are independently at each occurrence a halogen atom, a nitro group, a cyano group, a C1-C12 aliphatic radical, C3-C12 cycloaliphatic radical, or a C3-C12 aromatic radical; n, m, q are independently at each occurrence integers from 0 to 4; and Q is a C3-C20 cycloaliphatic radical, or a C3-C20 aromatic radical.Type: GrantFiled: January 30, 2012Date of Patent: August 5, 2014Assignee: Sabic Innovative Plastics IP B.V.Inventors: Daniel Joseph Brunelle, Daniel Steiger