Aryl-containing Reactant Patents (Class 528/331)
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Patent number: 11921401Abstract: Nonlinear optical chromophores having one or more diamondoid groups covalently attached to the chromophore, methods of making nonlinear optical chromophores, their use in thin films and electro-optical devices containing such nonlinear optical chromophores and thin films comprising the same.Type: GrantFiled: June 25, 2021Date of Patent: March 5, 2024Assignee: Lightwave Logic, Inc.Inventors: Cory Pecinovsky, Barry Johnson, Ginelle Ramann
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Patent number: 11705771Abstract: Electric machines, such as motors, may include an armature and a field component, and at least one of the armature or the field component may include a laminated structure having a plurality of slots into which a plurality of conductive elements are positioned. Additionally, a polymeric insulation layer may be formed directly on the laminated structure at least within the plurality of slots.Type: GrantFiled: August 10, 2021Date of Patent: July 18, 2023Assignee: Essex Furukawa Magnet Wire USA LLCInventors: Christopher Paul Richardson, Frederick McFarland, Daniel M. Saban, Allan R. Knerr
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Patent number: 11677031Abstract: The present application discloses an oxide semiconductor thin-film and a thin-film transistor consisted thereof. The oxide semiconductor thin-film is fabricated by doping a certain amount of rare-earth oxide (RO) as light stabilizer to metal oxide (MO) semiconductor. The thin-film transistor comprising a gate electrode, a channel layer consisted by the oxide semiconductor thin-film, a source and drain electrode; the thin-film transistor employing etch-stop structure, a back-channel etch structure or a top-gate self-alignment structure.Type: GrantFiled: August 2, 2019Date of Patent: June 13, 2023Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Miao Xu, Hua Xu, Weijing Wu, Weifeng Chen, Lei Wang, Junbiao Peng
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Patent number: 11525027Abstract: The present invention relates to a curable photochromic composition that includes: (a) a photochromic compound; and (b) a segmented polymer that includes active hydrogen groups, at least one first segment, and at least one second segment, in which, (i) each first segment independently includes a (meth)acrylic polymer segment, and (ii) each second segment independently includes at least one of, a polycarbonate segment, a polyester segment, a polyether segment, a polyurethane segment, and combinations of two or more thereof. The curable photochromic composition further includes (c) a curing agent having reactive functional groups that are reactive with the active hydrogen groups of the segmented polymer (a), in which the curing agent includes at least one of, a polyisocyanate, a polyisothiocyanate, and an aminoplast. The present invention also relates to photochromic articles that include at least one layer formed from the curable photochromic composition of the present invention.Type: GrantFiled: August 9, 2017Date of Patent: December 13, 2022Assignee: Transitions Optical, Ltd.Inventors: Stephen Robinson, Anthony Thomas Gestrich, Michael Frank Haley, David B. Knowles, Cathy A. Taylor, Elizabeth A. Zezinka
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Patent number: 11472929Abstract: This invention relates to a high molecular weight nylon powder composition for 3D printing, its preparation method and use. The composition comprises: 100 parts by weight of high-viscosity nylon powder, 1-5 parts by weight of a flow agent, and 0.1-1 parts by weight of an antioxidant; the high-viscosity nylon powder is one or more selected from nylon 6, nylon 66, nylon 11, nylon 12, nylon 612 and nylon 610; or the powder composition is obtained via polymerization reaction of the raw materials comprising the following components, based on the weight parts of lactam monomers or amide monomers: 100 parts by weight of lactam monomers or amide monomers, 0.005-1 parts by weight of a catalyst, and 0.1-1 parts by weight of an antioxidant.Type: GrantFiled: April 24, 2015Date of Patent: October 18, 2022Assignee: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCESInventors: Yongmei Ma, Kun Zheng, Jingnan Zhang, Xinyu Cao, Fusong Wang, Xuechun Lin, Wenhua Sun, Jian Xu, Jinyong Dong, Chuncheng Li, Wenxin Fu
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Patent number: 10703850Abstract: A resin composition contains: (a) a resin which constitutes a polymer having a structure represented by any one of the following general formulae (1) to (3) below and/or a copolymer having the structure; and (b) a basic compound, wherein R1 is a C4-C30 organic group, R2 is a divalent C4-C30 organic group, X is a sulfonic group, hydroxy group, or carboxy group, p is 1 to 4, and n is 2 to 100,000; wherein R3 is a C4-C30 organic group, R4 is a divalent C4-C30 organic group, Y is a sulfonic group, hydroxy group, or carboxy group, q is 1 to 4, and m is 2 to 100,000; wherein R5 represents a C4-C30 organic group, R6 is a divalent C4-C30 organic group, Z is a sulfonic group, hydroxy group, or carboxy group, r is 1 to 4, and l is 2 to 100,000.Type: GrantFiled: December 19, 2016Date of Patent: July 7, 2020Assignee: TORAY INDUSTRIES, INC.Inventors: Natsuko Chayama, Tomoyuki Yuba, Yuma Sugisaki
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Patent number: 10431251Abstract: The magnetic tape device includes a TMR head (reproducing head); and a magnetic tape including a magnetic layer including ferromagnetic powder, a binding agent, and fatty acid ester, in which Ra measured regarding a surface of the magnetic layer is equal to or smaller than 2.0 nm, full widths at half maximum of spacing distribution measured by optical interferometry regarding the surface of the magnetic layer before and after performing a vacuum heating with respect to the magnetic tape are greater than 0 nm and equal to or smaller than 7.0 nm, a difference between spacings before and after the vacuum heating is greater than 0 nm and equal to or smaller than 8.0 nm, and ?SFD (=SFD25° C.?SFD?190° C.) in a longitudinal direction of the magnetic tape is equal to or smaller than 0.50.Type: GrantFiled: March 14, 2018Date of Patent: October 1, 2019Assignee: FUJIFILM CorporationInventors: Eiki Ozawa, Norihito Kasada
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Patent number: 10410665Abstract: The magnetic tape device includes a TMR head (reproducing head); and a magnetic tape including a magnetic layer including ferromagnetic hexagonal ferrite powder, a binding agent, and fatty acid ester, in which an XRD intensity ratio obtained by an X-ray diffraction analysis of the magnetic layer by using an In-Plane method is 0.5 to 4.0, a vertical direction squareness ratio is 0.65 to 1.00, Ra measured regarding a surface of the magnetic layer is equal to or smaller than 2.0 nm, full widths at half maximum of spacing distribution measured by optical interferometry regarding the surface of the magnetic layer before and after performing a vacuum heating with respect to the magnetic tape are greater than 0 nm and equal to or smaller than 7.0 nm, and a difference between spacings before and after the vacuum heating is greater than 0 nm and equal to or smaller than 8.0 nm.Type: GrantFiled: March 14, 2018Date of Patent: September 10, 2019Assignee: FUJIFILM CorporationInventors: Eiki Ozawa, Norihito Kasada
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Patent number: 10410666Abstract: The magnetic tape device includes a magnetic tape including a magnetic layer; and a TMR head (reproducing head), in which an intensity ratio of a peak intensity of a diffraction peak of a (110) plane with respect to a peak intensity of a diffraction peak of a (114) plane of a hexagonal ferrite crystal structure obtained by an X-ray diffraction analysis of the magnetic layer by using an In-Plane method is 0.5 to 4.0, a vertical direction squareness ratio of the magnetic tape is 0.65 to 1.00, Ra measured regarding a surface of the magnetic layer is equal to or smaller than 2.0 nm, and a C—H derived C concentration calculated from a C—H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is 45 to 65 atom %.Type: GrantFiled: March 14, 2018Date of Patent: September 10, 2019Assignee: FUJIFILM CorporationInventors: Norihito Kasada, Eiki Ozawa
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Patent number: 10403317Abstract: The magnetic tape device includes a magnetic tape and a TMR head, in which the magnetic tape includes a non-magnetic support, and a magnetic layer including ferromagnetic powder and a binding agent on the non-magnetic support, the ferromagnetic powder is ferromagnetic hexagonal ferrite powder, an intensity ratio of a peak intensity Int(110) of a diffraction peak of a (110) plane with respect to a peak intensity Int(114) of a diffraction peak of a (114) plane of a hexagonal ferrite crystal structure obtained by an X-ray diffraction analysis of the magnetic layer by using an In-Plane method is 0.5 to 4.0, and a vertical direction squareness ratio of the magnetic tape is 0.65 to 1.00.Type: GrantFiled: March 14, 2018Date of Patent: September 3, 2019Assignee: FUJIFILM CorporationInventors: Norihito Kasada, Eiki Ozawa
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Patent number: 10395685Abstract: The magnetic tape device includes a TMR head (servo head); and a magnetic tape including a magnetic layer including ferromagnetic hexagonal ferrite powder, a binding agent, and fatty acid ester, in which an XRD intensity ratio obtained by an X-ray diffraction analysis of the magnetic layer by using an In-Plane method is 0.5 to 4.0, a vertical direction squareness ratio is 0.65 to 1.00, Ra measured regarding a surface of the magnetic layer is equal to or smaller than 2.0 nm, full widths at half maximum of spacing distribution measured by optical interferometry regarding a surface of the magnetic layer before and after performing a vacuum heating with respect to the magnetic tape are greater than 0 nm and equal to or smaller than 7.0 nm, and a difference between spacings before and after the vacuum heating is greater than 0 nm and equal to or smaller than 8.0 nm.Type: GrantFiled: March 14, 2018Date of Patent: August 27, 2019Assignee: FUJIFILM CorporationInventors: Eiki Ozawa, Norihito Kasada
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Patent number: 9457496Abstract: The present invention is directed toward transparent films prepared from soluble aromatic copolyamides with glass transition temperatures greater than 300 C. The copolyamides, which contain pendant carboxylic groups are solution cast into films using N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), or other polar solvents. The films are thermally cured at temperatures near the copolymer glass transition temperature. After curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant. The films are useful as flexible substrates for microelectronic devices.Type: GrantFiled: June 29, 2011Date of Patent: October 4, 2016Assignee: Akron Polymer Systems, Inc.Inventors: Limin Sun, Frank W. Harris, Jiaokai Jing, Haci B. Erdem, John D. Harvey, Dong Zhang
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Patent number: 9068042Abstract: The invention relates to an optically transparent polymer film or extrudate product made of a polymer composition comprising a semi-crystalline polyamide having a melting temperature of at least 270° C. or a blend of the semi-crystalline polyamide (A) and a second polymer (B), and optionally at least one additive, wherein the semi-crystalline polyamide (A) is present in an amount of more than 50 wt. %, relative to the total weight of the polymer composition, the polymer composition in the optically transparent polymer film or extrudate product has a melting temperature (Tm-C) in the range of 270-340° C., and wherein the film or a part of the extrudate product has a haze of less than 12% and a light transmittance, of at least 88% measured with the method according to ASTM D1003A.Type: GrantFiled: January 21, 2014Date of Patent: June 30, 2015Assignee: DSM IP ASSETS B.V.Inventors: Alexander Antonius Maria Stroeks, Rudy Rulkens, Lee Sanghoon, Sidiki Tamim Peter
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Publication number: 20150148517Abstract: A compound represented by Chemical Formula 1: wherein in Chemical Formula 1, R1 and R2 are the same or different, and are each independently an electron-withdrawing group, R3 to R6 are the same or different, and are each independently selected from a hydrogen, a substituted or unsubstituted C1 to C20 alkyl group, and a substituted or unsubstituted C6 to C20 aryl group, and n11 and n12 are the same or different, and are each independently an integer from 1 to 4.Type: ApplicationFiled: July 28, 2014Publication date: May 28, 2015Inventors: DMITRY Androsov, MIKHAIL Kovalev, EVGENY Kiryushchenkov, FEDOSYA Kalinina
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Publication number: 20150133609Abstract: Zwitterionic and mixed charge conducting polymers, surfaces modified to include the polymers, bulk constructs that include the polymers, and methods for using the polymers.Type: ApplicationFiled: November 12, 2014Publication date: May 14, 2015Applicant: University of Washington through its Center for CommercializationInventors: Shaoyi Jiang, Tao Bai
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Publication number: 20150094447Abstract: The invention relates to polymers comprising NOS agonists and one or more monomers selected from the group consisting of lactide, glycolide and epsiloncaprolactone, wherein the NOS agonist is incorporated as repeating monomer units into the body or backbone of the polymer are disclosed. The NOS agonist may comprise one or more carboxylic acid groups and one or more alkylhydroxy groups. In another embodiment, the NOS agonist may comprise a carboxylic acid group and an alkylhydroxy group that can be joined to form a lactone containing cyclic ring. In another embodiment, the NOS agonist comprises HMG CoA reductase inhibitor or statin.Type: ApplicationFiled: November 14, 2014Publication date: April 2, 2015Applicant: PALMETTO PHARMACEUTICALS LLCInventor: Wayne H. KAESEMEYER
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Patent number: 8986846Abstract: A thermosetting oligomer or thermosetting polymer is provided. The thermosetting oligomer or thermosetting polymer contains repeating units, each of which has at least one thermosetting functional group in the side chain and is represented by Formula 1: where repeating units include X1, A1, and Y1 subunits, sidechain units include linking unit L and thermosetting functional group Z, and n is an integer from 1 to 4. The thermosetting oligomer or thermosetting polymer has a low coefficient of thermal expansion and high or no glass transition temperature, stiffness, processability, heat resistance and mechanical properties. The thermosetting oligomer or thermosetting polymer is highly soluble, wettable and dimensionally stable and is suitable for use in films, prepregs and printed circuit boards. Further provided are a thermosetting resin composition including the thermosetting oligomer or thermosetting polymer and a printed circuit board using the composition.Type: GrantFiled: June 23, 2009Date of Patent: March 24, 2015Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae Jun Lee, Mahn Jong Kim, Kwang Hee Kim
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Patent number: 8980326Abstract: The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and micelles comprising the same.Type: GrantFiled: September 1, 2010Date of Patent: March 17, 2015Assignee: Intezyne Technologies, Inc.Inventors: Kevin N. Sill, Habib Skaff, Kurt Breitenkamp
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Patent number: 8952106Abstract: The present invention is directed to linear, biodegradable polyesteramide (PEA) polymers synthesized with repeating units derived from aminophenol esters and diacids. These PEAs have a monomer repeat represented by as well as a variety of uses to coat, form or comprise medical devices, combination medical devices and pharmaceutical compositions, including sustained release formulations.Type: GrantFiled: February 13, 2013Date of Patent: February 10, 2015Assignee: TYRX, Inc.Inventors: Arthur Schwartz, Satish Pulapura, Sarita Nethula, Archana Rajaram, Arikha Moses
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Patent number: 8901347Abstract: Disclosed are novel bioabsorbable and biodegradable monomer compounds, bioabsorbable and biodegradable polymers therefrom, and methods of making such monomers and polymers, which are useful in pharmaceutical delivery systems, tissue engineering applications, tissue adhesives products, implantable medical devices, foams and reticulated foams for wound healing and drug delivery, bone hemostats and bone void fillers, adhesion prevention barriers, meshes, filters, stents, medical device coatings, pharmaceutical drug formulations, consumer product and cosmetic and pharmaceutical packaging, apparel, infusion devices, blood collection tubes and devices, other medical tubes, skin care products, and transdermal drug delivery materials.Type: GrantFiled: October 18, 2011Date of Patent: December 2, 2014Assignee: Bezwada Biomedical, LLCInventor: Rao S. Bezwada
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Patent number: 8895690Abstract: A copolyamide resin for molding including a diamine component which includes two or more diamines and a dicarboxylic acid component. The diamine component includes 70 mol % or more of a xylylenediamine which includes 20 mol % or more of p-xylylenediamine and the dicarboxylic acid component includes 70 mol % or more of a straight-chain aliphatic dicarboxylic acid having 6 to 18 carbon atoms. The copolyamide resin contains particles having a major diameter of 50 ?m or more in an amount of 1000 particles/g or less, the particles being made of a polyamide having a melting point higher than that of the copolyamide resin by 20° C. or more when measured by a differential scanning calorimetry. The copolyamide resin has very uniform and stable properties and is excellent in any of mechanical properties, heat resistance, chemical and physical properties, and molding properties. An efficient production method of the copolyamide resin, its resin composition, and its molded article are also described.Type: GrantFiled: November 24, 2010Date of Patent: November 25, 2014Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Tomomichi Kanda, Minoru Kikuchi, Katsumi Shinohara, Hideyuki Kurose
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Patent number: 8846845Abstract: Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from: or the corresponding diamines or diisocyanates thereof, wherein each X independently represents —CH2COO—, —CH(CH3)COO—, —CH2CH2OCH2COO—, —CH2CH2CH2CH2CH2COO—, —(CH2)yCOO— where y is 2 to 4 or 6 to 24, or —(CH2CH2O)z?CH2COO— where z? is 2 to 24; each Y represents —COCH2O—, —COCH(CH3)O—, —COCH2OCH2CH2O—, —COCH2CH2CH2CH2CH2O—, —CO(CH2)mO— where m is 2 to 4 or 6 to 24, or —COCH2O(CH2CH2O)n— where n is 2 to 24; R? is hydrogen, benzyl or straight-chained or branched alkyl; p is 1 to 4; and Rn represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and —NO2, which is attached directly to an aromatic ring or attached through an aliphatic chain. Absorbable polymers prepared from these compounds are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention and other implantable medical devices.Type: GrantFiled: February 22, 2012Date of Patent: September 30, 2014Assignee: Bezwada Biomedical, LLCInventor: Rao S. Bezwada
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Publication number: 20140148571Abstract: Disclosed are a diamine represented by the following formula, a polyimide and a polyamide using the same as the raw material, a cyclized product thereof, and a method for producing the same. In the formula, A represents a single bond, an ether bond, a sulfide bond, CO, CH2, SO, SO2, C(CH3)2, NHCO or C(CF3)2, or a bivalent group having an aliphatic ring, a hetero ring or an aromatic ring, R1 represents a C1-4alkyl group or a halogen group, and each of “a” and “b” independently represents an integer of 0-2, and 1?a+b?4. The polyimide and the polyamide are a fluorescent polyimide and a fluorescent polyamide that are easily soluble in organic solvents to the extent that they can be formed into a film by a wet process when making an optical device, that have heat resistance and strength when formed into a film, and that have superior fluorescent characteristics.Type: ApplicationFiled: April 23, 2013Publication date: May 29, 2014Applicant: Central Glass Company, LimitedInventor: Central Glass Company, Limited
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Publication number: 20140114040Abstract: This invention comprises a semiconducting polymer having a permittivity greater than 3.4 at 1000 Hz and a charge mobility in the pure state greater than 10?7 cm2V?1s?1 and more preferably greater than 10?6 cm2V?1s?1. Preferred polymers include repeating units of triarylamines which have specific cyano and/or alkoxy substitution. They are suitable for use in electronic components such as organic thin film transistors.Type: ApplicationFiled: May 24, 2012Publication date: April 24, 2014Applicants: Peakdale Molecular Limited, Centre for Process Innovation LimitedInventors: Beverley Anne Brown, Simon Dominic Ogier, Marco Palumbo, Keri McCall, Raymond Fisher, Michael James Simms, Neil David Forrest, Aaron James Page, Stuart Edmund Willetts, Julie Diane Ellis Jones
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Publication number: 20140105849Abstract: Aniline copolymers and the synthesis thereof for use as antimicrobial (antibacterial, antifungal or antiviral material) material for the manufacture of antimicrobial objects, suitable for use in the health, food, packaging, water, paint, wood, textile, poultry, glass, paper, rubber, ceramic, seafood, sports, plastic and agricultural industries. The copolymer may be for example (A): where for example R3=H5—CO2H, —CO2Me, or CO2Et, R is typically H or a C1-C6 alkyl, x is an integer between 1 and 0 and m indicates the degree of polymerization. Preferred copolymers are copolymers of aniline with 3-aminobenzoic acid, 2-amonobenzoic acid and ethyl 3-aminobenzoate.Type: ApplicationFiled: April 26, 2013Publication date: April 17, 2014Applicant: Auckland UniServices LimitedInventor: Auckland UniServices Limited
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Publication number: 20140106217Abstract: In an aspect, a binder for a lithium battery electrode, a binder composition including the binder, and a lithium battery including the binder are provided.Type: ApplicationFiled: March 14, 2013Publication date: April 17, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Beom-Wook Lee, Hye-Sun Jeong, Hye-Ran Lee
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Publication number: 20140072513Abstract: The present invention relates to degradable polyacetal polymers having a C(O)—(CH2CH2O)n—R5 or a saccharide attached to amine radical of the backbone of the polymer, their polymer-active agent conjugates and their preparation processes, to compositions, and hydrogels containing them, as well as their use in therapy, diagnostic imaging and cosmetics.Type: ApplicationFiled: April 3, 2012Publication date: March 13, 2014Inventor: Oscar Peña Gulin
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Patent number: 8653225Abstract: A polyamide compound containing from 25 to 50 mol % of a diamine unit that contains at least 50 mol % of an alicyclic diamine unit represented by the following general formula (I); from 25 to 50 mol % of a dicarboxylic acid unit that contains a linear aliphatic dicarboxylic acid unit represented by the following general formula (II-1) and/or an aromatic dicarboxylic acid unit represented by the following general formula (II-2) in an amount of at least 50 mol % in total; and from 0.1 to 50 mol % of a constituent unit represented by the following general formula (III): wherein, in the formulae, n indicates an integer of from 2 to 18; Ar represents an arylene group; and R represents a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.Type: GrantFiled: February 23, 2011Date of Patent: February 18, 2014Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Takafumi Oda, Ryoji Otaki, Tsuneaki Masuda
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Patent number: 8642716Abstract: The present invention relates to branched polyamides comprising unsaturated ends comprising: at least one unit originating from a multifunctional monomer (A) having more than two functional groups, at least sequences resulting from the condensation, in the presence of at least one unsaturated monoacid, either of at least two different lactams, or of at least one lactam, at least one dicarboxylic acid and at least one diamine, or of a lactam or of an ?,?-aminocarboxylic acid, or of a diamine and of a diacid. The invention also relates to thermofusible adhesives comprising these branched polyamides comprising unsaturated ends, and to the use of these branched polyamides comprising unsaturated ends in sheathing electrical cables.Type: GrantFiled: April 25, 2005Date of Patent: February 4, 2014Assignee: Arkema FranceInventors: Annett Linemann, Thierry Briffaud
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Patent number: 8603634Abstract: This invention relates to poly(ester amide)s (PEAs) comprising inactivated terminal amino and carboxyl groups, methods of synthesizing the inactivated PEAs and uses for them in the treatment of vascular diseases.Type: GrantFiled: March 23, 2009Date of Patent: December 10, 2013Assignee: Abbott Cardiovascular Systems Inc.Inventors: Jessica Renee DesNoyer, Stephen Dirk Pacetti, Vidya Nayak, Lothar Kleiner
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Patent number: 8574467Abstract: A benzo-fused-heterocyclic elongated dye having a superior molecular hyperpolarizability and yet having an acceptably-low optical absorbance of light near 1550 nm in wavelength, which is an important optical communication band for telecommunication applications.Type: GrantFiled: July 23, 2012Date of Patent: November 5, 2013Assignee: The United States of America as Represented by the Secretary of the NavyInventors: Matthew C. Davis, Andrew P. Chafin, William Lai, Geoffrey A. Lindsay
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Patent number: 8574468Abstract: A benzo-fused-heterocyclic elongated dye having a superior molecular hyperpolarizability and yet having an acceptably-low optical absorbance of light near 1550 nm in wavelength, which is an important optical communication band for telecommunication applications.Type: GrantFiled: July 24, 2012Date of Patent: November 5, 2013Assignee: The United States of America as Represented by the Secretary of the NavyInventors: Matthew C. Davis, Andrew P. Chafin, Geoffrey A. Lindsay
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Publication number: 20130274412Abstract: The present invention relates to a polymer composition that includes a polymer having at least one polymer segment represented by the following Formula (I), With reference to Formula (I): M independently for each w is a residue of a monomer; ? is a residue of a mechanochromic compound having at least two reactive groups that are each independently bonded to one monomer residue M; w, independently for each z, is an integer of at least 1; and z is an integer of at least 2.Type: ApplicationFiled: March 15, 2013Publication date: October 17, 2013Inventors: Charles R. Hickenboth, Cynthia Kutchko, Matthew J. Kryger
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Patent number: 8487069Abstract: Disclosed is a liquid crystal photo-alignment agent including polyamic acid or a polyimide including a first structural unit derived from a photo-diamine represented by the following Chemical Formula 1, a second structural unit represented by the following Chemical Formula 2 or a polymer compound combination thereof, and a solvent. In Chemical Formulae 1 and 2, each substituent is the same as defined in the detailed description.Type: GrantFiled: September 1, 2010Date of Patent: July 16, 2013Assignee: Cheil Industries Inc.Inventors: Jae-Deuk Yang, Hee-Young Oh, Myoung-Youp Shin, Mi-Ra Im, Guk-Pyo Jo, Eun-Ha Kim
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Patent number: 8445603Abstract: The present invention is directed to linear, biodegradable polyesteramide (PEA) polymers synthesized with repeating units derived from aminophenol esters and diacids. These PEAs have a monomer repeat represented by as well as a variety of uses to coat, form or comprise medical devices, combination medical devices and pharmaceutical compositions, including sustained release formulations.Type: GrantFiled: September 22, 2009Date of Patent: May 21, 2013Assignee: TYRX, Inc.Inventors: Arthur Schwartz, Satish Pulapura, Sarita Nethula, Archana Rajaram, Arikha Moses
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Publication number: 20130123144Abstract: Polymer compositions having the chemical structure: as well as monomer compositions for producing said polymers are described. Methods for preparing these polymers and combinatorial libraries of these polymers are also described.Type: ApplicationFiled: May 6, 2011Publication date: May 16, 2013Applicant: CORNELL UNIVERSITYInventors: David Putnam, Lihong Huang
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Publication number: 20130112409Abstract: The invention pertains to improved proppant particles comprising an aromatic polycondensation polymer having a glass transition temperature (Tg) of at least 120° C. when measured according to ASTM 3418 [polymer (P)] and a method of treating a subterranean formation using said proppant particles.Type: ApplicationFiled: November 2, 2012Publication date: May 9, 2013Applicant: SOLVAY SPECIALTY POLYMERS USA, LLCInventor: SOLVAY SPECIALTY POLYMERS USA, LLC
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Patent number: 8420862Abstract: Highly pure 2,3,5,6-tetraaminotoluene species are produced by chemically reducing undesirable oxidation byproducts. The 2,3,5,6-tetraaminotoluene species are then used in the manufacture of superior high-performance polybenzimidazole polymers.Type: GrantFiled: December 10, 2009Date of Patent: April 16, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Rajiv Dhawan, Joachim C. Ritter
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Patent number: 8349991Abstract: The present invention relates to amphiphilic polymers, and micelles and compositions comprising the same, and their use in a variety of biological settings, including imaging, targeting drugs, or a combination thereof for diagnostic and therapeutic purposes.Type: GrantFiled: April 17, 2006Date of Patent: January 8, 2013Assignees: Massachusetts Institute of Technology, University of Massachusetts LowellInventors: Clark K. Colton, Arthur Watterson, Rajesh Kumar, Virinder S. Parmar, Robert Fisher, Jayant Kumar
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Publication number: 20120329944Abstract: The invention relates to a semiaromatic polyamide, to the process for preparing same, to a composition comprising such a polyamide and to the uses thereof. This polyamide consists of 70 to 95 mol % of a first repeating unit obtained from the polycondensation of at least one first linear or branched aliphatic diamine comprising from 10 to 36 carbon atoms and of at least one aromatic dicarboxylic acid, and of 5 to 30 mol % of a second repeating unit obtained from at least one lactam and/or from at least one aminocarboxylic acid comprising from 9 to 12 carbon atoms.Type: ApplicationFiled: December 21, 2010Publication date: December 27, 2012Applicant: Arkema FranceInventors: Thierry Briffaud, Vincent Ferreiro
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Patent number: 8309642Abstract: A method for dissolving an aramid polymer in sulfuric acid using a double shaft kneader, comprising the steps: dosing the polymer and the solvent into the kneader, mixing the polymer and the solvent to dissolve the polymer in the solvent for obtaining a solution, degassing the solution to obtain a spin dope, and transporting the spin dope out of the kneader, wherein the polymer is an aramid polymer and the solvent is sulfuric acid, and whereby the aramid polymer is dosed into the kneader prior to dosing the sulfuric acid into the kneader.Type: GrantFiled: January 30, 2008Date of Patent: November 13, 2012Assignee: Teijin Aramid B.V.Inventor: Bernardus Maria Koenders
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Patent number: 8268937Abstract: The invention pertains to an aramid copolymer composition comprising an aramid copolymer having at least one arylene carboxylic acid moiety and at least one hydroxyarylene moiety, or comprising an aramid copolymer having at least one arylene carboxylic acid moiety or having at least one hydroxyarylene moiety, and a crosslinker agent. The invention further relates to crosslinked copolymers derived thereof and shaped articles comprising said crosslinked copolymers.Type: GrantFiled: September 1, 2007Date of Patent: September 18, 2012Assignee: Teijin Aramid B.V.Inventors: Johannes Bos, Sandra Corien Noordewier
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Publication number: 20120158127Abstract: Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from: or the corresponding diamines or diisocyanates thereof, wherein each X independently represents —CH2COO—, —CH(CH3)COO—, —CH2CH2OCH2COO—, —CH2CH2CH2CH2CH2COO—, —(CH2)yCOO— where y is 2 to 4 or 6 to 24, or —(CH2CH2O)z?CH2COO— where z? is 2 to 24; each Y represents —COCH2O—, —COCH(CH3)O—, —COCH2OCH2CH2O—, —COCH2CH2CH2CH2CH2O—, —CO(CH2)mO— where m is 2 to 4 or 6 to 24, or —COCH2O(CH2CH2O)n— where n is 2 to 24; R? is hydrogen, benzyl or straight-chained or branched alkyl; p is 1 to 4; and Rn represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and —NO2, which is attached directly to an aromatic ring or attached through an aliphatic chain. Absorbable polymers prepared from these compounds are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention and other implantable medical devices.Type: ApplicationFiled: February 22, 2012Publication date: June 21, 2012Applicant: BEZWADA BIOMEDICAL, LLCInventor: Rao S. Bezwada
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Publication number: 20120121904Abstract: The invention relates to a titanium based polycarboxylate inorganic-organic hybrid solid material that has a pseudo-cubic crystalline structure, to a method for preparing the same using a solvo-thermal procedure, and to the uses thereof in particular for the storage of gases, the adsorption of liquids, the separation of liquids or gases, and the applications thereof in optics or catalysis, in the biomedical (controlled release drug), cosmetic fields, etc.Type: ApplicationFiled: February 18, 2010Publication date: May 17, 2012Inventors: Christian Serre, Gérard Ferey, Clément Sanchez, Laurence Rozes, Meenakshi Dan, Théo Frot
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Patent number: 8106142Abstract: Polyacetylinic oligomers suitable for high-temperature polymer-matrix composites are provided. The polyacetylinic oligomers have the formula: D-A-D wherein D is an endcap including at least one crosslinking functionality; and A is backbone selected from the group consisting of imidesulfone; ether; ethersulfone; amide; imide; ester; estersulfone; etherimide; amideimide; oxazole; oxazole sulfone; thiazole; thiazole sulfone; imidazole; and imidazole sulfone. At least one ethynyl functional group, however, is incorporated into the backbone such that crosslinking is not only realized at the endcaps but also at the ethynyl groups within the backbone of the oligomer itself.Type: GrantFiled: October 20, 2009Date of Patent: January 31, 2012Assignee: The Boeing CompanyInventors: Thomas K. Tsotsis, Norman R. Byrd
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Publication number: 20110286959Abstract: Random three- and four-amino acid copolymers having lengths of 14-, 35- and 50-amino acid residues are provided. Fifty-mers of FEAK were effective inhibitors of MBP 85-99- or proteolipid protein (PLP) 40-60-specific HLA-DR-2-restricted T cell clones. These copolymers efficiently suppressed the mouse disease EAE, which was induced in a susceptible SJL/J (H-2s) strain of mice with either whole spinal cord homogenate (WSCH) or with the encephalitogenic epitope PLP 139-151 (SEQ ID NO:4). YFAK 50-mer having a molar ratio of about Y 0.8:F 0.2 inhibited binding of biotinylated MBP 85-99 epitope to HLA-DR-2 molecules more efficiently than either unlabeled MBP 85-99 or Copaxone®. YFAK and FAK copolymers efficiently suppressed EAE induced in SJL/J (H-2S) mice with the encephalitogenic epitope PLP 139-151.Type: ApplicationFiled: July 12, 2011Publication date: November 24, 2011Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGEInventors: Jack L. Strominger, Masha Fridkis-Hareli
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Patent number: 8063168Abstract: An oligomer having di-phenylethynyl endcaps is disclosed. The capped oligomer has the formula: D-A-D wherein D is a di-phenylethynyl endcap; and A is an oligomer selected from the group consisting of imidesulfone; ether; ethersulfone; amide; imide; ester; estersulfone; etherimide; amideimide; oxazole; oxazole sulfone; thiazole; thiazole sulfone; imidazole; and imidazole sulfone.Type: GrantFiled: February 6, 2009Date of Patent: November 22, 2011Assignee: The Boeing CompanyInventors: Thomas K. Tsotsis, Norman R. Byrd
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Publication number: 20110274903Abstract: Embodiments of the invention may include one or more high-density textile fibers with a density from about 1 to about 11 g/mL. Some embodiments may include fabrics and/or garments made from such fibers. Embodiments comprising garments can include, for instance, exercise aids for providing extra mass to the wearer. Other embodiments can comprise, without limitation, building materials, safety equipment, armor, body armor, protective apparel, marine repair materials, marine protective devices, boat hulls, vehicle chassis, or blast-resistant materials.Type: ApplicationFiled: May 7, 2011Publication date: November 10, 2011Inventors: Charlene Stuart, Patricia Dorton
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Publication number: 20110190469Abstract: Disclosed is an acetylenic polyamide and a composition comprising said acetylenic polyamide, which acetylenic polyamide. Said acetylenic group is suitably obtained by subjecting at least one acetylenic compound to reaction with either at least one polyamide, or at least one amino functional monomer and/or carboxylic acid, yielding a corresponding acetylenic amide monomer, oligoamide or polyamide. Amide monomers and/or oligoamides can subsequently be used in production of the acetylenic polyamide.Type: ApplicationFiled: February 25, 2009Publication date: August 4, 2011Applicant: NEXAM CHEMICAL ABInventors: Jan-Erik Rosenberg, David Persson, Elisbeth Kiraly, Mehrnoush Jowkar Deriss
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Publication number: 20110144299Abstract: Disclosed is a liquid crystal photo-alignment agent including polyamic acid or a polyimide including a first structural unit derived from a photo-diamine represented by the following Chemical Formula 1, a second structural unit represented by the following Chemical Formula 2 or a polymer compound combination thereof, and a solvent. In Chemical Formulae 1 and 2, each substituent is the same as defined in the detailed description.Type: ApplicationFiled: September 1, 2010Publication date: June 16, 2011Applicant: CHEIL INDUSTRIES INC.Inventors: Jae-Deuk YANG, Hee-Young OH, Myoung-Youp SHIN, Mi-Ra IM, Guk-Pyo JO, Eun-Ha KIM