Patents Examined by David Karst
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Patent number: 9707252Abstract: A biocompatible synthetic macromer composition is provided which includes a first polymer having stiffening linkages and at least one amine group, and a second component having at least one amine-reactive group. The biocompatible synthetic macromer composition can be used as an adhesive or sealant in human and/or animal medical applications.Type: GrantFiled: February 9, 2006Date of Patent: July 18, 2017Assignee: Covidien LPInventors: Ahmad R. Hadba, John Kennedy, Mark Roby
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Patent number: 9700867Abstract: A method for chemically destroying magnetic data carriers. Recorded data are irretrievably eliminated and cannot be re-read. The carriers include aluminium or its alloys and ferromagnetic materials. They undergo a digestion reaction with an aqueous solution of a digesting mixture including: a) hydrochloric acid and (V)nitrate of one or more alkali metals, alkaline earth metals, rare earth metals and ammonium; or b) nitric(V) acid and chloride of one or more alkali metals, alkaline earth metals, rare earth metals and ammonium. The product of the reaction is an aqueous solution having aluminium hydroxide and chlorides and (V)nitrates of metals contained in the ferromagnetic metals and gaseous products of the reaction. Acidic salt solutions are utilized in a sewage treatment plant. Gaseous products including hydrogen and nitrogen oxides, after diluting with nitrogen, are directed to the atmosphere through an absorption system.Type: GrantFiled: August 9, 2012Date of Patent: July 11, 2017Assignee: BOSSG & EIT + TECHNOLOGIES SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIAInventors: Waldemar Maliszewski, Kazimierz Szyszka, Janusz Iwaniec
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Patent number: 9695333Abstract: A resin composition formed by reacting a polyester-polyacid oligomer with a poly-epoxy oligomer is provided. The functionality of the resin composition is between 4 and 10. The weight average molecular weight of the resin composition is between 3,000 and 20,000 g/mol.Type: GrantFiled: July 23, 2015Date of Patent: July 4, 2017Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Wei-Cheng Tang, Su-Mei Chen Wei, Yi-Che Su, Ya-I Hsu, Yi-Tzu Peng
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Patent number: 9691551Abstract: An electrolyte material formulation including: (a) a monomer of formula (I) (b) a monomer of formula (II) ?and (c) a polymerizable compound, wherein A, X, B1, B2, R1 to R3, q and w are defined as those recited in the specification, and the monomer (b) is in an amount of about 1 part by weight to about 800 parts by weight and the polymerizable compound (c) is in an amount of about 1 part by weight to about 10000 parts by weight based on 100 parts by weight of the monomer (a). Also, an electrolytic material composition obtained by the polymerization of the aforementioned electrolytic material formulation. The electrolytic material composition can be applied to a solid electrolyte capacitor.Type: GrantFiled: December 18, 2012Date of Patent: June 27, 2017Assignees: Eternal Materials Co., Ltd., Gemmy Electronic Co., Ltd.Inventors: Shinn-Horng Chen, Chieh-Fu Lin
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Patent number: 9668825Abstract: Disclosed are endodontic filling materials and methods. A method for filling a dental root canal may include providing a hydrosetting filling material and inserting the hydrosetting filling material into the dental root canal, the material setting in the root canal to form a biocompatible filling. The hydrosetting filling material comprises a hydrogel former and a filler. The hydrogel former is at least one of a reactive organic hydrogel formers, an inorganic hydrogel formers, and a non-reactive organic hydrogel formers, and the filler is at least one of a self-hardening and a non-hardening filler. Plural filling material precursor compositions that collectively contain hydrogel formers and fillers may be provided.Type: GrantFiled: July 21, 2015Date of Patent: June 6, 2017Assignee: ADA FoundationInventors: Laurence C. Chow, Shozo Takagi
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Patent number: 9657114Abstract: Methods of encapsulating particles (260) in polymer (280, 382, 384) and compositions of matter using such encapsulated particles (260). Methods include mixing particles (260) of one or more materials with one or more initial radical polymerizable monomers (265) and one or more initial charge-generating components (270) to form a first suspension of monomer-wetted particles (260/265/270), mixing the first suspension with an aqueous dispersant medium (275) to form a second suspension, adding one or more initial reaction initiators to at least one of the first suspension and the second suspension, subjecting the second suspension to homogenization sufficient to form a stable submicron emulsion having an aqueous continuous phase (275), and reacting available radical polymerizable monomers (265) of the emulsion to encapsulate the particles (260) in one or more layers of polymer (280, 382, 384) and to incorporate ionic species from available charge-generating components (270).Type: GrantFiled: July 31, 2009Date of Patent: May 23, 2017Assignee: Hewlett-Packard Development Company, L.P.Inventors: Doris Pik-Yiu Chun, Hou T. Ng
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Patent number: 9657173Abstract: A curable resin composition which can achieve a cured product in which the generation of cracks upon curing is suppressed and which has both a low thermal expansion rate and a low water absorbability is provided. The curable resin composition comprises: at least a cyanate ester compound (A) represented by the following formula (I); a metal complex catalyst (B); and an additive (C), wherein the additive (C) contains any one or more selected from the group consisting of a compound represented by the following general formula (II), a compound represented by the following general formula (III), and a tertiary amine.Type: GrantFiled: January 31, 2012Date of Patent: May 23, 2017Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Makoto Tsubuku, Taketo Ikeno, Masayuki Katagiri, Tomoo Tsujimoto
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Patent number: 9650542Abstract: The present invention relates to the use of substantially linear polypropyleneimine as a hardener for epoxy resins, and also to a corresponding curable composition, to the curing thereof, and to the cured epoxy resin obtainable therefrom.Type: GrantFiled: July 29, 2014Date of Patent: May 16, 2017Assignee: BASF SEInventors: Christoph Mueller, Christian Mueller, Kirsten Dahmen, Alexander Panchenko, Ansgar Gereon Altenhoff, Monika Charrak, Andreas Kunst, Michael Henningsen, Achim Kaffee
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Patent number: 9631082Abstract: A water-in-oil microemulsion, including a polyacrylamide, a fatty acid, a surfactant, an oil continuous phase, and an aqueous discontinuous phase in the oil continuous phase. The fatty acid includes a tall oil fatty acid, oleic acid, or a combination of a tall oil fatty acid and oleic acid. The water-in-oil microemulsion contains 6 to 48 parts by weight of the polyacrylamide, 30 to 62 parts by weight of the fatty acid, and 20 to 44 parts by weight of the surfactant per 100 parts by weight of the polyacrylamide, the fatty acid, and the surfactant combined.Type: GrantFiled: July 18, 2016Date of Patent: April 25, 2017Assignee: Exacto, Inc.Inventors: Franklin E. Sexton, Ryan T. Strash, Todd J. O'Connell
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Patent number: 9631047Abstract: The present invention relates to curing agents for epoxy resins, containing at least one adduct of a primary diamine and an aromatic monoepoxide, at least one primary diamine and at least one secondary diamine which is free of primary amino groups and free of hydroxyl groups. The curing agent is of low viscosity and cures, together with epoxy resins, rapidly and without blushing, even under damp, cold conditions, to form films of high hardness and low brittleness. It is particularly well suited for low-emission coatings that cure at room temperature.Type: GrantFiled: December 20, 2013Date of Patent: April 25, 2017Assignee: SIKA TECHNOLOGY AGInventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
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Patent number: 9623157Abstract: This invention relates to hydrophilic polymer compositions and a preferred application therefore, viz., hydrophilic medical device coatings. The hyaluronic acid hyaluronon by itself or modified as described herein advantageously reacts with compositions disclosed in U.S. Pat. No. 7,776,956 to produce hydrophilic compositions and coatings particularly useable with medical devices.Type: GrantFiled: August 9, 2016Date of Patent: April 18, 2017Assignee: Lake Region Manufacturing, Inc.Inventor: Peter Anthony Edwards
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Patent number: 9624420Abstract: The present invention relates to the field of oil and natural gas well cementation engineering, in particular to a foam stabilizer composition, foamed cement slurry and an additive composition thereof. The foam stabilizer composition comprises C6-C20 alkyl amido alkyl amine oxide, C6-C20 alkyl amido alkyl betaine, and triterpenoid saponin compound. The foam stabilizer composition provided in the present invention is helpful for forming foamed cement slurry that has high foam stability, and the foam stabilizer composition can work with other active components in the foamed slurry additive composition provided in the present invention to enable the foamed cement slurry that contains the additive composition to obtain low density, high foam stability, low permeability, and high compressive strength, which is especially applicable to well cementing operation in an oil and natural gas exploration and development process.Type: GrantFiled: October 18, 2016Date of Patent: April 18, 2017Assignee: China Univeristy of Petroleum (East China)Inventors: Chengwen Wang, Ruihe Wang, Baojiang Sun, Weidong Zhou
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Patent number: 9617461Abstract: Well-cementing compositions for use in high-pressure, high-temperature (HPHT) wells usually contain a complex array of cement additives, including retarders, dispersants and fluid-loss additives. Under these extreme conditions additive degradation, reactions between additives, reactions between additives and the cement, or combinations thereof may occur—causing slurry gelation, premature setting or both. Incorporation of organoamine compounds in the cement compositions may help prevent or reduce the severity of slurry gelation, setting-time reduction or both.Type: GrantFiled: December 6, 2010Date of Patent: April 11, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Erik Nelson, Tatiana Pyatina, Sylwia Komocki
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Patent number: 9617650Abstract: The present invention provides a cationic electrodeposition coating composition comprising: a specific amino group-containing modified epoxy resin (A); a blocked polyisocyanate curing agent (B); a water-soluble zirconium compound (C); and sulfamic acid, wherein the water-soluble zirconium compound (C) is present in an amount of 10 to 10,000 ppm, calculated as the mass of the elemental zirconium, relative to the mass of the cationic electrodeposition coating composition.Type: GrantFiled: April 4, 2012Date of Patent: April 11, 2017Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KANSAI PAINT CO., LTD.Inventors: Eisaku Okada, Kouji Takezoe, Hirokazu Hayashi
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Patent number: 9617420Abstract: The present technology is an epoxy resin composition containing an epoxy resin (A), a urethane resin (B) in which the terminal isocyanate of the urethane prepolymer is blocked by at least one of an ?-polycaprolactam, an oxime, or a pyrazole, and in which bisphenol A is included in the backbone of the aforementioned urethane prepolymer, and a curing agent (C).Type: GrantFiled: April 2, 2012Date of Patent: April 11, 2017Assignee: The Yokohama Rubber Co., LTD.Inventors: Misaki Matsumura, Kazunori Ishikawa
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Patent number: 9611385Abstract: Disclosed are compositions comprising: (a) 10 to 40 percent by weight of the ultrafine particulate poly(phenylene ether), wherein the mean particle size of the poly(phenylene ether) is 9 microns or less; (b) 60 to 90 percent by weight of an epoxy resin; wherein the weight percents are based on the total weight of the composition. Also disclosed are processes for preparing such compositions as well as articles derived therefrom.Type: GrantFiled: June 29, 2012Date of Patent: April 4, 2017Assignee: SABIC Global Technologies B.V.Inventors: Edward Norman Peters, Scott Michael Fisher
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Patent number: 9611419Abstract: A hydraulic well cementing composition is disclosed. The well cementing composition contains a hydraulic cement and a fluid loss additive. The fluid loss additive is the polymerization reaction product of a two vinylamide monomers, wherein the polymerization reaction is conducted in the presence of a molecular weight control agent. One of the vinylamide monomers includes a sulfonic acid function, the second vinylamide monomer does not include a sulfonic acid function. The fluid loss additive controls fluid loss at temperatures up to 350° F.Type: GrantFiled: April 1, 2016Date of Patent: April 4, 2017Assignee: FRITZ INDUSTRIES, INC. A CORPORATION OF TEXASInventors: James C. Ferrell, Jr., Lauren T. Gallagher, Bilal H. Bazzi
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Patent number: 9605109Abstract: The instant disclosure relates to phosphorus-containing compounds that can be used to form flame retardant phosphorus-containing resins, and also can serve as a hardener for a flame retardant epoxy resin compositions. In particular, the phosphorus-containing compounds are modified with acyloxy groups (—O—(C?O)—R), as shown below. Incorporation of the acyloxy groups results in resins that are water resistant and exhibit improved dielectric properties.Type: GrantFiled: March 10, 2016Date of Patent: March 28, 2017Assignee: Chang Chun Plastics Co. Ltd.Inventors: An-Pang Tu, Szu-Fang Chen, Ping-Chieh Wang, Kuen-Yuan Hwang
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Patent number: 9598536Abstract: A process for polymerizing an epoxide monomer, preferably ethylene oxide, comprising carrying out the process in the presence of a catalytically active amount of a catalyst obtainable by a preparation process comprising admixing at least one alkaline earth metal, liquid ammonia, an alkylene oxide, which is optionally substituted by aromatic radicals, and an organic nitrile having at least one acidic hydrogen atom to prepare a slurry of modified alkaline earth hexammine in liquid ammonia; continuously transferring the slurry of modified alkaline earth hexammine in liquid ammonia into a stripper vessel and continuously evaporating ammonia, thereby accumulating the modified catalyst in the stripper vessel; and upon complete transfer of the slurry of modified alkaline earth hexammine into the stripper vessel, aging the modified catalyst to obtain the final polymerization catalyst; and a polymer obtainable by this process.Type: GrantFiled: January 21, 2013Date of Patent: March 21, 2017Inventors: John R. Simms, John M. Kenney, Robert S. Landon, Jeffrey G. Hippler
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Patent number: 9598523Abstract: The invention concerns to the use, as an agent improving the thermal stability of (meth)acrylic comb polymers of a macromonomer whose formula (I) is: R-(A-O)m—(B—O)n—R???(I) wherein both m and n are non-zero and A and B designate alkyl groups having 2 to 4 carbon atoms, but different from one another. The invention further pertains to the implementation of the polymers obtained, as agents improving the thermal stability of the plastic compositions that contain them.Type: GrantFiled: December 18, 2009Date of Patent: March 21, 2017Assignee: COATEX S.A.S.Inventors: Olivier Guerret, Jacques Mongoin, Patrick Trouve