Patents Examined by David L Miller
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Patent number: 8921477Abstract: Nanolatexes comprising functional monomers and methods for making nanolatexes. Compositions comprising between about 3:97 and 90:10 (w/w) nanolatex particles to conventional latex particles. Because of the particle size differences between the conventional and nanolatexes, the nanolatexes may distribute themselves advantageously amongst the conventional latexes during coalescence, resulting in films having unexpected properties. In particular, when the average particle size of the conventional latex is about six times larger than the average particle size of the nanolatex, a composition comprising a ratio of 1 conventional latex particle for every 25 nanolatex particles results in unexpectedly strong (large Young's modulus) and smooth (high specular gloss) films.Type: GrantFiled: October 13, 2009Date of Patent: December 30, 2014Assignee: Eastern Michigan UniversityInventors: Frank N. Jones, Ravi G. Joshi, Theodore Provder
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Patent number: 8916631Abstract: Provided is a film or sheet composed of a resin composition that includes a poly lactic acid (A), an acidic functional group-modified olefinic polymer (B) including an acidic functional group and having an acid value of 10 to 70 mg KOH/g and a weight average molecular weight of 10,000 to 80,000, a tetrafluoroethylene polymer (C), and an aromatic-condensed phosphoric acid ester-containing flame retardant (D) including a compound of General Formula (I) and in which the aromatic-condensed phosphoric acid ester-containing flame retardant (D) is included in an amount of 10 to 80 parts by weight based on 100 parts by weight of the poly lactic acid (A), and a method for manufacturing the film or sheet by melt film formation. Each sign in Formula is as described in the specification.Type: GrantFiled: January 7, 2011Date of Patent: December 23, 2014Assignee: Nitto Denko CorporationInventors: Shigeki Ishiguro, Hiroki Senda
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Patent number: 8912300Abstract: There are provided a radical polymerizable composition having a low viscosity suitable for coating and a cured product and a plastic lens each obtained by curing the composition, the cured product having a high refractive index, good adhesiveness to a plastic film substrate, and good adhesiveness kept even under high-temperature and high-humidity conditions. The radical polymerizable composition includes phenylbenzyl (meth)acrylate (A), an epoxy (meth)acrylate (X) having an aromatic ring in its molecular structure, and a radical polymerization initiator (Y) as essential components.Type: GrantFiled: March 12, 2012Date of Patent: December 16, 2014Assignee: DIC CorporationInventors: Nobuo Kobayashi, Akihiro Kondo, Atsuhisa Miyawaki, Naoya Ikushima, Kazuaki Hatsusaka
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Patent number: 8901257Abstract: Flexible members for use in imaging devices comprise a polyphenylsulfone and a polyetherimide; and optionally, a polysiloxane surfactant.Type: GrantFiled: February 12, 2011Date of Patent: December 2, 2014Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8900205Abstract: An object of the present invention is to provide a syringe for prefilled syringe in which the adsorption of a low-molecular medical agent or a protein for a long term is precluded. In accordance with the present invention, the above-described object is achieved by a syringe for prefilled syringe including: a plunger in which a gasket is attached to a top; and a syringe barrel in which the plunger is slidably accommodated, wherein the surface of the gasket and the inner wall of the syringe barrel are subjected to surface modification with a polymer containing zwitterion.Type: GrantFiled: January 31, 2013Date of Patent: December 2, 2014Assignee: Terumo Kabushiki KaishaInventor: Naoki Ishii
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Patent number: 8889806Abstract: There is provided a ring-opening polymer of cyclopentene wherein a cis ratio of cyclopentene-derived structural units is 30% or more, the weight average molecular weight (Mw) is 100,000 to 1,000,000, and an oxysilyl group is included at an end of the polymer chain. For example, the ring-opening polymer of cyclopentene can be obtained by ring opening polymerization of cyclopentene in the presence of a compound of a transition metal belonging to Group 6 in the Periodic Table, an organoaluminum compound represented by the following general formula (1), and an olefinically unsaturated hydrocarbon containing an oxysilyl group. (R1)3-xAl(OR2)x??(1) (in the general formula (1), R1 and R2 represent a hydrocarbon group having 1 to 20 carbon atoms and x satisfies the requirement 0<x<3.Type: GrantFiled: January 14, 2011Date of Patent: November 18, 2014Assignee: Zeon CorporationInventors: Yasuo Tsunogae, Yoshihisa Takeyama
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Patent number: 8883921Abstract: A method of producing a silane cross-linked polyethylene is disclosed which includes maleating a polyethylene polymer to form a maleated polyethylene and reacting the maleated polyethylene with a primary or secondary amino silane to form a silane-grafted polyethylene. The method further includes treating the silane-grafted polyethylene in a moisture curing process to form the silane cross-linked polyethylene.Type: GrantFiled: February 21, 2012Date of Patent: November 11, 2014Assignee: Fina Technology, Inc.Inventors: Fengkui Li, John Ashbaugh, Jason Clark
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Patent number: 8859672Abstract: A poly(arylene ether)-poly(hydroxy ether) block copolymer includes at least one poly(hydroxy ether) block and at least one poly(arylene ether) block, and the mole ratio of poly(hydroxy ether) blocks to poly(arylene ether) blocks is 0.95:1 to about 1.00:1. The poly(arylene ether)-poly(hydroxy ether) block copolymer can be prepared by reacting a telechelic poly(arylene ether) having terminal hydroxyl groups with a telechelic poly(hydroxy ether) epoxy resin having terminal epoxy groups, wherein the mole ratio of the telechelic poly(hydroxy ether) to the telechelic poly(arylene ether) is 0.95:1 to 1.00:1. The poly(arylene ether)-poly(hydroxy ether) block copolymer can be shaped into an article by extrusion, thermoforming, or molding, and is a compatibilizing agent for non-polar and polar polymers.Type: GrantFiled: June 27, 2011Date of Patent: October 14, 2014Assignee: Sabic Global Technologies B.V.Inventor: Edward Norman Peters
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Patent number: 8859700Abstract: A method for producing a water-absorbent resin having a further reduced odor as compared with a water-absorbent resin obtained by a conventional method as well as a water-absorbent resin produced by the same method, by maintaining the addition rate V from the pouring nozzle for the aqueous solution of the water-soluble ethylenically unsaturated monomer in a polymerization reaction tank not more than 0.30 [min?1], in the first stage polymerization step which is within the step of the conventional method upon performing multi-stages such as two or more stages of reversed-phase suspension polymerizations in a method for producing a water-absorbent resin, and thereby by being able to reduce the amount of the petroleum hydrocarbon dispersion medium remaining in the above water-absorbent resin.Type: GrantFiled: July 20, 2011Date of Patent: October 14, 2014Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Hideki Yokoyama, Sachi Kikuno, Atsushi Heguri, Nobuhiro Maeda
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Patent number: 8846801Abstract: Thermoplastic elastomers containing carbon nanotubes that is an autonomous, intrinsic, and reversible self healing polymer that requires no intervention to induce self healing, that requires no sequestered healing agents are added to the matrix, and is capable of multiple healing events.Type: GrantFiled: February 17, 2011Date of Patent: September 30, 2014Assignee: University of South FloridaInventors: Julie P. Harmon, Roger Bass
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Patent number: 8846800Abstract: The present invention relates to reinforced polyamide molding materials which can be prepared from a polyamide blend and, for example, by compounding with cut fibers or continuous filaments on twin-screw extruders and have mechanical properties which are usually not compatible with one another, namely a combination of exceptionally high rigidity and strength and at the same time good toughness. Furthermore, a high heat distortion temperature (HDT) is achieved according to the invention. The thermoplastic polyamide molding materials according to the invention are suitable for the production of moldings or other semifinished products or finished articles, which can be produced, for example, by extrusion, injection molding, direct methods or direct compounding, in which the compounded polyamide molding material is processed directly by injection molding, or other deformation techniques.Type: GrantFiled: November 8, 2006Date of Patent: September 30, 2014Assignee: EMS-Chemie AGInventors: Ornulf Rexin, Jean-Jacques Linster, Manfred Hewel
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Patent number: 8829133Abstract: To provide an ABA triblock copolymer containing: an A-block having, in a constitutional unit thereof, a monomer represented by the following general formula (1) or a monomer represented by the following general formula (2); and a B-block having, in a constitutional unit thereof, a hydrophilic monomer having a radical polymerizable unsaturated bond, where R1 is a hydrogen atom or a methyl group; R2 is a C5-C18 alkylene group; M is a hydrogen atom or a monovalent metal atom; and X1 is —NH— or an oxygen atom in the general formula (1), and where R11 is a hydrogen atom or a methyl group; R12 is a C5-C18 alkylene group; R13 and R14 are each independently a hydrogen atom, a methyl group, or an ethyl group; and X11 is —NH— or an oxygen atom in the general formula (2).Type: GrantFiled: April 22, 2013Date of Patent: September 9, 2014Assignees: Ricoh Company, Ltd., University of HyogoInventors: Yuuma Usui, Shin-ichi Yusa
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Patent number: 8822614Abstract: The present invention provides an acrylic thermoplastic resin containing 50 to 95% by mass of a repeating unit (X) derived from a methacrylate monomer represented by the following formula (1), 0.1 to 20% by mass of a repeating unit (Y1) derived from an N-substituted maleimide monomer (a) represented by the following formula (2), and 0.1 to 49.9% by mass of a repeating unit (Y2) derived from an N-substituted maleimide monomer (b) represented by the following formula (3), regarding the total amount of the repeating unit (X), the repeating unit (Y1), and the repeating unit (Y2) as 100% by mass: The absolute value of a photoelastic coefficient (C) of the acrylic thermoplastic resin is not greater than 3.0×10?12 Pa?1. The halogen atom content is less than 0.47% by mass with reference to the mass of the acrylic thermoplastic resin.Type: GrantFiled: May 27, 2011Date of Patent: September 2, 2014Assignee: Asahi Kasei Chemicals CorporationInventors: Masami Yonemura, Mayuko Kimura
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Patent number: 8796404Abstract: A polymer for an optical film including: a repeating unit A including a repeating unit represented by the following Chemical Formula 1; and a repeating unit B derived from a monomer including an unsaturated bond copolymerizable with the repeating unit A: wherein, in Chemical Formula 1, the variables R1 to R9 are defined herein.Type: GrantFiled: July 10, 2012Date of Patent: August 5, 2014Assignees: Samsung Electronics Co., Ltd., Cheil Industries, Inc.Inventors: Hyung Jun Kim, Myung-Sup Jung, Won Cheol Jung, Jong-Hoon Won, Kyu Yeol In
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Patent number: 8796405Abstract: Described herein are the synthesis and polymerization of a series of N-Boc-protected amino acid vinyl ester (BAAVE) monomers. Homopolymers and heteropolymers containing the monomers are described, particularly heteropolymers with vinyl ester monomers such as vinyl acetate. Deprotection can be used to produce hydrophilic and hydrophobic polymers that are particular useful in biological applications such as cellular delivery of biological materials.Type: GrantFiled: January 10, 2013Date of Patent: August 5, 2014Inventors: Mahesh Kalyana Mahanthappa, Glen Bradley Thomas, Corinne Elizabeth Lipscomb
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Patent number: 8765888Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing diphenylethylene-type functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: GrantFiled: June 30, 2010Date of Patent: July 1, 2014Assignee: Bridgestone CorporationInventors: Zengquan Qin, Yuan-Yong Yan, Xiao-Dong Pan
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Patent number: 8759462Abstract: A method for producing a resist copolymer having a weight-average molecular weight of not less than 3000 and not more than 6000, in which copolymer the contents of an oligomer having a molecular weight of not more than 1000 and a byproduct derived from a polymerization initiator are small, is provided. The method for producing a resist copolymer comprises the step of continuously supplying a solution containing a monomer and a solution containing a polymerization initiator to a heated solvent to carry out a radical polymerization, wherein the variation range of the concentration of the polymerization initiator in polymerization solution is within ±25% of the median value between the maximum concentration and the minimum concentration during specific time; and the variation range of the concentration of unreacted monomer in the polymerization solution is within ±35% of the median value between the maximum concentration and the minimum concentration during specific time.Type: GrantFiled: November 13, 2012Date of Patent: June 24, 2014Assignee: Maruzen Petrochemical Co., Ltd.Inventor: Tomo Oikawa
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Patent number: 8754178Abstract: A resin composition of the present invention includes a maleimide derivative (A) represented by a general formula (1) and a bis-maleimide compound (B) represented by a general formula (2). In the general formula (1), R1 represents a straight chain or branched alkylene group having 1 or more carbon atoms, R2 represents a straight chain or branched alkyl group having 5 or more carbon atoms, and the sum of carbon atoms of R1 and R2 is 10 or less. In the general formula (2), X1 represents —O—, —COO—, or —OCOO—, R3 represents a straight chain or branched alkylene group having 1 to 5 carbon atoms, R4 represents a straight chain or branched alkylene group having 3 to 6 carbon atoms, and m is an integer of 1 or more and 50 or less.Type: GrantFiled: September 7, 2011Date of Patent: June 17, 2014Assignee: Sumitomo Bakelite Co., Ltd.Inventors: Takashi Kawana, Naoya Kanamori, Ryuichi Murayama
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Patent number: 8748548Abstract: To obtain a hydrophilic macromonomer mixture which is a highly polymerized hydrophilic macromonomer, has few components not bonded to the polymer chain after polymerization, and is less likely to leaching. Provided is a macromonomer mixture containing macromonomer A being a macromonomer having a group obtained by further introducing a polymerizable group into a reactive group derived from a polymerization initiator at an end thereof; and macromonomer B being a macromonomer having a group obtained by further introducing a polymerizable group into a reactive group derived from a chain transfer agent at an end thereof.Type: GrantFiled: December 22, 2010Date of Patent: June 10, 2014Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Kazuhiko Fujisawa, Masataka Nakamura
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Patent number: 8729203Abstract: The present invention provides a monomer for a polymerizable composition, a polymerizable composition containing the monomers, a polymer formed from the polymerizable composition, and ophthalmic lens blanks and ophthalmic lenses formed from the polymer. The monomer is a compound having the formula (I) or (Ia).Type: GrantFiled: May 7, 2009Date of Patent: May 20, 2014Inventors: Timothy Charles Higgs, Richard Alexander Young