Patents Examined by James Seidleck
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Patent number: 7999060Abstract: A tailorable polyimide prepolymer blend comprising an end group component, a dianhydride component, and a diamine component. The dianhydride component includes at least 3,4,3?,4?-benzophenonetetracarboxylic dianhydride (BTDA), derivatives thereof, or combinations thereof, and 3,4,3?,4?-biphenyltetracarboxylic dianhydride (BPDA), derivatives thereof, or combinations thereof. The diamine component includes at least 1,3-phenylenediamine (mPDA), derivatives thereof, or combinations thereof; 1,4-phenylenediamine (pPDA), derivatives thereof, or combinations thereof; bis amino phenoxy benzene (APB), derivatives thereof, and combinations thereof; and optionally, 4,4?-(1,3-phenylene-bis(1-methylethylidene)bisaniline (Bis-M), derivatives thereof, and combinations thereof. A cured polyimide matrix has a glass transition temperature of at least about 450° F. (232° C.).Type: GrantFiled: October 30, 2007Date of Patent: August 16, 2011Assignee: General Electric CompanyInventors: Warren Ronk, Lisa Shafer
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Patent number: 7993886Abstract: The claimed invention relates to a process for preparing (meth)acrylates of N-hydroxyalkylated amides, in which open-chain N-hydroxyalkylated amides are esterified with (meth)acrylic acid or transesterified with at least one (meth)acrylic ester in the presence of at least one heterogeneous catalyst selected from the group consisting of an inorganic salt and an enzyme.Type: GrantFiled: July 16, 2010Date of Patent: August 9, 2011Assignee: BASF AktiengesellshaftInventors: Frank Hoefer, Dietmar Haering
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Patent number: 7994240Abstract: Use of water redispersible polymer powders stabilized with a protective colloid as a thermoplastic binder for natural particulate materials allows thermoplastic processing such as extrusion, without formation of bubbles due to moisture present, and while maintaining physical properties.Type: GrantFiled: February 6, 2007Date of Patent: August 9, 2011Assignee: Wacker Chemie AGInventors: Marcus Pfaadt, Thomas Funke
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Patent number: 7994273Abstract: Diamine compounds, which in particular are useful as precursors for the production of liquid crystal alignment layers, are represented by the general formula I: wherein A1 represents an organic group of 1 to 40 carbon atoms; A2 represents a hydrogen atom or an organic group of 1 to 40 carbon atoms.Type: GrantFiled: May 14, 2010Date of Patent: August 9, 2011Assignee: Rolic AGInventors: Guy Marck, Olivier Muller
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Patent number: 7994274Abstract: A method for using citraconic anhydride and itaconic anhydride as addition cure end caps in reactions for forming polyamic acid oligomers and polyimide oligomers, is provided. Prepregs and high temperature adhesives made from the resulting oligomers, as well as, high temperature, low void volume composites made from the prepregs, are also provided.Type: GrantFiled: December 23, 2005Date of Patent: August 9, 2011Assignee: I.S.T. (MA) CorporationInventors: Gary L. Deets, Jianming Xiong
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Patent number: 7989578Abstract: The present invention relates to a negative photosensitive polyimide polymer having a repeating unit of formula (1) as a polymerized unit: wherein G, Q and P* are as defined in the specification. The polyimide polymer of the present invention is developable in an aqueous alkaline solution, and has the properties associated with an insulating layer and photoresist.Type: GrantFiled: October 30, 2007Date of Patent: August 2, 2011Assignee: Eternal Chemical Co., Ltd.Inventor: Chung-Jen Wu
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Patent number: 7989579Abstract: A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.Type: GrantFiled: January 30, 2008Date of Patent: August 2, 2011Assignee: GKSS-Forschungszentrum Geesthacht GmbHInventors: Mariela Leticia Ponce, Dominique De Figueiredo Gome, Suzana Nunes, Volker Abetz
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Patent number: 7985445Abstract: A novel method of forming water in oil microcapsules is disclosed. According to the invention microcapsules are obtained by steps comprising dispersing an oil soluble amine modified polyfunctional polyvinyl monomer and an oil soluble bi- or polyfunctional vinyl monomer along with a thermal or UV free radical initiator (optionally included in one or both of the oil or water phases) and an organic acid into an internal phase oil; heating or UV exposing for a time (and temperature) sufficient to oligomerize the amine modified polyfunctional polyvinyl monomer and oil soluble bi- or polyfunctional vinyl monomer forming a pre-polymer. Thereafter the process involves adding to the oil phase oil a water phase comprising a dispersion in water of an anionic emulsifier (and optionally initiator), and adding an emulsifying agent. Emulsifying the water phase into the oil phase (W/O) is controlled through the quantity of water employed.Type: GrantFiled: August 13, 2010Date of Patent: July 26, 2011Assignee: Appleton Papers Inc.Inventors: Todd Arlin Schwantes, Peggy Dorothy Sands
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Patent number: 7985351Abstract: A liquid crystalline polyester resin composition comprising 100 parts by weight of a liquid crystalline polyester; 50 to 150 parts by weight of at least one whisker selected from aluminum borate whisker and titanium oxide whisker; and 1 to 30 parts by weight of carbon black having a specific surface area of at least 200 m2/g. This liquid crystalline polyester resin composition has excellent mechanical properties and provides an insulator which is hardly charged.Type: GrantFiled: August 2, 2005Date of Patent: July 26, 2011Assignees: Sumitomo Chemical Co., Ltd., NTN CorporationInventors: Hiroyasu Yamauchi, Mitsuo Maeda, Fuminori Satoji, Kenji Ito
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Method for decomposing and reclaiming synthetic resin having ester bond in the composition structure
Patent number: 7985778Abstract: Synthetic resin containing ester bond is subjected to hydrolysis treatment to reclaim raw material component before polymerization. Method for decomposing and reclaiming synthetic resin having ester bond in composition structure thereof, by conducting hydrolysis treatment and then separation collection treatment. In the hydrolysis treatment, article containing synthetic resin to be decomposed and reclaimed is exposed to water vapor atmosphere filled under saturation water vapor pressure at treatment temperature at or below melting point of the synthetic resin. The synthetic resin in article to be treated is hydrolyzed by water vapor generated at the treatment temperature, to generate decomposition product before polymerizing to the synthetic resin containing an ester bond. The separation collection treatment is treatment in which the decomposition product generated by the hydrolysis treatment is separated into liquid component and solid component to be collected individually.Type: GrantFiled: March 6, 2007Date of Patent: July 26, 2011Inventor: Koichi Nakamura -
Patent number: 7981941Abstract: A method for reprocessing used PET bottles having the step of shredding the bottles to form plastic flakes, sorting the plastic flakes according to at least one criterion into at least two partial quantities, and performing an individual processing treatment including a decontamination treatment. The device permits performing the method whereby it is possible to separate the plastic flakes produced from the threaded part of a PET bottle, these flakes being more difficult to purify, from the lighter plastic flakes from the wall of the bottle, which have a thin wall and are easier to purify, and treating them further in separate reprocessing steps.Type: GrantFiled: February 4, 2011Date of Patent: July 19, 2011Assignee: Krones AGInventors: Thomas Friedlaender, Maren Hofferbert, Timm Kirchhoff
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Patent number: 7981513Abstract: A dental filler having the optical and/or mechanical properties satisfying the requirements to a dental material, a method for producing the dental filler, and a dental composite material containing the dental filler. The dental filler comprises microparticles of amorphous inorganic oxide constituted by at least silica-based fine particles covered with a composite oxide comprising zirconium, silicon and oxygen. The dental composite material contains the dental filler and a hardenable resin selected from an acrylic resin, a methacrylic resin, an epoxy resin, a vinyl resin and a urethane resin.Type: GrantFiled: September 13, 2007Date of Patent: July 19, 2011Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Keisuke Ohtsuka, Hirokazu Tanaka, Eiko Tanaka, legal representative
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Patent number: 7981940Abstract: Provided is a method of treating a sealing compound, in order to recover from the inside of a pneumatic tire the sealing compound that was used for repairing a puncture, the sealing compound including an aqueous solution having at least rubber latex dispersed therein, the method comprising: solid-liquid separating, by injecting a treating agent into the inside of a pneumatic tire into which the sealing compound was injected, the treating agent comprising at least one of a salt that is a reaction compound of an acid and a base and/or a water-soluble organic solvent, mixing the treating agent with the sealing compound inside the pneumatic tire, and aggregating and solidifying the rubber latex in the sealing compound.Type: GrantFiled: May 26, 2005Date of Patent: July 19, 2011Assignee: Bridgestone CorporationInventors: Shinichi Iwasaki, Rieko Iwasaki, legal representative, Ryuji Izumoto, Daisuke Sugio
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Patent number: 7981996Abstract: The present invention provides a method for preparing relatively insoluble bisimides under conditions which afford high imidization reaction rates and which permit the monitoring and adjustment of reactant stoichiometry at any stage of the reaction. The bisimides provided by the present invention are prepared either by reaction of a diamine such as 4,4?-diaminodiphenylsulfone (DDS) with an anhydride, for example 3-chlorophthalic anhydride (3-ClPA) in the presence of a solvent at a pressure greater than one atmosphere and at a temperature above the normal boiling point of the solvent, or by reaction of a monoamine with a dianhydride under the same conditions. In one embodiment, the relatively insoluble product bisimides provided by the present invention have a solubility in ortho-dichlorobenzene of less than about 10 percent by weight at a temperature of about 180° C.Type: GrantFiled: November 16, 2006Date of Patent: July 19, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Farid Fouad Khouri, Albert Santo Stella
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Patent number: 7977452Abstract: This invention provides a cost effective process and new Janus dendrimers where at least two dendrons are attached at the core (with or without a connector group) and where at least two of the dendrons have different functionality. Preferred are those Janus dendrimers where at least one dendron is a PEHAM dendron. Thus these Janus dendrimers are heterobifunctional in character and use unique ligation chemistry with single site functional dendrons, di-dendrons and multi-dendrons. Also included are Janus dendrons which may be used as intermediates to make the Janus dendrimers or to further react with another reactive moiety.Type: GrantFiled: March 27, 2006Date of Patent: July 12, 2011Assignee: Dendritic Nanotechnologies, Inc.Inventors: Donald A. Tomalia, Veera Reddy Pulgam, Douglas R. Swanson, Boahua Huang
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Patent number: 7977448Abstract: The invention relates to a continuous or discontinuous method for the production of highly condensed polyesters in the solid state, comprising a crystallization of a polyester material, wherein the crystallization is carried out in the presence of a gas with a dew point of (less than or equal to) ?approximately ?10° C. The invention also relates to a method for the production of polyester formed bodies using the polyester material obtained for the production of bottles, films and high strength threads.Type: GrantFiled: February 25, 2005Date of Patent: July 12, 2011Assignee: Lurgi Zimmer GmbHInventors: Brigitta Otto, Hans Reitz, Holger Bachmann, Klaus Kirsten
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Patent number: 7977449Abstract: The present invention relates to reinforced articles based on a polyamide matrix of high melt flow index and on long fibers. The articles according to the invention exhibit good mechanical properties, such as good tensile strength, good surface finish and good moldability.Type: GrantFiled: March 9, 2004Date of Patent: July 12, 2011Assignee: Rhodia Engineering Plastics S.r.l.Inventor: Gerard Bradley
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Patent number: 7973092Abstract: A method for reprocessing used PET bottles having the steps of shredding the bottles to form plastic flakes, sorting the plastic flakes according to at least one criterion into at least two partial quantities, and performing an individual processing treatment including a decontamination treatment. The device permits performing the method whereby it is possible to separate the plastic flakes produced from the threaded part of a PET bottle, these flakes being more difficult to purify, from the lighter plastic flakes from the wall of the bottle, which have a thin wall and are easier to purify, and treating them further in separate reprocessing steps.Type: GrantFiled: October 9, 2004Date of Patent: July 5, 2011Assignee: Krones AGInventors: Thomas Friedlaender, Maren Hofferbert, Timm Kirchhoff
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Patent number: 7973122Abstract: Polyamideimide coating compositions, including polyamideimide coating compositions suitable for magnet wire applications are described. Processes for preparing coating compositions, for coating articles such as magnet wire, and for curing coating compositions are also described.Type: GrantFiled: June 16, 2005Date of Patent: July 5, 2011Assignee: General Cable Technologies CorporationInventor: James J. Xu
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Patent number: 7973085Abstract: A gel composition having the formula R1O-[(AO)k(EO)m(AO)n]-R2 comprises (a) 0.1 to 60 mass % of a block-type alkylene oxide derivative, (b) an oil, and (c) 0.1 to 10 mass % of water. AO represents a C3-C4 oxyalkylene group; EO represents an oxyethylene group; k and n represent average addition mole numbers of the oxyalkylene group and m represents average addition mole number of the oxyethylene group, 1?m?70 and 1?k+n?70. The oxyethylene group is 20 to 80 mass % with respect to the sum of the oxyalkylene group (AO) and the oxyethylene group. R1 and R2 may be identical to or different from one another and are each a C1-C4 hydrocarbon group or a hydrogen atom. The composition has a continuous phase comprising the oil; and the viscosity of the composition at 25° C. is 500 mPa·s or more.Type: GrantFiled: June 6, 2007Date of Patent: July 5, 2011Assignee: Shiseido Company Ltd.Inventors: Akira Ishikubo, Takashi Ohmori, Yuki Suzuki