Polymerizing In The Presence Of A Specified Material Other Than A Reactant And Other Than Group Ia Or Group Iia Material As Sole Metal Atom Patents (Class 528/198)
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Patent number: 8026336Abstract: The present invention relates to a polycarbonate resin composition which comprises a polycarbonate resin having the repeating unit that is represented by the following general formula (1) and a hydroxyl group at terminal thereof and has the concentration of the terminal hydroxyl group of 1000 ppm or more.Type: GrantFiled: February 16, 2010Date of Patent: September 27, 2011Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Noriyuki Kato, Yoshinori Isahaya, Shu Yoshida, Jun Hagiwara, Kazuaki Kaneko, Keiichi Kameyama
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Patent number: 8022167Abstract: A liquid-phase process is provided for the manufacture from glutaronitriles and related compounds of 2,6-diaminopyridine and related compounds, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.Type: GrantFiled: December 18, 2007Date of Patent: September 20, 2011Inventors: Aaron Minter, Berlin Stokes
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Patent number: 8017713Abstract: An apparatus of a polycarbonate resin having polymerization tanks is provided. In supplying a molten reactant to a liquid phase in a polymerization tank, or supplying the molten reactant to a gas phase in the polymerization tank by an insertion pipe, in at least one polymerization tank, and/or producing a polycarbonate resin by an ester exchange reaction between an aromatic dihydroxy compound and a carbonic diester by using three vertical polymerization tanks and one horizontal polymerization tank, a wall surface temperature T of a distillation pipe is set higher than a boiling point t1 of by-produced phenol such that the relationship of the boiling point t1 of the by-produced phenol under a pressure in at least a third vertical polymerization tank, the wall surface temperature T of the distillation pipe and an inner temperature t2 of the third vertical polymerization tank satisfies t1<T?t2.Type: GrantFiled: March 29, 2007Date of Patent: September 13, 2011Assignee: Mitsubishi Chemical CorporationInventors: Kazuyuki Takahashi, Ryuuji Uchimura, Toshiyuki Hamano, Masaaki Miyamoto, Kodama Miyamoto, legal representative, Taro Miyamoto, legal representative, Hideo Miyamoto, legal representative, Hanae Miyamoto, legal representative
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Patent number: 8013105Abstract: Provided are a polycarbonate resin composition containing a glass filler, which is excellent in transparency, strength, and heat resistance and provided with high flame retardancy, and a polycarbonate resin molded article obtained by molding the resin composition. The flame-retardant polycarbonate resin composition contains a combination including (A) 55 to 95 mass % of an aromatic polycarbonate resin and (B) 45 to 5 mass % of a glass filler having a refractive index smaller or larger than a refractive index of the aromatic polycarbonate resin by 0.002 or less, and further contains, with respect to 100 parts by mass of the combination, (C) 0.05 to 2.0 parts by mass of a silicone compound having a reactive functional group and (D) 0.03 to 0.4 part by mass of an organic alkali metal salt compound and/or an organic alkaline earth metal salt compound. The polycarbonate resin molded article has a thickness of 0.3 to 10 mm which is obtained by molding the composition.Type: GrantFiled: October 11, 2007Date of Patent: September 6, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Toshio Isozaki, Kouji Satou
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Patent number: 8013106Abstract: An optical lens which can be produced by injection molding on an industrial scale, and which has a high refractive index, a low Abbe's number, a low birefringence index, a high transparency and a high glass transition temperature. The optical lens can be produced by injection molding of a polycarbonate resin (preferably having a reduced viscosity of 0.2 dl/g or higher and a glass transition temperature of 120 to 160° C.), wherein the polycarbonate resin is produced by reacting a diol component comprising 99 to 51 mol % of 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene and 1 to 49 mol % of bisphenol A with a carbonate diester. It becomes possible to produce an optical lens preferably having a refractive index of 1.60 to 1.65, an Abbe's number of 30 or smaller, a birefringence index of 300 nm or lower and an all light transmittance of 85.0% or higher.Type: GrantFiled: June 1, 2007Date of Patent: September 6, 2011Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Noriyuki Kato, Toshiaki Yamada, Eiji Koshiishi, Shu Yoshida
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Patent number: 7999057Abstract: A gas-phase, continuous process is provided for the manufacture of 2,6-diaminopyridine and related compounds from glutaronitriles, which are used industrially as compounds and as components in the synthesis of a variety of useful materials. The synthesis proceeds by means of a dehydrogenative aromatization process.Type: GrantFiled: July 8, 2008Date of Patent: August 16, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Keith W. Hutchenson, Aaron Minter, Gregg Sunshine
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Patent number: 7999056Abstract: The object of the present invention is to provide a method of producing plural kinds of aromatic polycarbonates by a melt process without changeover loss and quality deterioration. The present invention relates to a production method of an aromatic polycarbonate, comprising supplying a molten mixture of raw materials of an aromatic dihydroxy compound and/or a carbonic diester prepared in the absence of an ester exchange catalyst to polycondensation steps of two lines each equipped with three vertical reactors connected in series and one horizontal reactor, and at the same time, continuously conducting polycondensation reaction in the presence of an ester exchange catalyst.Type: GrantFiled: May 22, 2007Date of Patent: August 16, 2011Assignee: Mitsubishi Chemical CorporationInventors: Ryuuji Uchimura, Toshiyuki Hamano, Kazuyuki Takahashi, Masaaki Miyamoto, Kodama Miyamoto, legal representative, Taro Miyamoto, legal representative, Hideo Miyamoto, legal representative, Hanae Miyamoto, legal representative
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Patent number: 7998420Abstract: The invention relates to a method and a device for producing vacuum in the production of polyesters and copolyesters; unrectified vapors from at least one esterification or transesterification stage is preferably used as a driving medium in gas jet pumps for producing the vacuum in one or more polycondensation stages.Type: GrantFiled: September 16, 2008Date of Patent: August 16, 2011Assignee: Lurgi Zimmer GmbHInventors: Michael Reisen, Gerald Kriesche
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Patent number: 7999055Abstract: The present invention can provide a polycarbonate resin containing a structural unit represented by the following formula (1). wherein R represents one selected from an alkyl group having 1 to 9 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aralkyl group having 7 to 17 carbon atoms, and halogen; and n represents the number of substituting R's on a benzene ring and is an integer of 0 to 4. Y represents an alkylene group having 1 to 4 carbon atoms; and p is an integer of 0 to 4.Type: GrantFiled: May 19, 2008Date of Patent: August 16, 2011Assignee: Mitsubishi Gas Chemical Company, IncInventors: Shu Yoshida, Toshiaki Yamada
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Patent number: 7999059Abstract: The invention relates to an optical film containing aromatic polymer which shows high solubility to solvents, and methods for production thereof. Further, the invention also relates to an optical laminate, a polarizing plate, and an image display device each using the optical film. The optical film may be attained by using polyester with a specific structure. The polyester with a specific structure may be obtained by condensation polymerization of bisphenol compound(s) and dicarboxylic acid compound(s) with biphenyl structure, and preferably has no halogen atom in its chemical structure. The optical film of the invention advantageously has not only high solubility in solvents but also a high level of heat resistance and birefringence producing capability. When the content of the biphenyl structure is high, the optical film of the invention can also have large wavelength dispersion of birefringence.Type: GrantFiled: November 6, 2008Date of Patent: August 16, 2011Assignee: Nitto Denko CorporationInventors: Tomoyuki Hirayama, Toshiyuki Iida, Yutaka Ohmori, Miyuki Kurogi, Hisae Shimizu
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Patent number: 7985824Abstract: A method of making a polycarbonate is described. The method comprises reacting an activated diaryl carbonate and a dihydroxy compound at a reaction temperature in a reactor to form a reaction mixture wherein the reactor comprises a heated cover and an open space between the cover and the reaction mixture. The dihydroxy compound comprises a vapor pressure greater than or equal to 0.01 kiloPascals at the reaction temperature and the temperature of the open space in the reactor, the temperature of the cover, or the temperature of the open space and the cover is greater than or equal to the melt temperature of the monomer having the highest melt temperature.Type: GrantFiled: March 24, 2010Date of Patent: July 26, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Jorge Garcia Agudo, Ignacio Vic Fernandez, David Domingo Fuster, Miguel Angel Salomon
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Patent number: 7985823Abstract: The invention aims at providing a process for the production of polycarbonate resin which is suppressed in discoloration and reduced in the content of crystalline foreign substance, gel, and so on.Type: GrantFiled: September 25, 2007Date of Patent: July 26, 2011Assignee: Mitsubishi Chemical CorporationInventors: Kazuyuki Takahashi, Kouji Iwaki, Ryuuji Uchimura
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Patent number: 7977447Abstract: A method for forming a monomeric carbonate includes the step of combining a monofunctional alcohol or a difunctional diol with an ester-substituted diaryl carbonate to form a reaction mixture. Similarly, a method for forming a monomeric ester includes the step of combining a monofunctional carboxylic acid or ester with an ester-substituted diaryl carbonate to form a reaction mixture. These methods further include the step of allowing the reaction mixtures to react to form a monomeric carbonate or a monomeric ester, respectively.Type: GrantFiled: December 24, 2008Date of Patent: July 12, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hatem Abdallah Belfadhel, Hans-Peter Brack, Ricardo Godoy-Lopez, Dennis James Patrick Maria Willemse
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Patent number: 7968671Abstract: Copolycarbonates comprising alkylphenolchain terminator groups for adjusting the molecular weight, compositions of these copolycarbonates with additives chosen from the group of heat stabilizers and mold release agents, the use thereof for the production of moldings and moldings obtained therefrom.Type: GrantFiled: May 15, 2009Date of Patent: June 28, 2011Assignee: Bayer Material Science AGInventors: Helmut-Werner Heuer, Rolf Wehrmann
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Patent number: 7943722Abstract: Provided is a flame-retardant polyarylate resin and a composition thereof, and more particularly, a polyarylate resin prepared by co-polymerizing 4,4?-dihydroxyphenylacetylene (DHPA), phthaloyl chloride (PC) and bishydroxyphenol (BHP) and a composition of the polyarylate resin. The polyarylate resin has lower heat release capacity than a conventional resin or a resin containing a halogen-based flame-retardant, is environmentally friendly, does not produce toxic materials, and has more excellent flame-retardancy than a conventional halogen-based flame-retardant and a flame-retardant resin. In addition, the polyarylate resin has excellent processibility and compatibility due to high solubility in a commonly used industrial solvent and has excellent thermal stability due to a high molecular weight.Type: GrantFiled: December 18, 2009Date of Patent: May 17, 2011Assignee: Korea Research Institute of Chemical TechnologyInventor: Kyoung Mahn Kim
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Patent number: 7939621Abstract: A cyclic carbonate monomer, including: wherein R1, R2, and R3 are independently selected from the group consisting of H, linear or branched, substituted or unsubstituted alkyl; R10 is a connecting group selected from the group consisting of linear or branched, substituted or unsubstituted alkyl, heteroalkyl, cycloalkyl, heterocyclic, aryl and heteroaryl; R4 is an optional bridging group selected from the group consisting of linear or branched, substituted or unsubstituted alkyl, heteroalkyl, cycloalkyl, heterocyclic, aryl and heteroaryl; Z is selected from the group consisting of O, NH, NR, and S; G is a guanidine group; and P is a protecting group. The cylic carbonate monomer can be reacted with an initiator including a drug, drug candidate, probe or other molecule of interest to form an oligomer with the molecule of interest attached to one end of a carbonate backbone and guanidine groups attached to the carbonate backbone.Type: GrantFiled: April 30, 2009Date of Patent: May 10, 2011Assignees: International Business Machines Corporation, Stanford UniversityInventors: Christina Cooley, James Lupton Hedrick, Matthew Kiesewetter, Fredrik Nederberg, Brian Trantow, Robert Waymouth, Paul Wender
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Patent number: 7928182Abstract: An organic composition including a) a glycerol polycarbonate of the formula: in which m is equal to at least 2, and has a value from 2 to 100; b) a glycerol of formula: in which n and p are each equal to at least 2, each having a value from 2 to 150; and c) a [(?-hydroxymethyl) oxyethylene (?-hydroxymethyl) ethylene carbonate)] copolymer of the formula: in which x is equal to at least 2 and has a value between 2 and 100, y is equal to at least 2 and has a value between 2 and 100 and q is equal to at least 2 and has a value between 2 and 100.Type: GrantFiled: August 10, 2005Date of Patent: April 19, 2011Assignees: Condat S.A., INRA (Institut National de Recherche Agronomique), INPT (Institut National Polytechnique de Toulouse)Inventors: Nguyen T. Dinh, Zéphirin Mouloungui, Philippe Marechal
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Patent number: 7910685Abstract: Conjugates between a protein and a water soluble polymer comprising multiple degradable carbonate linkages are provided.Type: GrantFiled: June 29, 2010Date of Patent: March 22, 2011Assignee: Nektar TherapeuticsInventors: J. Milton Harris, Michael D. Bentley, Xuan Zhao, Xiaoming Shen
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Patent number: 7906612Abstract: The object of the invention is to provide plant-derived component-containing polycarbonates with improved color tone, and a process for their production. This object of the invention is achieved by reducing the inorganic impurities in the polymer starting material and by reducing the inorganic impurities in the polymer product.Type: GrantFiled: August 27, 2007Date of Patent: March 15, 2011Assignee: Teijin LimitedInventors: Eiichi Kitazono, Akimichi Oda, Takanori Miyoshi
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Patent number: 7906212Abstract: This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend wherein the thermoplastic article comprises at least one polyester composition comprising at least one polyester which comprises terephthalic acid and 2,2,4,4-tetramethyl-1,3,-cyclobutanediol.Type: GrantFiled: March 16, 2010Date of Patent: March 15, 2011Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell
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Patent number: 7906211Abstract: This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend wherein the thermoplastic article comprises at least one polyester composition comprising at least one polyester which comprises terephthalic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediol.Type: GrantFiled: March 16, 2010Date of Patent: March 15, 2011Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell
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Patent number: 7902318Abstract: A melt phase process for making a polyester polymer melt phase product by adding an antimony containing catalyst to the melt phase, polycondensing the melt containing said catalyst in the melt phase until the It.V. of the melt reaches at least 0.75 dL/g. Polyester polymer melt phase pellets containing antimony residues and having an It.V. of at least 0.75 dL/g are obtained without solid state polymerization. The polyester polymer pellets containing antimony residues and having an It.V. of at least 0.70 dL/g obtained without increasing the molecular weight of the melt phase product by solid state polymerization are fed to an extruder, melted to produce a molten polyester polymer, and extruded through a die to form shaped articles. The melt phase products and articles made thereby have low b* color and/or high L* brightness, and the reaction time to make the melt phase products is short.Type: GrantFiled: July 14, 2010Date of Patent: March 8, 2011Assignee: Eastman Chemical CompanyInventors: Mary Therese Jernigan, Michael Paul Ekart, Richard Gill Bonner
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Patent number: 7893185Abstract: A polycarbonate copolymer contains: 0.1 to 50 mol % of a monomer unit represented by the following formula (1); and a monomer unit represented by the following formula (2). In the polycarbonate copolymer, the content of biphenols having a structure represented by the following formula (3) is 90 mass ppm or less. In the formula, R1 and R2 each independently represent a hydrogen atom, an aliphatic hydrocarbon group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms or a halogen atom. In the formula: R3 and R4 each independently represent a hydrogen atom, an aliphatic hydrocarbon group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms or a halogen atom; and X represents any one of bonding groups represented by —O—, —S—, —SO—, —SO2—, —CO— and 9,9-fluorenylidene group. In the formula, R1 and R2 each independently represent a hydrogen atom, an aliphatic hydrocarbon group having 1 to 6 carbon atoms, an aryl group having 6 to 12 carbon atoms or a halogen atom.Type: GrantFiled: October 18, 2007Date of Patent: February 22, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Takaaki Hikosaka, Yasushi Hamada
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Patent number: 7863404Abstract: A polycarbonate is provided that contains repeat units derived from isosorbide and a residue derived from an activated diaryl carbonate. The polycarbonate has 1H-NMR peaks associated with the repeat units derived from isosorbide. The polycarbonate contains no more than a maximum allowable amount of sorbitol-derived color bodies. If these color bodies are present in the polycarbonate it has a 1H-NMR peak associated with the color bodies. The maximum allowable amount of color bodies are present when the integrated area of the 1H-NMR peak associated with the color bodies divided by the integrated areas of the 1H-NMR peaks associated with the repeat units derived from isosorbide is 0.025.Type: GrantFiled: September 26, 2008Date of Patent: January 4, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Marianne Guyader, Han Vermeulen, Dennis James Patrick Maria Willemse
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Patent number: 7863403Abstract: The present invention relates to a process for the continuous preparation of polycarbonates or diaryl carbonates by the method of the phase boundary process, in which both the mixing of the organic and aqueous phase and the upstream oligomerization step or aryl chloroformate and/or diaryl carbonate preparation step are effected in a special pump.Type: GrantFiled: February 12, 2009Date of Patent: January 4, 2011Assignee: Bayer MaterialScience AGInventors: Helmut-Werner Heuer, Pieter Ooms
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Patent number: 7858727Abstract: The invention relates to a combined process for the preparation of polycarbonate by the phase boundary process and downstream electrolysis of sodium chloride-containing process wastewater.Type: GrantFiled: February 23, 2009Date of Patent: December 28, 2010Assignee: Bayer MaterialScience AGInventors: Pieter Ooms, Andreas Bulan, Rainer Weber, Johann Rechner
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Patent number: 7858729Abstract: A catalyst, co-catalyst, and/or chain transfer agent is added at a time after initiation of an addition polymerization reaction to produce a polymer product with a widened molecular weight distribution relative to having all of the components in the original reaction mixture. The catalyst, co-catalyst, or chain transfer agent may be added discretely or continuously to the reaction to produce a product with a bimodal, trimodal, or other broadened molecular weight distribution.Type: GrantFiled: May 29, 2008Date of Patent: December 28, 2010Assignee: Novomer, Inc.Inventor: Scott D. Allen
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Patent number: 7858728Abstract: Disclosed herein is a polycarbonate comprising a terminal olefin group of the formula wherein R1 is a C1-C40 hydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or C4-C30 polyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, R2 to R4 are each independently a hydrogen or a C1-C40 hydrocarbon that can be unsubstituted or substituted with a halogen, olefin, ether, ketone, or a C4-C30 polyoxyalkylene functionality in which the alkylene groups contain 2 to 6 carbon atoms, and optionally wherein any two of R1 to R4 together form a monocyclic, bicyclic, or tricyclic ring system optionally substituted with a heteroatom in each ring.Type: GrantFiled: October 19, 2007Date of Patent: December 28, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Bernard Jansen, Jan Henk Kamps, Hans Looij, Han Vermeulen, Dennis Willemse
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Patent number: 7847051Abstract: Continuous processes for preparing polycarbonates having a weight average molecular weight Mw, of 15,000 to 200,000 g/mol, the processes comprising reacting a dihydroxydiarylalkane and phosgene in the presence of a catalyst in a phase boundary process comprising: continuously dispersing in a disperser an organic phase comprising at least a portion of the phosgene and a solvent suitable for the polycarbonate and an aqueous phase comprising the dihydroxydiarylalkane, water and an alkali solution present in an amount of 1.5 to 2.5 moles per mole of the dihydroxydiarylalkane, to form a mixture; reacting the mixture in a first reactor with a residence time of less than 0.5 seconds; further reacting the mixture in a second reactor with addition of further alkali solution and, optionally, a chain terminator; and effecting further condensation in a third reactor with addition of further alkali solution and, optionally, a chain terminator, in the presence of the catalyst.Type: GrantFiled: March 5, 2009Date of Patent: December 7, 2010Assignee: Bayer MaterialScience AGInventors: Wolfgang Ebert, Christian Kords, Rolf Bachmann, Lars Obendorf, Johan Vanden Eynde, Bert Ruytinx, Johann Seeba
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Patent number: 7838604Abstract: Disclosed is a new method and compositions from the method consisting of block copolycarbonate/phosphonates that exhibit an excellent combination of flame resistance, hydrolytic stability, high Tg, low melt viscosity, low color and high toughness. Also disclosed are polymer mixtures or blends comprised of these block copolycarbonate/phosphonate compositions and commodity and engineering plastics and articles produced therefrom. Further disclosed are articles of manufacture produced from these materials, such as fibers, films, coated substrates, moldings, foams, adhesives and fiber-reinforced articles, or any combination thereof.Type: GrantFiled: November 28, 2006Date of Patent: November 23, 2010Assignee: FRX Polymers, Inc.Inventor: Dieter Freitag
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Patent number: 7834125Abstract: A melt polymerized polycarbonate comprising repeat units in the polycarbonate derived from the melt polymerization of monomers (II) and/or (III), monomer (IV), and optionally monomer (VIII), wherein monomers (II) and (III) are diaryl dihydroxy compounds, monomer (IV) is a sterically hindered dihydroxy compound, and monomer (VIII) is a non-sterically hindered dihydroxy diaryl compound; wherein the mole ratio of repeat units in the polycarbonate derived from monomers [(II)+(III)]:(IV):(VIII) is 15-70:1-85:0-50, the sum of the mole percent of repeat units in the polycarbonate derived from monomers [(II)+(III)]+(IV) is greater than or equal to 50 mole %, and the sum of the mole percent of units in the polycarbonate derived from monomers [(II)+(III)]+(IV)+(VIII) is 100 mole %; and wherein the polycarbonate has an L* value that is at least 1 L* unit value higher than the same polycarbonate in which monomer (IV) is replaced by bisphenol A.Type: GrantFiled: December 18, 2008Date of Patent: November 16, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Hans-Peter Brack, Dennis Karlik, Jan-Pleun Lens, Dennis James Patrick Maria Willemse, Josef Gerardus Berndsen
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Patent number: 7820779Abstract: A nanostructured hybrid liquid oligomer composition including at least one epoxy-functional component (A), at least one cyclic carbonate component (B), at least one amine-functional component (C), and, optionally, at least one acrylate (methacrylate) functional component (D), wherein at least one epoxy, amine, or acrylate (methacrylate) component contains alkoxysilane units. The composition is highly curable at low temperatures (approximately 10 to 30° C.) with forming of nanostructure under the influence of atmospheric moisture and the forming of active, specific hydroxyl groups by reaction of cyclic carbonates with amine functionalities. According to the present invention, the cured composition has excellent strength-stress properties, adhesion to a variety of substrates, appearance, and resistance to weathering, abrasion, and solvents.Type: GrantFiled: March 13, 2009Date of Patent: October 26, 2010Assignees: Polymate, Ltd., Nanotech Industries, Inc.Inventors: Olga Birukov, Dmitry Beilin, Oleg Figovsky, Alexander Leykin, Leonid Shapovalov
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Patent number: 7816484Abstract: A method for preparing a polyalkylene glycol carbonate is disclosed comprising reacting a hydroxyl functional polyalkylene glycol and a reagent selected from carbonates and chloroformates in the presence of an aromatic solvent and an amine.Type: GrantFiled: February 27, 2007Date of Patent: October 19, 2010Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.Inventor: Daniel E. Verral
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Patent number: 7814626Abstract: The invention provides a process for the preparation of polycarbonate by the melt transesterification process, polycarbonate having a low electrostatic charge obtainable by this process, and moldings or extrudates, in particular optical data storage media or light-diffusing plates, made from this polycarbonate.Type: GrantFiled: May 9, 2008Date of Patent: October 19, 2010Assignee: Bayer MaterialScience AGInventors: Pete Fischer, Wilfried Haese, Alexander Meyer
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Patent number: 7812061Abstract: A method for manufacturing a recycled polycarbonate raw material for a flame retardant resin composition from discarded and/or recovered optical discs using a polycarbonate resin as a substrate material, and includes (a) a step to identify if 2,2-bis(4-hydroxyphenyl)propane as a divalent phenol of the polycarbonate resin raw material is polymerized as the sole raw material in the polycarbonate resin as the substrate material of the discarded and/or recovered optical discs and (b) a step to remove impurities by a chemical treatment by separating only the discarded and/or recovered optical discs, wherein the polycarbonate resin is identified as polymerized by using 2,2-bis(4-hydroxyphenyl)propane as the sole raw material.Type: GrantFiled: May 10, 2007Date of Patent: October 12, 2010Assignee: Idemitsu Kosan Co., Ltd.Inventor: Toshio Isozaki
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Patent number: 7807772Abstract: Disclosed herein is a copolymer comprising isosorbide carbonate units and a polysiloxane block, wherein the copolymer comprises greater than or equal to 50 mol % isosorbide carbonate units.Type: GrantFiled: December 23, 2009Date of Patent: October 5, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Gautam Chatterjee, Dibakar Dhara, Muthuvijayan Jegathesan
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Patent number: 7799889Abstract: The present invention provides a polycarbonate resin produced by the continuous interfacial process characterized in that after alkaline hydrolysis with sodium hydroxide, the polycarbonate resin contains an amount of 0.01 to 150 ppm of carbamate compounds according to formula (1) said amount measured by high pressure liquid chromatography, wherein R1 and R2 independently of one another denote hydrogen or C1-C12-alkyl, or together denote C4-C12-alkylidene, and R3 and R4 independently of one another denote hydrogen. C1-C12-alkyl or phenyl, or together with the carbon atom to which they are bonded form cyclohexyl or trimethylcyclohexyl, the process comprising phosgene reacting with at least one bisphenol at 8 to 17% molar excess of phosgene relative to the bisphenol.Type: GrantFiled: December 20, 2005Date of Patent: September 21, 2010Assignee: Bayer Materialscience AGInventors: Alexander Meyer, Helmut Einberger, Wolfgang Ebert, Michael Prein, Wilfried Haese, Uli Franz, Stephan Konrad
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Patent number: 7790834Abstract: The present invention relates to novel copolymers comprising unsubstituted or R-substituted trimethylene carbonate and poly(trimethylene ether)glycol. The copolymers find use in areas including personal care, coatings and lubricants.Type: GrantFiled: November 25, 2008Date of Patent: September 7, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert DiCosimo, Neville Everton Drysdale, Hari Babu Sunkara
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Patent number: 7790832Abstract: A method for purifying a 2-aryl-3,3-bis(hydroxyaryl)phthalimidine comprises contacting a crude 2-aryl-3,3-bis(hydroxyaryl)phthalimidine with a purification agent, removing a 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compound from the crude 2-aryl-3,3-bis(hydroxyaryl)phthalimidine, and producing a purified 2-aryl-3,3-bis(hydroxyaryl)phthalimidine product comprising less than 200 parts per million of the 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compound. The purification agent is selected from the group consisting of an acidic material, an organic acid chloride, an organic anhydride, or a combination thereof. The 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compound has a formula: wherein each R1 is independently selected from a group consisting of a hydrocarbyl radical, a nitro radical, and a halogen atom; “a” is an integer from 0 to 4; and Ar1 and Ar2 are independently at each occurrence an aromatic radical.Type: GrantFiled: September 4, 2007Date of Patent: September 7, 2010Assignee: Sabic Innovative Plastics IP B.V.Inventors: Balakrishnan Ganesan, Pradeep Jeevaji Nadkarni, Kumar Arun Satyanarayana, Venkata Rama Narayanan Ganapathy Bhotla, Suresh Shanumgam, Gurram Kishan, Ravindra Vikram Singh
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Patent number: 7786252Abstract: Disclosed is a process for the preparation of multilayered, shaped articles having high transparency and low haze having at least one layer contains one or more thermoplastic polymers selected from polyesters, polycarbonates, and homogeneous blends thereof, and a separate layer which contains a transamidized, homogeneous blend of a least two polyamides. The thermoplastic polymer components and the polyamide components have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enable the incorporation of regrind into one or more of the layers of the article while maintaining high clarity. These articles can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into one or more layers to impart oxygen-scavenging properties.Type: GrantFiled: February 27, 2006Date of Patent: August 31, 2010Assignee: Eastman Chemical CompanyInventors: Wesley Raymond Hale, Thomas Joseph Pecorini, Mark Edward Stewart, Martin Emerson Rogers, Spencer Allen Gilliam, Michael Duane Cliffton, Marcus David Shelby
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Patent number: 7786246Abstract: Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and a polysiloxane block.Type: GrantFiled: December 23, 2009Date of Patent: August 31, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Bernardus Johannes Paulus Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Daniel Steendam
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Patent number: 7781540Abstract: A resin composition, and molded articles thereof, where the resin composition simultaneously satisfies resistances, such as heat and environmental resistance, and moldability at high levels, and has excellent optical properties, such as high refractivity and low birefringence. The resin composition contains a polyester resin formed from a dicarboxylic acid component and a diol component (a) and a polycarbonate resin formed from a carbonate-forming component and a diol component (b), the diol component (a) containing a specific fluorene-containing compound and the diol component (b) containing a specific fluorene-containing compound.Type: GrantFiled: July 13, 2005Date of Patent: August 24, 2010Assignee: Osaka Gas Co., Ltd.Inventors: Takatsune Yanagida, Masatoshi Ando, Yoshihiko Imanaka, Masahiro Yamada, Shinichi Kawasaki, Mitsuaki Yamada, Hiroaki Murase, Tsuyoshi Fujiki, Kana Kobori
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Patent number: 7776992Abstract: A polychloroprene latex composition which has a low viscosity and which can be made to have a high solid content, obtained by emulsion polymerization of chloroprene alone or chloroprene and a monomer copolymerizable with chloroprene in the presence of a polyvinyl alcohol and a nonionic emulsifier, such as polyoxyethylene alkyl ether.Type: GrantFiled: May 12, 2004Date of Patent: August 17, 2010Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Kosuke Watanabe, Motohiro Ose
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Patent number: 7772356Abstract: The present invention discloses an infrared absorption filter which enables a coloring matter having infrared absorptivity to be contained or dispersed uniformly in a high concentration and has excellent durability, and an infrared absorption panel comprising this infrared absorption filter. The infrared absorption filter comprises a polycarbonate resin which contains 20 to 100 mol % of a recurring unit having a fluorene skeleton represented by the formula (1) and 0 to 80 mol % of a recurring unit represented by the formula (2), and a coloring matter having infrared absorptivity.Type: GrantFiled: October 19, 2005Date of Patent: August 10, 2010Assignee: Osaka Gas Co., Ltd.Inventors: Masahiro Yamada, Tsuyoshi Fujiki, Shinichi Kawasaki, Mitsuaki Yamada, Takatsune Yanagida, Masatoshi Ando, Yoshihiko Imanaka
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Patent number: 7772357Abstract: A water soluble polymer comprising multiple degradable carbonate linkages in a backbone and, for each carbonate linkage in the backbone, an oligomer linked thereto by the carbonate linkage, wherein the oligomer is branched.Type: GrantFiled: September 14, 2009Date of Patent: August 10, 2010Assignee: Nektar TherapeuticsInventors: J. Milton Harris, Michael D. Bentley, Xuan Zhao, Xiaoming Shen
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Patent number: 7754845Abstract: The object of the present invention is to provide a production method of a high molecular weight aromatic polycarbonate containing a reduced amount of a high melting point product, and having less thermal history received and excellent hue by a melt process. The present invention relates to a production method of an aromatic polycarbonate, characterized in that in producing an aromatic polycarbonate using an aromatic dihydroxy compound and a carbonic diester as raw materials and using plural reactors, a molten reactant temperature T1 (° C.) in at least one reactor A and a molten reactant temperature T2 (° C.) in a reactor B subsequent to the reactor A are satisfied with the relationship of T2<T1, and an evaporation surface area per unit treatment amount of a molten reactant in the reactor to which a molten reactant having a limiting viscosity of 0.1 dl/g or more is supplied is 1.0 m2·hr/m3 or more.Type: GrantFiled: May 22, 2007Date of Patent: July 13, 2010Assignee: Mitsubishi Chemical CorporationInventors: Toshiyuki Hamano, Ryuuji Uchimura, Kazuyuki Takahashi, Masaaki Miyamoto
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Patent number: 7740941Abstract: This invention relates to thermoplastic article having one or more decorative materials embedded therein which is obtained by applying heat and pressure to one or more laminates wherein at least one of said laminates comprises, in order, (1) an upper sheet material; (2) one or more decorative materials; and (3) a lower sheet material; wherein the upper and lower sheet materials are formed from a polyester/aromatic polycarbonate blend wherein the thermoplastic article comprises at least one polyester composition comprising at least one polyester which comprises terephthalic acid and 2,2,4,4-tetramethyl-1,3-cyclobutanediol.Type: GrantFiled: January 29, 2009Date of Patent: June 22, 2010Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, David Scott Porter, Gary Wayne Connell
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Patent number: 7728099Abstract: The present invention relates to a process for preparation of polycarbonates with weight-average molar mass MW?230,000 g/mol and with ?2% by weight content of cyclic compounds, including the following steps: (a) reaction of at least one oxirane with carbon dioxide in the presence of a metal-polycarboxylic acid compound in an aprotic, non-water-miscible solvent at a temperature of from 40 to 120° C. and at a pressure of from 1 to 100 bar, where the molar ratio of monomer to metal-polycarboxylic acid compound is ?75, (b) addition of an aqueous solution of an inorganic acid to the reaction mixture once the reaction has ended, (c) removal of the aqueous phase, (d) if appropriate, washing of the remaining organic phase with water, and (e) devolatilization and drying of the resultant slurry of the polycarbonate in the aprotic, non-water-miscible solvent, and to the polycarbonate prepared via the process, and also to the use of the polycarbonate.Type: GrantFiled: December 9, 2005Date of Patent: June 1, 2010Assignee: BASF SEInventor: Gerrit Luinstra
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Patent number: 7718755Abstract: The above-described and other deficiencies of the art are met by a method of making a polycarbonate polymer comprising isosorbide carbonate units, comprising melt reacting a dihydroxy compound comprising an isosorbide of the general formula (2a): and an activated carbonate, in the presence of a catalyst consisting essentially of a sodium salt capable of providing a hydroxide ion, wherein the polycarbonate polymer comprises greater than or equal to 50 mol % isosorbide carbonate units, and wherein the polycarbonate polymer has a Mw of greater than or equal to about 40,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising the isosorbide carbonate unit, including isosorbide homopolycarbonate and an isosorbide-based polyester-polycarbonate, are also disclosed, as are a thermoplastic composition and an article including the isosorbide-based polycarbonate polymer.Type: GrantFiled: October 18, 2007Date of Patent: May 18, 2010Assignee: SABIC Innovative Plastics IP B.V.Inventors: Guatam Chatterjee, Dibakar Dhara, Muthuvijayan Jegathesan
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Patent number: 7718759Abstract: The invention is directed to polyester processes that utilizes a pipe reactor in the esterification, polycondensation, or both esterification and polycondensation processes. Pipe reactor processes of the present invention have a multitude of advantages over prior art processes including improved heat transfer, volume control, agitation and disengagement functions.Type: GrantFiled: July 15, 2008Date of Patent: May 18, 2010Assignee: Eastman Chemical CompanyInventor: Roger Bruce DeBruin