Sulfur-containing Reactant Patents (Class 528/290)
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Patent number: 10227446Abstract: Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (Mw,1/Mw,2), increased significantly at a rate which permits the use of reactive extrusion to produce high molecular weight aliphatic polyesters in a simple, economically feasible manner.Type: GrantFiled: November 6, 2015Date of Patent: March 12, 2019Assignee: Teknologian tutkimuskeskus VTT OyInventors: Leena Nurmi, Thomas Gädda
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Patent number: 9080013Abstract: A method to efficiently produce an aliphatic polyester and to improve the thermal stability of the resulting aliphatic polyester. A sulfonic acid compound is used as a co-catalyst at the time of a ring-opening bulk polymerization of a cyclic ester using a tin compound catalyst.Type: GrantFiled: June 13, 2014Date of Patent: July 14, 2015Assignee: KUREHA CORPORATIONInventors: Tatsuaki Miyashita, Fuminori Kobayashi, Hiroyuki Sato
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Publication number: 20150094447Abstract: The invention relates to polymers comprising NOS agonists and one or more monomers selected from the group consisting of lactide, glycolide and epsiloncaprolactone, wherein the NOS agonist is incorporated as repeating monomer units into the body or backbone of the polymer are disclosed. The NOS agonist may comprise one or more carboxylic acid groups and one or more alkylhydroxy groups. In another embodiment, the NOS agonist may comprise a carboxylic acid group and an alkylhydroxy group that can be joined to form a lactone containing cyclic ring. In another embodiment, the NOS agonist comprises HMG CoA reductase inhibitor or statin.Type: ApplicationFiled: November 14, 2014Publication date: April 2, 2015Applicant: PALMETTO PHARMACEUTICALS LLCInventor: Wayne H. KAESEMEYER
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Patent number: 8952122Abstract: A polyamide modified by a compound including a sulfonate group, as well as a method for preparing the polyamide and to articles obtained from said modified polyamide are described. A modified polyamide obtained from a mono-functional aromatic sulfonate compound is also described.Type: GrantFiled: June 24, 2010Date of Patent: February 10, 2015Assignee: Rhodia OperationsInventors: Franck Touraud, Stéphane Jeol
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Publication number: 20140323651Abstract: The present invention relates to the use of a compound of formula (I): wherein: —R represents —OH or —NH2; —A1 represents a divalent alkylene radical, straight or branched, having from 2 to 20 carbon atoms; —A2 represents a divalent alkylene radical, straight or branched, having from 1 to 20 carbon atoms; —X1 and X2 represent, independently of each other, —NH— or ?O—; —A3 represents a divalent alkylene radical, straight or branched, having from 1 to 10 carbon atoms; —Z represents a hydrogen or a group of formula (A?): wherein A1, A3 and R are as defined above in formula (I), for the preparation of a polymer chosen among polyurethane, polyester and polyamide.Type: ApplicationFiled: November 15, 2012Publication date: October 30, 2014Inventors: Lise Maisonneuve, Thomas Lebarbe, Henri Cramail, Carine Alfos, Benoît Gadenne, Eric Cloutet
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Patent number: 8748560Abstract: A blood cells removal module including a casing having an inlet into which a blood flow before blood cells removal flows, and an outlet in which a blood flow after blood cells removal is discharged, an adsorbent for blood cells removal of short fiber shape accommodated in the casing, a mesh being provided inside the inlet and the outlet, respectively, and holding the adsorbent for blood cells removal in the casing, wherein a length of the adsorbent for blood cells removal is within a range from 1 to 60% of the internal diameter of the casing.Type: GrantFiled: June 21, 2013Date of Patent: June 10, 2014Assignee: Nikkiso Company, Ltd.Inventors: Michiharu Nakao, Seishu Hayashi, Toshiaki Chiba
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Patent number: 8729176Abstract: A process is disclosed wherein ricinoleic acid from petroleum alternative vegetable castor oil that has a hydroxyl group at the 12-position or a derivative thereof (an ester or a hydrogenated compound thereof) is polymerized in the presence of a synthetic zeolite and an immobilized lipase at around normal temperature without using any harmful polymerization catalysts or organic solvents which can cause environmental pollution whereby a polyester useful in the industry that has a weight average molecular weight of 20,000 or more is obtained. This high-molecular weight polyester is crosslinked to give a crosslinked elastomer that is comparable to synthetic rubbers.Type: GrantFiled: September 4, 2007Date of Patent: May 20, 2014Assignee: Keio UniversityInventors: Hiroki Ebata, Shuichi Matsumura
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Publication number: 20130344126Abstract: Bioerodable poly(etheresteramides) and matrices formed therefrom, such as medical device coatings, are described. The matrices show desirable erosion properties desirable for therapeutic use. The matrices can include a bioactive agent which can be used to treat medical conditions.Type: ApplicationFiled: June 25, 2013Publication date: December 26, 2013Inventors: Kyle Eastenson, Aleksey V. Kurdyumov, Darin DuMez, Klaus Wormuth
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Patent number: 8541538Abstract: An adsorbent for the removal of blood cells, which is formed from a hydrophobic polymer resin and has a surface center line average roughness of 5 to 100 nm. The hydrophobic polymer resin is preferably a polyarylate resin (PAR), polyethersulfone resin (PES), polysulfone resin (PSF), or a polymer alloy consisting of two or more of these resins. The adsorbent for the removal of blood cells can take the form of beads, hollow fibers, or solid fibers.Type: GrantFiled: April 17, 2009Date of Patent: September 24, 2013Assignee: Nikkiso Co., Ltd.Inventors: Michiharu Nakao, Seishu Hayashi
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Publication number: 20130217852Abstract: A biodegradable polyesteretheramide for manufacturing films and moulded products, for example for application in the protection of foodstuff products and films for agriculture, contains a compound with at least 3 groups capable of reacting with one or several types of the active groups present in the reaction mixture, that is, compounds which, while containing ether groups in their structure, have active groups capable of reacting in the reaction mixture to form amide groups, and which simplifies and shortens the preparation process, reducing its economic cost and obtaining products of greater transparency and higher strain at failure, while maintaining other properties such as resistance to tearing and puncture, and allowing greater widths of films to be made with smaller thicknesses.Type: ApplicationFiled: February 4, 2013Publication date: August 22, 2013Applicant: SOCIEDAD ANONIMA MINERA CATALANO ARAGONESAInventor: SOCIEDAD ANONIMA MINERA CATALANO ARAGONESA
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Patent number: 8404795Abstract: Polymers for photoresists and monomers for incorporation into those polymers are disclosed. The polymers comprise a photoacid generator (PAG) component and at least a second component that is photolytically stable and acid-stable. The polymers may also contain a third, acid-labile component. The photoacid generator is based on N-sulfoxyimides and related moieties that contain photolabile oxygen-heteroatom and oxygen-aromatic carbon bonds.Type: GrantFiled: August 26, 2010Date of Patent: March 26, 2013Assignee: The Research Foundation for the State University of New YorkInventor: Robert L. Brainard
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Publication number: 20120177592Abstract: A method of developing degradable linear poly(ethylene glycol) PEG (DPEG) with multiple functioning capacities, which can be used as drug carriers for cancer cell delivery. A DPEG may be effective in targeting cancerous tumors through an enhanced permeation and retention effect (EPR). The DPEG will then degrade in the acidic extracellular fluid of solid tumors leading to fast cellular internalizations, finally degrading in the lysosome for efficient renal clearance. These may be used in conjunction with drugs and/or targeting groups. Furthermore, DPEGs are thermoresponsive, on an as needed basis, making them useful for in vivo application.Type: ApplicationFiled: May 30, 2008Publication date: July 12, 2012Applicant: UNIVERSITY OF WYOMINGInventors: Maciej Radosz, Youqing Shen
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Publication number: 20120172529Abstract: The invention relates to coloured and/or fluorescent copolycondensates which are obtained by reaction of colourants substituted by at least two reactive groups which do not interfere with one another, with selected cyclic dicarboxylic acids (especially 1,4-cyclohexanedicarboxylic acid), aliphatic diols (especially ethylene glycol), cyclic diamines (especially isophoronediamine) and/or amino acids in particular amounts.Type: ApplicationFiled: September 15, 2010Publication date: July 5, 2012Applicant: BASF SEInventors: Thomas Ruch, Thomas Eichenberger, Peter Sutter, Christoph Krebs, Ursula Luterbacher
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Publication number: 20120135054Abstract: Cationic poly(ester ether amide)s (PEEAs) and compositions comprising PEEAs and biomolecules such as nucleic acids and proteins. Also, a method for intracellular delivery of biomolecules using complexes of the PEEAs and biomolecules. For example, PEEAs can be used as transfection agents for nucleic acids such as DNA and RNA.Type: ApplicationFiled: June 29, 2010Publication date: May 31, 2012Applicant: CORNELL UNIVERSITYInventors: Chih-Chang Chu, Jun Wu, Martha A. Mutschler-Chu
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Publication number: 20120121682Abstract: Various embodiments of the invention relate to a cRGD peptide derivative and an associated manufacturing method, and to an implant having a coating containing a cRGD peptide derivative. One aspect of the invention is the provision of a cRGD peptide derivative having the formula (1): wherein x=0-8, in particular 4-8, and R is a hydrophobic group.Type: ApplicationFiled: November 8, 2011Publication date: May 17, 2012Inventor: Alexander Borck
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Patent number: 8147966Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.Type: GrantFiled: March 5, 2010Date of Patent: April 3, 2012Assignee: 3M Innovative Properties CompanyInventors: Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, Jr.
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Publication number: 20120071626Abstract: A fluorinated bis(acyl)-containing compound of Formula (I), where R1, Ar, L, R2, R3, Rf, n, p and q are as defined in the claims, and a fluorinated polyester formed from the fluorinated bis(acyl) compound are described. More particularly, the fluorinated bis(acyl) has an aromatic ring bonded to two acyl groups plus at least one third group that contains a perfluoroalkylsulfonamido group. The fluorinated polyesters formed from the fluorinated bis(acyl)-containing compound can be used to provide a low energy surface with a relatively low refractive index compared to many other polyesters. A method of preparing a monosubstituted-arylene compound of formula Rf1-L2-CH2-Ar2—CH2—W, where Ar2, Rf1, L2, R6 and W are as defined in the claims by reaction of a compound of formula Rf1-L2-H with a compound of formula W—CH2-Ar2—CH2—W.Type: ApplicationFiled: June 7, 2010Publication date: March 22, 2012Inventors: Yu Yang, Lei Wang, George G.I. Moore
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Publication number: 20110301323Abstract: A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.Type: ApplicationFiled: February 25, 2010Publication date: December 8, 2011Applicant: Dow Global Tecnologies LLCInventors: Tina L. Arrowood, Paul R. Elowe, Jason C. MacDonald, Ernesto Occhiello
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Patent number: 8026289Abstract: A fluorinated polyoxyalkylene glycol diamide surfactant of formula 1 B—X—COCH2O—[—CpH2pO—]n—CH2CO—X—Ra??(1) wherein B is M or Ra, M is an ionizable hydrogen, ammonium, alkali metal, or alkaline earth metal, p is from about 2 to about 4, n is from about 5 about 43, each X is independently NR, SCH2CH2NR, SO2NRCH2CH2NR, or SO2CH2CH2NR; R is hydrogen, or a linear or branched alkyl group CbH(2b+1) wherein b is 1 to about 18, Ra is Rf(CH2CF2)d—(CgH2g)—; Rf(OCF2CF2)r—(CgH2g)—; RfOY—; Rf(CH2)h[(CF2CF2)i(CH2CH2)j]k—; Rf(CgH2g)—; or H(CcF2c)—(CgH2g)—; Y is CFHCF2O(CwH2w)—; or CF(CF3)CONH—(CgH2g)—; and each Rf is independently CcF(2c+1) wherein c is 1 to about 6.Type: GrantFiled: October 21, 2008Date of Patent: September 27, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Peter Michael Murphy, Anilkumar Raghavanpillai
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Patent number: 8026339Abstract: A polysulfone is provided with a nitrogen-containing functional group having an affinity to an acid, an electrolyte membrane using the polysulfone, and a fuel cell including the electrolyte membrane. In particular, the polysulfone includes a nitrogen-containing functional group that has an affinity to an acid, such as a phosphoric acid, thereby having an excellent acid retaining ability. In an electrolyte membrane including the polysulfone and an acid, the amount of the retained acid can be controlled. Therefore, the electrolyte membrane has a high ionic conductivity and a high mechanical strength. A polysulfone blend of polysulfone and a thermoplastic resin prevents the dissolution of polysulfone by phosphoric acid, so that an electrolyte membrane using the polysulfone blend has an improved durability. A cross-linked reaction product of polysulfone, a cross-linking agent and a polymerization product of polysulfone, a thermoplastic resin, and a cross-linking agent strongly resist a phosphoric acid.Type: GrantFiled: June 1, 2007Date of Patent: September 27, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Chung-kun Cho, Myung-jin Lee, Myeong-soon Kang
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Patent number: 7960045Abstract: An aspect of the present invention relates to a magnetic recording medium comprising a coating layer on a nonmagnetic support, wherein the coating layer comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder and a binder in this order, the nonmagnetic support comprises a main component in the form of a resin obtained by mixing and/or copolymerizing a polyester and a polymer having compatibility with the polyester, has a glass transition temperature of equal to or higher than 80° C. but less than 125° C., and has a heat absorption peak, based on enthalpy relaxation, ranging from 0.5 to 2.0 J/g. Another aspect of the present invention relates to a method of manufacturing a magnetic recording medium.Type: GrantFiled: September 29, 2008Date of Patent: June 14, 2011Assignee: FUJIFILM CorporationInventors: Katsuhiko Meguro, Masatoshi Takahashi
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Publication number: 20110130538Abstract: Polymers for photoresists and monomers for incorporation into those polymers are disclosed. The polymers comprise a photoacid generator (PAG) component and at least a second component that is photolytically stable and acid-stable. The polymers may also contain a third, acid-labile component. The photoacid generator is based on N-sulfoxyimides and related moieties that contain photolabile oxygen-heteroatom and oxygen-aromatic carbon bonds.Type: ApplicationFiled: August 26, 2010Publication date: June 2, 2011Applicant: The Research Foundation of the State University of New YorkInventor: Robert L. BRAINARD
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Patent number: 7927621Abstract: A poly(thioester ester amide) copolymer and method of making and using the same are disclosed.Type: GrantFiled: June 25, 2007Date of Patent: April 19, 2011Assignee: Abbott Cardiovascular Systems Inc.Inventors: Mikael O. Trollsas, Nam D. Pham, Michael H. Ngo, Bozena Zofia Maslanka
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Publication number: 20110039999Abstract: The present invention relates to a process for the continuous production of a biodegradable polyester based on aliphatic or aliphatic and aromatic dicarboxylic acids and on aliphatic dihydroxy compounds, where a mixture composed of the aliphatic dihydroxy compounds, of the aliphatic and aromatic dicarboxylic acids, and, if appropriate, of further comonomers (component C) is mixed, without addition of a catalyst, to give a paste, or, as an alternative, the liquid esters of the dicarboxylic acids are fed into the system, as also are the dihydroxy compound and, if appropriate, further comonomers, without addition of any catalyst, and i) in a first stage, this mixture, together with the entire amount or with a portion of the catalyst, is continuously esterified or, respectively, transesterified; ii) in a second stage, the transesterification or, respectively, esterification product obtained in i) is continuously precondensed if appropriate with the remaining amount of catalyst to an intrinsic viscosity of fromType: ApplicationFiled: April 7, 2009Publication date: February 17, 2011Applicant: BASF SEInventors: Uwe Witt, Motonori Yamamoto
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Publication number: 20110027379Abstract: The invention provides biodegradable PEAs, PEURs and PEUs that are synthesized by solution polycondensation to include ?-amino acids and oligo-ethylene ether segments in the polymer backbone. The polymers can be obtained by substituting oligo-ethylene glycol (OEG) for aliphatic di-acid and diols during their fabrication. Also provided are compositions in which bioactive agents are dispersed in the polymers. The compositions biodegrade by enzymatic action to release incorporated bioactive agents and oligo-ethylene glycol segments, which are fully biodegradable at a molecular weight less than 400 Da. Due to their comparatively rapid surface enzymatic hydrolysis, the compositions can be used to deliver bioactive agents in a controlled manner within a relatively rapid delivery time, such as about 18 to 24 hours.Type: ApplicationFiled: December 4, 2008Publication date: February 3, 2011Inventors: Chih-Chang Chu, Ramaz Katsarava, Zaza D. Gomurashvili, William G. Turnell
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Publication number: 20100160595Abstract: Fluorocarbon- and urethane-(meth)acryl-containing additives and hardcoats. The hardcoats are particularly useful as a surface layer on an optical device.Type: ApplicationFiled: March 5, 2010Publication date: June 24, 2010Inventors: Thomas P. Klun, Naiyong Jing, Richard J. Pokorny, Zai-Ming Qiu, Mark J. Pellerite, William D. Coggio, Christopher B. Walker, JR.
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Patent number: 7708151Abstract: This invention relates to a polymeric membrane composition utilizing the non-hazardous compound 4-aminophenyl disulfide (“APD”), a method of making the polymeric membrane, and a process for separating components of a feedstream utilizing the polymeric membrane. More particularly, but not by way of limitation, this invention relates to utilizing the polymeric membrane composition in a process for the separation of aromatics from a hydrocarbon feedstream containing aromatics and aliphatic compounds.Type: GrantFiled: August 3, 2007Date of Patent: May 4, 2010Assignee: ExxonMobil Research and Engineering CompanyInventors: Dennis G. Peiffer, Randall D. Partridge, Walter Weissman, David C. Dalrymple, Craig Y. Sabottke
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Publication number: 20100099839Abstract: A fluorinated polyoxyalkylene glycol diamide surfactant of formula 1 B—X—COCH2O—[—CpH2pO—]n—CH2CO—X—Ra ??(1) wherein B is M or Ra, M is an ionizable hydrogen, ammonium, alkali metal, or alkaline earth metal, p is from about 2 to about 4, n is from about 5 about 43, each X is independently NR, SCH2CH2NR, SO2NRCH2CH2NR, or SO2CH2CH2NR; R is hydrogen, or a linear or branched alkyl group CbH(2b+1) wherein b is 1 to about 18, Ra is Rf(CH2CF2)d—(CgH2g)—; Rf(OCF2CF2)r—(CgH2g)—; RfOY—; Rf(CH2)h[(CF2CF2)i(CH2CH2)j]k—; Rf(CgH2g)—; or H(CcF2c)—(CgH2g)—; Y is CFHCF2O(CwH2w)—; or CF(CF3)CONH—(CgH2g)—; and each Rf is independently CcF(2c+1) wherein c is 1 to about 6.Type: ApplicationFiled: October 21, 2008Publication date: April 22, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: PETER MICHAEL MURPHY, ANILKUMAR RAGHAVANPILLAI
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Patent number: 7638590Abstract: The invention provides a novel polyester adapted for use in a charge control agent for a toner for an electrophotographic process, having a charge stability, a high charge amount, an improved dispersibility and a biodegradability, and a producing method and an application technology therefore.Type: GrantFiled: June 24, 2005Date of Patent: December 29, 2009Assignee: Canon Kabushiki KaishaInventors: Tatsuki Fukui, Tetsuya Yano, Chieko Mihara, Shinya Kozaki, Tsutomu Honma, Takashi Kenmoku, Ako Kusakari
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Method for incorporating nitrogen containing methine light absorbers in PET and compositions thereof
Patent number: 7528219Abstract: The present invention is a method for efficiently incorporating a nitrogen containing methine light absorber into a polyester resin. The method includes forming a reaction mixture comprising combining a diol component, a diacid component selected from the group consisting of dicarboxylic acids, dicarboxylic acid derivatives, and mixtures thereof, an antimony containing compound, a phosphorus containing compound, a metal containing compound, and a nitrogen containing methine light absorber. The reaction mixture is polymerized in a polycondensation reaction system. In another embodiment the light absorber is added while the reaction products of one reactor are being transferred to the next reactor in the polycondensation reaction system. The present invention is also directed articles made from the polyester resin.Type: GrantFiled: September 21, 2007Date of Patent: May 5, 2009Assignee: Eastman Chemical CompanyInventors: Max Allen Weaver, Jason Clay Pearson, Dale Milton Blakely, Frederick Leslie Colhoun -
Publication number: 20080319551Abstract: A poly(thioester ester amide) copolymer and method of making and using the same are disclosed.Type: ApplicationFiled: June 25, 2007Publication date: December 25, 2008Inventors: Mikael O. Trollsas, Nam D. Pham, Michael H. Ngo, Bozena Zofia Maslanka
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Patent number: 7465779Abstract: A novel polyhydroxyalkanoate having a reactive functional group in a molecule, and a production method thereof, etc. are provided. By utilizing the vinyl group of polyhydroxyalkanoate which contains a unit having a vinyl group on a side chain, a polyhydroxyalkanoate which contains a carboxyl group and a unit having an amide group and a sulfonic acid group in a molecule is derived.Type: GrantFiled: June 9, 2005Date of Patent: December 16, 2008Assignee: Canon Kabushiki KaishaInventors: Takashi Kenmoku, Tatsuki Fukui, Chieko Mihara, Ako Kusakari, Tetsuya Yano
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Publication number: 20080287602Abstract: The invention provides aqueous resin emulsion containing a resin obtained by reaction of a composition containing at least: at least one polyhydric alcohol having at least two hydroxyl groups, at least one polyetherpolyol having a molecular weight of 400 to 8000 g/mol, at least one monobasic carboxylic acid, and at least one polybasic carboxylic acid having at least two carboxyl groups or its anhydride, to form a resin and the resin emulsion is modified by providing basic groups. The invention further relates to a process for preparing a resin, to a resin as obtained by the process and to a coating film obtained from the resin emulsion.Type: ApplicationFiled: April 25, 2006Publication date: November 20, 2008Applicant: Ashland-Sudchemie-Kernfest GmbHInventors: Peter Kuhlmann, Reinhard Winter, Kurt Holzhauser
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Publication number: 20080255284Abstract: It is provided for a resin composition including (A) at least one polyamic acid having the structure represented by the following formula (1): wherein R1 is independently an alkyl group having 1 to 3 carbon atoms or a cyano group; a is independently an integer of 0 to 4; R is a tetravalent organic group; n is an integer of 1 to 4; and m is an integer of 1 to 100,000, and (E) an organic solvent.Type: ApplicationFiled: March 28, 2008Publication date: October 16, 2008Applicants: Tokyo Institute of Technology, JSR CORPORATIONInventors: Mitsuru Ueda, Shinji Ando, Jin-gang Liu, Yuzi Shibasaki, Yasuhiro Nakamura, Shuichi Sugawara, Miwa Ariyuki, Yuichi Eriyama, Keisuke Kuriyama, Hideaki Takase
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Publication number: 20080214774Abstract: Thiourethane prepolymer compositions, thiourethane polymer compositions, methods of making the compositions, and methods of using the thiourethane polymer compositions are provided. The thiourethane polymer composition can be produced by contacting a thiol ester composition and an isocyanate composition to produce a prepolymer composition and then curing the prepolymer composition to produce the thiourethane polymer composition. The prepolymer composition can also include a property modifying agent. In some embodiments, the thiol ester compositions include thiol esters, hydroxy thiol esters, and cross-linked thiol esters.Type: ApplicationFiled: March 1, 2007Publication date: September 4, 2008Inventors: Chad W. Brown, Jim D. Byers, Mitchell D. Refvik
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Publication number: 20080035573Abstract: This invention relates to a polymeric membrane composition utilizing the non-hazardous compound 4-aminophenyl disulfide (“APD”), a method of making the polymeric membrane, and a process for separating components of a feedstream utilizing the polymeric membrane. More particularly, but not by way of limitation, this invention relates to utilizing the polymeric membrane composition in a process for the separation of aromatics from a hydrocarbon feedstream containing aromatics and aliphatic compounds.Type: ApplicationFiled: August 3, 2007Publication date: February 14, 2008Inventors: Dennis G. Peiffer, Randall D. Partridge, Walter Weissman, David C. Dalrymple, Craig Y. Sabottke
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Method for incorporating nitrogen containing methine light absorbers in pet and compositions thereof
Patent number: 7282555Abstract: The present invention is a method for efficiently incorporating a nitrogen containing methine light absorber into a polyester resin. The method includes forming a reaction mixture comprising combining a diol component, a diacid component selected from the group consisting of dicarboxylic acids, dicarboxylic acid derivatives, and mixtures thereof, an antimony containing compound, a phosphorus containing compound, a metal containing compound, and a nitrogen containing methine light absorber. The reaction mixture is polymerized in a polycondensation reaction system. In another embodiment the light absorber is added while the reaction products of one reactor are being transferred to the next reactor in the polycondensation reaction system. The present invention is also directed articles made from the polyester resin.Type: GrantFiled: May 27, 2004Date of Patent: October 16, 2007Assignee: Eastman Chemical CompanyInventors: Max Allen Weaver, Jason Clay Pearson, Dale Milton Blakely, Frederick Leslie Colhoun -
Patent number: 7253248Abstract: The present invention is directed to synthetic, biodegradable, biocompatible polymers that are the reaction product of an ?,?-unsaturated polybasic acid or derivative thereof and a monoglyceride, and which further contain pended thereto a functional agent, and to medical devices and compositions containing such polymers.Type: GrantFiled: October 11, 2004Date of Patent: August 7, 2007Assignee: Ethicon, Inc.Inventor: Aruna Nathan
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Patent number: 7220816Abstract: Coatings for an implantable medical devices such as stents and methods of fabricating thereof are disclosed. The coatings comprise a biologically absorbable poly(ester amide), which is a polymeric product of a reaction between a diol-diamine and a dicarboxylic acid.Type: GrantFiled: December 16, 2003Date of Patent: May 22, 2007Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Stephen D. Pacetti, Jessica R. DesNoyer
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Patent number: 7105260Abstract: A binder resin for a toner comprises a polyester component having a specific structure which is not soluble in tetrahydrofuran, and a polyester component having a specific branched structure which is soluble in tetrahydrofuran. The binder resin can provide a toner, which is superior in low-temperature fixation and offset resistance and can be used in high speed printing in response to the recent market demands owing to its specific structure.Type: GrantFiled: May 30, 2003Date of Patent: September 12, 2006Assignee: Mitsui Chemicals, Inc.Inventors: Tomoya Terauchi, Hirotaka Uosaki, Hiroshi Matsuoka, Yuji Emura, Hiroyuki Takei, Hironobu Hashimoto
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Patent number: 7084213Abstract: A polymer composition comprising chains of at least one aromatic polymer or a mixture thereof together with at least one chain linking component wherein the at least one aromatic polymer comprises polymer chains of number average molecular weight (Mn) in a first range and characterised by a polymer flow temperature, and having at least one reactive end group, and wherein the at least one chain linking component comprises at least two linking sites, characterised in that a plurality of the polymer chain end groups are adapted to react with the linking sites at chain linking temperature in excess of the polymer flow temperature to form linked polymer chains of number average molecular weight (Mn) in a second range which is in excess of the first range, substantially thermoplastic in nature; process for the preparation thereof; prepreg, composite or shaped product obtained therewith and the use thereof.Type: GrantFiled: August 20, 2001Date of Patent: August 1, 2006Assignee: Cytec Technology Crop.Inventors: Patrick Terence McGrail, Jeffrey Thomas Carter
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Patent number: 7052766Abstract: The present invention is directed to a novel reactive protective colloid system suitable for stabilizing an electrophoretic display in which a halogenated solvent, particularly a fluorinated, more particularly a perfluorinated, solvent, or a mixture thereof, is used as the dielectric solvent.Type: GrantFiled: December 31, 2002Date of Patent: May 30, 2006Assignee: SiPix Imaging, Inc.Inventors: Hongmei Zang, Huiyong Paul Chen, Mahmoud-Zohdi Armoush, Denis Leroux, Rongchi Yu, Rong-Chang Liang
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Patent number: 7019045Abstract: An object of the present invention is to provide a material which resolves the drawbacks associated with polyimide polymers, and yet retains the advantages offered by conventional polyimide polymers. An amino group containing phenol derivative of the present invention is represented by a general formula (1) show below, and the present invention also provides a polyimide precursor produced using such an amino group containing phenol derivative. (wherein, R1, R2 and R3, which may be the same or different, each represent an alkyl group of 1 to 9 carbon atoms, an alkoxy group of 1 to 10 carbon atoms, a COOR group (in which R represents an alkyl group of 1 to 6 carbon atoms) or a hydrogen atom; R4 and R5, which may be the same or different, each represent an alkyl group of 1 to 9 carbon atoms or a hydrogen atom; X represents —O—, —S—, —SO2—, —C(CH3)2—, —CH2—, —C(CH3)(C2H5)—, or —C(CF3)2—; and n represents an integer of 1 or greater).Type: GrantFiled: May 9, 2005Date of Patent: March 28, 2006Assignee: Gun Ei Chemical Industry Co., Ltd.Inventors: Takeshi Tsuihiji, Michiyasu Yamazaki
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Patent number: 6998462Abstract: Disclosed is a process that comprises contacting, in the presence of an esterification or transesterification or polycondensation catalyst composition, a toner, and a phosphorus compound, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization.Type: GrantFiled: June 11, 2003Date of Patent: February 14, 2006Assignee: E.I. du Pont de Nemours and CompanyInventors: Jiwen F. Duan, Donald E. Putzig
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Patent number: 6967234Abstract: The present invention is directed to biodegradable, biocompatible polymers that are the reaction product of a polybasic acid or derivative thereof, a monoglyceride and a lactone monomer, as well as medical devices and compositions containing such polymers.Type: GrantFiled: December 18, 2002Date of Patent: November 22, 2005Assignee: Ethicon, Inc.Inventor: Aruna Nathan
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Patent number: 6960642Abstract: Fiber, fabric, film, molded or blown article comprising a water- and oil-repellent composition comprising a melt blend of components (a) and (b) in which: (a) comprises a repellency-imparting, fluorochemical composition comprising at least one fluorine-containing aromatic ester oligomer comprising (1) at least two repeat units derived or derivable from the reaction of at least one dicarboxylic acid (or a derivative thereof) and at least one polyol, with the proviso that either the dicarboxylic acid (or derivative) or the polyol (or both) is aromatic or heteroaromatic, and (2) fluorochemical endgroups derived or derivable from the reaction of (i) the dicarboxylic acid (or derivative) and at least one fluorine-containing monoalcohol, or (ii) the polyol and at least one fluorine-containing monocarboxylic acid; and (b) comprises a treatable substrate material; with the proviso that, when the treatable substrate material comprises a mixture of at least two polymers, the mixture is non-stratifying.Type: GrantFiled: January 9, 2003Date of Patent: November 1, 2005Assignee: 3M Innovative Properties CompanyInventors: Chetan P. Jariwala, Thomas P. Klun, Jeffrey G. Linert, Richard M. Stern
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Patent number: 6908957Abstract: Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring.Type: GrantFiled: August 3, 2001Date of Patent: June 21, 2005Assignee: National Starch and Chemical Investment Holding CorporationInventors: Osama M. Musa, Donald E. Herr, Nikola A. Nikolic
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Patent number: 6872799Abstract: The present invention is directed to synthetic, biodegradable, biocompatible polymers that are the reaction product of an ?,?-unsaturated polybasic acid or derivative thereof and a monoglyceride, and which further contain pended thereto a functional agent, and to medical devices and compositions containing such polymers.Type: GrantFiled: December 18, 2002Date of Patent: March 29, 2005Assignee: Ethicon, Inc.Inventor: Aruna Nathan
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Patent number: 6861468Abstract: A polyester resin composition containing a thermoplastic polyester resin; a polyester copolymer containing a monomer having at least one of an amino group, an imino group, an amido group, and a sulfonic acid group; a layered silicate; and an antioxidant. The monomer having at least one of an amino group, an imino group, an amido group, and a sulfonic acid group is contained in the polyester copolymer in an amount of 5 to 15 mol %. The monomer having at least one of an amino group, an imino group, an amido group, and a sulfonic acid group is contained in the polyester resin composition in an amount of 1 to 5 mol % based on a total polyester content of the polyester resin composition. The antioxidant is contained in the polyester resin composition in an amount of 0.01% to 1.0% by mass.Type: GrantFiled: September 26, 2003Date of Patent: March 1, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuya Yoshida, Yukio Shirokura, Tadahiro Kegasawa, Masami Okamoto
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Patent number: 6846429Abstract: This invention provides a transparent, paramagnetic polymer composition in which a polymer is completed with sufficient rare earth ions, particularly ions selected from ions in the group of elements 64-69, to provide a polymer with a magnetic mass susceptibility greater than 20×10?6 emu/g measured at 298° K. This invention provides optically responsive devices that employ these transparent, paramagnetic polymers as an element that is responsive to a magnetic field and a means for providing magnetic field. This invention provides transparent labels or markings employing these transparent, paramagnetic polymers.Type: GrantFiled: January 16, 2002Date of Patent: January 25, 2005Assignee: E. I. du Pont de Nemours and CompanyInventor: David M. Dean