From Organic Reactant Containing A -c(=s)-group Patents (Class 528/390)
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Patent number: 9217062Abstract: Disclosed herein are the compounds shown below. Also disclosed are methods of making the compounds. R1=—O—; R2=any alkyl chain; R3=—CH3, —CN, —COOCH3, -tetrazole, -imidazole, or -triazole; R4=—H or —R5; R5=—H, -halogen, —C?CH, or —C?C—; n is a positive integer; and m is a positive integer.Type: GrantFiled: August 1, 2013Date of Patent: December 22, 2015Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Holly L. Ricks-Laskoski, Arthur W Snow, Matthew Laskoski, Stephen M. Deese, Brian L. Chaloux
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Publication number: 20140005354Abstract: Provided are a sulfur-modified chloroprene rubber improved in heat resistance, a molded article prepared by using the sulfur-modified chloroprene rubber and a method for producing the sulfur-modified chloroprene rubber. A sulfur-modified chloroprene rubber comprising, as the principal component, a sulfur-modified chloroprene polymer having sulfur atoms in the molecule which is obtained by emulsion polymerization of chloroprene alone or a mixture of chloroprene and one or more other monomers in the presence of sulfur, wherein the content of the sulfur that is bound to the sulfur-modified chloroprene polymer is 0.2 to 0.6 mass % with respect to the total amount of the rubber and the ratio of the amount of the bound sulfur (mass %) to the total amount of the sulfur contained in the entire rubber (mass %) (bound sulfur content/total sulfur content) is 0.28 to 0.5.Type: ApplicationFiled: May 16, 2012Publication date: January 2, 2014Applicant: DENKI KAGAKU KOGYO KABUSHIKI KAISHAInventors: Takashi Sunada, Naoki Kobayashi, Yasushi Abe
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Publication number: 20130190473Abstract: Disclosed is a toner for electrostatic image development that has low-temperature fixability and hot offset resistance and also has document offset resistance. The toner contains a hyperbranched polymer which is a homopolymer formed using an inimer having, in its molecule, a polymerizable functional group and a polymerization initiating group or is a copolymer formed using the inimer and a vinyl-based monomer. The hyperbranched polymer is preferably a terminal-modified hyperbranched polymer and is preferably obtained by a living radical polymerization process.Type: ApplicationFiled: January 18, 2013Publication date: July 25, 2013Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Hiroshi NAGASAWA, Kouji SUGAMA, Hiroyuki KONNO, Takaki KAWAMURA
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Patent number: 8338547Abstract: To provide a structure material having excellent mechanical characteristics and a functional material having excellent regularity, provided are a polymer alloy which is composed of at least two components of thermoplastic resins and of which the structure can be controlled finely and evenly dispersed and a production method of the polymer alloy. With respect to a polymer alloy composed of at least two or more components of thermoplastic resins, a precursor (A) of at least one thermoplastic resin among the thermoplastic resin components composing the polymer alloy is chemically reacted in the co-presence of the remaining thermoplastic resin component (B1) and/or a precursor (B2) of the thermoplastic resin component to induce spinodal decomposition, so that it is made possible to obtain a polymer alloy having excellent regularity and of which the structure is finely controllable and the structure is evenly dispersed.Type: GrantFiled: September 18, 2008Date of Patent: December 25, 2012Assignee: Toray Industries, Inc.Inventors: Hiroshi Takahashi, Sadayuki Kobayashi
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Patent number: 8309623Abstract: The disclosed is a biodegradable copolymer, an amphiphilic diblock copolymer, composed of a hydrophilic segment and a hydrophobic segment. The hydrophilic segment is an endcapped PEG or derivatives thereof. The hydrophilic segment is a random polymer polymerized of lactone or cyclic C3-C6 molecule and lactic acid/glycolic acid. There is no coupling agent between the hydrophilic and hydrophobic segments, and the biodegradable copolymer is formed by one-pot ring-opening polymerization. The biodegradable copolymer can be dissolved in water to form a thermosensitive material having a phase transfer temperature of 25 to 50° C., thereby being applied to biological activity factor delivery, tissue engineering, cell culture and biological glue.Type: GrantFiled: November 23, 2010Date of Patent: November 13, 2012Assignee: Industrial Technology Research InstituteInventors: Ya-Jen Yu, Chin-Fu Chen, Tsai-Yu Lin, Shao-Jen Yeh, Shian-Yih Wang, Po-Liang Lai
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Patent number: 8182830Abstract: Described herein are hydrogen sulfide (H2S) generating polymers and polymer systems suitable for coating or forming medical devices and methods for making and using the same. More specifically, described are H2S generating polymers comprising at least one thioamide group. The H2S generating polymers can provide controlled site-specific release of H2S once implanted at or within the target surgical site by hydrolysis of the thioamide group in physiological media. The H2S generating polymers can be coated onto a medical device, formed into a medical device or combined with one or more other polymers to form a polymer system. Also described are methods of treating restenosis and inflammation and promoting vasodilation utilizing such medical devices.Type: GrantFiled: January 5, 2010Date of Patent: May 22, 2012Assignee: Medtronic Vascular, Inc.Inventors: Mingfei Chen, Christopher Storment, David Shumaker
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Patent number: 8133960Abstract: Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a random copolymer comprising hydrophilic units and hydrophobic units, wherein the random copolymer has at least one thio carbonyl thio fragment of a reversible addition fragmentation chain transfer (“RAFT”) agent are disclosed.Type: GrantFiled: June 16, 2009Date of Patent: March 13, 2012Assignee: Bausch & Lomb IncorporatedInventors: Jeffrey G. Linhardt, Joseph A. McGee, Ivan M. Nunez
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Patent number: 8066864Abstract: The invention relates to polymers which comprise at least partially cross-linked main chains constructed from repeat units of the general formula I and possibly repeat units of the general formula II and also possibly repeat units comprising five- or six-membered aza aromatics or nitrogen-containing heterocycles. Polymers of this type are used as additive in electroplating baths since these enable a better layer thickness distribution of the electroplated layer.Type: GrantFiled: December 15, 2006Date of Patent: November 29, 2011Assignee: Coventya GmbHInventors: Alexander Jimenez, Thorsten Kühler
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Publication number: 20110278175Abstract: A monomer having an aniline moiety linked through nitrogen to a dithiocarbamate moiety, e.g. N—(N1,N1-diethyldithiocarbamoylethylamidoethyl)-aniline: Ph-NH—CH2—CH2—NH—CO—CH2—CH2—S—C(?S)—NEt2 can be oxidatively polymerised to produce a polyaniline bearing dithiocarbamate moieties. This can be used as an iniferter, to graft addition polymers onto it.Type: ApplicationFiled: May 12, 2011Publication date: November 17, 2011Inventors: Michael James WHITCOMBE, Sergey Anatolievich Piletsky, Dhana Lakshmi, Petya Krasimirova Ivanova-Mitseva
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Publication number: 20110165216Abstract: Described herein are hydrogen sulfide (H2S) generating polymers and polymer systems suitable for coating or forming medical devices and methods for making and using the same. More specifically, described are H2S generating polymers comprising at least one thioamide group. The H2S generating polymers can provide controlled site-specific release of H2S once implanted at or within the target surgical site by hydrolysis of the thioamide group in physiological media. The H2S generating polymers can be coated onto a medical device, formed into a medical device or combined with one or more other polymers to form a polymer system. Also described are methods of treating restenosis and inflammation and promoting vasodilation utilizing such medical devices.Type: ApplicationFiled: January 5, 2010Publication date: July 7, 2011Applicant: Medtronic Vascular, Inc.Inventors: Mingfei Chen, Christopher Storment, David Shumaker
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Patent number: 7872093Abstract: A process for producing a polythiourethane resin which comprises (A) a step of synthesizing a polythiol oligomer having disulfide bond by reaction of a polythiol compound having a functionality of two or greater and sulfur and (B) a step of bringing the polythiol oligomer obtained in step (A) and a compound having poly(thio)isocyanate groups into reaction with each other, wherein step (A) is conducted in the absence of solvents using no catalysts or a catalyst substantially inert to the compound having poly(thio)isocyanate groups. A polythiol oligomer exhibiting a greater refractive index than that of the polythiol compound having a functionality of two or greater used as the starting material is produced at a low cost, and a process for producing a practically useful polythiourethane resin exhibiting a stable great refractive index and a great Abbe number is provided.Type: GrantFiled: August 31, 2007Date of Patent: January 18, 2011Assignee: Hoya CorporationInventor: Masahisa Kousaka
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Publication number: 20100317817Abstract: Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a random copolymer comprising hydrophilic units and hydrophobic units, wherein the random copolymer has at least one thio carbonyl thio fragment of a reversible addition fragmentation chain transfer (“RAFT”) agent are disclosed.Type: ApplicationFiled: June 16, 2009Publication date: December 16, 2010Applicant: Bausch & Lomb IncorporatedInventors: Jeffrey G. Linhardt, Joseph A. McGee, Ivan M. Nunez
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Publication number: 20100315588Abstract: Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a hydrophilic polymer comprising one or more hydrophilic units and one or more thio carbonyl thio fragments of a reversible addition fragmentation chain transfer (“RAFT”) agent; and (b) one or more biomedical device-forming monomers are disclosed.Type: ApplicationFiled: June 16, 2009Publication date: December 16, 2010Applicant: Bausch & Lomb IncorporatedInventors: Ivan M. Nunez, Jeffrey G. Linhardt, Joseph A. McGee, Jennifer Hunt, Michele Alton, Devon A. Shipp, Jay F. Kunzler, Daniel M. Ammon, JR.
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Patent number: 7851582Abstract: Dithiocarbonate derivatives are disclosed, along with a process for preparing the same. The dithiocarbonate compounds can be utilized as initiators, chain transfer agents and/or terminators in controlled free radical polymerizations. The dithiocarbonates can be used to produce polymers having narrow molecular weight distribution. Advantageously, the compounds of the present invention can also introduce functional groups into the resulting polymers. The dithiocarbonate compounds have low odor and are substantially colorless.Type: GrantFiled: February 25, 2008Date of Patent: December 14, 2010Assignee: Lubrizol Advanced Materials, Inc.Inventor: John Ta-Yuan Lai
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Publication number: 20100291116Abstract: Microparticle comprising a cross-linked polymer comprising (a) a cross-linker comprising two or more radically polymerizable groups, preferably selected from the group consisting of alkenes, sulfhydryl (SH), thioic, unsaturated esters, unsaturated urethanes, unsaturated ethers, and unsaturated amides; (b) a monofunctional reactive diluent comprising maximum one unsaturated C—C bond represented by the formula R0—C(R1)?CHR2 Formula (I) wherein —R0 is chosen depending on the structure of a selected active agent (c) to be loaded into the microparticle and is chosen to have a structure that when combined with the other components of the microparticle provides a higher affinity of the selected active agent (c) for the microparticle; —each R1 is chosen from hydrogen and substituted and unsubstituted, aliphatic, cycloaliphatic and aromatic hydrocarbon groups which groups optionally contain one or more moieties selected from the group of ester moieties, ether moieties, thioester moieties, thioether moieties, carbamateType: ApplicationFiled: September 26, 2008Publication date: November 18, 2010Applicant: DSM IP ASSETS B.V.Inventors: Aylvin Jorge Angelo Athanasius Dias, Bartholomeus Johannes Margretha Plum, Audrey Petit, Tristan Handels
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Patent number: 7795369Abstract: There is provided an anti-reflective coating forming composition for lithography comprising a reaction product obtained by reacting a sulfur-containing compound having thiourea structure with a nitrogen-containing compound having two or more nitrogen atoms substituted with a hydroxymethyl group or an alkoxymethyl group in the presence of an acid catalyst and a solvent. The anti-reflective coating obtained from the composition has a high preventive effect for reflected light, causes no intermixing with photoresists, has a higher dry etching rate compared with photoresists and can use in lithography process for manufacturing semiconductor device.Type: GrantFiled: September 27, 2005Date of Patent: September 14, 2010Assignee: Nissan Chemical Industries, Ltd.Inventors: Tomoyuki Enomoto, Yoshiomi Hiroi, Keisuke Nakayama
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Patent number: 7781050Abstract: Provided are an ultrathin polymer film formed by homopolymerization or copolymerization of a cucurbituril derivative with an organic monomer and a method of forming the same. The ultrathin polymer film has a thickness of 10 nm or less, and can retain its film shape even after being separated from a substrate.Type: GrantFiled: April 21, 2005Date of Patent: August 24, 2010Assignee: Postech Academy-Industry FoundationInventors: Kimoon Kim, Woo Sung Jeon, Dongwoo Kim, Dong Hyun Oh, Sang Yong Jon
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Publication number: 20100160574Abstract: The invention provides a process for synthesising functionalised chain transfer polymers of Formula (1) or Formula (2) using thiocarbonyl thio compounds as chain transfer agents. Why R1 is a moiety comprising a functional group; Q is obtained from an olefinically unsaturated monomer; R? is selected from the group consisting of alkyl, substituted alkyl, alkoxy, substituted alkoxy, an aromatic saturated or unsaturated carbocyclic or heterocyclic ring, optionally substituted with one or more substituents, amino alkyl, cyanoalkyl, hydroxylalkyl, saturated and unsaturated amido; an organometallic species, a polymer chain and any of the foregoing substituted with one or more CN or OH groups; q=an integer of at least 2; p=an integer of at least 1. Chain transfer agents and polymers produced by the method are also provided.Type: ApplicationFiled: December 2, 2009Publication date: June 24, 2010Applicant: The University of LeedsInventor: Sebastien Perrier
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Patent number: 7666978Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).Type: GrantFiled: February 18, 2009Date of Patent: February 23, 2010Assignees: IMEC, Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
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Patent number: 7511116Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).Type: GrantFiled: July 18, 2007Date of Patent: March 31, 2009Assignees: Interuniversitair Microelektronica Centrum (IMEC), Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
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Patent number: 7446164Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerisation to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents. The precursor polymer with structural units of formula (II) is thermally converted to the conjugated polymer with structural formula (III).Type: GrantFiled: July 18, 2007Date of Patent: November 4, 2008Assignees: Interuniversitair Microelektronica Centrum (IMEC), Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
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Publication number: 20080214773Abstract: Dithiocarbonate derivatives are disclosed, along with a process for preparing the same. The dithiocarbonate compounds can be utilized as initators, chain transfer agents and/or terminators in controlled free radical polymerizations. The dithiocarbonates can be used to produce polymers having narrow molecular weight distribution. Advantageously, the compounds of the present invention can also introduce functional groups into the resulting polymers. The dithiocarbonate compounds have low odor and are substantially colorless.Type: ApplicationFiled: February 25, 2008Publication date: September 4, 2008Inventor: John Ta-Yuan Lai
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Patent number: 7396901Abstract: The invention concerns a method for preparing polymers having at least a thiol function, comprising pyrolysis of at least a polymer having at least a function of formula (I), wherein: R1, R2, R3 and R4 are such as defined in the descriptionType: GrantFiled: May 3, 2002Date of Patent: July 8, 2008Assignee: Rhodia ChimieInventors: Zofia Agnieszka Wilczewska, Mathias Destarac, Hervé Adam, Samir Zard, Chakib Kalai, Gérard Mignani
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Publication number: 20080131687Abstract: Process for applying integrated pretreatment layers to metallic surfaces, particularly the surfaces of coil metals, by treatment with a composition comprising at least one binder, crosslinker, a finely divided inorganic filler, and compounds containing at least two thioamide groups or containing one thioamide group and at least one functional group. Integrated pretreatment layer obtainable by the process.Type: ApplicationFiled: January 24, 2006Publication date: June 5, 2008Applicant: BASF AktiengesellschaftInventors: Monica Fernandez Gonzalez, Markus Hickl, Cordula Mock-Knoblauch, Manfred Essig, Ingolf Hennig, Alexander Gothlich
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Publication number: 20080114150Abstract: Catalytic processes have been developed for direct chemical conversion of aqueous carbonyl type compounds including amides, sulfoxides and related carbonyl type compounds to methyl ether polymers, substituted methyl ether polymers and/or substituted methyl ether ladder polymers. Amide and sulfoxide carbonyl type compounds including DMF, DMAc, MBAc, MEHx, amides prepared from an organic acid including serine, arginine, histidine and related amino acids, reacted with amines including monoethanolamine, butylamines, methylpropylamines and related amines and DMSO have been polymerized in an aqueous environment to methyl ether polymers, substituted methyl ether polymers or substituted methyl ether ladder polymers by this catalytic process. The catalysts are based on molecular strings of mono-, di- and tri-valent transition metal compounds.Type: ApplicationFiled: November 13, 2006Publication date: May 15, 2008Applicant: Carter TechnologiesInventor: M. K. Carter
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Patent number: 7259228Abstract: A technique is described for the preparation of polymers according to a process in which the starting compound of formula (I) is polymerized in the presence of a base in an organic solvent. No end chain controlling agents are required during the polymerization to obtain soluble precursor polymers. The precursor polymer such obtained comprises structural units of the formula (II). In a next step, the precursor polymer (II) is subjected to a conversion reaction towards a soluble or insoluble conjugated polymer by thermal treatment. The arylene or heteroarylene polymer comprises structural units of the formula III. In this process the dithiocarbamate group acts as a leaving group and permits the formation of a precursor polymer of structural formula (II), which has an average molecular weight from 5000 to 1000000 Dalton and is soluble in common organic solvents.Type: GrantFiled: October 21, 2004Date of Patent: August 21, 2007Assignees: Interuniversitair Microelektronica Centrum (IMEC), Limburgs Universitair CentrumInventors: Dirk Vanderzande, Laurence Lutsen, Anja Henckens, Kristof Colladet
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Patent number: 7214762Abstract: The present invention provides a new redox-active polymer capable of an adequate redox reaction even at low temperature and effectively usable as a high-capacity, high-energy density battery, a large-area electrochromic element, or a biochemical sensor using a microelectrode. This redox-active polymer is of being prepared by polymerizing an aromatic or heterocyclic compound having two or more thiourea groups with an aromatic or heterocyclic compound having two or more isothiocyanate groups. For example, The redox-active polymer may be of being prepared by polymerizing N,N?-1,4-phenylene-bis-thiourea with phenylene-1,4-diisothiocyanate. The redox-active polymer is suitable as an electrode material, particularly a cathode for lithium secondary batteries.Type: GrantFiled: November 21, 2000Date of Patent: May 8, 2007Assignee: Japan Science and Technology AgencyInventors: Tadaoki Mitani, Yoshihiro Iwasa, Hiroshi Uemachi
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Patent number: 7115705Abstract: A polythiourethane is produced by polymerizing a compound represented by formula (I) in the presence of a compound represented by formula (II) in which R1 represents a methyl group;Type: GrantFiled: November 5, 2004Date of Patent: October 3, 2006Assignee: JSR CorporationInventors: Atsushi Nagai, Bungo Ochiai, Takeshi Endo
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Patent number: 7109276Abstract: The invention concerns a method for preparing a polymer, comprising a step which consists in contacting: (A) at least a living organic polymer having at its chain end a dithiocarbonylated or dithiophosphorylated function capable of being reactivated; (B) at least a source of free radicals; and (C) at least an organic compound bearing a labile hydrogen atom, whereby the dithiocarbonylated or dithiophosphorylated function present on said living organic polymer is substituted by a hydrogen atom.Type: GrantFiled: May 3, 2002Date of Patent: September 19, 2006Assignee: Rhodia ChimieInventors: Zofia Agnieszka Wilczewska, Mathias Destarac, Samir Zard, Chakib Kalai, Gérard Mignani, Hervé Adam
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Patent number: 7045241Abstract: A monomer to produce polybenzimidazole is dissolved in polyphosphoric acid. For example, polysulfated phenylene sulfonic acid (acidic group-possessing polymer) is further dissolved in this solution. In this procedure, the acidic group-possessing polymer and the monomer are adsorbed to one another in accordance with the acid-base interaction. When the monomer is polymerized, for example, by means of dehydration polymerization in this state, then polybenzimidazole is synthesized, and the polybenzimidazole and the acidic group-possessing polymer are compatibilized with each other to produce a compatibilized polymer. When the compatibilized polymer is deposited as a solid, and the solid is separated from polyphosphoric acid, then the compatibilized polymer is obtained. A proton conductive solid polymer electrolyte as a final product is manufactured by forming the compatibilized polymer to have a predetermined shape.Type: GrantFiled: July 18, 2003Date of Patent: May 16, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Akita, Teruaki Komiya
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Patent number: 7008571Abstract: A poly(thio)ester (co)polymer which comprises a repeating structural unit represented by the formula (1-A) as an essential structural unit: [wherein R11 is a divalent aliphatic hydrocarbon group which may contain at least one sulfur atom in a sulfide group; R12 is a mono- or poly-cyclic aliphatic or aromatic dicarboxylic acid residue; and X11 and X12 are each independently an oxygen atom or sulfur atom, and when X11 and X12 are the oxygen atoms, R11 is a divalent aliphatic hydrocarbon group containing at least one sulfur atom in the sulfide group]; and an optical component obtainable by molding the poly(thio)ester (co)polymer. The poly(thio)ester (co)polymer is excellent in transparency and optical characteristics (e.g., a higher refractive index, higher Abbe number, and lower birefringence), and has also good mechanical characteristics and thermal characteristics, and further is excellent in melt fluidity and injection moldability.Type: GrantFiled: March 11, 2002Date of Patent: March 7, 2006Assignee: Mitsui Chemicals, Inc.Inventors: Chojiro Higuchi, Atsuo Otsuji, Kenichi Sugimoto, Mitsuo Nakamura, Masatoshi Takagi, Yasuhiro Nukii, Koju Okazaki
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Patent number: 6891017Abstract: The present invention relates to room temperature or thermally polymerizable/curable episulfide based compositions for making polymerized/cured episulfide based resins, and in particular episulfide based compositions which can be fastly polymerized/cured, as well as to a room temperature or thermal polymerization process for making such episulfide based resins.Type: GrantFiled: June 29, 2001Date of Patent: May 10, 2005Assignee: Essilor International Compagnie General D'OptiqueInventors: Peiqi Jiang, Fadi O. Adileh, Yassin Yusef Turshani
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Publication number: 20040132961Abstract: The invention concerns a method for preparing polymers having at least a thiol function, comprising pyrolysis of at least a polymer having at least a function of formula (I), wherein: R1, R2, R3 and R4 are such as defined in the description.Type: ApplicationFiled: November 3, 2003Publication date: July 8, 2004Inventors: Zofia Agnieszka Wilczewska, Mathias Destarac, Herve Adam, Samir Zard, Chakib Kalai, Gerard Mignani
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Patent number: 6646029Abstract: A vulcanizable composition comprising a sulfur vulcanizable rubber, a sulfur vulcanizing agent, an accelerating agent selected from the group consisting of non-thiazole sulfenamide accelerators in an amount effective to not substantially inhibit vulcanization and an amount effective to improve the hardness stabilization of said rubber upon vulcanization of a hardness stabilization agent comprising a pyrimidine derivative. A method of improving the hardness stabilization of a composition comprising a sulfur vulcanizable rubber by adding to said composition the accelerators and pyrimidine derivative.Type: GrantFiled: March 21, 2001Date of Patent: November 11, 2003Assignee: Flexsys America L.P.Inventors: Horng-Jau Lin, Rabindra Nath Datta, Otto William Maender
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Patent number: 6639046Abstract: The present invention relates to a composition comprising: a compound comprising two or more olefinically unsaturated groups comprising at least on electron-withdrawing functionality linked to a carbon atom of the unsaturated bond; a compound comprising at least two mercapto-functional groups; and a catalyst comprising at least one, optionally blocked, NH-group. The invention further relates to a method for the application of the composition and to the use of the composition as a coating composition or an adhesive.Type: GrantFiled: February 5, 2002Date of Patent: October 28, 2003Assignee: Akzo Nobel N.V.Inventor: Joseph Theodorus Maria Van Dijk
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Patent number: 6465604Abstract: The invention comprises a vulcanizable composition comprising a sulfur vulcanizable rubber, a sulfur vulcanizing agent, an accelerating agent in an amount effective to accelerate vulcanization and sufficient to not substantially inhibit vulcanization, and an amount effective to improve the hardness stabilization of said rubber upon vulcanization of a pyrimidine derivative. The invention also comprises a method of improving the hardness stabilization of a composition comprising a sulfur vulcanizable rubber by adding the above accelerating agent and pyrimidine derivative to the composition.Type: GrantFiled: March 21, 2001Date of Patent: October 15, 2002Assignee: Flexsys America L.P.Inventors: Horng-Jau Lin, Otto William Maender
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Publication number: 20010034428Abstract: The invention relates to a gelling aqueous composition comprising block copolymers containing at least one water-soluble block and at least one block predominantly hydrophobic in nature, and forming a viscoelastic gel.Type: ApplicationFiled: February 20, 2001Publication date: October 25, 2001Inventors: Mathias Destarac, Mathieu Joanicot, Roland Reeb
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Patent number: 6124382Abstract: The invention concerns the use as thermothickeners of multi-block copolymers of general formula (I) or (II): ##STR1## wherein E designates a polyoxyalkylene sequence; A designates a water-soluble polymer sequence; X is a sulphur or oxygen atom; Y is an oxygen atom or an --N--R' group, R' being a linear or branched alkyl; R is a linear or branched alkyl, aralky or alkylaryl group; and n is such that the molecular mass of the multi-block copolymers Mp is greater than 250,000 g/mol.Type: GrantFiled: September 8, 1998Date of Patent: September 26, 2000Assignee: Rhodia ChimieInventors: Pascale Corpart, Herve Adam, Dominique Charmot
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Patent number: 6022930Abstract: This invention relates to the process for the preparation of macromonomers with more than one polycondensable functional groups with equal reactvity, which comprises reacting a carboxyl or hydroxyl terminated prepolymers, with an organic compound containing two or more isocynnate reactive functional groups, in the presence of a dehydrating agent and a non-reactive solvent at ambient temperatures, separating the product from the reaction mixture by conventional means.Type: GrantFiled: August 28, 1998Date of Patent: February 8, 2000Assignee: Council of Scientific & Industrial ResearchInventors: Lalgudi Srinivasan Ramanathan, Swaminathan Sivaram
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Patent number: 5989627Abstract: The specification describes processes for synthesizing vinyl ether functionalized oligomers or polymers, and methods for coating optical fibers with formulations containing these oligomers or polymers. Optical fibers coated with these formulations can be highly transparent to radiation used to write optical gratings in the optical fibers.Type: GrantFiled: September 28, 1998Date of Patent: November 23, 1999Assignee: Lucent Technologies Inc.Inventors: Lee Landis Blyler, Jr., Mark Anthony Paczkowski, Debra Ann Simoff, Ulrike Varlemann, Nanze Patrick Wang
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Patent number: 5959071Abstract: A polythioether has the formulaR.sup.1 --?--R.sup.2 --S--CH(CH.sub.3)--S--!.sub.n --R.sup.2 --R.sup.1whereinR.sup.1 denotes a thiol group, a hydroxyl group, an unsubstituted amine group, a monoalkyl-substituted amine group, a monovalent radical substituted with at least one hydroxyl group, unsubstituted amine group or monoalkyl-substituted amine group, or a group that is non-reactive in the presence of an acid catalyst,R.sup.2 denotes a divalent radical, andn is an integer from 1 to 60.The polythioether is a liquid at room temperature and pressure.Type: GrantFiled: March 31, 1998Date of Patent: September 28, 1999Assignee: Courtaulds Aerospace, Inc.Inventors: Suzanna Elaine DeMoss, Jonathan Doherty Zook
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Patent number: 5929203Abstract: A process is provided for producing a high molecular weight poly(arylene sulfide) polymer employing at least one dihaloaromatic compound, a sulfur source, a polar organic compound, a lithium salt which is soluble in the polar organic compound, and water in an amount less than about 1.75 moles of water per mole of sulfur under polymerization conditions. The pressure and temperature are chosen to allow the volatile reactants to be maintained in liquid form in the reaction mixture.Type: GrantFiled: October 23, 1992Date of Patent: July 27, 1999Assignee: Phillips Petroleum CompanyInventors: Carlton E. Ash, Jon F. Geibel, Harold D. Yelton
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Patent number: 5712039Abstract: The invention provides a curable, structural epoxy adhesive composition comprising: (a) an epoxy resin; (b) a curing agent for the epoxy resin; and (c) a compound of the formula I: ##STR1## in which R.sup.1 and R.sup.2, which may be the same or different, are selected from an alkyl group, a hydroxyalkyl group, a cycloalkyl group, an aryl group, an arylalkyl group, or a heterocyclic group in which the one to three non-carbon atoms in the ring are independently selected from S, N, and O.Type: GrantFiled: April 11, 1995Date of Patent: January 27, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Virginia C. Marhevka, Allen L. Griggs, Kent S. Tarbutton
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Patent number: 5594096Abstract: A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble branched polymeric composition effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises adding an amount of the composition, effective for the purpose, to the aqueous solution so as to complex, precipitate and remove contaminants from the aqueous solution.Type: GrantFiled: March 1, 1996Date of Patent: January 14, 1997Assignee: BetzDearborn Inc.Inventors: William S. Carey, Ellen M. Meyer, Jeffrey H. Peltier
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Patent number: 5565517Abstract: A process for preparing an organic polysulfide polymer, such as polyethylene trisulfide, is provided which comprises contacting a dimercaptan such as 1,2-ethanedithiol with elemental sulfur using a basic catalyst wherein the dimercaptan, elemental sulfur, and basic catalyst are each present in an effective amount to effect the preparation of the organic polysulfide polymer. A process for controlling the molecular weight of an organic polysulfide polymer is also provided which comprises contacting a mercaptan with a dimercaptan and sulfur, in the presence of a basic catalyst, under conditions sufficient to prepare an organic polysulfide polymer.Type: GrantFiled: November 16, 1994Date of Patent: October 15, 1996Assignee: Phillips Petroleum CompanyInventors: Howard F. Efner, James E. Shaw
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Patent number: 5536808Abstract: The preferred polymers comprise cyclic units having sulphur at the 1 position, nitrogen at the 3 position, a substituent R group carried off of a carbon at the 4 position, and a carbon at each of the 2 and 5 positions of the thiazole ring. Each of the units is connected through the 2 or 5 position to another thiazole unit. Intermediate units are connected through the 2 and 5 positions to thiazole units on either side, terminal (end) units are connected to a respective adjacent thiazole unit at the 2 position, hydrogen or another substituent is carried off of the 5 position of the terminal unit. The R substituent group is a hydrocarbon having more than 1 carbon atom.Type: GrantFiled: October 5, 1994Date of Patent: July 16, 1996Assignee: The Regents of the University of MichiganInventors: M. David Curtis, John I. Nanos, Mark D. McClain
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Patent number: 5470945Abstract: Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. Aromatic polyimide, aromatic polycarbonate, polyarylsulfide, aromatic polyester with liquid crystal property, and polyarylimidazolidine oligomers are incorporated into the isocyanate or labile hydrogen compounds to give high-performance characteristics. Such thermally-reversible isocyanate-based polymer compositions with high-performance characteristics are useful, among other things, as finish surface coatings on composite materials such as polypropylene and polyethylene terephthalate. Novel phenolic-hydroxyl terminated polyarylsulfide and polyarylimidazolidine oligomers and their preparation are also described.Type: GrantFiled: February 3, 1994Date of Patent: November 28, 1995Assignee: Battelle Memorial InstituteInventors: Richard A. Markle, Phyllis L. Brusky, George E. Cremeans, Joel D. Elhard, Donald M. Bigg, Sylvester Sowell
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Patent number: 5464931Abstract: A process for preparing an organic disulfide polymer such as polyethylene disulfide which is used in batteries comprises contacting a dimercaptan such as 1,2-ethanedithiol with elemental sulfur using a mixture of a basic compound such as NaOH and an ethoxylated alcohol such as Union Carbide's TERGITOL.RTM. 15-S-7 as catalyst wherein the dimercaptan is present in excess amount to effect the preparation of the disulfide polymer.Type: GrantFiled: August 15, 1994Date of Patent: November 7, 1995Assignee: Phillips Petroleum CompanyInventors: James E. Shaw, William E. Sattich, Howard F. Efner
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Patent number: 5444127Abstract: Curable systems for the preparation of polymeric products in which the curable system comprises an epoxy resin or an isocyanate, wherein the system contains a condensation reaction product ofa) a polyamine having only one primary amino group and only one tertiary amino group, and a non-cyclic backbone containing from 1 to 18 carbon atoms; andb) at least one of urea, guanidine, guanylurea, thiourea, and a mono-N,N' alkyl substituted urea or thiourea having from 1 to 3 carbon atoms in the alkyl moieties.Type: GrantFiled: September 13, 1993Date of Patent: August 22, 1995Assignee: Henkel CorporationInventors: John J. Miskel, Jr., Reuben H. Grinstein, Stephen A. Fischer
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Patent number: 5387667Abstract: Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. High-performance characteristics are incorporated into the polymer by using aromatic polycarbonate, aromatic polyester, polyarylsulfide, and polyarylimidazolidine oligomers. The compositions are useful as hot-melt adhesives, coatings and especially finish surface coatings on composite materials such as polypropylene and polyethylene terephthalate, moldings and in injection reaction molding applications and composite and laminate fabrication.Type: GrantFiled: August 9, 1993Date of Patent: February 7, 1995Assignee: Battelle Memorial InstituteInventors: Richard A. Markle, Joel D. Elhard, Donald M. Bigg, Sylvester Sowell, Phyllis L. Brusky, George E. Cremeans