Organic Compound Contains Hexavalent S Atom, E.g., Organosulfate, Sulfonate, Etc. Patents (Class 526/225)
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Patent number: 12065525Abstract: The present invention relates to the field of water-soluble or water-dispersible copolymers comprising at least one random copolymer comprising styrene, methacrylic acid, acrylic acid and butyl acrylate.Type: GrantFiled: November 8, 2019Date of Patent: August 20, 2024Assignee: Arkema FranceInventors: Anne-Laure Brocas, Sylvain Bourrigaud, Sylvie Cazaumayou
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Patent number: 12065762Abstract: A quad-polymer composition includes monomers of (a) acrylonitrile, (a) vinylimidazole, (c) methyl acrylate and (d) either acrylic acid or itaconic acid. Such quad-polymer compositions may be used to form fibers (such as by melt spinning) that may then be annealed, stabilized, and/or carbonized to produce carbon fibers. The quad-polymer composition may be used for supercapacitors, lithium battery electrodes once carbonized, and as synthesized, it may be used for wound healing fibers, fabrics, coatings, and films, and anti-bacterial/anti-microbial fibers, fabrics, coatings and films. The carbon fibers formed from the quad-polymer composition may be used for the fiber composites for automobile, aerospace structures, marine structures, military equipment/parts, sporting goods, robotics, furniture, and electronic parts.Type: GrantFiled: July 3, 2023Date of Patent: August 20, 2024Assignees: Board of Regents, the University of Texas System, Korea Institute of Carbon Convergence TechnologyInventors: Min Hye Jung, Hyun Kyu Shin, Kyu Soon Park, Duck Joo Yang, Benjamin Batchelor, Samsuddin Mahmood
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Patent number: 12006594Abstract: A quad-polymer composition includes monomers of (a) acrylonitrile, (a) vinylimidazole, (c) methyl acrylate and (d) either acrylic acid or itaconic acid. Such quad-polymer compositions may be used to form fibers (such as by melt spinning) that may then be annealed, stabilized, and/or carbonized to produce carbon fibers. The quad-polymer composition may be used for supercapacitors, lithium battery electrodes once carbonized, and as synthesized, it may be used for wound healing fibers, fabrics, coatings, and films, and anti-bacterial/anti-microbial fibers, fabrics, coatings and films. The carbon fibers formed from the quad-polymer composition may be used for the fiber composites for automobile, aerospace structures, marine structures, military equipment/parts, sporting goods, robotics, furniture, and electronic parts.Type: GrantFiled: July 3, 2023Date of Patent: June 11, 2024Assignees: Board of Regents, The University of Texas System, Korea Institute of Carbon Convergence TechnologyInventors: Min Hye Jung, Hyun Kyu Shin, Kyu Soon Park, Duck Joo Yang, Benjamin Batchelor, Samsuddin Mahmood
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Patent number: 11807696Abstract: The present invention relates to a method for producing a dicyclopentadiene-based resin and a dicyclopentadiene-based resin produced thereby, the method comprising thermal polymerizing under non-catalyst, non-initiator conditions, thereby enabling not only excellent yield, but also, by a low polydispersity index, a narrow molecular weight distribution and the realization of uniform physical properties.Type: GrantFiled: May 14, 2019Date of Patent: November 7, 2023Assignee: HANWHA SOLUTIONS CORPORATIONInventors: Hyeonuk Kang, Pilje Seong, Kyongjun Yoon, Min Ho Lee, Heejin Jang
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Patent number: 11787975Abstract: Cyanoacrylic adhesive compositions of the type comprising at least one cyanoacrylic acid ester or one malonic acid ester having an allyl, acrylic or methacrylic group, wherein there is also present at least one radical initiator of the polymerization reaction of the allyl, acrylic or methacrylic ester of cyanoacrylic acid or malonic acid and at least one radical inhibitor of said polymerization reaction. In comparison with known cyanoacrylic adhesive compositions, those according to the invention offer the advantage of maintaining their bonding capability even at high temperatures, in particular up to 150° C.Type: GrantFiled: June 24, 2020Date of Patent: October 17, 2023Assignee: PERMABOND ENGINEERING ADHESIVES LTDInventors: Giorgio Zaffaroni, Alessio Monesi
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Patent number: 10964444Abstract: The present invention aims to provide a resin composition which can provide a molded article excellent in insulation and showing a low relative permittivity and which causes no melt fracture even when extrusion-molded at a high shear rate. The resin composition of the present invention includes an aromatic polyether ketone resin (I) and a fluororesin (II). The fluororesin (II) is a copolymer of tetrafluoroethylene and a perfluoro ethylenically unsaturated compound represented by the following formula (1): CF2?CF—Rf1??(1) wherein Rf1 represents —CF3 or —ORf2; and Rf2 represents a C1-C5 perfluoroalkyl group. The aromatic polyether ketone resin (I) and the fluororesin (II) satisfy a melt viscosity ratio (I)/(II) of not lower than 0.001 but lower than 0.3.Type: GrantFiled: July 24, 2014Date of Patent: March 30, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
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Patent number: 9534106Abstract: A process for manufacturing a dispersion of a vinylidene fluoride (VDF) thermoplastic polymer [polymer (F)], said process comprising polymerizing VDF in an aqueous phase comprising from 0.5 to 1.5 g/l of at least one surfactant of formula F—(CF2CF2)3—CH2CH2—SO3Xa, wherein Xa is H, a alkali metal or a NRH4 group, with RH being H or a C1-C6 hydrocarbon group [surfactant (T)] and an organic oxidizing agent [agent (O)] as polymerization initiator.Type: GrantFiled: June 15, 2012Date of Patent: January 3, 2017Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Bradley Lane Kent, Valeriy Kapelyushko, Giulio Brinati, Alessandro Veneroni
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Patent number: 9328176Abstract: A functional styrene-butadiene copolymer is disclosed. More specifically, the copolymer is prepared by radical polymerization of a styrene monomer, a butadiene monomer and an epoxy acrylate monomer in an emulsion state and ring-opening of the resultant styrene-butadiene-epoxy acrylate copolymer. When blended with silica, the disclosed copolymer provides excellent wet stopping performance and superior wear resistance. Therefore, it can be usefully applied for industrial materials including fuel-efficient tires, snow tires, belts, hoses, etc.Type: GrantFiled: March 26, 2010Date of Patent: May 3, 2016Assignee: KOREA KUMHO PETROCHEMICAL CO., LTD.Inventors: Gwanghoon Kwag, Hoo Chae Kim, Donghyuk Na, Hyun-jong Paik, Jongyeop Lee
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Patent number: 8987396Abstract: Polymer polyols having a solids content of greater than 40 wt. %, a total ethylene oxide content of up to 25 wt. %, and a viscosity at 25° C. of less than 15,000 centistokes are produced by reacting (1) a base polyol having active hydrogen atoms with an ethylene oxide content of from 15 to 40 wt. % that has been formed in the presence of a double metal cyanide (DMC) catalyst, (2) one or more unsaturated monomers, (3) at least one radical initiator, optionally (4) a preformed stabilizer and optionally (5) a chain transfer agent. These polymer polyols (PMPOs) are useful in the preparation of polyurethane foams and elastomers.Type: GrantFiled: March 15, 2013Date of Patent: March 24, 2015Assignee: Bayer MaterialScience LLCInventors: Rick L. Adkins, Jose F. Pazos, Stanley L. Hager
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Patent number: 8969437Abstract: The invention provides a compound which is useful in production of a fluoropolymer and easy to be removed from the produced fluoropolymer, a method of producing the compound, and a method of producing a fluoropolymer using the compound. The invention provides a compound which is represented by Rf1—CH2O—CF2—CHF—Rf2—X, wherein Rf1 represents a fluoroalkyl group containing 1 to 5 carbon atoms, Rf2 represents a fluoroalkylene group containing 1 to 3 carbon atoms, X represents —COOM or —SO3M, and M represents one of H, K, Na, and NH4.Type: GrantFiled: January 18, 2013Date of Patent: March 3, 2015Assignee: Daikin Industries, Ltd.Inventors: Nobuhiko Tsuda, Akinari Sugiyama
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Patent number: 8936797Abstract: The present invention relates to polymer ic thickener compositions comprising at least one water-swellable crosslinked copolymer, a process for preparing such compositions and their use as a thickener, e.g., in cosmetic, dermatologic, pharmaceutical or veterinary formulations. The water-swellable crosslinked copolymer according to the present invention is prepared from a mixture comprising (a) acrylamide, (b) an acrylamidoalkylsulfonic acid and/or a salt thereof and (c) an amine-based polyfunctional crosslinking agent comprising at least three allylic functions.Type: GrantFiled: December 21, 2007Date of Patent: January 20, 2015Assignee: S.P.C.M. S.A.Inventor: Frédéric Blondel
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Patent number: 8895681Abstract: Amorphous hydrofluoroolefin telomers are prepared by a free-radical polymerization process conducted at high temperature and pressure in the presence of non-monomeric chain transfer agent.Type: GrantFiled: December 21, 2006Date of Patent: November 25, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Jon Lee Howell, Clay Woodward Jones, Robert Clayton Wheland
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Patent number: 8871406Abstract: A highly proton conductive polymer electrolyte composite membrane for a fuel cell is provided. The composite membrane includes crosslinked polyvinylsulfonic acid. The composite membrane is produced by impregnating a mixed solution of vinylsulfonic acid as a monomer, a hydroxyl group-containing bisacrylamide as a crosslinking agent and a photoinitiator or thermal initiator into a microporous polymer support, polymerizing the monomer, and simultaneously thermal-crosslinking or photo-crosslinking the polymer to form a chemically crosslinked polymer electrolyte membrane which is also physically crosslinked with the porous support. Further provided is a method for producing the composite membrane in a simple manner at low cost as well as a fuel cell using the composite membrane.Type: GrantFiled: December 23, 2008Date of Patent: October 28, 2014Assignee: Korea Institute of Energy ResearchInventors: Young Woo Choi, Chang Soo Kim, Gu Gon Park, Seok Hee Park, Sung Dae Lim, Tae Hyun Yang, Young Gi Yoon, Min Jin Kim, Kyoung Youn Kim, Young Jun Sohn, Won Yong Lee, Mi-Soon Lee
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Patent number: 8871882Abstract: A method for the preparation of a fluoropolymer by means of emulsion polymerization of a reaction mixture in an aqueous medium is disclosed wherein the reaction mixture includes a fluoromonomer having the structure of wherein R1, R2, and R3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R1, R2, and R3 is a fluorine atom, and wherein R is each independently a substituent on the styrenic ring, n is an integer from 0 to 5 representing the number of the substituents on the styrenic ring; b) an emulsion stabilizer combination comprising: i) an anionic surfactant; and, ii) a cationic surfactant or a non-ionic surfactant; and, c) a free-radical initiator.Type: GrantFiled: February 14, 2012Date of Patent: October 28, 2014Assignee: Akron Polymer Systems, Inc.Inventors: Xiaoliang Zheng, Dong Zhang, Jiaokai Jing, Ted Calvin Germroth, Frank W. Harris, Thauming Kuo, Bin Wang, Douglas Stephens McWilliams
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Patent number: 8835565Abstract: Preformed stabilizers useful for the production of low viscosity, high solids polymer polyols are produced by free-radical polymerization of: (a) at least one ethylenically unsaturated macromolecule or macromer with (b) at least three different ethylenically unsaturated monomers in the presence of (c) at least one free-radical polymerization initiator, and, optionally, (d) a liquid diluent, and, optionally, (e) a chain transfer agent.Type: GrantFiled: April 18, 2012Date of Patent: September 16, 2014Assignee: Bayer MaterialScience LLCInventors: Jiong England, Rick L. Adkins, Brian L. Neal, William Gill
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Publication number: 20140186445Abstract: A method for the production of biodegradable nanoparticles with an average particle size of less than 400 nm. In a first step, a macromonomer is prepared in a ring opening polymerization process between a hydrophilic acrylate compound (A) as an initiator and hydrophobic cyclic monomers (B), wherein the macromonomer comprises at least two repetitive units based on the cyclic monomer. In a second step, this macromonomer or a mixture of macromonomers and/or commercial biocompatible monomers is polymerized, e.g. in a starved, miniemulsion or emulsion radical polymerization in water in the presence of a surfactant to the nanoparticle without necessitating additional subsequent steps for the actual production of the nanoparticles. The correspondingly made nanoparticles and uses thereof also are disclosed.Type: ApplicationFiled: May 14, 2012Publication date: July 3, 2014Applicant: ETH ZURICHInventors: Davide Moscatelli, Marco Lattuada, Massimo Morbideli, Yingchuan Yu
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Patent number: 8697822Abstract: The present invention relates to a method for the polymerization in an aqueous medium of monomers, and especially of fluoromonomers, using non-fluorinated surfactants; and the fluoropolymers formed therefrom. Specifically, the method of the polymerization uses one or more non-fluorinated surfactants selected from the group consisting of polyvinylphosphonic acid, polyacrylic acids, polyvinyl sulfonic acid, and salts thereof. Additionally, the use of polyvinylphosphonic acid, polyacrylic acids, polyvinyl sulfonic acid as surfactants in aqueous free radical polymerization is also novel.Type: GrantFiled: June 26, 2006Date of Patent: April 15, 2014Assignee: Arkema Inc.Inventors: Mehdi Durali, Lotfi Hedhli, Ramin Amin-Sanayei
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Patent number: 8691482Abstract: The instant disclosure describes methods for preparing latex resins for coated carriers using surfactant partitioning, which resins exhibit both lower ? potential and greater latex stability, while not adversely affecting particle size, toner charge or other metrics.Type: GrantFiled: June 1, 2013Date of Patent: April 8, 2014Assignee: Xerox CorporationInventors: Daryl W Vanbesien, Michael Steven Hawkins, Corey Tracy, Richard P N Veregin, Karen A Moffat, Paul Joseph Gerroir, Thomas E Enright, Valerie Farrugia
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Publication number: 20130345381Abstract: The invention relates to a method for synthesizing 2,3,3,3-tetrafluoropropene containing fluoropolymers using non-fluorinated surfactants in an emulsion process. No fluorinated surfactants are used in the process, and a persulfate initiator is used as the primary initiator. The process produces high molecular weight copolymers.Type: ApplicationFiled: March 15, 2012Publication date: December 26, 2013Inventors: Ramin Amin-Sanayei, Caiping Lin, Cedric Airaud
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Publication number: 20130316178Abstract: Providing a process for advantageously producing spherical particles of furfuryl alcohol resin using only furfuryl alcohol without using a harmful aldehyde as a starting material. In the process, furfuryl alcohol is subjected to a self-condensation reaction in the presence of an acid catalyst, whereby a fluidic condensation resin of furfuryl alcohol is obtained. The condensation resin of furfuryl alcohol is granulated and cured using water as a reaction medium in the presence of a dispersion stabilizer and an acid catalyst having a pKa of not more than 1.5, whereby spherical cured resin particles are formed.Type: ApplicationFiled: August 7, 2013Publication date: November 28, 2013Applicant: Asahi Organic Chemicals Industry Co., LTD.Inventors: Yasuhiro MATSUMOTO, Yuta MURAI
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Publication number: 20130267669Abstract: Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator.Type: ApplicationFiled: June 5, 2013Publication date: October 10, 2013Inventors: Casey D. Stokes, Young Chang
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Patent number: 8519072Abstract: A process comprising polymerizing at least one fluorinated monomer in an aqueous medium containing initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer, the polymerization agent comprising: fluoropolyether acid or salt thereof having a number average molecular weight of at least about 800 g/mol; and fluorosurfactant having the formula: [R1—On-L-A?]Y+ wherein: R1 is a linear or branched partially or fully fluorinated aliphatic group which may contain ether linkages; n is 0 or 1; L is a linear or branched alkylene group which may be nonfluorinated, partially fluorinated or fully fluorinated and which may contain ether linkages; A? is an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion, and phosphonate; and Y+ is hydrogen, ammonium or alkali metal cation; with the proviso that the chain length of R1—On-L- is not greater than 6 atoms.Type: GrantFiled: June 23, 2011Date of Patent: August 27, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Paul Douglas Brothers, Subhash Vishnu Gangal
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Publication number: 20130217849Abstract: A composition comprising a mixture of fluoropolyether acids or salts having a number average value of about 800 to about 2500 g/mol. The amount of fluoropolyether acids or salt in the mixture having a molecular weight of not more than 500 g/mol is not more than 50 ppm by weight of the total amount of fluoropolyether acids or salts in the mixture. The amount of fluoropolyether acids or salts in the mixture having a molecular weight of 2500 g/mol or greater is not more than 40% by weight of the total amount of fluoropolyether acids or salts in the mixture. Preferably the fluoropolyether acids or salts comprise an anionic group selected from the group consisting of carboxylate, sulfonate, sulfonamide anion and phosphonate. Also disclosed is an aqueous dispersion polymerization process for fluoropolymer manufacture employing polymerization agent comprising the specified mixture of fluoropolyether acids or salts.Type: ApplicationFiled: March 26, 2013Publication date: August 22, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: E I Du Pont De Nemours And Company
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Patent number: 8487060Abstract: Provided is a polychloroprene latex extremely favorable in adhesive properties. The present invention relates to a method of producing a polychloroprene latex, comprising polymerizing chloroprene or a mixture of chloroprene and a monomer copolymerizable with chloroprene in an aqueous medium containing a surfactant at a concentration of lower than its critical micelle concentration (CMC) and a polymer dispersant of a metal salt of aromatic sulfonic acid formalin condensate added thereto. The polymer dispersant for use is preferably a metal salt of aromatic sulfonic acid formalin condensate. The polychloroprene latex obtained can be used as an adhesive.Type: GrantFiled: August 17, 2010Date of Patent: July 16, 2013Assignees: Denki Kagaku Kogyo Kabushiki Kaisha, Tohoku UniversityInventors: Naoki Kobayashi, Mikio Konno, Daisuke Nagao, Yoshihiro Mashiko, Toshiaki Otsu
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Patent number: 8399703Abstract: The invention provides a compound which is useful in production of a fluoropolymer and easy to be removed from the produced fluoropolymer, a method of producing the compound, and a method of producing a fluoropolymer using the compound. The invention provides a compound which is represented by Rf1—CH2O—CF2—CHF—Rf2—X, wherein Rf1 represents a fluoroalkyl group containing 1 to 5 carbon atoms, Rf2 represents a fluoroalkylene group containing 1 to 3 carbon atoms, X represents —COOM or —SO3M, and M represents one of H, K, Na, and NH4.Type: GrantFiled: July 24, 2008Date of Patent: March 19, 2013Assignee: Daikin Industries, Ltd.Inventors: Nobuhiko Tsuda, Akinari Sugiyama
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Patent number: 8383733Abstract: The present invention relates to novel polymer polyols which have low viscosities and high hydroxyl numbers, and to a process for the preparation of these novel polymer polyols. These polymer polyols have hydroxyl numbers of ?20, solids contents of about 30 to about 65% by weight and a viscosity that is less than or equal to: be[2.7c]. These comprise the reaction product of a base polyol, a preformed stabilizer and at least one ethylenically unsaturated monomer, in the presence of a free-radical polymerization initiator and at least one polymer control agent. The base polyol has a hydroxyl number of 60 to 1900, a functionality of 1 to 10, and an equivalent weight of 30 to 900.Type: GrantFiled: October 31, 2011Date of Patent: February 26, 2013Assignee: Bayer MaterialScience LLCInventors: Rick L. Adkins, Shriniwas S. Chauk
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Publication number: 20130044365Abstract: A method of preparing a monodisperse particle may include mixing at least two types of monomers in a solvent, placing an initiator in the solvent, and forming a particle having a copolymer shape by polymerizing the at least two types of monomers. The particle may have a size controlled by a content of the at least two types of monomers.Type: ApplicationFiled: June 14, 2012Publication date: February 21, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Moon Gyu Han, Chang Gyun Shin, HongShik Shim, Seog-jin Jeon
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Publication number: 20120231369Abstract: The present invention describes the synthesis of new fluorinated elastomers with very low glass transition temperatures (Tg), a good resistance to bases, gasoline and other carburants and good workability properties, these elastomers contain hexafluoropropene (HFP), perfluoro(4-methyl-3,6-dioxaoct-7-ene) sulfonyl fluoride (PFSO2F), vinylidene fluoride (VDF) and/or at least one fluorinated alkene and/or one vinyl perfluorinated ether. In a precise case, they are prepared by radical polymerisation of HFP and PFSO2F or by radical terpolymerisation HFP, PFSO2F and VDF in the presence of different organic initiator, such as peroxides, peresters or diazo compounds.Type: ApplicationFiled: April 18, 2012Publication date: September 13, 2012Applicant: HYDRO QUEBECInventors: Bruno Michel Ameduri, Michel Armand, Mario Boucher, Abdellatif Manseri
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Publication number: 20120149859Abstract: Provided are a latex for dip molding, a composition for dip molding, a preparation method of a dip molded product, and a dip molded product prepared thereby. The latex for dip molding includes a conjugated diene monomer, an ethylenically unsaturated nitrile monomer, and an ethylenically unsaturated acid monomer, wherein the latex further includes sodium methallyl sulfonate as a copolymerizable ionic monomer. A dip molded product having excellent tensile strength, elongation, and touch may be obtained from a composition using the latex according to the present invention, and the generation of limitations, such as non-uniformity of physical properties and difficulties in product management, may be prevented.Type: ApplicationFiled: June 11, 2010Publication date: June 14, 2012Applicant: LG CHEM, LTDInventors: Seung Hun Yang, Ho Yeul Choi, Jung Su Han, Byoung Yun Kim, Jung Eun Kim
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Publication number: 20120010352Abstract: Aqueous suspension comprising 35-45 wt % of solid diacyl peroxide particles having a d50 in the range 1-10 microns, 0.05-1 wt % of a dispersant, and not more than 1 wt % of an organic solvent. This concentrated peroxide suspension comprises only a minor amount of dispersant, has a low volatile organic content and is nonetheless stable for months and low in viscosity.Type: ApplicationFiled: March 31, 2010Publication date: January 12, 2012Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventor: Boen Ho O
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Patent number: 8013088Abstract: A polymerization reaction mixture for the cationic polymerization of unsaturated biological oils (e.g. vegetable oils and animals oils) based on the cationic reaction of double bonds initiated by superacids is provided. The polymerized oils have a viscosity about 10 to 200 times higher than the initial oil and relatively high unsaturation (only about 10-30% lower than that of initial oils).Type: GrantFiled: March 9, 2009Date of Patent: September 6, 2011Assignee: Pittsburg State UniversityInventors: Mihail Ionescu, Zoran S. Petrovic
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Patent number: 7989568Abstract: A process comprising polymerizing in an aqueous medium at least one fluorinated olefin monomer other than vinylidene fluoride in the presence of a compound of formula (1): Rf(CH2CF2)m—(CH2)nSO3M??(1) wherein Rf is a C1 to C4 linear or branched perfluoroalkyl group, m is an integer of from 1 to 6, n is from 0 to 4, M is H, NH4, Li, Na or K, and a method of altering the surface behavior of a liquid comprising adding to the liquid the composition of a compound of formula (1).Type: GrantFiled: November 13, 2008Date of Patent: August 2, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Sheng Peng, Phan Linh Tang
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Patent number: 7973104Abstract: The present invention relates to rubbery core/shell polymers that have improved heat and ultraviolet light resistance. These polymers can be blended with thermoplastics to make leathery compositions. The core/shell polymers of this invention have an inner core and an outer shell. The inner core is has repeat units which are derived from (a) butyl acrylate, (b) a member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) optionally, an alkoxy ethyl acrylate or an alkoxy ethyl methacrylate, (d) acrylonitrile, (f) a cross-linking agent, and (g) a monomer containing reactive cure sites The outer core has repeat units which are derived from (d) acrylonitrile, (e) styrene, and (f) additional cross-linking agent. The outer core of these polymers is void of repeat units that are derived from methyl methacrylate.Type: GrantFiled: June 29, 2006Date of Patent: July 5, 2011Assignee: Eliokem S.A.S.Inventor: Hung Dang Ngoc
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Patent number: 7968743Abstract: A thiocarbonylthio compound and free radical polymerization employing the same. The thiocarbonylthio compound is represented by formula (I) or (II): wherein Z can be independently perfluoroalkyl, alkyl, haloalkyl, aryl, alkylaryl, haloalkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, alkoxyaryl, alkylsulfonyl, alkylsulfonylaryl, dialkylphosphinyl, or dialkylphosphinothioyl; R1 and R2 can be each independently hydrogen, alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl; R3 is alkyl, aryl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl. Furthermore, R3 can also be alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, haloalkylaryl, alkylsilyl, alkylthio, alkylthioaryl, or substituent containing CN, CO, COOH, COOCH3 or heterocyclic moieties; and R4 is perfluoroalkyl. The thiocarbonylthio compound can be used as a reversible chain transfer agent in a free radical polymerization to obtain a polymer with a controlled molecular weight and narrow polydispersity.Type: GrantFiled: November 4, 2009Date of Patent: June 28, 2011Assignee: Industrial Technology Research InstituteInventors: Kuo Chen Shih, Po Wen Chung, Mei Hua Wang
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Publication number: 20110112265Abstract: A curable composition comprising (A) a vinylidene fluoride type elastomer which is a copolymer of vinylidene fluoride (a1), at least one perfluoroolefin (a2) selected from the group consisting of tetrafluoroethylene, hexafluoropropylene and perfluoro(alkyl vinyl ether) and a cyano group-containing monomer (a3) (the proportion of vinylidene fluoride exceeds 20% by mole), and (B) a compound generating ammonia at 40° to 330° C. alone as a curing agent. The present invention can provide a curable composition of a vinylidene fluoride type elastomer assuring improved crosslinking speed and making it possible to use a cheap curing agent, and a molded article obtained from the curable composition. Physical properties under normal conditions can also be improved by the presence of the solvent having affinity for the compound generating ammonia.Type: ApplicationFiled: June 29, 2009Publication date: May 12, 2011Applicant: DAIKIN INDUSTRIES LTD.Inventors: Keiko Washino, Shoji Fukuoka, Daisuke Ota, Mitsuru Kishine
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Publication number: 20110014465Abstract: Provided is a removable acrylic pressure sensitive adhesive comprising (A) 70-96.5 weight % of (meth)acrylic acid ester monomer having C1-C14 alkyl group; (B) 0.5-27 weight % of one or more functional group containing monomers selected from the group consisting of carboxyl group containing monomer, hydroxyl group containing monomer, epoxy group containing monomer, vinyl ester group containing monomer and cyano group containing monomer; and (C) 0.6-3 weight % of a cross linking agent having 5-13 alkylene oxide groups and acrylate group or vinyl group in 100 weight % of the monomers and the cross linking agent, and the adhesive of the present invention is a water based adhesive and pro-environmental, and demonstrates excellent adhesiveness at room temperature and under aging atmosphere and excellent dimensional stability as well, so that it can be widely used for various pressure sensitive adhesive sheets for outdoor/indoor advertisement, automobile, printing, decorating, etc.Type: ApplicationFiled: July 7, 2010Publication date: January 20, 2011Applicant: LG CHEM, LTD.Inventors: Kong-ju Song, Young-min Kim, Chang-bum Ko, Kum-hyoung Lee
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Publication number: 20100331490Abstract: The present invention relates to a polyolefin composition comprising an olefin homo- or copolymer (A) in an amount of 90 wt. % or more, and an olefin homo- or copolymer (B) comprising hydrolysable silicon-containing groups, wherein olefin homo- or copolymer (B) is present in the composition in an amount of from 0.01 to 2 wt. %.Type: ApplicationFiled: November 7, 2007Publication date: December 30, 2010Applicant: BOREALIS TECHNOLOGY OYInventors: Markus Gahleitner, Tung Pham, Johannes Wolfschwenger, Doris Machl
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Patent number: 7838607Abstract: Process for preparing an antistatic for olefin polymerization by contacting an antistatically acting compound comprising at least one hydrogen atom bound to a nonmetallic heteroatom with at least one metal alkyl in an amount which is sufficient to react completely with the at least one hydrogen atom bound to a heteroatom, wherein the antistatically acting compound and the metal alkyl are each present in a concentration of at least 0.01% by weight during contacting.Type: GrantFiled: May 4, 2007Date of Patent: November 23, 2010Assignee: Basell Polyolefine GmbHInventor: Shahram Mihan
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Publication number: 20100247473Abstract: The present invention relates to polymer ic thickener compositions comprising at least one water-swellable crosslinked copolymer, a process for preparing such compositions and their use as a thickener, e.g., in cosmetic, dermatologic, pharmaceutical or veterinary formulations. The water-swellable crosslinked copolymer according to the present invention is prepared from a mixture comprising (a) acrylamide, (b) an acrylamidoalkylsulfonic acid and/or a salt thereof and (c) an amine-based polyfunctional crosslinking agent comprising at least three allylic functions.Type: ApplicationFiled: December 21, 2007Publication date: September 30, 2010Inventor: Frédéric Blondel
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Publication number: 20100240850Abstract: Process for preparing one or more iodinated organic substances having a molecular mass of less than 2000 (substances (S)) using (A) at least one free-radical-generating substance chosen from peroxides, diazo compounds, dialkyldiphenylalkanes, substances derived from tetraphenylethane, boranes and iniferter substances comprising at least one thiuram disulphide group, (B) an ethylenically unsaturated substance capable of adding a free radical to its ethylenic double bond, (C) molecular iodine, which comprises the steps according to which at least a fraction of (A), at least a fraction of (B) and at least a fraction of (C) are introduced into a reactor, and then the contents of the reactor are caused to react, while introducing therein the possible remainder of (A), the possible remainder of (B) and the possible remainder of (C), until a moment is reached when the content of the reactor is a mixture comprising one or more substances (S).Type: ApplicationFiled: May 6, 2010Publication date: September 23, 2010Applicant: SOLVAY (SOCIETE ANONYME)Inventors: Patrick LACROIX-DESMAZES, Romain Severac, Bernard Boutevin, Vincent Bodart, Vincent Kurowski
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Patent number: 7776969Abstract: This invention relates to novel ethylenically unsaturated macromers, preformed stabilizers prepared from these novel macromers, polymer polyols prepared from either the novel ethylenically unsaturated macromers or the preformed stabilizers, and to processes for the preparation of these compositions.Type: GrantFiled: December 4, 2006Date of Patent: August 17, 2010Assignee: Bayer MaterialScience LLCInventor: Rick L. Adkins
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Patent number: 7750079Abstract: Compositions, such as lens precursor compositions, and methods for producing lens precursor compositions have been invented. The present methods include forming a premix composition, which can include one or more monomeric components, forming a macromer composition, which includes one or more silicon containing macromers, forming a premix/initiator composition, which can include a photoinitiator, and contacting the premix/initiator composition with the macromer composition to form a polymerizable monomer-containing composition useful in the production of producing silicone hydrogel contact lenses.Type: GrantFiled: August 7, 2006Date of Patent: July 6, 2010Assignee: CooperVision International Holding Company, LPInventors: Sarah L. Almond, John H. D. Browning
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Publication number: 20100144958Abstract: The present invention relates to a branched polymer obtainable an addition polymerisation process, preferably a free-radical polymerisation process, which is the reaction product of: (a) an initiator, optionally but preferably a free-radical initiator, (b) optionally but preferably a compatible chain transfer agent (E and E?), (c) at least one ethylenically monounsaturated monomer (G and/or J), (d) at least one ethylenically polyunsaturated monomer (L), wherein at least one of (a)-(d) has a molecular weight of at least 1000 Daltons, and the mole ratio of (d) to (c) is greater than 0.0005 to 1.Type: ApplicationFiled: December 10, 2007Publication date: June 10, 2010Applicants: UNILEVER PLC, UNILEVER N.V.Inventors: Paul Hugh Findlay, Steven Paul Rannard, Brodyck James Lachlan Royles, Jonathan Victor Mark Weaver
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Patent number: 7718432Abstract: The present invention provides novel non-immunogenic, hydrophilic/cationic block copolymers comprising a neutral-hydrophilic polymer and a cationic polymer, wherein both polymers have well-defined chain-end functionality. A representative example of such a block copolymer comprises poly(N-(2-hydroxypropyl)methacrylamide) (PHPMA) and poly(N-[3-(dimethylamino)propyl]methacrylamide) (PDMAPMA). Also provided is a synthesis method thereof in aqueous media via reversible addition fragmentation chain transfer (RAFT) polymerization. Further provided are uses of these block copolymers as drug delivery vehicles and protection agents.Type: GrantFiled: March 20, 2007Date of Patent: May 18, 2010Assignee: The University of Southern MississippiInventors: Charles W. Scales, Faqing Huang, Charles L. McCormick
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Publication number: 20100048844Abstract: A thiocarbonylthio compound and free radical polymerization employing the same. The thiocarbonylthio compound is represented by formula (I) or (II): wherein Z can be independently perfluoroalkyl, alkyl, haloalkyl, aryl, alkylaryl, haloalkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, alkoxyaryl, alkylsulfonyl, alkylsulfonylaryl, dialkylphosphinyl, or dialkylphosphinothioyl; R1 and R2 can be each independently hydrogen, alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl; R3 is alkyl, aryl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl. Furthermore, R can also be alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, haloalkylaryl, alkylsilyl, alkylthio, alkylthioaryl, or substituent contaning CN, CO, COOH, COOCH3 or heterocyclic moieties; and R4 is perfluoroalkyl. The thiocarbonylthio compound can be used as a reversible chain transfer agent in a free radical polymerization to obtain a polymer with a controlled molecular weight and narrow polydispersity.Type: ApplicationFiled: November 4, 2009Publication date: February 25, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Kuo Chen Shih, Po Wen Chung, Mei Hua Wang
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Publication number: 20090270572Abstract: Oxymethylene copolymers having a high proportion of terminal alkyl ether groups and having terminal hydroxyalkylene groups are described. These polymers are distinguished by high thermal stability and high hot water resistance.Type: ApplicationFiled: April 14, 2009Publication date: October 29, 2009Inventors: Michael Haubs, Michael Hoffmockel, Jurgen Lingnau, Robert Gronner, Michael Gene Yearwood
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Patent number: 7566762Abstract: The present invention relates to a process for preparing a fluoropolymer containing at least one kind of fluoroolefin, which comprises carrying out polymerization in the presence of a surfactant represented by the formula (1): (wherein R1 and R2 may be the same or different respectively, and represent an alkyl group or an alkenyl group, R3 is a hydrogen atom, an alkyl group or an alkenyl group, the total carbon number of R1 to R3 is 2 to 25, L? is a group represented by —SO3?, —OSO3?, —PO3?, —OPO3? or —COO?, and M+ is a monovalent cation). Thereby, polymerization can be carried out with excellent production efficiency in the presence of a small amount of a surfactant, and a fluoropolymer can be prepared without lowering various physical properties such as water resistance by the surfactant.Type: GrantFiled: December 22, 2004Date of Patent: July 28, 2009Assignee: Daikin Industries, Ltd.Inventors: Masao Otsuka, Satoshi Tokuno, Katsuya Nakai
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Patent number: 7501479Abstract: A method for the cationic polymerization of unsaturated biological oils (e.g., vegetable oils and animal oils) based on the cationic reaction of double bonds initiated by superacids is provided. The process occurs under very mild reaction conditions (about 70-110° C. and atmospheric pressure) and with short reaction times. The polymerized oils have a viscosity about 10 to 200 times higher than the initial oil and relatively high unsaturation (only about 10-30% lower than that of initial oils).Type: GrantFiled: May 7, 2007Date of Patent: March 10, 2009Assignee: Pittsburg State UniversityInventors: Mihail Ionescu, Zoran S. Petrovic
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Publication number: 20080125558Abstract: A novel semi-batch emulsion polymerization process for the production of fluoroelastomers is disclosed wherein a hydrocarbon anionic surfactant is employed as the dispersing agent. The surfactant has the formula R-L-M wherein R is an alkyl group having between 6 and 17 carbon atoms, L is selected from the group consisting of ArSO3?, SO3?, SO4?, PO3? and COO? and M is a univalent cation. Preferred surfactants are sulfonates of the formula CH3—(CH2)n—SO3M, CH3—(CH2)n—C6H4—SO3M, or CH3—(CH2)n—CH?CHCH2—SO3M, where n is an integer from 6 to 17, or mixtures thereof, and M is a cation having a valence of 1. Surfactant is not introduced to the reactor until shortly after the polymerization reaction has begun.Type: ApplicationFiled: October 23, 2007Publication date: May 29, 2008Inventor: Phan Linh Tang
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Patent number: 7365115Abstract: An anti-reflective coating film is formed by applying on a chemically amplified photoresist film an anti-reflective coating composition comprising an alkali-soluble fluorine-containing polymer, an acid, an amine and a solvent capable of dissolving these components and having a pH of 7 or less. The formed anti-reflective coating film can serve to prevent multiple reflections within the photoresist film, increase the amount of reduction in thickness of the photoresist film upon development with a developer after exposure, and form a pattern having a rectangular cross-sectional pattern and not having T-top or round top.Type: GrantFiled: June 26, 2003Date of Patent: April 29, 2008Assignee: AZ Electronic Materials USA Corp.Inventors: Yasushi Akiyama, Yusuke Takano