Derived From Carboxylic Acid Containing At Least One Atom Of Halogen Or Sulfur Patents (Class 526/214)
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Publication number: 20120010317Abstract: The invention relates to a (meth)acrylate polymer obtainable by polymerizing a mixture comprising a) 0.1% to 99.9% by weight of at least one (meth)acrylate of the general formula I in which the radicals R1-R6 and also m take on the definition indicated in the description; and b) 99.9% to 0.1% by weight of one or a plurality of ethylenically unsaturated monomers which are different from a) and which are copolymerizable with a), the components a) and b) together making up 100% by weight of the polymerizable constituents of the mixture, the MW of the polymer being situated in the range from greater than or equal to 1000 g/mol to less than or equal to 50 000 g/mol. The resulting polymers are preparable preferably by the route of suspension polymerization or bead polymerization and, preferably in solution in reactive diluent, serve as polymer-bonded photoinitiators or as an additive to UV-curable resins for a very wide variety of fields of application, particularly for printing inks.Type: ApplicationFiled: February 25, 2010Publication date: January 12, 2012Applicant: Evonik Roehm GmbHInventors: Gerold Schmitt, Reinhold Martin, Patrik Hartmann, Wolfgang Klesse, Joachim Knebel
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Patent number: 8058375Abstract: Provided are polyfluorinated carboxylic acids and their salts containing an ethylene-tetrafluoroethylene moiety. The polyfluorinated carboxylic acids and salts are useful as surfactants in polymerization processes.Type: GrantFiled: October 21, 2009Date of Patent: November 15, 2011Assignee: E I. du Pont de Nemours and CompanyInventor: Weiming Qiu
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Publication number: 20110263722Abstract: The present invention relates to the preparation and use of well defined star macromolecules wherein the composition of the arms are selected to induce self assembly when the multi-arm segmented star macromolecules are dispersed in a liquid. The self assembled star macromolecules modify the rheology of the dispersing media. When targeting use in aqueous based systems the inner shell of the star macromolecules comprise non-ionizable monomer units. Compositions comprising the self assemblable star macromolecules are suitable for use as rheology modifiers in a number of applications including cosmetic and personal care compositions.Type: ApplicationFiled: April 23, 2010Publication date: October 27, 2011Inventors: Wojciech Jakubowski, Patrick McCarthy, Nicolay Tsarevsky, James Spanswick
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Patent number: 8022030Abstract: The present invention relates to the field of perfumery. More particularly, it concerns co-polymers, derived from a maleic anhydride derivative and a ethylenic derivative, comprising at least one ?-oxy or ?-thio carbonyl moiety capable of liberating an active molecule such as, for example, an ?,?-unsaturated ketone, aldehyde or carboxylic ester. The present invention concerns also the use of polymers or co-polymers in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's compounds.Type: GrantFiled: October 5, 2007Date of Patent: September 20, 2011Assignee: Firmenich SAInventors: Damien Berthier, Andreas Herrmann
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Publication number: 20110201773Abstract: The present invention relates to a branched vinyl polymer carrying dendrons made from monofunctional vinyl monomers and branched by virtue of difunctional vinyl monomers so that there is on average one branch or fewer per polymer chain to avoid gelation. The polymer may be made by chain-growth polymerization of predominantly monofunctional vinyl monomers in the presence of difunctional vinyl monomers and dendron units.Type: ApplicationFiled: April 6, 2009Publication date: August 18, 2011Applicant: Ulive Enterprises Ltd.Inventors: Gwenaelle Bonzi, Jonathan Weaver, Andrew Cooper, Steven Rannard
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Patent number: 7977438Abstract: A process for polymerizing at least one fluorinated monomer in an aqueous polymerization medium in the presence of initiator and polymerization agent to form an aqueous dispersion of particles of fluoropolymer having a fluoropolymers solids content of at least about 10% by weight. The polymerization agent is a combination of fluoropolyether acid or salt thereof and siloxane surfactant. The aqueous polymerization medium contains less than about 300 ppm of perfluoroalkane carboxylic acid or salt fluorosurfactants.Type: GrantFiled: November 9, 2007Date of Patent: July 12, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Paul Douglas Brothers, Subhash Vishnu Gangal
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Patent number: 7968625Abstract: A process for producing an aqueous fluoropolymer dispersion which includes adding a specific compound to a to-be-treated aqueous fluoropolymer dispersion containing a particle of fluoropolymer dispersed therein, the to-be-treated aqueous fluoropolymer dispersion containing a fluorinated surfactant (A) with a molecular weight lower than 1000 in an amount of 100 ppm or less of the fluoropolymer and the specific compound being (1) a sulfosuccinic acid alkyl ester or a salt thereof, or a sulfosuccinic acid fluoroalkyl ester or a salt thereof, (2) the fluorinated surfactant (A), (3) a fluorinated surfactant (B) with a molecular weight lower than 1000, differing from the fluorinated surfactant (A) and/or (4) an aliphatic carboxylic acid or a salt thereof, which compound is added in total amount of 10 to 5000 ppm of said fluoropolymer.Type: GrantFiled: June 9, 2006Date of Patent: June 28, 2011Assignee: Daikin Industries, Ltd.Inventors: Chie Sawauchi, Nobuhiko Tsuda
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Patent number: 7932333Abstract: 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 fluoropolyether acid or salt surfactant.Type: GrantFiled: November 9, 2007Date of Patent: April 26, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Paul Douglas Brothers, Subash Vishnu Gangal
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Publication number: 20110082272Abstract: To provide a method for purifying a fluorinated carboxylic acid having an etheric oxygen atom and its derivative, with small decomposition and inclusion of impurities. A liquid containing at least one member selected from the group consisting of a fluorinated compound represented by the following formula (1) and a fluorinated compound represented by the following formula (2) is held at a heating temperature of at most 150° C. and distilled: RFOR1COOH??(1) RFOR1COOR2??(2) RF is a linear or branched monovalent fluoroorganic group which may have an etheric oxygen atom in its main chain, R1 is a linear or branched bivalent organic group, and R2 is a linear or branched monovalent organic group.Type: ApplicationFiled: December 9, 2010Publication date: April 7, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Hirokazu TAKAGI, Ryuji Seki
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Patent number: 7910222Abstract: A polymerizable composition for forming an optical device, which comprises a polymerizable monomer of the following formula (1) and a polymerizable monomer of the following formula (2). Using the composition makes it possible to produce an optical device which has a high light transmittability and keeps a reduced transmission loss even in wet. wherein R1 and R2 each are H or D; R3 is H, D, CH3, CD3 or a halogen atom; R4is an alkyl group having from 2 to 8 carbon atoms and at least partly substituted with a fluorine atom, wherein R1 and R2 each are H or D; R3 is H, D, CH3, CD3 or a halogen atom; X1 to X5 each are H, D, a halogen atom or CF3, and at least one of X1 to X5 is a halogen atom or CF3.Type: GrantFiled: November 4, 2005Date of Patent: March 22, 2011Assignee: FUJIFILM CorporationInventors: Hiroki Sasaki, Masataka Sato, Hirokazu Kyota
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Publication number: 20110034623Abstract: The invention relates to a process for preparing CABAC or ACBCA pentablock copolymers based on (meth)acrylate with an OH functionalization of the A blocks.Type: ApplicationFiled: August 11, 2008Publication date: February 10, 2011Applicants: Evonik Roehm GmbH, Henkel Ag & Co. KGAAInventors: Sven Balk, Gerd Loehden, Holger Kautz, Volker Erb, Uwe Franken, Georg Kinzelmann, Thomas Moeller
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Patent number: 7855259Abstract: To provide a method for producing a melt-processable fluororesin, which is capable of increasing the molecular weight of the fluororesin and preventing coloration of the fluororesin, by using a specific fluorinated emulsifier other than ammonium perfluorooctanoate. A method for producing a melt-processable fluororesin which is characterized in that a fluorinated monomer is emulsion-polymerized in an aqueous medium containing a fluorinated emulsifier of a formula (I) XCF2CF2(O)mCF2CF2OCF2COOA wherein X is a hydrogen atom or a fluorine atom, A is a hydrogen atom, an alkali metal or NH4, and m is an integer of 0 or 1.Type: GrantFiled: April 17, 2008Date of Patent: December 21, 2010Assignee: Asahi Glass Company, LimitedInventors: Atsushi Funaki, Hiroki Kamiya
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Publication number: 20100317815Abstract: A fluoroelastomer is produced by the polymerization reaction of a fluorinated olefin using a ?H perfluorocarboxylic acid represented by the general formula: H(CF2)nCOOM (wherein M is hydrogen atom, alkali metal, or ammonium group; and n is 6, 7, or 8) or a salt thereof, as an emulsifier. The fluoroelastomer produced by the method of the present invention has a low Mooney viscosity ML1+10(121° C.) and thereby has an improved fluidity, which is essential for injection molding materials, as a result of the polymerization reaction of a fluorinated olefin using a ?H perfluorocarboxylic acid (salt) as an emulsifier. Accordingly, the productivity in injection molding can be improved. Moreover, there is neither remarkable decrease in the polymerization rate of the polymerization reaction nor deterioration of the physical properties of the vulcanizate, such as tensile strength, compression set characteristics, and hot tear resistance.Type: ApplicationFiled: March 3, 2008Publication date: December 16, 2010Applicant: UNIMATEC CO., LTD.Inventors: Mitsuru Maeda, Toshiharu Shimizu, Takashi Enokida
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Patent number: 7838608Abstract: The invention provides a fluorinated surfactant having the general formula: [Rf—(O)t—CHF—(CF2)n—COO—]iXi+??(I) wherein Rf represents a partially or fully fluorinated aliphatic group optionally interrupted with one or more oxygen atoms, t is 0 or 1 and n is 0 or 1, Xi+ represents a cation having a valence i and i is 1, 2 or 3. The surfactant can be used in emulsion polymerization of fluoromonomers to prepare fluoropolymers.Type: GrantFiled: December 19, 2006Date of Patent: November 23, 2010Assignee: 3M Innovative Properties CompanyInventors: Klaus Hintzer, Michael Jürgens, Harald Kaspar, Herbert Königsmann, Andreas R Maurer, Werner Schwertfeger, Tilman C. Zipplies
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Patent number: 7776946Abstract: The present invention provides an aqueous emulsion polymerization of fluorinated monomers including gaseous fluorinated monomers using a perfluoro ether surfactant as an emulsifier. The perfluoro ether surfactants correspond to formula (I) Rf—O—CF2CF2—X??(I) wherein Rf represents a linear or branched perfluoroalkyl group having 1, 2, 3 or 4 carbon atoms and X represents a carboxylic acid group or salt thereof. In a further aspect, the invention also provides an aqueous fluoropolymer dispersion comprising the perfluoro ether surfactant and the use of such dispersion in the coating or impregnation of substrates.Type: GrantFiled: July 14, 2006Date of Patent: August 17, 2010Assignee: 3M Innovative Properties CompanyInventors: Klaus Hintzer, Harald Kaspar, Andreas R. Maurer, Werner Schwertfeger, Tilman Zipplies
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Patent number: 7705074Abstract: 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: November 9, 2007Date of Patent: April 27, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Paul Douglas Brothers, Subhash Vishnu Gangal
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Patent number: 7678845Abstract: A pigment dispersion includes a pigment and a block copolymer having ionic aromatic monomers. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers. A process for preparing the pigment dispersion is also disclosed.Type: GrantFiled: January 26, 2006Date of Patent: March 16, 2010Assignee: Agfa Graphics NVInventors: Frank Louwet, Geert Deroover, Bert Groenendaal, Markus Hartenstein, Joachim Storsberg
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Patent number: 7674843Abstract: A pigment dispersion includes a pigment with at least one carboxylic acid group and a block copolymer including aromatic monomers having at least one carboxylic acid group or a salt thereof and aromatic monomers having at least one sulfonic acid group or a salt thereof. The pigment dispersions can be used for manufacturing inkjet inks and for the coating of colored layers.Type: GrantFiled: January 26, 2006Date of Patent: March 9, 2010Assignee: Agfa Graphics NVInventors: Frank Louwet, Geert Deroover, Bert Groenendaal, Markus Hartenstein, Joachim Storsberg
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Patent number: 7671152Abstract: The present invention is directed to a method of producing an amphiphilic block copolymer, including the steps of: (1) preparing a first aqueous polymerization medium which is comprised of (a) 4-vinylpyridine, (b) a trithiocarbonate RAFT agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium by the reaction of a latent surfactant with a surfactant activator; (2) polymerizing the 4-vinylpyridine within the first aqueous polymerization medium in the presence of a first free radical initiator to produce a poly(4-vinylpyridine); (3) protonating the poly(4-vinylpyridine) to form a protonated poly(4-vinylpyridine) RAFT macroinitiator; (4) preparing a second aqueous polymerization medium which is comprised of the protonated poly(4-vinylpyridine) RAFT macroinitiator and a monomer containing ethylenic unsaturation but is exclusive of a surfactant; and (5) polymerizing the protonated poly(4-vinylpyridine) RAFT macroinitiator and monomer containing ethylenic uType: GrantFiled: October 19, 2006Date of Patent: March 2, 2010Assignee: The Goodyear Tire & Rubber CompanyInventors: Dane Kenton Parker, Joseph John Kulig
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Publication number: 20100029878Abstract: To provide a method for efficiently producing a fluoropolymer by an aqueous emulsion polymerization in which a fluorocarboxylic acid compound is used. A method for producing a fluoropolymer, which comprises polymerizing a fluoromonomer by emulsion polymerization in the presence of a polymerization catalyst in an aqueous medium containing a fluorocarboxylic acid, wherein the aqueous medium in the polymerization has a pH of at most 4.Type: ApplicationFiled: October 13, 2009Publication date: February 4, 2010Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Yasuhiko MATSUOKA, Kunio Watanabe, Kiroki Kamiya
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Publication number: 20090227749Abstract: To provide a process for producing a perfluorocarbon polymer, whereby a perfluorocarbon polymer having a high content of —SO2F groups and a high molecular weight can be efficiently obtained. The process comprises polymerizing a monomer mixture comprising the liquid monomer (A) of the following formula (1) and tetrafluoroethylene at a polymerization temperature of from 25 to 45° C. by sequentially or continuously adding an initiator of the following formula (2): CF2?CF(OCF2CFX1)k—O1—(CF2)m—(CF2CFX2)n—SO2F??(1) wherein each of X1 and X2 which may be the same or different, is a fluorine atom or a trifluoromethyl group, k is an integer of from 0 to 3, l is 0 or 1, m is an integer of from 0 to 12, and n is an integer of from 0 to 3, [CF3CF2CF2O(CF(CF3)CF2O)pCF(CF3)COO]2??(2) wherein p is an integer of from 0 to 8.Type: ApplicationFiled: March 5, 2008Publication date: September 10, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Jyunichi TAYANAGI, Susumu SAITO, Adam Luke SAFIR
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Patent number: 7579418Abstract: The present invention relates to the process of extruding melt drawing fluoropolymer onto conductor to form insulated conductor at a line speed of at least 533 m/min and having no more than 10 sparks and no more than 2 lumps/13.7 km of insulated conductor under conditions that comprise an adequate process window to allow for these results to be obtained at different conditions within the process window. The invention identifies the critical parameters for achieving this process window, namely melt flow rate of the fluoropolymer, preferably being 30±3 g/10 min, and the melt temperature of the extruding/melt-drawing step, preferably being 393° C.±6° C.Type: GrantFiled: April 27, 2004Date of Patent: August 25, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Patrick Anthony DeFeo, Glenn W. Heffner, Niall D. McKee, Sundar Kilnagar Venkataraman
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Patent number: 7566754Abstract: The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated double bonds in the presence of a chain transfer agent having a functional group; and (b) reacting one or more functional groups of the resulting copolymer with an organic compound having an ethylenically unsaturated group. The crosslinkable copolymers of the invention are especially useful for the manufacture of biomedical mouldings, for example ophthalmic mouldings such as in particular contact lenses.Type: GrantFiled: August 10, 2007Date of Patent: July 28, 2009Assignee: Novartis AGInventors: Beat Müller, Alain Laurent, Veerle Coessens, Aaldert Rens Molenberg
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Publication number: 20080262176Abstract: The invention relates to a process for preparing (meth)acrylate-based ABA triblock copolymers with an olefinic functionalization of the A blocks.Type: ApplicationFiled: August 30, 2006Publication date: October 23, 2008Applicant: Evonik Roehm GmbHInventors: Gerd Loehden, Sven Balk, Monika Maerz, Christine Troemer
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Publication number: 20080207859Abstract: To provide a fluororesin which does not substantially contain perfluorooctanoic acid or its salt, and which has a low residual amount of a fluorinated emulsifier. A fluororesin which is obtained by emulsion-polymerizing a fluorinated monomer in an aqueous medium containing a fluorinated emulsifier of the formula (1): XCF2CF2(O)mCF2CF2OCF2COOA wherein X is a hydrogen atom or a fluorine atom, A is a hydrogen atom, an alkali metal or NH4, and m is an integer of from 0 or 1, and coagulating the obtained aqueous emulsion, followed by drying, wherein the residual amount of the fluorinated emulsifier of the formula (1) is at most 10 ppm.Type: ApplicationFiled: April 28, 2008Publication date: August 28, 2008Applicant: Asahi Glass Company, LimitedInventors: Yasuhiko Matsuoka, Shinya Higuchi, Jun Hoshikawa, Hiroki Kamiya
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Publication number: 20080200627Abstract: To provide a method for producing a melt-processable fluororesin, which is capable of increasing the molecular weight of the fluororesin and preventing coloration of the fluororesin, by using a specific fluorinated emulsifier other than ammonium perfluorooctanoate. A method for producing a melt-processable fluororesin which is characterized in that a fluorinated monomer is emulsion-polymerized in an aqueous medium containing a fluorinated emulsifier of a formula (1) XCF2CF2(O)mCF2CF2OCF2COOA wherein X is a hydrogen atom or a fluorine atom, A is a hydrogen atom, an alkali metal or NH4, and m is an integer of 0 or 1.Type: ApplicationFiled: April 17, 2008Publication date: August 21, 2008Applicant: ASAHI GLASS CO., LTD.Inventors: Atsushi FUNAKI, Hiroki Kamiya
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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
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Patent number: 7332553Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.Type: GrantFiled: November 15, 2006Date of Patent: February 19, 2008Assignee: MIP Technologies ABInventors: Börje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
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Patent number: 7285610Abstract: A polymer composition and method of preparing same is described wherein an ethylenically unsaturated monomer is contacted with a source of free radicals and a compound of formula (1A), (1B) and (1C) as defined herein. The polymer composition may be a homopolymer or a block copolymer.Type: GrantFiled: September 16, 2004Date of Patent: October 23, 2007Assignee: Rhodia ChimieInventors: Mathias Destarac, Dominique Charmot, Samir Zard, Isabelle Gauthier-Gillaizeau
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Patent number: 7268189Abstract: The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated double bonds in the presence of a chain transfer agent having a functional group; and (b) reacting one or more functional groups of the resulting copolymer with an organic compound having an ethylenically unsaturated group. The crosslinkable copolymers of the invention are especially useful for the manufacture of biomedical mouldings, for example ophthalmic mouldings such as in particular contact lenses.Type: GrantFiled: March 21, 2006Date of Patent: September 11, 2007Assignee: Novartis AGInventors: Beat Müller, Alain Laurent, Veerle Coessens, Aaldert Rens Molenberg
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Patent number: 7238750Abstract: The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated double bonds in the presence of a chain transfer agent having a functional group; and (b) reacting one or more functional groups of the resulting copolymer with an organic compound having an ethylenically unsaturated group. The crosslinkable copolymers of the invention are especially useful for the manufacture of biomedical mouldings, for example ophthalmic mouldings such as in particular contact lenses.Type: GrantFiled: June 14, 2006Date of Patent: July 3, 2007Assignee: Novartis AGInventors: Beat Müller, Alain Laurent, Veerle Coessens, Aaldert Rens Molenberg
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Publication number: 20070149741Abstract: The present invention is directed to a free radical control agent of the structural formula: wherein R1 is a divalent alkyl group of 1 to 12 carbon atoms, R2 and R3 are each independently hydrogen or an alkyl group of 1 to 12 carbon atoms, and R4 is —OH or —COOH, with the proviso that the total carbon atoms of R1, R2, and R3 is no greater than 12; and wherein Y represents a functional group that is capable of activating a vinylic carbon toward free radical addition.Type: ApplicationFiled: October 19, 2006Publication date: June 28, 2007Inventor: Dane Kenton Parker
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Patent number: 7230063Abstract: The present invention is directed to a free radical control agent of the structural formula: wherein R1 is a divalent alkyl group of 1 to 12 carbon atoms, R2 and R3 are each independently hydrogen or an alkyl group of 1 to 12 carbon atoms, and R4 is —OH or —COOH, with the proviso that the total carbon atoms of R1, R2, and R3 is no greater than 12; and wherein Y represents a functional group that is capable of activating a vinylic carbon toward free radical addition.Type: GrantFiled: October 19, 2006Date of Patent: June 12, 2007Assignee: The Goodyear Tire & Rubber CompanyInventor: Dane Kenton Parker
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Patent number: 7208557Abstract: The present invention refers to new classes of polymerisable monomers, to molecularly imprinted polymers obtainable by polymerisation of at least one of the monomers and a crosslinking monomer in the presence of a template molecule. The obtained polymers may be used for separation of enantiomers, diastereomers of the template molecule, and also for separation of the template molecule or template molecule analogues from structurally related compounds.Type: GrantFiled: December 23, 2004Date of Patent: April 24, 2007Assignee: MIP Technologies ABInventors: Börje Sellergren, Andrew Hall, Karine Chenon, Rohini Karmalkar
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Patent number: 7176255Abstract: The present invention relates to a process for preparing dye-comprising aqueous polymer dispersions by free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers in the presence of free-radical initiators, in which at least some of the monomers are employed in the form of an oil-in-water emulsion E1 whose disperse phase comprises at least one oil-soluble dye, wherein the disperse phase of E1 is formed essentially of dye-comprising monomer droplets having a diameter<500 nm. The present invention relates in addition to dye-comprising formulations which comprise the dye-comprising polymers of the invention and to pigmented formulations which comprise a polymer of the invention comprising optical brightener.Type: GrantFiled: July 30, 2003Date of Patent: February 13, 2007Assignee: BASF AktiengesellschaftInventors: Klemens Mathauer, Arno Boehm, Walter Maechtle, Peter Rossmanith, Sabine Kielhorn-Bayer, Klaus Muellen, Ulrike Rohr, Friedrich-Wilhelm Raulfs, Ulrike Schloesser, Wolfgang Schrof, Harutyun Hanciogullari, Karl Siemensmeyer, Paul Delavier, Ruediger Sens, Torsten Freund, Takahiro Ikeda, Takanori Wakebe
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Patent number: 7125938Abstract: A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from the group of cationic polymerization, anionic polymerization, conventional free radical polymerization, metathesis, ring opening polymerization, cationic ring opening polymerization, and coordination polymerization to form a macroinitiator comprising an ATRP initiating site and further initiating an ATRP polymerization of radically polymerizable monomers using the macroinitiator comprising an ATRP initiating site. Novel block copolymers may be formed by the disclosed method.Type: GrantFiled: February 18, 2004Date of Patent: October 24, 2006Assignee: Carnegie Mellon UniversityInventors: Krzysztof Matyjaszewski, Scott G. Gaynor, Simion Coca
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Patent number: 7091283Abstract: The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least one hydrophilic monomer having one ethylenically unsaturated double bond and at least one crosslinker comprising two or more ethylenically unsaturated double bonds in the presence of a chain transfer agent having a functional group; and (b) reacting one or more functional groups of the resulting copolymer with an organic compound having an ethylenically unsaturated group. The crosslinkable copolymers of the invention are especially useful for the manufacture of biomedical mouldings, for example ophthalmic mouldings such as in particular contact lenses.Type: GrantFiled: March 23, 2001Date of Patent: August 15, 2006Assignee: Novartis AGInventors: Beat Müller, Alain Laurent, Veerle Coessens, Aaldert Rens Molenberg
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Patent number: 7056413Abstract: An acrylate copolymer for use in pressure-sensitive adhesives, particularly suitable for the bonding of low-energy surfaces, is composed of the following monomer components: A) 60 to 95% by weight of one or more monomers selected from alkyl acrylates and alkyl methacrylates, the alkyl containing 1 to 10 carbon atoms; B) 5 to 15% by weight of one or more monomers selected from esters of (meth)acrylic acid with a polyethylene glycol derivative having from 2 to 4 ethylene glycol units, the (meth)acrylic esters being free from hydroxyl groups; and C) 1 to 35% by weight of a mixture of at least two vinyl compounds selected from vinyl compounds which contain one or more of the following functional groups: free carbonyl groups, free carboxyl groups, groups having one or more active hydrogen atoms.Type: GrantFiled: April 25, 2003Date of Patent: June 6, 2006Assignee: Lohmann GmbH & Co. KGInventors: Dirk Caspari, Frank Kura, Mario Schutte, Kurt Seeger
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Patent number: 7001966Abstract: The present invention relates to a process for preparing an isobutene polymer using a cyclopentene derivative as initiator and to the isobutene polymer obtainable by means of the process and to particular functionalization products thereof.Type: GrantFiled: February 27, 2003Date of Patent: February 21, 2006Assignee: BASF AktiengesellschaftInventors: Gabriele Lang, Arno Lange, Hans Peter Rath, Helmut Mach
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Patent number: 6984675Abstract: An aqueous dispersion has an addition polymer (B) formed in situ on a sulfopolyester (A). The sulfopolyester (A) is formed as a polycondensation product of first and second reaction mixtures. The first reaction mixture includes at least about 70 mol. % of terephthalic acid or an ester thereof, and about 4–20 mol. % of a difunctional ester forming sulfomonomer containing at least one metal sulfonate group attached to an aromatic nucleus, wherein the functional groups are selected from the group consisting of hydroxyls, carboxyls and alkyl esters. The second reaction mixture includes at least two different glycols, at least about 20 mol. % of the second reaction mixture being ethylene glycol. The addition polymer (B) is formed in situ on the sulfopolyester (B) by polymerizing styrene monomer.Type: GrantFiled: March 19, 2002Date of Patent: January 10, 2006Assignee: Resolution Specialty Materials LLCInventors: David Joe Lesley, Gregory David Lesley, Darrell Scott Nasser, Kenneth Ray Barton, Eurrell Thomas Eubanks
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Patent number: 6828401Abstract: The present invention relates to novel synthetic methods for PEG-maleimide derivatives, specifically, novel synthetic methods for PEG-maleimide. The final products thereof are useful as a pegylation reagent in the field of bioengineering and the medicinal field or the preparation of medical appliances and by conjugating with certain moieties or specific domains of polysaccharides and biological proteins such as antibodies as a bio-compatible or bio-degradable polymer.Type: GrantFiled: October 29, 2003Date of Patent: December 7, 2004Assignee: SunBio Inc.Inventors: Kwang Nho, Changmin Hyun, Junghun Lee, Youngkyoung Pak
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Publication number: 20040225097Abstract: The present invention relates to novel synthetic methods for PEG-maleimide derivatives, specifically, novel synthetic methods for PEG-maleimide. The final products thereof are useful as a pegylation reagent in the field of bioengineering and the medicinal field or the preparation of medical appliances and by conjugating with certain moieties or specific domains of polysaccharides and biological proteins such as antibodies as a bio-compatible or bio-degradable polymer.Type: ApplicationFiled: October 29, 2003Publication date: November 11, 2004Inventors: Kwang Nho, Changmin Hyun, Junghun Lee, Youngkyoung Pak
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Patent number: 6809164Abstract: The invention concerns a method for preparing polymers, characterised in that it consists in contacting: at least an ethylenically unsaturated polymer, at least a source of free radicals, and at least a compound of general formula (IA) wherein R2 represents a group formula (I); R3 being advantageously an electron-attracting group.Type: GrantFiled: June 7, 2002Date of Patent: October 26, 2004Assignee: Rhodia ChimieInventors: Mathias Destarac, Dominique Charmot, Samir Zard, Isabelle Gauthier-Gillaizeau
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Patent number: 6787594Abstract: The invention is the use of a glycolic acid adduct of sodium sulfite as the reducing agent in the redox couple for polymerization of vinyl acetate polymer based emulsions for nonwoven binders which contain formaldehyde, primarily from the self-crosslinking co-monomer N-methylolacrylamide.Type: GrantFiled: October 30, 2000Date of Patent: September 7, 2004Assignee: Air Products Polymers, L.P.Inventors: Joel Erwin Goldstein, Christian Leonard Daniels, Chung-Ling Mao
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Patent number: 6727318Abstract: The present invention relates to a process for preparing dye-comprising aqueous polymer dispersions by free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers in the presence of free-radical initiators, in which at least some of the monomers are employed in the form of an oil-in-water emulsion E1 whose disperse phase comprises at least one oil-soluble dye, wherein the disperse phase of E1 is formed essentially of dye-comprising monomer droplets having a diameter <500 nm. The present invention also relates to perylene dyes of the formula III as set forth in claim 35. The present invention relates in addition to dye-comprising formulations which comprise the dye-comprising polymers of the invention and to pigmented formulations which comprise a polymer of the invention comprising optical brightener.Type: GrantFiled: August 9, 2000Date of Patent: April 27, 2004Assignee: BASF AktiengesellschaftInventors: Klemens Mathauer, Arno Böhm, Walter Mächtle, Peter Rossmanith, Sabine Kielhorn-Bayer, Klaus Müllen, Ulrike Rohr, Friedrich-Wilhelm Raulfs, Ulrike Schlösser, Wolfgang Schrof, Harutyun Hanciogullari, Karl Siemensmeyer, Paul Delavier, Rüdiger Sens, Torsten Freund, Takahiro Ikeda, Takanori Wakebe
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Patent number: 6700023Abstract: A new class of low temperature initiators has been found, enabling fluoroolefin polymerizations at relatively low temperatures. These initiators are diacyl peroxides which allow improved productivity and product properties, as well as more favorable reaction conditions.Type: GrantFiled: February 6, 2002Date of Patent: March 2, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert Clayton Wheland, Ming-Hong Hung
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Publication number: 20040014910Abstract: A process for polymerization of vinyl monomers is described comprising polymerizing vinyl monomers in the presence of an initiating system comprising (i) an organic iodide, organic bromide, organic chloride, or an organic sulfur initiator compound, and (ii) a layered material catalyst, and wherein when the initiator compound comprises an organic bromide or organic chloride compound, the initiating system further comprises an iodide or sulfur containing salt compound or a transition metal salt. The present invention provides a novel method for living polymerization of vinyl monomers, which provides a high level of macromolecular control over the polymerization process and which leads to uniform and controllable polymeric products, which may include well-defined structures and complex architectures.Type: ApplicationFiled: July 16, 2002Publication date: January 22, 2004Applicant: Eastman Kodak CompanyInventor: Jin-Shan Wang
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Patent number: 6649708Abstract: To provide a process for producing polymer particles which are spherical and have smooth surfaces and small contents of oil- and the solvent-soluble at the time of being compounded. Polymer particles are produced by adding 0.099 to 47 parts by mass of a crosslinking vinyl monomer to 100 parts by mass of a vinyl monomer (referred to hereinafter as the monomer) during polymerization reaction at a degree of monomer polymerization of 1 to 100% in order to polymerize the monomer in a solvent in the presence of a dispersant and a polymerization initiator to give polymer particles.Type: GrantFiled: December 17, 2001Date of Patent: November 18, 2003Assignee: Kao CorporationInventors: Makoto Tsuji, Yasushi Sasaki
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Publication number: 20030195310Abstract: Polymers and copolymers synthesized by means that yield a narrow range of molecular weights can have different properties than polymers synthesized by conventional means. In order to obtain such polymers, however, polymerization must be controlled. One type of controlled polymerization is the reversible addition-fragmentation chain transfer (RAFT) process, which has characteristics of a living polymerization. The present invention discloses a group of dithioesters and trithioesters suitable as chain transfer agents for RAFT polymerization. The present invention also discloses RAFT polymerizations conducted in aqueous media.Type: ApplicationFiled: January 6, 2003Publication date: October 16, 2003Applicant: University of Southern MississippiInventors: Charles L. McCormick, Michael S. Donovan, Andrew B. Lowe, Brent S. Sumerlin, David B. Thomas
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Publication number: 20030092806Abstract: The free radical initiated addition polymerisation of ethylenically unsaturated, particularly acrylic monomers in which the dispersed phase is stabilised by a surfactant including at least one anionic surfactant compound of the formula (I): R1—(OA)n—X where R1 is C16 to C22 hydrocarbyl including at least two double bonds; OA is oxyalkylene group; n is from 2 to 60; and X includes at least one acidic H atom, and is particularly a phosphate ester group, or a salt thereof, is described. The use of the surfactants of the formula (I) enable efficient emulsification and thus polymerisation at temperatures above those at which non-ionic unsaturated surfactants are effective. The polymer latex products give polymer films having good water resistance properties.Type: ApplicationFiled: April 17, 2002Publication date: May 15, 2003Inventors: Trevor Graham Blease, Johny Denis Grade